Vojta, Matthias ORCID: 0000-0002-5740-831X
(2010).
Orbital-Selective Mott Transitions: Heavy Fermions and Beyond.
J. Low Temp. Phys., 161 (1-2).
S. 203 - 233.
NEW YORK:
SPRINGER/PLENUM PUBLISHERS.
ISSN 1573-7357
Abstract
Quantum phase transitions in metals are often accompanied by violations of Fermi liquid behavior in the quantum critical regime. Particularly fascinating are transitions beyond the Landau-Ginzburg-Wilson concept of a local order parameter. The breakdown of the Kondo effect in heavy-fermion metals constitutes a prime example of such a transition. Here, the strongly correlated f electrons become localized and disappear from the Fermi surface, implying that the transition is equivalent to an orbital-selective Mott transition, as has been discussed for multi-band transition-metal oxides. In this article, available theoretical descriptions for orbital-selective Mott transitions will be reviewed, with an emphasis on conceptual aspects like the distinction between different low-temperature phases and the structure of the global phase diagram. Selected results for quantum critical properties will be listed as well. Finally, a brief overview is given on experiments which have been interpreted in terms of orbital-selective Mott physics.
Item Type: | Journal Article | ||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-495796 | ||||||||
DOI: | 10.1007/s10909-010-0206-3 | ||||||||
Journal or Publication Title: | J. Low Temp. Phys. | ||||||||
Volume: | 161 | ||||||||
Number: | 1-2 | ||||||||
Page Range: | S. 203 - 233 | ||||||||
Date: | 2010 | ||||||||
Publisher: | SPRINGER/PLENUM PUBLISHERS | ||||||||
Place of Publication: | NEW YORK | ||||||||
ISSN: | 1573-7357 | ||||||||
Language: | English | ||||||||
Faculty: | Unspecified | ||||||||
Divisions: | Unspecified | ||||||||
Subjects: | no entry | ||||||||
Uncontrolled Keywords: |
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URI: | http://kups.ub.uni-koeln.de/id/eprint/49579 |
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