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2007 MRS Fall Meeting & Exhibit

November 26 - 30, 2007  | Boston
Meeting Chairs:
 Duane Dimos, Mary Galvin, David Mooney, Konrad Samwer

Symposium I : Nanoscale Magnetic Materials and Applications

2007-11-26   Show All Abstracts

Symposium Organizers

J. Ping Liu University of Texas-Arlington
Eric Fullerton University of California-San Diego
Oliver Gutfleisch IFW Dresden
Dave Sellmyer University of Nebraska-Lincoln
I1: Nanomagnetism, Theoretic Aspects
Session Chairs
Dave Sellmyer
Monday PM, November 26, 2007
Commowealth (Sheraton)

9:30 AM - I1.1
Domain Wall Formation and Domain Wall Resistivities in CocFe1-c and CocNi1-c.

Peter Weinberger 1
1 , Center for Computational Materials Science, Vienna Austria

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9:45 AM - I1.2
Magnetization Reversal in Small FePt:Fe Particles.

Ralph Skomski 1 , J. Liu 2 , Chuan-bing Rong 2 , David Sellmyer 1
1 Nebraska Center for Materials and Nanoscience, and Department of Physics and Astronomy, University of Nebraska, Lincoln, Nebraska, United States, 2 Department of Physics, University of Texas, Arlington, Texas, United States

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10:00 AM - I1.3
Surface Induced Reduction of Magnetization in Nanoparticles with Competing Exchange Interactions.

Christopher Westman 1 , Joshua Koch 1 , Renat Sabirianov 1 , Hao Zeng 2
1 Physics, University of Nebraska at Omaha, Omaha, Nebraska, United States, 2 Physics, University at Buffalo, the State University of New York, Buffalo, New York, United States

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10:15 AM - I1.4
Two Different Magnetization Reversal Modes in Iron Oxide Nanotubes of Systematically Varied Geometry.

Julien Bachmann 1 , Juan Escrig Murua 2 , Jing Jing 1 , Dora Altbir 2 , Ulrich Goesele 1 , Kornelius Nielsch 1
1 Experimental Department II, Max Planck Institute of Microstructure Physics, Halle Germany, 2 Departamento de Fisica, Universidad de Santiago de Chile, Santiago Chile

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10:30 AM - **I1.5
Theoretical Limit on the Minimal Switching Field and the Switching Current in Magnetization Reversal.

Xiangrong Wang 1
1 , Hong Kong University of Science & Technology, Kowloon, Hong Kong, China

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11:00 AM - *
COFFEE BREAK

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I2: Magnetoresistance, Principles and Devices
Session Chairs
Xiangrong Wang
Monday PM, November 26, 2007
Commowealth (Sheraton)

11:30 AM - **I2.1
Magnetic Tunneling: Pitfalls, Temperature Dependence and Novel Phenomena.

Ivan Schuller 1 , Igor Roshchin 1 , Casey Miller 1 , Zhi-Pan Li 1 , Johan Akerman 2
1 Physics Department, University of California - San Diego, La Jolla, California, United States, 2 Department of Microelectronics and Applied Physics, Royal Institute of Technology, Kista Sweden

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12:00 PM - I2.2
Large Current Suppression Induced by Magnetic Molecular Channels on the Exposed Sides of Magnetic Tunnel Junctions.

Pawan Tyagi 1 , Bruce Hinds 1 2 , Dongfeng Li 2 , Stephen Holmes 2
1 Chemical and Materials Engg., University of Kentucky, Lexington, Kentucky, United States, 2 Department of Chemistry, University of Kentucky, Lexington, Kentucky, United States

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12:15 PM - I2.3
Nanoscaled Magnetoelectronical Sensors for Mechanical Measurements.

Eckhard Quandt 1 2 , Dirk Meyners 1 , Jochen Puchalla 2
1 Faculty of Engineering, University of Kiel, Kiel Germany, 2 Smart Materials, caesar, Bonn Germany

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12:30 PM - **I2.4
MgO-based Magnetic Tunnel Junctions.

Michael Coey 1 , Gen Feng 1 , Jia-Feng Feng 1 , P. Stamenov 1 , K. Oguz 1 , S. van Dijken 1
1 School of Physics / CRANN, University of Dublin, Trinity College, Dublin 2 Ireland

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I3: Exchange Coupling & Exchange Bias
Session Chairs
Eric Fullerton
J. Ping Liu
Monday PM, November 26, 2007
Commowealth (Sheraton)

2:30 PM - I3.1
Angular Dependence of Perpendicular Exchange Bias in FeMn/(FeNi/FeMn)n Multilayers.

Li Sun 1 , Hao Xing 1
1 Mechanical Engineering, University of Houston, Houston, Texas, United States

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2:45 PM - I3.2
Exchange Bias of Ni/FeF2 Bilayers as a Function of the Antiferromagnetic Thickness.

Rafael Morales 1 2 , Ivan Schuller 1
1 Physics Department, University of California San Diego, La Jolla, California, United States, 2 Departamento de Fisica, Universidad de Oviedo, Oviedo Spain

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3:00 PM - **I3.3
Factors Affecting Exchange Bias in Polycrystalline Metallic Thin Films.

Luis Fernandez-Outon 1 , Gonzalo Vallejo-Fernandez 1 , K. O'Grady 1
1 Department of Physics, The University of York, York United Kingdom

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