2004/04/21 by S. A. Baily, Supriya Baily, M. B. Salamon
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Magnetic properties of thin films #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.71.104407
6 pages, 7 figures, submitted to Phys. Rev. B
arxiv created 2004/04/21 · openalex publication_date 2005/03/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
When conduction electrons are forced to follow the local spin texture, the resulting Berry phase can induce an anomalous Hall effect (AHE). In gadolinium, as in double-exchange magnets, the exchange interaction is mediated by the conduction electrons and the AHE may therefore resemble that of CrO2 and other metallic double-exchange ferromagnets. The Hall resistivity, magnetoresistance, and magnetization of single crystal gadolinium were measured in fields up to 30\phantom\rule0.3em0exT. Measurements between 2\phantom\rule0.3em0exK and 400\phantom\rule0.3em0exK are consistent with previously reported data. A scaling analysis for the Hall resistivity as a function of the magnetization suggests the presence of a Berry-phase contribution to the anomalous Hall effect.