| Spin-selective kondo insulator: cooperation of ferromagnetism and the kondo effect. | |
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MedLine Citation:
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PMID: 22463547 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We propose the notion of a spin-selective Kondo insulator, which provides a fundamental mechanism to describe the ferromagnetic phase of the Kondo lattice model with antiferromagnetic coupling. This unveils a remarkable feature of the ferromagnetic metallic phase: the majority-spin conduction electrons show metallic while the minority-spin electrons show insulating behavior. The resulting Kondo gap in the minority-spin sector, which is due to the cooperation of ferromagnetism and partial Kondo screening, evidences a dynamically induced commensurability for a combination of minority-spin electrons and parts of localized spins. Furthermore, this mechanism predicts a nontrivial relation between the macroscopic quantities such as electron magnetization, spin polarization, and electron filling. |
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Authors:
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Robert Peters; Norio Kawakami; Thomas Pruschke |
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Publication Detail:
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Type: Journal Article Date: 2012-02-22 |
Journal Detail:
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Title: Physical review letters Volume: 108 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-04-02 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 086402 Citation Subset: IM |
Affiliation:
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Department of Physics, Kyoto University, Kyoto 606-8502, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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