Published October 15, 2009
| Version v1
Journal article
Verwey transition in magnetite at high pressure: A new quantum critical point at the onset of metallization
Creators
- 1. Department of Solid State Physics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow (Poland)
- 2. Marian Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow (Poland)
- 3. Department of Physics, Okayama University, Okayama 700-8530 (Japan)
- 4. Institute of Physics, University of Technology, Podchorazych 1, 30-084 Krakow (Poland)
- 5. Quantum Matter Group, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom)
- 6. Department of Chemistry, Purdue University, West Lafayette, IN 47907 (United States)
Description
We provide a detailed physical discussion of the existence of a quantum critical point (QCP) at the metallization threshold of an almost stoichiometric magnetite, with the critical pressure pc=8GPa. A presence of an additional crossover or a critical line separating metallic and semiconducting states is proposed. A connection of the critical behavior to that of a spinless-fermion model with coupling of fermions to the lattice distortion is outlined.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physb.2009.07.079Additional details
Identifiers
- DOI
- 10.1016/j.physb.2009.07.079;
- PII
- S0921-4526(09)00499-2;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 404
- Journal Issue
- 19
- Journal Page Range
- p. 2894-2897
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- International conference on strongly correlated electron systems
- Acronym
- SCES 2008
- Dates
- 17-22 Aug 2008
- Place
- Buzios (Brazil)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41074699
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COUPLING; CRITICAL PRESSURE; FERMIONS; MAGNETITE; METALS; PRESSURE RANGE GIGA PA; SEMICONDUCTOR MATERIALS; STOICHIOMETRY
- Descriptors DEC
- ELEMENTS; IRON ORES; MATERIALS; MINERALS; ORES; OXIDE MINERALS; PHYSICAL PROPERTIES; PRESSURE RANGE; THERMODYNAMIC PROPERTIES
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.