Temperature Behavior of Uniaxial Anisotropy along [100] Direction in GaMnAs Films

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概要

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• We have investigated a uniaxial anisotropy along the [100] direction of GaMnAs film grown on (001) GaAs. The hysteresis observed in the angular dependence of the planar Hall resistance shifted toward the [010] and [0\bar{1}0] directions. This phenomenon was analyzed by introducing an additional uniaxial anisotropy field H_{\text{u2}} along the [100] direction. The magnitude of H_{\text{u2}} is much smaller than those of the cubic H_{\text{c}} and uniaxial H_{\text{u1}} anisotropy fields for this material. The temperature behavior of H_{\text{u2}} appears to be very similar to that of H_{\text{u1}}, suggesting the possibility that H_{\text{u1}} and H_{\text{u2}} have a common origin.

• 2013-01-25

著者

• FURDYNA Jacek

  Physics Department, University of Notre Dame

• LEE Sanghoon

  Physics Department, Korea University

• LIU Xinyu

  Physics Department, University of Notre Dame

• YOO Taehee

  Physics Department, Korea University

• LEE Hakjoon

  Physics Department, Korea University

• LEE Sangyeop

  Physics Department, Korea University

• Lee Hakjoon

  Physics Department, Korea University, Seoul 136-701, Korea

• Won Jaehyuk

  Physics Department, Korea University, Seoul 136-701, Korea

• Shin Jinsik

  Physics Department, Korea University, Seoul 136-701, Korea

• Lee Sanghoon

  Physics Department, Korea University, Seoul 136-701, Korea

関連論文

• Multi-Valued Planar Hall Resistance Manipulated by Current Induced Magnetic Field in Fe Films Grown on GaAs(001) Substrates
• Temperature Behavior of Uniaxial Anisotropy along [100] Direction in GaMnAs Films
• Multi-Valued Planar Hall Resistance Manipulated by Current Induced Magnetic Field in Fe Films Grown on GaAs(001) Substrates
• Temperature Behavior of Uniaxial Anisotropy along [100] Direction in GaMnAs Films

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