Moon Kyoung-Woong, Lee Jae-Chul, Choe Sug-Bong, Shin Kyung-Ho
School of Physics, Seoul National University, Seoul 151-742, Republic of Korea.
Rev Sci Instrum. 2009 Nov;80(11):113904. doi: 10.1063/1.3262635.
A magnetometric technique for detecting the magnetic anisotropy field of ferromagnetic films is described. The technique is based on the extraordinary Hall voltage measurement with rotating the film under an external magnetic field. By analyzing the angle-dependent Hall voltage based on the Stoner-Wohlfarth theory, the magnetic anisotropy field is uniquely determined. The present technique is pertinent especially for ultrathin films with strong intrinsic signal, in contrast to the conventional magnetometric techniques of which the signal is in proportion to the sample volume and geometry.
描述了一种用于检测铁磁薄膜磁各向异性场的磁力测量技术。该技术基于在外加磁场下旋转薄膜时测量异常霍尔电压。通过基于斯托纳 - 沃尔法特理论分析与角度相关的霍尔电压，可唯一确定磁各向异性场。与信号与样品体积和几何形状成比例的传统磁力测量技术相比，本技术特别适用于具有强本征信号的超薄薄膜。
