Relation between anomalous Hall effect and the Dzaloshisky–Moriya anisotropy in the series of alloys

Autor:	Y. Morimoto, Teruo Yamazaki, Yoshikazu Tabata, K. Yamanaka, N. Ashitaka, Shuzo Kawarazaki, T. Taniguchi
Rok vydání:	2007
Předmět:	Magnetization Materials science Spin glass Condensed matter physics Impurity Hall effect Electrical resistivity and conductivity Transition temperature Doping Condensed Matter Physics Anisotropy Electronic Optical and Magnetic Materials
Zdroj:	Journal of Magnetism and Magnetic Materials. 310:1523-1525
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2006.10.665
Popis:	The influence of the Dzyaloshinsky–Moriya (DM) anisotropy on R s ≡ ρ ex / M , where ρ ex is the extraordinary Hall resistivity and M is the magnetization, is investigated in canonical spin glass (SG) alloys. The strength of the DM anisotropy in the alloys is changed systematically by doping the third non-magnetic impurities. The Hall resistivity ρ H , the magnetization M and the resistivity ρ were measured in the series of ( Ag 1 - x Au x ) 0.9 Mn 0.1 alloys with x = 0 , 0.007, 0.03, and 0.05. The difference between the values of zero field cooled and field cooled R s , below the SG transition temperature, clearly increased with the amount of Au impurities. The dependence of the chirality contribution to R s on the DM anisotropy is discussed in relation to the theoretical work for the chirality-driven anomalous Hall effect in weak coupling regime.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cc840019b55bc4a328de105772d1c875 https://doi.org/10.1016/j.jmmm.2006.10.665 Zobrazit plný text záznamu Full Text from ScienceDirect