Thermal melting of magnetic stripe domains

被引：9
|
作者：
Kuch, W. [1 ]
Fukumoto, K. [1 ]
Wang, J. [2 ]
Nolting, F. [3 ]
Quitmann, C. [3 ]
Ramsvik, T. [3 ]
机构：
[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany
[2] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany
[3] Paul Scherrer Inst, Swiss Light Source, Villigen, Switzerland
来源：
PHYSICAL REVIEW B | 2011年 / 83卷 / 17期
关键词：
SPIN-REORIENTATION TRANSITION; DYNAMIC LIGHT-SCATTERING; ULTRATHIN FILMS; PERPENDICULAR MAGNETIZATION; PHOTOELECTRON MICROSCOPY; CIRCULAR-DICHROISM; PHOTOEMISSION; CO/AU(111); MORPHOLOGY; BEAMLINE;
D O I：
10.1103/PhysRevB.83.172406
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a microscopic investigation of the temperature dependence of stripe domains in perpendicularly magnetized Ni films on Cu(001) using photoelectron emission microscopy in combination with x-ray magnetic circular dichroism (XMCD) in the resonant absorption of soft x rays. When the temperature approaches the Curie temperature of the system, the average width of the observed stripe domains is reduced along with the XMCD contrast. In addition, the domains become mobile. A quantitative analysis of the temperature-dependent motion of the domains yields an exponential behavior of the domain mobility with temperature, pointing toward thermally activated processes.
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页数：4
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