Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/1746
Título: Coexistence of Universal and Topological Anomalous Hall Effects in Metal CrO2 Thin Films in the Dirty Limit
Autor: Branford, W. R.
Yates, Karen A.
Barkhoudarov, E.
Moore, J. D.
Morrison, K.
Magnus, F.
Miyoshi, Y.
Sousa, P. M.
Conde, O.
Silvestre, A. J.
Cohen, L. F.
Palavras-chave: Transport-properties
Chromium dioxide
Temperature
Magnetotransport
Polarization
Data: 5-Jun-2009
Editora: Amer Physical Soc
Relatório da Série N.º: 227201
Resumo: The scaling exponent of 1.6 between anomalous Hall and longitudinal conductivity, characteristic of the universal Hall mechanism in dirty-metal ferromagnets, emerges from a series of CrO2 films as we systematically increase structural disorder. Magnetic disorder in CrO2 increases with temperature and this drives a separate topological Hall mechanism. We find that these terms are controlled discretely by structural and magnetic defect populations, and their coexistence leads to apparent divergence from exponent 1.6, suggesting that the universal term is more prevalent than previously realized.
Peer review: yes
URI: http://hdl.handle.net/10400.21/1746
ISSN: 0031-9007
Aparece nas colecções:ISEL - Física - Artigos

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