Berry phase effect in anomalous thermoelectric transport
| dc.creator | Xiao, Di | |
| dc.creator | Yao, Yugui | |
| dc.creator | Fang, Zhong | |
| dc.creator | Niu, Qian | |
| dc.date | 2006-04-24 | |
| dc.date | 2006-07-14 | |
| dc.date.accessioned | 2026-07-07T07:05:43Z | |
| dc.date.available | 2026-07-07T07:05:43Z | |
| dc.description | We develop a theory of Berry phase effect in anomalous transport in ferromagnets driven by statistical forces such as the gradient of temperature or chemical potential. Here a charge Hall current arises from the Berry phase correction to the orbital magnetization rather than from the anomalous velocity which does not exist in the absence of a mechanical force. A finite-temperature formula for the orbital magnetization is derived, which enables us to provide an explicit expression for the off-diagonal thermoelectric conductivity, to establish the Mott relation between the anomalous Nernst and Hall effects, and to reaffirm the Onsager relations between reciprocal thermoelectric conductivities. A first-principles evaluation of our expression is carried out for the material CuCr$_2$Se$_{4-x}$Br$_x$, obtaining quantitative agreement with a recent experiment. | |
| dc.description | Published version in PRL | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0604561 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0604561 | |
| dc.identifier | Phys. Rev. Lett. 97, 026603 (2006) | |
| dc.identifier | doi:10.1103/PhysRevLett.97.026603 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/109762 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Berry phase effect in anomalous thermoelectric transport | |
| dc.type | text |