1998 MRS Fall Meeting & Exhibit

* Invited paper

SESSION Q1: HTS THIN FILMS I 
Chairs: Siu Wai Chan and Michael P. Siegal 
Monday Morning, November 30, 1998 
Independence Center (S)

8:30 AM *Q1.1 
EVIDENCE OF QUASI-LIQUID LAYER AND VAPOR-LIQUID-SOLID (VLS) MODE CVD GROWTH OF Y123 COMPARED WITH LPE. I. Hirabayashi, Y. Yoshida, M. Hasegawa, Y. Yamada, K. Matsumoto, Superconducting Research Laboratory, ISTEC, Nagoya, JAPAN; K. Higashiyama, Hitachi Research Laboratory, Hitachi Ltd., Hitachi, JAPAN. 

9:00 AM Q1.2 
LOW TEMPERATURE GROWTH OF ULTRA THIN TO THICK HG-HTS FILMS. Judy Wu, Lan Fang, Yiyuan Xie, Shao-lin Yan, T. Aytug, A. Gapud, R. Aga, B.W. Kang, S.Y. Han, Univ. of Kansas, Lawrence, KS; J.R. Liu and W.K. Chu, TcSUH, Univ. of Houston, TX; S.Tidrow and K.Kerchner, US Army Research Lab. 

9:15 AM *Q1.3 
HOW CAN THE FLUX PINNING STRENGTH BE IMPROVED IN HTSC; INTRODUCTION OF PINNING CENTERS OR MODIFICATION OF MATRIX PHASE ITSELF? Kohji Kishio, Jun-ichi Shimoyama, Teruki Motohashi and Koichi Kitazawa, University of Tokyo, Tokyo, JAPAN. 

9:45 AM Q1.4 
LARGE AREA YBCO DEPOSITION BY THERMAL COEVAPORATION ON POLYCRYSTALLINE SUBSTRATES. B. Utz, R. Nies, B. Seebacher, H.-W. Neumueller, Corporate Technology, Siemens AG Erlangen and Munich, GERMANY. 

10:00 AM BREAK 

10:30 AM Q1.5 
THE ROLE OF F IN THE PROCESSING OF TL-1223 THICK FILMS. Jo Moore, Chris Salter, Geoff Grimes, Chris Eastell and Chris Grovenor, Dept. of Materials, University of Oxford, Oxford, UK. 

10:45 AM Q1.6 
A NEW METHOD FOR THE GROWTH OF EPITAXIAL Tl-Ba-Ca-Cu-O SUPERCONDUCTING FILMS. M.P. Siegal, D.L. Overmeyer, E.L. Venturini, P. Newcomer Provencio, and R.R. Padilla, Sandia National Laboratories, Albuquerque, NM. 

11:00 AM Q1.7 
PHASE FORMATION AND MICROSTRUCTURAL DEVELOPMENT IN HG-1223 THICK FILMS. J. Schwartz, J. Marin, P.V.P.S.S. Sastry and S. Peterson, National High Magnetic Field Laboratory, Florida State University and Dept. of Mechanical Engineering, Florida A & M University, Florida State University, Tallahassee, FL; J.C. Moore, T.A. Gladstone and C.R.M. Grovenor, Dept. of Materials, University of Oxford, Oxford, UNITED KINGDOM. 

11:15 AM Q1.8 
HIGH QUALITY La_1.85Sr_0.15CuO₄ THIN FILMS ON LaSrAlO₄ BUFFER LAYERS BY PULSED LASER DEPOSITION. Weidong Si¹, Hong-Cheng Li^1,2, and Xiaoxing Xi¹; ¹Department of Physics, The Pennsylvania State University, University Park, PA; ²National Lab for Superconductivity, Institute of Physics, Chinese Academy of Science, Beijing, CHINA. 

11:30 AM Q1.9 
DEVELOPMENT OF STRONG YBCO GRAIN BOUNDARIES FOR HIGH FIELD DEVICE APPLICATIONS. Wai Lo, D.A. Cardwell, A. Bradley, R.A. Doyle and J. Chrosch, IRC in Superconductivity, University of Cambridge, Cambridge, UNITED KINGDOM. 

11:45 AM Q1.10 
A RHEED ROADMAP TO STOICHIOMETRIC YBA₂CU₃O_7-X. J. Lettieri, C.A. Billman, D. G. Schlom, Penn State University, University Park, PA. 

SESSION Q2: HTS THIN FILMS II 
Chairs: Bernd Stritzker and Keeiichi Tanabe 
Monday Afternoon, November 30, 1998 
Independence Center (S)

1:30 PM Q2.1 
Abstract Withdrawn. 

1:45 PM Q2.2 
IMAGING CURRENT FLOW DISTRIBUTIONS IN POLYCRYSTALLINE Bi₂Sr₂CaCu₂O_x SUPERCONDUCTORS BY MAGNETIC FORCE MICROSCOPY. F. Kral¹, D. Perednis¹, B. Huey², D.A. Bonnell², G. Kostorz¹, L. Gauckler³; ¹ETH Zurich, Institut fur Angewandte Physik, Zurich, SWITZERLAND; ²The University of Pennsylvania, Department of Materials Science, Philadelphia, PA; ³ETH Zurich, Nichtmetallische Werkstoffe, Zurich, SWITZERLAND. 

2:00 PM Q2.3 
NEW APPROACH IN OBTAINING STOICHIOMETRIC PULSED LASER ABLATION AND DEPOSITION OF REBa₂Cu₃O. Cas A.J. Damen, Guus J.H.M. Rijnders, Frank J.G. Roesthuis, Dave H.A. Blank, and Horst Rogalla, Univ. of Twente, Dept. of Applied Physics, Low Temperature Division, THE NETHERLANDS. 

2:15 PM Q2.4 
INVESTIGATION OF STRUCTURAL DISTORTIONS IN OXYGEN DEPLETED YBa₂Cu₃O_7-xSAMPLES. R.P. Sharma, and T. Venkatesan, Center for Superconductivity Research, Physics Departyment, University of Maryland, College Park, MD; Z.H. Zhang, J.R. Liu and W.K. Chu, Texas Center for Superconductivity, University of Houston, Houston, TX; Boyed Veal, A. Paulikas and H. Zheng, Materials Science Division, Argonne National Laboratory, Argonne, IL. 

2:30 PM Q2.5 
YBCO FILM SURFACE SMOOTHING WITH IONIZED CLUSTER BEAM BOMBARDMENT. W.-K. Chu, J.R. Liu, X.M. Lu, D. Fathy, Q. Chen, Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX. 

2:45 PM Q2.6 
GROWTH MODES STUDIES OF ULTRATHIN HTSC YBCO FILMS ON YBaCuNbO BUFFER LAYER. I.Grekhov, L.Delimova, I.Liniichuk, A.Lyublinsky, I.Veselovsky, Dept of Solid State Electronics; A.Titkov, M.Dunaevsky, Dept of Solid State Physics, V.Sakharov, Dept of Plasma Physics, Ioffe Inst RAS, St-Petersburg, RUSSIA. 

3:00 PM BREAK 

3:30 PM Q2.7 
TRI-PHASE EPITAXY AS A NOVEL CONCEPT FOR SUPERCONDUCTING FILM GROWTH. Masashi Kawasaki, Dept. Innovative and Engineered Materials, Tokyo Institute of Technology, Yokohama, JAPAN; Byeong Dae Choi, Kyung Sung Yun, Hideomi Koinuma, Ceramics Materials and Structures Lab., Tokyo Institute of Technology, Yokohama, JAPAN. 

3:45 PM Q2.8 
LARGE AREA PULSED LASER DEPOSITION OF YBCO THIN FILMS AND MAGNETO-OPTICAL CHARACTERIZATION. Wolfgang Biegel, Marcus Kuhn, Bernd Schey, Bernd Stritzker, Univ. of Augsburg, Institute of Physics, Augsburg, GERMANY. 

4:00 PM Q2.9 
THE EFFECT OF GROWTH CONDITIONS ON YBa₂Cu₃O OUTGROWTHS IN THIN FILMS GROWN BY PULSED LASER DEPOSITION. J. Kim, D.B. Chrisey, J.S. Horwitz and C.M. Gilmore, Naval Research Laboratory, Washington, DC. 

4:15 PM Q2.10 
SENSORS FOR IMPROVED CONTROL OF GROWTH OF HTS FILMS BY REACTIVE EVAPORATION. Vladimir Matijasevic, Per Slycke, Zihong Lu, Conductus, Inc., Sunnyvale, CA; Stephen E. Moody, Orca Photonic Systems, Inc., Redmond, WA. 

4:30 PM Q2.11 
OPTIMAL OXYGENATION OF Co-DOPED YBCO THIN FILMS. J.P. Sydow, M. Berninger, D. Chamberlain, R.A. Buhrman, Cornell Univ, Dept of Applied Physics, Ithaca NY; B.H. Moeckly, Conductus Inc, Sunnyvale, CA. 

4:45 PM Q2.12 
APPLICATION OF REAL-TIME SPECTROSCOPIC ELLIPSOMETRY AS A CHARACTERIZATION TOOL FOR MOLECULAR BEAM EPITAXY PROCESSING OF YBa₂Cu. A. Oota, M. Tanaka, Toyohashi University of Technology, Toyohashi, Aichi, JAPAN; T. Tatekawa, N. Matsui, Y. Kintaka, Y. Ishikawa, Murata MFG Co Ltd., Nagaokakyo, Kyoto, JAPAN. 

9:15 AM Q3.3 
FABRICATION OF HIGH-QUALITY CeO₂ THIN FILMS ON YBa₂Cu₃O_x FILMS AND YBa₂Cu₃O_x SINGLE CRYSTALS FOR ELECTRONIC APPLICATIONS. M. Becht, J.G. Wen, F.M. Saba, K. Tanabe, Superconductivity Research Laboratory SRL-ISTEC, Shinonome, Koto-ku, Tokyo, JAPAN. 

9:30 AM Q3.4 
SURFACE/INTERFACE CHEMISTRY AND TUNNEL JUNCTIONS FOR MBE-GROWN (Nd, Ce)₂CuO₄ THIN FILMS. Hideki Yamamoto, Michio Naito, Hisashi Sato, NTT Basic Research Labs, Kanagawa, JAPAN. 

9:45 AM Q3.5 
HTS TUNABLE RESONATORS USING INTERDIGITAL ELECTRODES ON AN STO DIELECTRIC FILM. Hiroyuki Fuke, Yoshiaki Terashima, Hiroyuki Kayano, and Hisashi Yoshino, Toshiba Corporation, Advanced Research Laboratory, Kawasaki, JAPAN. 

10:00 AM BREAK 

10:30 AM Q3.6 
IN-SITU GROWTH MONITORING USING RHEED FOR FABRICATION OF PLANAR REBa₂Cu₃O JUNCTIONS. Guus J.H.M. Rijnders, Dave H.A. Blank, and Horst Rogalla, Univ. of Twente, Dept. of Applied Physics, Low Temperature Division, THE NETHERLANDS. 

10:45 AM Q3.7 
COMPARISON OF THE MICROWAVE FREQUENCY POWER DEPENDENCE OF SURFACE RESISTANCE OF UNPATTERNED AND PATTERNED YBCO THIN FILMS. Hao Xin, MIT, Dept of Physics, Cambridge, MA; D.E. Oates, A.C. Anderson, MIT, Lincoln Lab, Lexington, MA; G.F. Dresselhaus, MIT, Magnet Lab; M.S. Dresselhaus, MIT, Dept of Physics and Dept of Electrical Engineering and Computer Science, Cambridge, MA. 

11:00 AM Q3.8 
PINNED BALSEIRO-FALICOV MODEL OF TUNNELING AND PHOTOEMISSION IN THE CUPRATES. R.S. Markiewicz, C. Kusko, Physics Dept and Barnett Institute, Northeastern Univ, Boston MA; V. Kidambi, Physics Dept, Northeastern Univ, Boston MA. 

11:15 AM Q3.9 
COMPARISON OF FOCUSED ION BEAM AND ELECTRON BEAM FOR HIGH T_c JOSEPHSON JUNCTION FABRICATION. D.-J. Kang¹, B. Ming¹, I. Jin¹, T. Wu¹, Z. Chen^1,3, ¹Center for Superconductivity, Department of Physics, University of Maryland, College Park, MD; W. Booij², M. Blamire², ²Department of Materials Science, University of Cambridge, Cambridge,UNITED KINGDOM; Machalett³, J. Melngailis³, Jon Orloff³, and T. Venkatesan^1,3, ³Department of Electrical Engineering, University of Maryland, College Park, MD. 

11:30 AM Q3.10 
ANNEALING ADJUSTMENT OF YBCO FILM DOPING LEVEL AND OXYGEN DOPING LEVEL EFFECT ON FILM MICROWAVE PROPERTIES. Z. Lu, C. Soble, V. Matijasevic, A. Barfknecht, and C. Huang, Conductus, Inc., Sunnyvale, CA. 

11:45 AM Q3.11 
THE GROWTH OF ORIENTED HIGH Tc THIN FILMS ON POLYCRYSTALLINE MAGNETIC SUBSTRATES FOR MICROWAVE COMMUNICATIONS APPLICATIONS. R.E. Leuchtner, W.F. Brock, University of New Hampshire, Department of Physics, Durham, NH and R. Reade, Lawrence Berkeley Laboratory, Berkeley, CA. 

SESSION Q4: SYMMETRY, INTERFACE, GRAIN BOUNDARIES 
Chairs: B. C. Giessen and David O. Welch 
Tuesday Afternoon, December 1, 1998 
Independence Center (S)

1:30 PM *Q4.1 
MATERIALS ASPECTS OF TRICRYSTAL PAIRING SYMMETRY EXPERIMENTS. Chang C. Tsuei, IBM Thomas J. Watson Reserach Center, Yorktown Heights, NY. 

2:00 PM Q4.2 
CRITICAL CURRENT IN PURE C-AXIS TWIST BI2212 BICRYSTAL GRAIN-BOUNDARIES, A DIRECT MEASUREMENT OF SUPERCONTUCTING ORDER PARAMETER SYMMETRY. Qiang Li, Y. N. Tsay, and M. Suenaga, Department of Applied Science, Brookhaven National Laboratory, Upton, NY. 

2:15 PM Q4.3 
SATURATION OF THE CHARACTERISTIC VOLTAGE OF HIGHLY OXYGENATED YBCO GRAIN BOUNDARY JUNCTIONS. J.P. Sydow, M. Berninger, R.A. Buhrman, Cornell Univ, Dept of Applied Physics, Ithaca NY; B.H. Moeckly, Conductus Inc, Sunnyvale, CA. 

2:30 PM Q4.4 
SUPERCONDUCTING TRANSPORT IN COATED CONDUCTORS AND RELATED MODEL SYSTEMS. D.K. Christen, D.T. Verebelyi, R. Feenstra, D.P. Norton, C. Park, Q. He, C.S. Prouteau, M.F. Chisholm, J.D. Budai, E.D. Specht, A. Goyal, M. Paranthaman, D.F. Lee, and D.M. Kroeger, Oak Ridge National Laboratory, Oak Ridge, TN. 

2:45 PM Q4.5 
TWINNING IN LARGE GRAINS OF YBa₂Cu₃O AS AFFECTED BY THE ADDITION OF Y₂BaCuO₅ PARTICLES. Manoj Chopra^*, Siu-Wai Chan¹, V.S. Boyko¹, ¹Department of Materials Science and Engineering School of Engineering and Applied Science, Henry Krumb School of Mines, Columbia University, New York, NY; ^*Now at IBM, San Jose, CA; R.L. Meng², C.W. Chu², ²Texas Center of Superconducting Research, Houston, TX. 

3:00 PM BREAK 

3:30 PM Q4.6 
INFLUENCE OF GRAIN BOUNDARY FACETS ON CRITICAL CURRENT DENSITIES OF PULSED LASER DEPOSITED YBCO FILMS. R.Kalyanaraman, S. Oktyabrsky, K. Jagannadham and J. Narayan, Dept. of Materials Science and Engineering, North Carolina State University, Raleigh, NC. 

3:45 PM Q4.7 
STUDIES OF TRANSBOUNDARY CURRENT AS FUNCTION OF BOUNDARY MISOREINTATION AND ITS INCLINATION USING THE SCANNING SQUID MICROSCOPE. Siu Wai Chan, Jack W.H. Tsai, Henery Krumb School of Mines, Columbia University, New York, NY; John Kirtley, IBM T.J. Watson Research Center, Yorktown Heights, NY. 

4:00 PM Q4.8 
GRAIN BOUNDARY STRUCTURE AND LENGTH-SCALE ISSUES FOR INTERGRANULAR DISSIPATION IN HIGH TEMPERATURE SUPERCONDUCTORS *. D.J. Miller, K.E. Gray, D.H. Kim, M.B. Field, T.A. Byrne; Materials Science Division, Argonne National Laboratory, Argonne, IL. 

4:15 PM Q4.9 
SUPERCONDUCTING JOINT RESISTANCE BETWEEN THE SIVER SHEATHED Bi-2212 MULTI-FILAMENTARY ROUND WIRES. Rikuo Ogawa, Takashi Ohgaki, Sudsakon Sairote, Noriuki Goto,Toyohashi Univ of Technology, Dept of Electrical and Electronic Engineeing, Toyohashi, Japan; Takashi Hase, Seiji Hayashi, Masao Shimada, Kobe Steel, Ltd., Kobe, J APAN. 

4:30 PM Q4.10 
UNIDIRECTIONAL SOLIDIFICATION OF YBCO/Ag SUPERCONDUCTOR FOR CURRENT LEAD APPLICATION. Junya Maeda, Yuh Shiohara, Superconductivity Research Laboratory (SRL), International Superconductivity Technology Center (ISTEC), Koto-ku, Tokyo, JAPAN. 

4:45 PM Q4.11 
GROWTH OF YBa₂Cu₃O/Gd_0.6Ca_0.4Ba_1.6La_0.4Cu₃O BILAYERS FOR THE ENHANCEMENT OF CRITICAL CURRENT IN HIGH MAGNETIC FIELDS. Y. Gim^* and Q.X. Jia, Superconductivity Technology Center, Los Alamos, NM; J.P. Zhou, C.E. Jones and J.T. McDevitt, Department of Chemistry and Biochemistry, University of Texas, Austin, TX ; J.B. Goodenough, Center for the Materials Science and Engineering, University of Texas, Austin, TX. 

SESSION Q5: POSTER SESSION: 
HTS THIN FILMS, DEVICES, ETC. 
Chairs: Siu Wai Chan and Manoj Chopra 
Tuesday Evening, December 1, 1998 
8:00 P.M. 
Grand Ballroom (S)

Q5.1 
CHEMICAL AND MORPHOLOGICAL MODIFICATION OF TARGETS DURING PULSED LASER DEPOSITION OF YBCO THIN FILMS. Rand Biggers, Iman Maartense, David Dempsey, Timothy Peterson, John Jones, John Busbee, Materials and Manufacturing Directorate, AFRL, WPAFB, OH; Gregory Kozlowski, Charles Oberly, Propulsion Directorate, AFRL, WPAFB, OH; David Mast, University of Cincinnati, Dept of Physics, Cincinnati, OH. 

Q5.2 
USE OF HALOGENS IN SUPERCONDUCTOR FABRICATION. Sharmila M. Mukhopadhyay, Mechanical & Materials Engineering, Wright State University, Dayton, OH. 

Q5.3 
ACCELERATED CORROSION STUDIES OF HIGH-T_C YBa₂Cu₃O₇ FILMS AND DEVICES. Chris E. Jones, John T. McDevitt and JiPing Zhou, Department of Chemistry, The University of Texas at Austin, Austin, TX; Quanxi Jai and Y. Gim, Superconductivity Technology Center, Los Alamos National Laboratory, Los Alamos, NM. 

Q5.4 
PHASE STABILITY FOR THE IN-SITU GROWTH OF ND_1+xBA_2-xCU₃O_y FILMS USING PULSED-LASER DEPOSITION. C. Cantoni, Univ of Salerno, Salerno, ITALY; D.P. Norton, D.M. Kroeger, M. Paranthaman, D.K. Christen, D. Verebelyi, R. Feenstra, D.F. Lee, E.D. Specht, Oak Ridge National Laboratory, Oak Ridge, TN; V. Boffa, Centro Ricerche Enea Frascati, Rome, ITALY; and S. Pace, Univ of Salerno, Salerno, ITALY. 

Q5.5 
INTERPLAY BETWEEN THE MICROSTRUCTURE AND THE SUPERLATTICE STRUCTURE ON THE ANISOTROPY AND PINNING MECHANISMS IN A-AXIS ORIENTED 123 SUPERCONDUCTING SUPERLATTICES. E. M. Gonzalez, J. L. Vicent, Dpto. Fisica de Materiales, Facultad CC. Fisicas, Universidad Complutense, Madrid, SPAIN; J. M. Gonzalez, Dpto. Propiedades Opticas, Magneticas y de Transporte, Instituto Ciencia Materiales, CSIC, Cantoblanco, Madrid, SPAIN. 

Q5.6 
PREPARATION OF TEXTURED YBCO FILMS USING ALL IODIDE PRECURSORS. Ichiro Matsubara, M. Paranthaman, Amit Singhal, R. D. Hunt, Catherine Vallet, Patrick Martin, Oak Ridge National Laboratory, Oak Ridge, TN. 

Q5.7 
2-D GROWTH OF PBCO FILMS ON STO BUFFERED MgO(100). Hiroaki Myoren, Dept of Electrical and Electronic Systems, Fac of Engineering, Saitama Univ, Urawa, JAPAN; Guus J.H.M. Rijnders, Dave H.A. Blank and Horst Rogalla, Low Temperature Division, Fac of Applied Physics, Univ of Twente, Enschede, The NETHERLANDS. 

Q5.8 
GROWTH OF La_2-xSr_xCuO₄ SINGLE-CRYSTALLINE FILMS BY LIQUID PHASE EPITAXIAL TECHNIQUE. Hideyoshi Tanabe, Isao Tanaka, Satoshi Watauchi, Hironao Kojima, Yamanashi Univ, Fac of Engineering, Yamanashi, JAPAN. 

Q5.9 
TRANSMISSION ELECTRON MICROSCOPY OF NEW RUTHENATE AND TITANATE LAYERED PEROVSKITES. Mark A. Zurbuchen, Yunfa Jia, Jeffrey H. Haeni, Altaf H. Carim, and Darrell G. Schlom, The Pennsylvania State University, Department of Materials Science and Engineering, University Park, PA. 

Q5.10 
PUZZLING HALL SIGN ANOMALY IN HIGH-TC SUPERCONDUCTORS. B.W. Kang, J.Z. Wu, Univ. of Kansas, Dept of Physics and Astronomy, Lawrence, KS; W.N. Kang, Q.Y. Chen and W.K. Chu, TcSUH, Univ. of Houston, Houston, TX; Z.F.Ren, State Univ. of New York, Buffalo, NY. 

Q5.11 
THE SO(6) SYMMETRY GROUP IN THE CUPRATE SUPERCONDUCTORS. C. Kusko, R.S. Markiewicz; Physics Dept and Barnett Institute, Northeastern Univ, Boston MA; M.T. Vaughn, Physics Dept, Northeastern Univ. 

Q5.12 
ACOUSTO-ELECTRIC EFFECT IN A MIXED STATE OF TYPE-II SUPERCONDUCTORS. Eugene Gutliansky, Institute of Physics, Rostov State University, Rostov-on -Don, RUSSIA. 

Q5.13 
INFLUENSE OF QUANTUM DIMENSIONAL EFFECTS ON SPECTRUM OF ANGLE DISTRIBUTION OF QUANTUMS OF TWO-PHOTON ELECTRON -POSITRON ANNIHILATION IN LAUER SUPERCONDUCTIVE OXIDS. Adham Paisiev, Institute of Electronics, Dept. of Positron Diagnostics, Tashkent, UZBEKISTAN. 

Q5.14 
GEOMETRICAL SURFACE-BARRIER OF A STRIP-LINE THIN FILM. D. Agassi and R.J. Cullen, Naval Surface Warfare Center, Carderock Division, Carderock, MD. 

Q5.15 
MICROWAVE CHARACTERISTIC OF YBCO THIN FILMS BY HOT-WALL TYPE MOCVD. T. Inoue, Y. Okazaki, N. Hasegawa^**, M. Hasegawa^*, Y. Yoshida^*, I. Hirabayashi^*, A. Tamaki^**, Y. Enomoto and K. Suzuki Superconductivity Research Laboratory, ISTEC, Tokyo, JAPAN ^*Superconductivity Research Laboratory, ISTEC, Nagoya, Japan ^**Tokyo Denki University, Tokyo, JAPAN. 

Q5.16 
Abstract Withdrawn. 

Q5.17 
FABRICATION OF HIGH T_c JOSEPHSON TRENCH JUNCTIONS BY FOCUSED ION BEAM MILLING. Bin Ming, Dae-Joon Kang, Insik Jin, Subash Pai and T. Venkatesan, Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, MD; Frank Machalett, Chung-Hsin Chen, John Melngailis, Jon Orloff, Department of Electrical Engineering, University of Maryland, College Park, MD. 

Q5.18 
GRAIN BOUNDARY TOPOGRAPHY AND STRUCTURE AT THE TRIJUNCTION IN A SrTiO₃ TRI-CRYSTAL SUBSTRATE. Mei Zhou, S.E. Babcock, Materials Science and Applied Superconductivity Center, University of Wisconsin, Madison, WI; C.C. Tsuei, IBM T.J. Watson Research Center, Yorktown Heights, NY. 

Q5.19 
Abstract Withdrawn. 

Q5.20 
ISOTHERMAL UNDERCOOLING SOLIDIFICATION OF RE123 BULK SUPERCONDUCTIVE OXIDES. Makoto Kambara^*, Takateru Umeda, Department of Metallurgy, The University of Tokyo, Tokyo, JAPAN; Kouich Miyake, Kiyoshi Murata, Department of Materials Science, Shibaura Institute of Technology, Tokyo, JAPAN; Yuh Shiohara, Superconductivity Research Laboratory (SRL), International Superconductivity Technology Center (ISTEC), Tokyo, JAPAN; ^*Research Fellow of the Japan Society for the Promotion of Science. 

Q5.21 
MICROSTRUCTURE AND TRANSPORT PROPERTIES OF YBCO/Ag SAMPLES IRRADIATED WITH ELECTRONS AT HIGH DOSES. L. Lopez, CCMC-UNAM, Ensenada, B.C.; R. Rangel, Esc. de Ingenieria Quimica, Universidad Michoacana de S.N.H., Morelia, Michoacan, MEXICO; D.H. Galvan, Centro de Ciencias de la Materia Condensada, Ensenada, B.C., MEXICO; E. Adem, Instituto de Fisica-UNAM, Mexico D.F.; M.B. Maple, University of California, San Diego, Insitute for Pure and Applied Physical Sciences, La Jolla, CA. 

Q5.22 
SINGLE DOMAINS OF Dy-123 BY THE SEEDING TECHNIQUE ON Dy₂O₃. Françoise Auguste, André Rulmont, Rudi Cloots, Philippe Vanderbemden, Hassan Bougrine, Nicolas Vandewalle, Marcel Ausloos, SUPRAS, Université de Liège, Liege, BELGIUM. 

Q5.23 
SINGLE CRYSTAL GROWTH OF CALCIUM DOPED Y_1-xCa_xSr₂Cu₂GaO₇. Donggeun Ko, Kenneth R. Poeppelmeier, Northwestern Univ, Dept of Chemistry, Sci Tech Center for Superconductivity; Claude L. Mertzenich, Luther College, Dept of Chemistry, Decorah, IA; Wharton Sinkler, Laurence D. Marks, Northwestern Univ, Dept of Materials Science & Engineering, Evanston, IL. 

Q5.24 
OXYGEN THERMODESORBTION OF  SOLID SOLUTIONS. Alexey A. Ziborov, Vladimir S. Petrov, Moscow State Institute of Electronics and Mathematics, Moscow, RUSSIA; Tatiana N. Kol'tsova, George D. Nipan, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, RUSSIA. 

Q5.25 
THE TUNGSTEN SUBSTITUTION OF CATIONS IN . George D. Nipan, Tatiana N. Kol'tsova, Viacheslav V. Volkov, Andrey V. Filatov, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, RUSSIA; Yan V. Zubavichus, Yurii L. Slovokhotov, Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, RUSSIA. 

Q5.26 
THE MEASUREMENT OF OXYGEN-ION RADII IN YB₂Cu₃O_7-x BY MEANS OF POSITRONS. Mikhail Nishchenko, Stanislav Likhtorovich, Alexander Gerasimov, Institute for Metal Physics, Dept of Electronic Structure, Kiev, UKRAINE. 

Q5.27 
SEARCHING FOR SUPERCONDUCTIVITY IN La-DOPED Sr₂TiO₄ FILMS GROWN BY MBE. Jeffrey H. Haeni, Darrell G. Schlom, Pennsylvania State University, Dept of Materials Science and Engineering, University Park, PA; Ling N. Zou, Ying Liu, Pennsylvania State University, Dept of Physics, University Park, PA; Wei Tian, Xiaoqing Pan, University of Michigan, Dept of Materials Science and Engineering, Ann Arbor, MI. 

Q5.28 
SUPERCONDUCTIVITY OF (Y,Ca)(Ba,Pr/La)₂Cu₃O. J. Ulanday, J. Obien and B. Jayaram, Materials Science Program, Department of Physics, University of Nebraska at Omaha, Omaha, NE. 

Q5.29 
FAST SYNTHESIS OF TEXTURED YBCO CERAMICS DURING GAMMA-IRRADIATION. Elvira Ibragimova, Eldar Gasanov, Olga Polyak, Inst of Nuclear Physics, Tashkent, UZBEKISTAN. 

SESSION Q6: HTS MATERIALS, SYNTHESIS AND PROCESSING 
Chairs: Balu Balachandran and Wei-Kan Chu 
Wednesday Morning, December 2, 1998 
Independence Center (S)

8:30 AM *Q6.1 
MATERIAL ISSUES OF HIGH TEMPERATURE SUPERCONDUCTORS. C.W. Chu, Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX. 

9:00 AM *Q6.2 
SOLIDIFICATION PROCESSING OF Re-123 OXIDES. Yuh Shiohara, Superconductivity Research Laboratory (SRL), International Superconductivity Technology Center (ISTEC), 10-13 Shinonome 1-chome, Koto-ku, Tokyo, JAPAN. 

9:30 AM Q6.3 
FABRICATION PROCESS OF TWIN-FREE ORTHORHOMBIC Nd123 SINGLE CRYSTAL UNDER UNI-AXIAL COMPRESSION. Akihiro Oka, Satoshi Koyama and Yuh Shiohara, Superconductivity Research Laboratory (SRL), International Superconductivity Technology Center (ISTEC), Tokyo, JAPAN. 

9:45 AM Q6.4 
CONTROL OF THE TEMPERATURE SOLIDIFICATION RANGE OF TOP SEEDED YBaCuO. Eric Beaugnon, Gilles Aymoz, Xavier Chaud, Dirk Isfort, Pierre Gautier-Picard, Robert Tournier, CNRS, Grenoble, FRANCE. 

10:00 AM BREAK 

10:30 AM Q6.5 
THE STABILIZATION OF SECONDARY PHASE EPITAXIAL INCLUSIONS IN (001)RBa₂Cu₃O_7-x THIN FILMS. S. Samoylenkov, O. Gorbenko, I. Graboy, A. Kaul, Dept of Chemistry, Moscow State Univ, RUSSIA; V. Svechnikov, H. Zandbergen, National Center for HREM, TU Delft, THE NETHERLANDS. 

10:45 AM Q6.6 
PHASE DIAGRAM STUDIES IN THE SYSTEM Tl₂O₃-BaO-CaO-CuO. Peter Majewski, Arthur Jalowiecki, Fritz Aldinger, Max-Planck-Institut für Metallforschung, Pulvermetallurgisches Laboratorium, Stuttgart, GERMANY. 

11:00 AM Q6.7 
SYNTHESIS OF Re-DOPED Hg-Ba-Ca-Cu-O SUPERCONDUCTORS. P.V.P.S.S. Sastry, and J. Schwartz, National High Magnetic Field Laboratory, Florida State University and Department of Mechanical Engineering, Florida A & M University, Florida State University, Tallahassee, FL. 

11:15 AM Q6.8 
THERMAL STABILITY AND DECOMPOSITION KINETIC STUDIES OF THE SUPERCONDUCTING PHASE IN UNDOPED AND M(Sn, Sb) DOPED Hg-1223 SUPERCONDUCTOR. J. Q. Li, C. C. Lam, L. J. Shen and Y. S. Chen, Department of Physics and Materials Science, City University of Hong Kong, HONG KONG. 

11:30 AM Q6.9 
EFFECT OF Ag ON THE PRIMARY CRYSTALLIZATION FIELD OF THE Pb-2223 HIGH T_c SUPERCONDUCTOR. Winnie Wong-Ng, Lawrence P. Cook, Anthony Kearsley, National Institute of Standards and Technology, Gaithersburg, MD; William Greenwood, Craig Lawrence, University of Maryland, College Park, MD. 

11:45 AM Q6.10 
A COMPARATIVE STUDY OF Tl,Hg-BASED 2212 TYPE SUPERCONDUCTORS. Martin Valldor, Philippe Boullay, Ingrid Bryntse, Department of Inorganic Chemistry, University of Stockholm, SWEDEN. 

SESSION Q7: FLUX PINNING 
Chairs: Joseph I. Budnick and David K. Christen 
Wednesday Afternoon, December 2, 1998 
Independence Center (S)

1:30 PM *Q7.1 
FLUX PINNING IN HIGH CRITICAL TEMPERATURE SUPERCONDUCTORS. Masaki Suenaga, Brookhaven National Laboratory, Dept. of Applied Science, Upton, NY. 

2:00 PM Q7.2 
BARRIER TO VORTEX ENTRY RAISES BOTH CRITICAL CURRENT AND AC LOSS IN SUPERCONDUCTIVE FILMS^*. H.R. Kerchner, D.P. Norton, A. Goyal, J.D. Budai, R. Feenstra, D.F. Lee, D.M. Kroeger, and D.K. Christen, Oak Ridge National Laboratory, Oak Ridge, TN. 

2:15 PM Q7.3 
IMPROVING FLUX PINNING VIA REACTIVE ADDITIONS IN BULK AND SILVER SHEATHED BI2SR2CACU2OX SUPERCONDUCTORS. Ulf Peter Trociewitz, Justin Schwartz, National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL; Peter R. Sahm, Foundry Institute, Aachen University of Technology, Aachen, GERMANY.