Conductivities for Direct Current and Microwaves with Domain Wall Scattering for Ni-Fe Alloy Thin Films

摘要：

Stripe domain characteristic for Permalloy thin film under external magnetic field are observed with the variation of applying magnetic field measured. The DC resistivity for currents conducting parallel to domain walls (CIW) is significantly smaller than that of the perpendicular (CPW) case as inspected by a magnetic force microscopy (MFM). As the applied frequencies approach the microwave frequency no difference in conductivities for CPW and CIW is observed. This can be expressed that when the signal frequency is up to microwaves, the electron spin scattering with the magnetic domain walls is diminished by the turn-around of carriers before they arrived next domain walls as measured by a T-junction micro-strip line resonator.

作者: Yi-Chen Yeh Juh Tzeng Lue

作者单位: Institute of Photonics Technologies,National Tsing Hua University,Hsin Chu,Taiwan Department of Physics,National Tsing Hua University,Hsin Chu,Taiwan

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)

会议地点: 杭州

会议语种:英文

页码: 1-3

在线出版日期: 2008-03-24（万方平台首次上网日期，不代表论文的发表时间）