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Title: Spin Seebeck power generators

We derive expressions for the efficiency and figure of merit of two spin caloritronic devices based on the spin Seebeck effect (SSE), i.e., the generation of spin currents by a temperature gradient. The inverse spin Hall effect is conventionally used to detect the SSE and offers advantages for large area applications. We also propose a device that converts spin current into electric one by means of a spin-valve detector, which scales favorably to small sizes and approaches a figure of merit of 0.5 at room temperature.
Authors:
;  [1] ;  [2] ;  [3]
  1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  2. Institute for Materials Research and WPI-AIMR, Tohoku University, Sendai 980-8577 (Japan)
  3. (Netherlands)
Publication Date:
OSTI Identifier:
22280561
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; EFFICIENCY; ELECTRIC CURRENTS; HALL EFFECT; PERFORMANCE; SEEBECK EFFECT; SPIN; TEMPERATURE GRADIENTS; TEMPERATURE RANGE 0273-0400 K