Anomalous Hall effect in the Co-based Heusler compounds Co2FeSi and Co2FeAl

被引:35
作者
Imort, I. -M. [1 ]
Thomas, P. [1 ]
Reiss, G. [1 ]
Thomas, A. [1 ]
机构
[1] Univ Bielefeld, D-33615 Bielefeld, Nordrhein Westf, Germany
关键词
FILMS;
D O I
10.1063/1.3678323
中图分类号
O59 [应用物理学];
学科分类号
摘要
The anomalous Hall effect (AHE) in the Heusler compounds Co2FeSi and Co2FeAl is studied in dependence of the annealing temperature to achieve a general comprehension of its origin. We have demonstrated that the crystal quality affected by annealing processes is a significant control parameter to tune the electrical resistivity rho(xx) as well as the anomalous Hall resistivity rho(ahe). Analyzing the scaling behavior of rho(ahe) in terms of rho(xx) points to a temperature-dependent skew scattering as the dominant mechanism in both Heusler compounds. (C) 2012 American Institute of Physics. [doi:10.1063/1.3678323]
引用
收藏
页数:3
相关论文
共 17 条
[1]   Rational design of new materials for spintronics:: Co2FeZ (Z = Al, Ga, Si, Ge) [J].
Balke, Benjamin ;
Wurmehl, Sabine ;
Fecher, Gerhard H. ;
Felser, Claudia ;
Kuebler, Juergen .
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2008, 9 (01)
[2]   Side-jump mechanism for the Hall effect of ferromagnets [J].
Berger, L. .
PHYSICAL REVIEW B-SOLID STATE, 1970, 2 (11) :4559-4566
[3]  
Berry MV, 1984, P R SOC LONDON A, V392
[4]   Tunneling spectroscopy and magnon excitation in Co2FeAl/MgO/Co-Fe magnetic tunnel junctions [J].
Ebke, Daniel ;
Drewello, Volker ;
Schaefers, Markus ;
Reiss, Guenter ;
Thomas, Andy .
APPLIED PHYSICS LETTERS, 2009, 95 (23)
[5]   Structural, magnetic and magnetotransport properties of thin films of the Heusler alloys Cu2MnAl, Co2MnSi, Co2MnGe and Co2MnSn [J].
Geiersbach, U ;
Bergmann, A ;
Westerholt, K .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 240 (1-3) :546-549
[6]   Correlation between the extraordinary Hall effect and resistivity -: art. no. 224403 [J].
Gerber, A ;
Milner, A ;
Finkler, A ;
Karpovski, M ;
Goldsmith, L ;
Tuaillon-Combes, J ;
Boisron, O ;
Mélinon, P ;
Perez, A .
PHYSICAL REVIEW B, 2004, 69 (22) :224403-1
[7]   Extraordinary Hall effect in magnetic films [J].
Gerber, A ;
Milner, A ;
Karpovsky, M ;
Lemke, B ;
Habermeier, HU ;
Tuaillon-Combes, J ;
Négrier, M ;
Boisron, O ;
Mélinon, P ;
Perez, A .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 :90-97
[8]  
Hall E. H., 1880, THESIS J HOPKINS U
[9]  
Hall E. H., 1879, Am. J. Math, V2, P287, DOI [DOI 10.2307/2369245, 10.2307/2369245]
[10]   Thin epitaxial films of the Heusler compound Co2Cr0.6Fe0.4Al [J].
Jakob, G ;
Casper, F ;
Beaumont, V ;
Falk, S ;
Auth, N ;
Elmers, HJ ;
Felser, C ;
Adrian, H .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 290 :1104-1107