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Title: Influence of isotopic substitution on metal--insulator transitions in vanadium oxides

Abstract

A band theory of the metal--insulator phase transition is used to explain qualitatively the isotopic effect observed recently in VO/sub 2/, V/sub 3/O/sub 5/, and V/sub 2/O/sub 3/. The results suggest that there should be no isotopic shift of the Neel temperature and that a new phase (paramagnetic insulator) should appear in V/sub 2/O/sub 3/. A shift of the triple point is predicted for the phase diagram of VO/sub 2/ crystals doped with trivalent ions. The results also suggest the possibility of stabilization of metastable phases in pure VO/sub 2/ by isotopic substitution.

Authors:
Publication Date:
Research Org.:
L. V. Kirenski Institute of Physics, Siberian Branch of the Academy of Sciences of the USSR, Krasnoyarsk
OSTI Identifier:
5953907
Alternate Identifier(s):
OSTI ID: 5953907
Resource Type:
Journal Article
Journal Name:
Sov. Phys. - Solid State (Engl. Transl.); (United States)
Additional Journal Information:
Journal Volume: 21:2
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; VANADIUM OXIDES; NEEL TEMPERATURE; PHASE TRANSFORMATIONS; ISOTOPE EFFECTS; PHASE DIAGRAMS; CHALCOGENIDES; DIAGRAMS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; VANADIUM COMPOUNDS 360202* -- Ceramics, Cermets, & Refractories-- Structure & Phase Studies

Citation Formats

Ovchinnikov, S.G. Influence of isotopic substitution on metal--insulator transitions in vanadium oxides. United States: N. p., 1979. Web.
Ovchinnikov, S.G. Influence of isotopic substitution on metal--insulator transitions in vanadium oxides. United States.
Ovchinnikov, S.G. Thu . "Influence of isotopic substitution on metal--insulator transitions in vanadium oxides". United States.
@article{osti_5953907,
title = {Influence of isotopic substitution on metal--insulator transitions in vanadium oxides},
author = {Ovchinnikov, S.G.},
abstractNote = {A band theory of the metal--insulator phase transition is used to explain qualitatively the isotopic effect observed recently in VO/sub 2/, V/sub 3/O/sub 5/, and V/sub 2/O/sub 3/. The results suggest that there should be no isotopic shift of the Neel temperature and that a new phase (paramagnetic insulator) should appear in V/sub 2/O/sub 3/. A shift of the triple point is predicted for the phase diagram of VO/sub 2/ crystals doped with trivalent ions. The results also suggest the possibility of stabilization of metastable phases in pure VO/sub 2/ by isotopic substitution.},
doi = {},
journal = {Sov. Phys. - Solid State (Engl. Transl.); (United States)},
number = ,
volume = 21:2,
place = {United States},
year = {1979},
month = {2}
}