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Title: Temperature Dependence of Thermopower in Strongly Correlated Multiorbital Systems

Temperature dependence of thermopower in the multiorbital Hubbard model is studied by using the dynamical mean-field theory with the non-crossing approximation impurity solver. It is found that the Coulomb interaction, the Hund coupling, and the crystal filed splitting bring about nonmonotonic temperature dependence of the hermopower, including its sign reversal. The implication of our theoretical results to some materials is discussed.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [1]
  1. Japan Atomic Energy Agency (JAEA)
  2. ORNL
  3. RIKEN, Japan
Publication Date:
OSTI Identifier:
1134640
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: The International Conference on Strongly Correlated Electron Systems, Tokyo, Japan, 20130805, 20130809
Research Org:
Oak Ridge National Laboratory (ORNL)
Sponsoring Org:
SC USDOE - Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
Strongly correlated electron systems; thermoelectrics