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Title: Spin caloritronics in graphene with Mn

We show that graphene with Mn adatoms trapped at single vacancies features spin-dependent Seebeck effect, thus enabling the use of this material for spin caloritronics. A gate potential can be used to tune its thermoelectric properties in a way it presents either a total spin polarized current, flowing in one given direction, or currents for both spins flowing in opposite directions without net charge transport. Moreover, we show that the thermal magnetoresistance can be tuned between −100% and +100% by varying a gate potential.
Authors:
; ;  [1] ;  [1] ;  [2]
  1. Instituto de Física de Universidade de São Paulo, CP 66318, 05315-970 São Paulo, SP (Brazil)
  2. (Brazil)
Publication Date:
OSTI Identifier:
22283101
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 7; 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; CHARGE TRANSPORT; ELECTRIC CURRENTS; GRAPHENE; MAGNETORESISTANCE; POTENTIALS; SEEBECK EFFECT; SPIN; SPIN ORIENTATION; THERMOELECTRIC PROPERTIES; VACANCIES