TY - JOUR
T1 - Lorenz number determination of the dissipationless nature of the anomalous hall effect in itinerant ferromagnets
AU - Onose, Y.
AU - Shiomi, Y.
AU - Tokura, Y.
PY - 2008/1/4
Y1 - 2008/1/4
N2 - We have measured the thermal Hall conductivity for ferromagnetic Ni and Ni0.97Cu0.03. In the low temprature region (100K), we show for the first time that the Wiedemann-Franz law is satisfied even for the anomalous Hall current. While the Hall Lorenz number for the normal part decreases rapidly with temperature, that for the anomalous part shows much less deviation from the free-electron Lorenz number. This evidences the dissipationless nature of the anomalous Hall effect.
AB - We have measured the thermal Hall conductivity for ferromagnetic Ni and Ni0.97Cu0.03. In the low temprature region (100K), we show for the first time that the Wiedemann-Franz law is satisfied even for the anomalous Hall current. While the Hall Lorenz number for the normal part decreases rapidly with temperature, that for the anomalous part shows much less deviation from the free-electron Lorenz number. This evidences the dissipationless nature of the anomalous Hall effect.
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U2 - 10.1103/PhysRevLett.100.016601
DO - 10.1103/PhysRevLett.100.016601
M3 - Article
AN - SCOPUS:40749151076
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 1
M1 - 016601
ER -