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Detailed investigation of the phase transition inKxP4W8O32and experimental arguments for a charge density wave due to hidden nesting
Abstract
Detailed structural and magnetotransport properties of monophosphate tungsten bronze Kx(PO2)4(WO3)8 single crystals are reported. Both galvanomagnetic and thermal properties are shown to be consistent with a charge density wave electronic transition due to hidden nesting of the quasi-1D portion of the Fermi surface. We also observe the enhancement of electronic anisotropy due to reconstruction of the Fermi surface at the Peierls transition. The resistivity presents a thermal hysteresis suggesting a first-order nature characteristic of a strong-coupling scenario. However, other measurements such as the change of carrier density demonstrate a second-order Peierls scenario with weak-coupling features. We suggest that the structural transition driven by the residual strain in the K-P-O environment is responsible for the resistivity hysteresis and modifies the Fermi surface which then helps the rise to the second-order Peierls instability.
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Authors (5)
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Olivier Pérez
- Laboratoire CRISMAT -
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Sylvie Hébert
- Laboratoire CRISMAT -
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Pierre Fertey
- oci ́ et ́ e civile Synchrotron SOLE -
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Alain Pautrat
- Laboratoire CRISMAT -
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/PhysRevB.93.235126
- License
- Copyright (2016 American Physical Society)
Keywords
Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
PHYSICAL REVIEW B
no. 93,
pages 1 - 10,
ISSN: 2469-9950 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Kolincio K., Pérez O., Hébert S., Fertey P., Pautrat A.: Detailed investigation of the phase transition inKxP4W8O32and experimental arguments for a charge density wave due to hidden nesting// PHYSICAL REVIEW B. -Vol. 93, (2016), s.1-10
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/physrevb.93.235126
- Verified by:
- Gdańsk University of Technology
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