http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Linear-Response Theory of the Longitudinal Spin Seebeck Effect
Hiroto Adachi,Sadamichi Maekawa 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
We theoretically investigate the longitudinal spin Seebeck effect, in which the spin current isinjected from a ferromagnet into an attached nonmagnetic metal in a direction parallel to thetemperature gradient. Using the fact that the phonon heat current flows intensely into the attachednonmagnetic metal in this particular configuration, we show that the sign of the spin injection signalin the longitudinal spin Seebeck effect can be opposite to that in the conventional transverse spinSeebeck effect when the electron-phonon interaction in the nonmagnetic metal is sufficiently large. Our linear-response approach can explain the sign reversal of the spin injection signal recentlyobserved in the longitudinal spin Seebeck effect.
Sadamichi Maekawa,Hiroto Adachi 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
The thermopower, the so-called Seebeck effect, is the conversion of heat to electricity and is dueto the entropy carried by conduction electrons. In strongly-correlated electron systems and Kondomaterials, spin fluctuation is shown to bring about an entropy in conduction electrons and to resultin a giant thermopower. Recently, the spin Seebeck effect, which reflects the conversion via thespin current in magnetic materials, was discovered. The mechanism is examined and a variety ofexperiments are explained.