• 제목/요약/키워드: Materials science and engineering

검색결과 16,133건 처리시간 0.043초

Angular Dependence of Walker Breakdown Field

  • Heo, C.H.;Kim, W.J.;Lee, T.D.;Lee, K.J.
    • 한국자기학회:학술대회 개요집
    • /
    • 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
    • /
    • pp.214.1-214.1
    • /
    • 2007

  • PDF

Vortex Dynamics in Submicron Exchange Biased Disks

  • Moon, Jung-Hwan;Kim, Woo-Jin;Lee, Taek-Dong;Lee, Kyung-Jin
    • 한국자기학회:학술대회 개요집
    • /
    • 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
    • /
    • pp.238.1-238.1
    • /
    • 2007

  • PDF

GaMnAs의 Be 병행 도핑에 의한 자기 수송 특성 연구 (Magnetotransport of Be-doped GaMnAs)

  • 임완순;윤대식;우부성;고존서;김도진;임영언;김효진;김창수;김종오
    • 한국재료학회지
    • /
    • 제15권1호
    • /
    • pp.73-77
    • /
    • 2005

  • Motivated by the enhanced magnetic properties of Mg-codoped GaMnN ferromagnetic semiconductors, Be-codoped GaMnAs films were grown via molecular beam epitaxy with varying Mn flux at a fixed Be flux. The structural, electrical, and magnetic properties were investigated. GaAs:(Mn,Be) films showed metallic behavior while GaAs:Mn films showed semiconducting behavior as determined by the temperature dependent resistivity measurements. The Hall-effect measurements with varying magnetic field showed clear anomalous Hall effect up to room temperature proving ferromagnetism and magnetotransport in the GaAs:(Mn,Be) films. Planar Hall resistance measurement also confirmed the properties. The dramatic enhancement of the Curie temperature in GaMnAs system was attributed to Be codoping in the GaMnAs films as well as MnAs precipitation.

  • https://doi.org/10.3740/MRSK.2005.15.1.073 인용 PDF KSCI