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Volumn 97, Issue 17, 2010, Pages

Observation of longitudinal spin-Seebeck effect in magnetic insulators

Author keywords

[No Author keywords available]

Indexed keywords

FERRIMAGNETIC INSULATORS; FERROMAGNETS; GEOMETRIC CONFIGURATIONS; MAGNETIC INSULATOR; PT FILMS; SPIN CURRENTS; SPIN HALL EFFECT; TEMPERATURE GRADIENT; VERSATILE SYSTEM;

EID: 78149426248     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3507386     Document Type: Article
Times cited : (813)

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    • This condition Hm- He-follows from a simple relation Jex (∼0.05 eV) tband (∼1 eV) with the exchange integral Jex and the bandwidth tband, since Hm-∼ (Jex /a) δu and He-∼ (tband /a) δu with a and δu being the lattice constant and the difference of the lattice displacement between the neighboring sites
    • This condition Hm-p He-p follows from a simple relation Jex (∼0.05 eV) tband (∼1 eV) with the exchange integral Jex and the bandwidth tband, since Hm-p ∼ (Jex /a) δu and He-p ∼ (tband /a) δu with a and δu being the lattice constant and the difference of the lattice displacement between the neighboring sites.
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    • The spatial distributions of the effective magnon and phonon temperatures, Tm and Tp, in the YIG layer in the present longitudinal setuare same as those in the conventional setu(Ref.). In the longitudinal setup, although the actual (observable) temperature in the Pt layer is lower than that in the YIG slab, Te in Pt may be modulated by a heat current flowing into the Pt layer due to the strong electron-phonon interaction.
    • The spatial distributions of the effective magnon and phonon temperatures, Tm and Tp, in the YIG layer in the present longitudinal setup are same as those in the conventional setup (Ref.). In the longitudinal setup, although the actual (observable) temperature in the Pt layer is lower than that in the YIG slab, Te in Pt may be modulated by a heat current flowing into the Pt layer due to the strong electron-phonon interaction.


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