1998 MRS Fall Meeting & Exhibit

* Invited paper

SESSION P1: SPIN POLARIZED TUNNELING 
Chair: Harold Y. Hwang 
Monday Morning, November 30, 1998 
Suffolk (M)

8:30 AM *P1.1 
ELECTRON SPECTROSCOPIES ON MANGANESE PEROVSKITES: HALF METALLICITY AND SURFACE BOUNDARY MAGNETIZATION. J.-H. Park, National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY. 

9:00 AM *P1.2 
MAGNETOTRANSPORT IN MANGANITE TRILAYER JUNCTIONS. Jonathan Z. Sun, IBM T. J. Watson Research Center, Yorktown Heights, NY. 

9:30 AM *P1.3 
SPIN INJECTION PHENOMENA IN OXIDE FERROMAGNET OXIDE SUPERCONDUCTOR HETEROSTRUCTURES. V. A. Vas'ko, K. R. Nikolaev, P. A. Kraus, A. M. Goldman, University of Minnesota, School of Physics and Astronomy, Minneapolis, MN. 

10:00 AM BREAK 

10:30 AM *P1.4 
LOW FIELD MAGNETORESISTANCE IN CMR MANGANITES. Jan E. Evetts, Neil D. Mathur, Steve P. Isaac, Neil K. Todd and Mark B. Blamire, Department of Materials Science, University of Cambridge, Cambridge, UNITED KINGDOM; Lesley F. Cohen, Blackett Laboratory, Imperial College, London, UNITED KINGDOM; Judith L. McManus Driscoll, Department of Materials, Imperial College, London, UNITED KINGDOM. 

11:00 AM P1.5 
MAGNETOTRANSPORT IN TRILAYER COLOSSAL MAGNETORESISTANCE TUNNEL JUNCTIONS. M.S. Rzchowski, X.W. Wu, Physics Dept., University of Wisconsin-Madison, Madison, WI; J. O'Donnell, J.N. Eckstein, Physics Department, University of Illinois, Urbana, IL. 

11:15 AM P1.6 
SPIN-POLARIZED TUNNELING MAGNETORESISTANCE IN ORDERED PEROVSKITE . Kei-Ichiro Kobayashi, Tsuyoshi Kimura, Yasuhide Tomioka, Hideaki Sawada, Joint Research Center for Atom Technology (JRCAT), Tsukuba, JAPAN; Kiyoyuki Terakura, JRCAT and National Institute for Advanced Interdisciplinary Research (NAIR), Tsukuba, JAPAN; Yoshinori Tokura, JRCAT and University of Tokyo, Dept of Applied Physics, Tokyo, JAPAN. 

11:30 AM P1.7 
DETERMINATION OF THE SPIN-POLARIZATION OF LSMO USING POINT CONTACT TUNNELING WITH A SUPERCONDUCTING TIP. M.S. Osofsky, R.J. Soulen, Jr., J.M. Byers, B. Nadgorny, P.R. Broussard, M. Rubinstein, Naval Research Laboratory, Washington, DC; G. Laprade, INSA, Toulouse, FRANCE; Y.M. Mukovskii, Moscow State Steel and Alloys Institute, Moscow, RUSSIA. 

11:45 AM P1.8 
TUNNELING MAGNETORESISTANCE IN La_0.8Sr_0.2MnO₃/SrTiO₃/La_0.8Sr_0.2MnO₃ TRILAYERS. Takeshi Obata, Takashi Manako, Yuichi Shimakawa and Yoshimi Kubo, Fundamental Research Laboratories, NEC Corporation, Tsukuba, JAPAN. 

SESSION P2: NOVEL FERROMAGNETIC MATERIALS SYSTEMS 
Chair: Masashi Kawasaki 
Monday Afternoon, November 30, 1998 
Suffolk (M)

1:30 PM *P2.1 
MAGNETISM AND TRANSPORT PROPERTIES OF FERROMAGNETIC SEMICONDUCTOR (Ga,Mn)As. Hideo Ohno, Tohoku University, Res. Inst. Electrical Commun., Sendai, JAPAN. 

2:00 PM P2.2 
FABRICATION AND TRANSPORT PROPERTIES OF THIN FILMS OF NEW MAGNETIC MATERIAL Bi_2-xPb_xSr₃Co₂O. Tsuyoshi Yamamoto, Ichiro Tsukada, Kunimitsu Uchinokura, The Univ of Tokyo, Dept of Applied Physics, Bunkyo-ku, Tokyo, JAPAN. 

2:15 PM P2.3 
MAGNETIC PROPERTIES OF SEVERAL NEW LOW-DIMENSIONAL OXIDES. Hans-Conrad zur Loye, John B. Claridge, Ralph C. Layland, Shalawn L. Kirkland, W. Hampton Henley, Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, SC. 

2:30 PM P2.4 
GIANT MAGNETORESISTANCE IN THIN FILMS OF SILVER CHALCOGENIDES. Ilya S. Chuprakov, Klaus H. Dahmen, Florida State University, Department of Chemistry and MARTECH, Tallahassee, FL. 

2:45 PM BREAK 

3:15 PM *P2.5 
GIANT MAGNETORESISTANCE OF MICROSTRUCTURED METALLIC MULTILAYERS. Teruo Ono, Keio Univ, Dept of Physics, Yokohama, JAPAN; Teruya Shinjo, Kyoto Univ, Inst for Chemical Research, Uji, JAPAN. 

3:45 PM P2.6 
MONOLAYERS OF MAGNETITE NANOCRYSTALLITES. Nicholas A. Kotov, Oklahoma State University, Department of Chemistry, Stillwate, OK; Miguel A. Correa-Duarte, Luis M. Liz-Marz·n, Department of Physical Chemistry and Organic Chemistry, University of Vigo, Vigo, SPAIN; Michael Giersig, Hahn-Meitner Institut, Abt. Physikalische Chemie, Glienickerstr., Berlin, GERMANY; Sergei Yakovenko, Department of Physics, Moscow State University, Moscow, RUSSIA. 

4:00 PM P2.7 
GROWTH AND PROPERTIES OF (TiN/Fe₃O₄)_n MULTILAYER STRUCTURES. A. Orozco, S.B. Ogale, J.E. Garrison, C.M. Innes, Eric J. Li, S.R. Shinde, T. Venkatesan and R. Ramesh. NSF-MRSEC on oxides, surfaces and probes and Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, MD. 

4:15 PM P2.8 
GROWTH AND PROPERTIES OF FERRIMAGNETIC Ti-DOPED -Fe₂O₃ FILMS ON SAPPHIRE. Tatsuo Fujii, Kenji Ayama, Makoto Nakanishi, Jun Takada, Okayama Univ, Faculty of Engineering, Dept of Applied Chemistry, Okayama, JAPAN. 

4:30 PM P2.9 
MAGNETIC ANISOTROPY OF EPITAXIAL COBALT FERRITE THIN FILMS. G. Hu, Dept. of Materials Science and Engineering, Cornell University, Ithaca, NY; R.J. Cava, Dept. of Chemistry, Princeton University, Princeton, NJ; Yuri Suzuki, Dept. of Materials Science and Engineering, Cornell University, Ithaca, NY. 

4:45 PM P2.10 
TRANSPORT, OPTICAL AND ELECTRONIC PROPERTIES OF THE HALF METAL CrO2. I.I. Mazin and D.J. Singh, Naval Research Laboratory, Washington, DC; C. Ambrosch-Draxl, Universitat Graz, Graz, AUSTRIA. 

SESSION P3: CHARGE ORDERING IN CMR MATERIALS 
Chair: Despina Louca 
Tuesday Morning, December 1, 1998 
Suffolk (M)

8:30 AM *P3.1 
ELECTRON DOPED MANGANITES : CHARGE ORDERING AND CMR PROPERTIES. Bernard Raveau, Antoine Maignan, Christine Martin and Maryvonne Hervieu, Laboratoire CRISMAT, ISMRA, CNRS, CAEN cedex - FRANCE. 

9:00 AM P3.2 
CHARGE ORDERING IN THE LAYERED PEROVSKITE MANGANITES. D.B. Romero, NIST, Gaithersburg, MD and University of Maryland, Department of Physics, College Park, MD; V.B. Podobedov, A. Weber, NIST, Gaithersburg, MD; Y. Moritomo, CIRSE and Nagoya University, Department of Applied Physics, Nagoya, JAPAN; H.D. Drew, University of Maryland, Department of Physics, College Park, MD. 

9:15 AM P3.3 
INTERFERENCE COOPERATIVE JAHN-TELLER EFFECT IN COLOSSAL MAGNETORESISTANCE MANGANITES. Michael D. Kaplan, Physics Department, Boston University, Boston, MA and Chemistry Department, Simmons College, Boston, MA; George O. Zimmerman. Physics Department, Boston University, Boston, MA. 

9:30 AM *P3.4 
PHASE CONTROL IN TERMS OF CHARGE/ORBITAL ORDERING IN PEROVSKITE MANGANITES. Y. Tomioka, A. Asamitsu, H. Kuwahara, Joint Research Center for Atom Technology (JRCAT), Tsukuba, JAPAN; Y. Tokura, JRCAT, Tsukuba, JAPAN, and Dept. of Appl. Phys., the Unversity of Tokyo, Tokyo, JAPAN. 

10:00 AM BREAK 

10:30 AM *P3.5 
PAIRED JAHN-TELLER STRIPES: BASIC BUILDING BLOCKS IN CHARGE-ORDERED PEROVSKITE MANGANITES. C. H. Chen, S. Mori, and S-W. Cheong, Bell Labs, Lucent Technologies, Murray Hill, NJ. 

11:00 AM P3.6 
PHOTO-INDUCED EFFECT OF THE ELECTRON-SPIN RESONANCE ON THE CHARGE-ORDERED STATE IN Pr_0.65Ca_0.35MnO₃. Osami Yanagisawa, Mitsuru Izumi, Wei-Zhi Hu,Laboratory of Applied Physics, Tokyo University of Mercantile Marine, Koto-ku, Tokyo, JAPAN: Kenji Nakanishi, Hideo Nojima, Functional Devices Research Laboratory, Sharp Corporation, Kashiwa-shi, Chiba, JAPAN. 

11:15 AM P3.7 
FEMTOSECOND LASER INDUCED CONDUCTIVE AND RESISTIVE TRANSIENTS IN La_0.7Ca_0.3MnO₃: CHARGE TRANSFER AND RELAXATION DYNAMICS. Y.G. Zhao, R. Shreekala, H.D. Drew, M. Rajeswari, S.B. Ogale, T. Venkatesan, Center for Superconductivity Research, Department of Physics, University of Maryland, MD; J.J. Li, C.L. Chen, W.L. Cao, C.H. Lee, Department of Electrical Engineering, University of Maryland, MD; R. Ramesh, NSF MRSEC on Oxides, Thin Films and Surfaces, University of Maryland, MD; G. Baskaran, Institute for Mathematical Sciences, Chennai, INIDA. 

11:30 AM P3.8 
ANOMALOUS LOW TEMPERATURE SPECIFIC HEAT OF CHARGE-ORDERED La_0.5Ca_0.5MnO₃. V. N. Smolyaninova, K. Ghosh, R. L. Greene, Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, MD. 

11:45 AM P3.9 
LOCAL STRUCTURE OF CHARGE ORDERED Bi_1-xCa_xMnO₃ AND La_1-xCa_xMnO₃. Hyungje Woo, Trevor A. Tyson, New Jersey Inst of Tech, Dept of Physics, Newark, NJ; Mark Croft, Rutgers Univ, Dept of Physics, Piscataway, NJ; Sang-Wook Cheong, Rutgers Univ, Dept of Physics, Piscataway, NJ and Bell Lab Lucent Tech, Murray Hill, NJ. 

SESSION P4: PHYSICAL PROPERTIES OF CMR MATERIALS 
Chair: Michael F. Hundley 
Tuesday Afternoon, December 1, 1998 
Suffolk (M)

1:30 PM *P4.1 
DYNAMIC AND STATIC STRUCTURAL DISORDER IN MAGNETIC OXIDES. Despina Louca. 

2:00 PM P4.2 
CHANGES IN THE LOCAL Mn-O BOND LENGTH DISORDER IN LaMnO AND La_0.9MnO₃. C.H. Booth, Los Alamos National Laboratory, Los Alamos, NM; F. Bridges, University of California, Santa Cruz, CA; J.J. Neumeier, Florida Atlantic University, Boca Racon, FL; E.L. Brosha, G.H. Kwei, Los Alamos National Laboratory, Los Alamos, NM. 

2:15 PM P4.3 
THE SPECIFIC HEAT OF Nd_(1-x)Sr_xMnO₃, R.A. Fisher, Y.X. Jian, N.E. Phillips, D.A. Wright, A. Zettl, MSD, Lawrence Berkeley National Laboratory, Berkeley, CA; J.E. Gordon, S.F. Reklis, Physics Department, Amherst College, Amherst, MA. 

2:30 PM P4.4 
ANOMALOUS PROPERTIES OF La_0.8Ca_0.2MnO₃ EPITAXIAL THIN FILMS. R.Shreekala, M. Rajeswari¹, K. Ghosh, V.V. Srinivasu, S.E. Lofland, S.M. Bhagat, J.Y. Gu, M. Downes, R.C. Srivastava, R.P. Sharma, S.B. Ogale¹, R.L. Greene, R. Ramesh¹ and T. Venkatesan¹; ¹NSF MRSEC on Oxides, Thin Films, Probes and Surfaces, Center for Superconductivity Research, Department of Physics/Department of Materials and Nuclear Engineering, University of Maryland, College Park, MD. 

2:45 PM P4.5 
A COLOSSAL OXYGEN ISOTOPE SHIFT OF THE METAL-INSULATOR TRANSITION TEMPERATURE IN THE THIN EPITAXIAL FILMS OF MANGANITES. Oleg Gorbenko, Andrey Kaul, Alexei Bosak, Moscow State Univ, Chemistry Dept, Moscow, RUSSIA; Natalia Babushkina, Lubov' Belova, Kurchatov Institute, Moscow, RUSSIA; Berndt Guettler, PTB, Braunschweig, GERMANY. 

3:00 PM BREAK 

3:30 PM P4.6 
CARRIER DENSITY COLLAPSE AND COLOSSAL MAGNETORESISTANCE IN DOPED MANGANITES. A.M. Bratkovsky, Hewlett-Packard Labs, Palo Alto, CA; A.S. Alexandrov, Loughborough Univ, UNITED KINGDOM. 

3:45 PM P4.7 
DISORDER-INDUCED POLARON FORMATION IN THE DOPED MANGANITES. R. M. Stroud, J. M. Byers, V. M. Browning, W. W. Fuller-Mora, D. Koller, J. Kim, P. R. Broussard, J. O. Cross and D. L. Knies, Naval Research Laboratory, Washington, DC. 

4:00 PM P4.8 
PHYSICAL PROPERTIES OF PEROVSKITE SUPERLATTICES CONTAINING LAYER. Makoto Izumi, Yoshinori Konishi, Takashi Manako, Joint Research Center for Atom Technology (JRCAT), Tsukuba, JAPAN; Masashi Kawasaki, Joint Research Center for Atom Technology (JRCAT), Tsukuba, JAPAN, and Tokyo Institute of Technology, Dept of Innovative and Engineered Materials,Yokohama, JAPAN; Yoshinori Tokura, Joint Research Center for Atom Technology (JRCAT), Tsukuba, JAPAN, and University of Tokyo, Dept of Applied Physics, Tokyo, JAPAN; Youichi Murakami, Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, JAPAN. 

4:15 PM P4.9 
MAGNETIC AND STRUCTURAL CHARACTERIZATION OF DOPED LANTHANUM MANGANITE MULTILAYER FILMS. Vincent Balbarin, Yuri Suzuki, Dept of Materials Science & Engineering, Cornell University, Ithaca, NY; S-W Cheong, Dept of Physics, Rutgers University, Piscataway, NJ. 

4:30 PM P4.10 
ARTIFICIAL CONTROL OF SPIN ORDER, MAGNETIC AND FERROELECTRIC PROPERTIES IN LaMO3 AND BiMO3 (M=Mn, Fe, Cr) SUPERLATTICES. Kenji Ueda, Hitoshi Tabata, Tomoji Kawai, Osaka Univ, ISIR-Sanken, Ibaraki, Osaka, JAPAN. 

4:45 PM P4.11 
SPATIAL SEGREGATION OF LANTHANIDE (Ln) AND ALKALINE EARTH (AE) CATIONS IN THIN FILMS OF (Ln,AE)MnO₃PEROVSKITES AND ITS EFFECT ON THEIR MAGNETORESISANT PROPERTIES. Bernard Mercey, Paul Salvador, JÈrÙme Wolfman, Anne-Marie Haghiri-Gosnet and Bernard Raveau, Laboratoire CRISMAT, ISMRA, Caen, FRANCE. 

SESSION P5: POSTER SESSION: 
COLOSSAL MAGNETORESISTANCE 
Chair: Masashi Kawasaki 
Tuesday Evening, December 1, 1998 
8:00 P.M. 
America Ballroom (W)

P5.1 
ELECTRON TUNNELING MEASUREMENTS ON La_1-xCa_xMnO₃. H.D. Hudspeth, F. Sharifi, Univ of Florida, Dept of Physics, Gainesville, FL and Florida State Univ, National High Magnetic Field Lab, Tallahassee, FL; S. Pietambran, D. Kumar, R.K. Singh, S. Pearton, Univ of Florida, Dept of Materials Science and Engineering, Gainesville, FL; E. Gillman, M. Li, K.-H. Dahmen, Florida State Univ, Dept of Chemistry and Center for Materials Research and Technology, Tallahassee, FL; S. von Molnar, Florida State Univ, Dept of Physics and Center for Materials Research and Technology, National High Magnetic Field Lab, and MARTECH, Tallahassee, FL. 

P5.2 
MEASUREMENTS OF SPIN POLARIZATION OF CHROMIUM DIOXIDE AND HEUSLER ALLOYS. B. Nadgorny, R.J. Soulen, Jr., J.M. Byers, M. Osofsky, T. Ambrose, Naval Research Laboratory, Washington, DC; A. Barry, J.M.D. Coey, Trinity College, Dept of Physics, Dublin, IRELAND; C.T. Tanaka, J.S. Moodera, MIT, Francis Bitter Magnet Laboratory, Cambridge, MA. 

P5.3 
SPIN-DEPENDENT TUNNELING MAGNETORESISTANCE IN Fe-Al₂O₃ INSULATING GRANULAR THIN FILMS. T. Zhu, Y.J. Wang, State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing, CHINA. 

P5.4 
IMPURITIES AND INELASTIC PROCESSES IN MAGNETIC TUNNEL JUNCTIONS. A.M. Bratkovsky, J.H. Nickel, Hewlett-Packard Laboratories, Palo Alto, CA. 

P5.5 
INTERFACIAL TUNNELING AND THE CORRESPONDING MAGNETORESISTANCE IN GRANULAR PEROVSKITES La-Sr-Mn-O. Ning Zhang, Department of Physics, Nanjing Normal University, Nanjing, CHINA; Weiping Ding, Wei Zhong, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, CHINA. 

P5.6 
MAGNETOTRANSPORT IN A-AXIS La_1.4Ca_1.6Mn₂O₇ THIN FILMS. Hidefumi Asano, A. Cavanaugh, S.B. Ogale, M. Rajeswari, I. Jin, T. Venkatesan, Dept. of Physics, University of Maryland, College Park, MD ; J. Hayakawa, Dept. of Crystalline Materials Science, Nagoya University, Nagoya, JAPAN. 

P5.7 
STABILIZING THE CHARGE-ORDERED PHASE IN THIN FILMS OF THE PEROVSKITE MANGANATES. J.Y. Gu, M. Rajeswari¹, R. Shreekala, V. Smolyaninova, M. Downes, M. Lewis, R.P. Sharma, R.C. Srivastava, R. Ramesh¹, R.L. Greene and T. Venkatesan¹ NSF MRSEC on Oxide Thin Films, Probes and Surfaces¹ and Center for Superconductivity Research, University of Maryland, College Park, MD. 

P5.8 
RAMAN-ACTIVE PHONONS IN THE LAYERED PEROVSKITE MANGANITES. D.B. Romero, Optical Tech. Div., NIST, Gaithersburg, MD and Physics Dept., Univ. of Maryland, College Park, MD; V.B. Podobedov, A. Weber, Optical Tech. Div., NIST, Gaithersburg, MD; Y. Moritomo, CIRSE and Dept. of Applied Physics, Nagoya Univ., Nagoya, JAPAN; H.D. Drew, Physics Dept., Univ. of Maryland, College Park, MD. 

P5.9 
METALLIC PHASE OF SOME PEROVSKITES. M. Cyrot, Laboratoire Louis Neel, CNRS, Grenoble, FRANCE. 

P5.10 
RAMAN SPECTROSCOPY OF THIN MANGANATE FILMS. V.B. Podobedov, D.B. Romero, A. Weber, J.P. Rice, National Institute of Standards and Technology; R. Schreekala, M. Rajeswari, R. Ramesh, T. Venkatesan, H.D. Drew, Department of Physics, University of Maryland. 

P5.11 
ZERO-FIELD REENTRANT TRANSITION TO METALLIC STATE IN (La_0.5Pr_0.5)_0.7Ca_0.3MnO₃ FILMS. N. A. Babushkina, L. M. Belova, RRC ``Kurchatov Institute'', Moscow, RUSSIA; D. I. Khomskii, Materials Science Center, University of Groningen, Groningen, THE NETHERLANDS; K. I. Kugel, Sci. Center for Appl. Problems in Electrodynamics, Moscow, RUSSIA; A. R. Kaul, O. Yu. Gorbenko, Chemistry Dept., Moscow State University, RUSSIA. 

P5.12 
ANOMALOUS ELECTRONIC AND MAGNETIC BEHAVIOR OF POLYCRYSTALLINE LA_0.5CA_0.5MNO_3-Z. Ruiping Wang, Rajappan Mahesh, Mitsuru Itoh, Materials and Structures Laboratory, Tokyo Institute of Technology, Midori, Yokohama, JAPAN. 

P5.13 
MAGNETORESISTANCE OF MANGANITE POLYCRYSTALLINE FILMS GROWN BY MOCVD. C. Dubourdieu, D. Boursier, M. Audier, J.P. Snateur, F. Weiss, Laboratoire des Matriaux et Gnie Physique, St Martin d'Hres, France, J. Pierre, Laboratoire L. Nel, Grenoble, FRANCE. 

P5.14 
STUDY OF MAGNETORESISTANCE BEHAVIOR OF SELF-DOPED A_1-xMn O₃ (A = La, Pr) THIN FILMS. D. Kumar, Srinivas V. Pietambaram and Rajiv K. Singh, Department of Materials Science and Engineering, University of Florida, Gainesville, FL. 

P5.15 
EXTRINSIC MAGNETORESISTANCE IN THE La_0.7Sr_0.3MnO₃ THIN FILMS. Jiyeong Gu, S. B. Ogale, T. Venkatesan, and R. Ramesh, Center for Superconductivity Research, Dept. of Physics, Univ. of Maryland, College Park, MD. 

P5.16 
INFLUENCE OF THE OXYGEN ISOTOPE EXCHANGE ON THE MAGNETO-OPTICAL PROPERTIES OF La_0.7-xPr_xCa_0.3MnO₃CERAMICS. Elena Gan'shina, Anna Smechova, Moscow State Univ, Dept of Physics, Moscow, RUSSIA; Oleg Gorbenko, Jan Rebane, Vadim Amelichev, Andrey Kaul, Moscow State Univ, Dept of Chemistry, Moscow, RUSSIA. 

SESSION P6: POSTER SESSION: 
NOVEL FERROMAGNETIC THIN FILMS 
Chair: Masashi Kawasaki 
Tuesday Evening, December 1, 1998 
8:00 P.M. 
America Ballroom (W)

P6.1 
MAGNETORESISTANCE IN HIGHLY ANISOTROPIC LAYERED COBALT OXIDE. Ichiro Tsukada, Tsuyoshi Yamamoto, Kunimitsu Uchinokura, Univ of Tokyo, Dept of Applied Physics, Tokyo, JAPAN. 

P6.2 
PROPERTIES OF PULSED LASER DEPOSITED BaFe12-xScxO19 FILMS. S.A. Oliver, Northeastern University, Center for Electromagnetic Research, Boston, MA; M.L. Chen and C. Vittoria, Northeastern University, Dept. of Electrical and Computer Engineering, Boston, MA. 

P6.3 
FERROMAGNETIC -MNSB MULTILAYERS EPITAXIALLY GROWN ON (111)B GaAs BY PULSED LASER DEPOSITION. Sandra X. Liu, Robert T. Leonard, Nadia A. El-Masry, North Carolina State University, Dept of Materials Science and Engineering, Raleigh, NC; John C. Roberts, Salah M. Bedair, North Carolina State University, Dept of Electrical & Computer Engineering, Raleigh, NC. 

P6.4 
RUTHERFORD BACKSCATTERING AND CHANNELING STUDIES OF Mg and Fe DIFFUSION AT THE INTERFACE OF -Fe₂O₃(001)/MgO(001). S. Thevuthasan, W. Jiang, D.E. McCready, and S.A. Chambers, Pacific Northwest National Laboratory, Richland, WA. 

P6.5 
EXCHANGE BIASING IN EPITAXIAL Fe₃O₄/CoO AND Fe₃O₄/Co_0.16Fe_2.84O₄ BILAYERS PREPARED BY PULSED LASER DEPOSITION. C.A. Kleint,^a M.K. Krause,^b R. Hoehne,^b T. Walter,^a P. Esquinazi, ^a M. Lorenz, ^a R. Schaefer, ^a Institute of Solid State and Materials Research Dresden, ^b Dept of Physics, University of Leipzig, GERMANY. 

P6.6 
ORTHOFERRITE AND GARNET PHASES IN THIN MAGNETIC LAYERS GROWN BY LASER ABLATION. D. S. Schmool, N. Keller, M. Guyot, M. Tessier, R. Krishnan, Laboratoire de Magnetisme et díeptique, Universite de Versailles - CNRS, Versailles, FRANCE; M.-C. Brianso, Departement de Physique, Universite de Versailles, Versailles, FRANCE. 

P6.7 
Abstract Withdrawn. 

P6.8 
FERRIMAGNETIC RESONANCE IN PULSED LASER DEPOSITED YTTRIUM GARNET FILMS. Alex Grishin, V.F. Shkar, S.I. Khartsev, P. Johnsson, Department of Condensed Matter Physics, Royal Institute of Technology, Stockholm, SWEDEN. 

P6.9 
THE DEPENDENCE OF GMR OF GRANULAR Fe_xAg_1-x ON APPLIED MAGNETIC FIELD DIRECTION. T.S. Oh¹, Y. S. Kim² and W. K. Choo¹. ¹Department of Materials Science and Engineering, KAIST, SOUTH KOREA; ²Joint Research Division, Korea Basic Science Institute, SOUTH KOREA. 

P6.10 
GROWTH OF (Ni,Zn)Fe₂O₄ THIN FILMS BY LIQUID DELIVERY METAL-ORGANIC CHEMICAL VAPOR DEPOSITION. D.R. Gangaware, R.R. Woolcott, A.I. Kingon, Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC; J.F. Roeder and T.H. Baum, Advanced Technology Materials, Inc., Danbury, CT. 

P6.11 
MAGNETIC PROPERTIES OF MICROCRYSTALLINE FERRIC HYDROXIDE USED FOR THE PREPARATION OF Fe₂O₃: INFLUENCE OF THE PARTICLE SIZE AND THE METHOD OF PREPARATION ON THE PROPERTIES. Georges Dénès, Concordia University, Department of Chemistry and Biochemistry, Laboratory of Solid State Chemistry and Mössbauer Spectroscopy, and Laboratories for Inorganic Materials, Montreal, Quebec, CANADA; S.C.F. Au-Yeung, Chemistry Department, Chinese University, HONG KONG. 

P6.12 
EFFECT OF NONSTOICHIOMETRY () ON THE MAGNETIC PROPERTIES OF (Mg_0.22Mn_0.07Fe_0.71)O₄ FERRITE. Sun-Ho Kang and Han-Ill Yoo, School of Materials Science and Engineering, Seoul National University, Seoul, KOREA. 

P6.13 
FERROMAGNETISM IN SOLID SOLUTIONS OF BiFeO₃-BaTiO₃ SYSTEM. S.V. Suryanarayana, M. Mahesh Kumar, G.S. Kumar, T. Bhimasankaram, Materials Research Laboratory, Dept of Physics, Osmania University, Hyderabad, INDIA. 

P6.14 
ANGULAR DEPENDENCE OF MAGNETIC MICROSTRUCTURE IN POLYCRYSTALLINE NiO-EXCHANGE-BIASED Co FILMS. Harsh Deep Chopra, Materials Program, Mechanical and Aerospace Engineering Department, and Center for Advanced Photonic and Electronic Materials (CAPEM), SUNY at Buffalo, Buffalo, NY; Susan Z. Hua, Materials Innovation Inc., West Lebanon, NH; H.J. Brown, P.J. Chen, W.F. Egelhoff, Jr., and L.J. Swartzendruber, NIST, Gaithersburg, MD. 

P6.15 
PLD of Zn₂Y HEXAGONAL FERRITE THIN FILMS FOR FREQUENCY SELECTIVE LIMITER APPLICATIONS. H. Kim, H.S. Newman, A. Piqué, J.S. Horwitz and D.B. Chrisey, Naval Research Laboratory, Washington DC. 

P6.16 
SYNTHESIS AND MAGNETIC PROPERTIES OF HAEMATITE WITH DIFFERENT PARTICLE MORPHOLOGIES. Monica Sorescu, Duquesne University, Department of Physics, Pittsburgh, PA; R.A. Brand, Gerhard Mercator Universität, Duisburg, GERMANY; D. Mihaila-Tarabasanu and L. Diamandescu, Institute of Atomic Physics, Bucharest, ROMANIA. 

SESSION P7: MAGNETIC IMAGING/STRUCTURE 
Chair: Yuri Suzuki 
Wednesday Morning, December 2, 1998 
Suffolk (M)

8:30 AM *P7.1 
MAGNETOSTATIC AND MAGNETODYNAMIC STUDIES OF SrRuO₃ BY LORENTZ TRANSMISSION ELECTRON MICROSCOPY. Ann F. Marshall, Center for Materials Research, Stanford University, Stanford, CA; Lior Klein, Department of Physics, Bar-Ilan University, Ramat-Gan, ISRAEL. 

9:00 AM P7.2 
FIELD-AND ORIENTATION-DEPENDENT MAGNETIC DOMAIN STRUCTURES IN La_0.67Sr_0.33MnO₃ THIN FILMS. M.E. Hawley, G.W. Brown, C. Kwon, and Q.X. Jia, Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM. 

9:15 AM P7.3 
MAGNETITE: CHARGE ORDERING, AND ELECTRON HOLOGRAPHY OF MICROMAGNETIC STRUCTURE. M.L. Rudee, Univ. California - San Diego, Center for Magnetic Recording Research, La Jolla, CA; David J. Smith, M.R. McCartney, Arizona State Univ., Center for Solid State Science, Tempe, AZ; D.T. Margulies, IBM Almaden Research Center, San Jose, CA. 

9:30 AM P7.4 
TIME RESOLVED NONLINEAR OPTICAL SPECTROSCOPY OF CHROMIUM SESQUIOXIDE. J.S. Dodge, A. Schumacher, D.S. Chemla, Lawrence Berkeley National Laboratory, Berkeley, CA; J.-Y. Bigot, CNRS, Strasbourg, FRANCE; N. Ingle, M.R. Beasley, Stanford University, Stanford, CA. 

9:45 AM BREAK 

10:15 AM *P7.5 
MICROMAGNETISM AND MAGNETORESISTANCE OF LITHOGRAPHICALLY DEFINED EPITAXIAL Fe AND Co THIN FILM STRUCTURES. Andrew D. Kent, Ulrich Ruediger, Jun Yu, Department of Physics, New York University New York, NY; Stuart S.P. Parkin, IBM Research Division, Almaden Research Center, San Jose, CA. 

10:45 AM *P7.6 
OPTICAL SPECTROSCOPY OF THE LOCAL INSULATOR-METAL TRANSITION IN Pr_1-xCa_xMnO₃. M. Fiebig^1,2 and K. Miyano¹; ¹Department of Applied Physics, The University of Tokyo, Tokyo JAPAN; ²Japan Science and Technology Corporation (JST), Tokyo, JAPAN. 

11:15 AM P7.7 
FERROMAGNETIC RESONANCE AND SURFACE PROCESSING OF CRYSTAL ION SLICED MAGNETIC GARNET FILMS. M. Levy, R.M. Osgood Jr., Columbia University, Department of Applied Physics, New York, NY; F.J. Rachford, Naval Research Laboratory, Materials Physics Branch, Washington, DC; A. Kumar, H. Bakhru, State University of New York at Albany, Department of Physics, Albany, NY. 

11:30 AM P7.8 
PERIODIC BOUNDARY QUANTUM CHEMICAL STUDY ON ZnO ULTRA-VIOLET LASER EMITTING MATERIALS. Yasunori Oumi, Hiromitsu Takaba, S. Salai C