Layered Antiferromagnetic Spin Structure of Expanded-fct Mn(001) Resolved by Low Temperature Spin-Polarized Scanning Tunneling Microscopy

• Main Authors: Chun0I Lu, 呂俊毅
• Other Authors: Minn-Tsong Lin
• Format: Others
• Language: en_US
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/82016580976087699569

碩士 === 國立臺灣大學 === 物理研究所 === 97 === Expanded face-centered tetragonal (e-fct) Mn (001) layers have been demonstrated to grow stably on Co/Cu(001) template. From the MOKE measurements, the antiferromagnetic properties of e-fct Mn has been studied through the behavior of the temperature and thickness dependence. In addition, with the surface spin sensitive techniques, spin-polarized scanning tunneling microscopy, the spin configuration on surface of such expanded-fct Mn(001) can be resolved. By using the 40 ML Fe coated W tip of in-plane magnetic anisotropy direction preference, the in-plane layered antiferromagnetic spin structures of e-fct Mn have been observed at the 77.5 K in ultrahigh vacuum environment. We observed the spin frustration phenomenon along the edge. The OOMMF simulation could obtain the consistent result.