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Dynamic signature of orbital selective Mott transition in the metallic phase of VO2
- Source :
- New Journal of Physics, Vol 20, Iss 7, p 073026 (2018)
- Publication Year :
- 2018
- Publisher :
- IOP Publishing, 2018.
-
Abstract
- An orbital-selective technique, nuclear magnetic resonance (NMR) spectroscopy, which could simultaneously probe the atomic structure and electronic properties, was employed to address the ‘bad metal’ behaviors, i.e., negligible electron thermal conductivity in the metallic phase of VO _2 . The measured electric field gradients at V sites by ^51 V NMR were found to evolve significantly in the pure metallic phase within the vicinity of structural phase transition temperatures, unexpected in a simple metal within this temperature region according to structural analysis by diffraction. This abnormal temperature-dependent local symmetry evolution can be well explained by a simple phenomenological model of orbital selective Mott transition in this multiorbital system.
- Subjects :
- thermal conductivity
vanadium dioxides
NMR
Science
Physics
QC1-999
Subjects
Details
- Language :
- English
- ISSN :
- 13672630
- Volume :
- 20
- Issue :
- 7
- Database :
- Directory of Open Access Journals
- Journal :
- New Journal of Physics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.6e694f7316ad4dbe8750a72bf9077287
- Document Type :
- article
- Full Text :
- https://doi.org/10.1088/1367-2630/aad128