Gigantic enhancement of spin Seebeck effect by phonon drag

Applied Physics Letters

Volumn 97, Issue 25, 2010, Pages

  Adachi, Hiroto ^a,b   Uchida, Ken Ichi ^c   Saitoh, Eiji ^a,b,c   Ohe, Jun Ichiro ^a,b   Takahashi, Saburo ^a,b,c   Maekawa, Sadamichi ^a,b  

^a JAPAN ATOMIC ENERGY AGENCY   (Japan)

^b JAPAN SCIENCE AND TECHNOLOGY AGENCY   (Japan)

^c TOHOKU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

LOW TEMPERATURES; LOW-LYING SPIN EXCITATIONS; NONEQUILIBRIUM PHONONS; PHONON DRAG; SPIN CURRENTS; SUBSTRATE CONDITIONS;

DRAG; PHONONS;

SEEBECK EFFECT;

EID: 78650727382     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3529944     Document Type: Article

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26. D, while the second term captures the high- T behavior (Ref.) τph ∼1/T.
27. Note that theoretically the signal due to the phonon-dragged SSE has a close-to-linear spatial dependence [see Fig.] as is observed in experiments (Refs.), the reason of which is obvious from Fig.. In addition, the length scale associated with the phonon-dragged SSE is set by that related to the energy conservation, such that it can be as long as several millimeters.