Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-9864
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Main Title: Physical properties and lattice dynamics of bixbyite-type V2O3
Author(s): Weber, Dominik A.
Schwickert, Christian
Senyshyn, Anatoliy
Lerch, Martin
Pöttgen, Rainer
Type: Article
Language Code: en
Abstract: Some time ago, we reported the synthesis of bixbyite-type V2O3, a new metastable polymorph of vanadium sesquioxide. Since, a number of investigations followed, dealing with different aspects like electronic and magnetic properties of the material, the deviation from ideal stoichiometry or the preparation of nanocrystals as oxygen storage material. However, most of the physical properties were only evaluated on a theoretical basis. Here, we report the lattice dynamics and physical properties of bixbyite-type V2O3 bulk material, which we acquired from physical property measurements and neutron diffraction experiments over a wide temperature range. Besides attributing different possible orientations of the magnetic moments for V1 and V2 to the identified antiferromagnetic (AFM) ground state with a Néel temperature of 38.1(5) K, we use a first order Grüneisen approximation to determine lattice-dependent parameters for the relatively stiff cubic lattice, and, amongst others identify the Debye temperature to be as low as 350 ± 65 K.
URI: https://depositonce.tu-berlin.de/handle/11303/10974
http://dx.doi.org/10.14279/depositonce-9864
Issue Date: 28-Jun-2017
Date Available: 6-Apr-2020
DDC Class: 546 Anorganische Chemie
Subject(s): neutron scattering
magnetic properties
Debye temperature
Sponsor/Funder: DFG, 73789094, SPP 1415: Kristalline Nichtgleichgewichtsphasen - Präparation, Charakterisierung und in situ-Untersuchung der Bildungsmechanismen
License: http://rightsstatements.org/vocab/InC/1.0/
Journal Title: Journal of Materials Research
Publisher: Cambridge University Press
Publisher Place: Cambridge [u.a.]
Volume: 32
Issue: 12
Publisher DOI: 10.1557/jmr.2017.144
Page Start: 2397
Page End: 2404
EISSN: 2044-5326
ISSN: 0884-2914
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Anorganische Chemie - Festkörper- und Materialchemie » Publications

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