期刊
PHYSICAL REVIEW LETTERS
卷 84, 期 4, 页码 757-760出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.84.757
关键词
-
While low-temperature Hall resisitivity rho(xy) of La-2/3(Ca,Pb)(1/3)MnO3 single crystals can be separated into ordinary (OHE) and anomalous (AHE) contributions, no such decomposition is possible near the Curie temperature T-c. Rather, the rho(xy) data collapse to a single function of the reduced magnetization m = M/M-sat, with an extremum at approximate to 0.4m. A new mechanism for the AHE in the inelastic hopping regime is identified that reproduces the scaling curve. An extension of Holstein's model for the hopping OHE, the mechanism arises from the combined effects of the double-exchange-induced quantal phase in triads of Mn ions and spin-orbit interactions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据