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Title: Low-temperature heat capacity of triangle antiferromagnetic molecular clusters K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O and K{sub 12}[(VO){sub 3}(BiW{sub 9}O{sub 33}){sub 2}].29H{sub 2}O

Abstract

Energy level diagrams have been determined for two molecular clusters, K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O and K{sub 12}[(VO){sub 3}(BiW{sub 9}O{sub 33}){sub 2}].29H{sub 2}O, by low-temperature heat capacity measurements down to 85 mK under magnetic field strengths up to 9 T. Both compounds exhibit a broad heat capacity peak dependent upon the magnetic field, which can be explained by the thermal excitation in the magnetic energy levels. A detailed analysis based on the numerical calculation reveals that the spin-spin interaction between the V{sup 4+} ions includes a Dzyaloshinskii-Moriya interaction. - Graphical abstract: Temperature dependence of heat capacity for K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O below 5 K. This is well described by the model with a doublet ground state.

Authors:
 [1]; ;  [1]; ;  [2]
  1. Materials and Structures Laboratory, Tokyo Institute of Technology, R3-7, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503 (Japan)
  2. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-21, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503 (Japan)
Publication Date:
OSTI Identifier:
21370437
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 182; Journal Issue: 6; Other Information: DOI: 10.1016/j.jssc.2009.03.018; PII: S0022-4596(09)00128-5; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTIFERROMAGNETISM; BISMUTH COMPOUNDS; DIAGRAMS; J-J COUPLING; MAGNETIC FIELDS; MAGNETS; MOLECULAR CLUSTERS; POTASSIUM VANADATES; SPECIFIC HEAT; TEMPERATURE RANGE 0000-0013 K; TUNGSTEN COMPOUNDS; VANADIUM IONS; ALKALI METAL COMPOUNDS; CHARGED PARTICLES; COUPLING; EQUIPMENT; INFORMATION; INTERMEDIATE COUPLING; IONS; MAGNETISM; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POTASSIUM COMPOUNDS; REFRACTORY METAL COMPOUNDS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; VANADATES; VANADIUM COMPOUNDS

Citation Formats

Kohama, Yoshimitsu, Kawaji, Hitoshi, Atake, Tooru, Fukaya, Keisuke, and Yamase, Toshihiro. Low-temperature heat capacity of triangle antiferromagnetic molecular clusters K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O and K{sub 12}[(VO){sub 3}(BiW{sub 9}O{sub 33}){sub 2}].29H{sub 2}O. United States: N. p., 2009. Web. doi:10.1016/j.jssc.2009.03.018.
Kohama, Yoshimitsu, Kawaji, Hitoshi, Atake, Tooru, Fukaya, Keisuke, & Yamase, Toshihiro. Low-temperature heat capacity of triangle antiferromagnetic molecular clusters K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O and K{sub 12}[(VO){sub 3}(BiW{sub 9}O{sub 33}){sub 2}].29H{sub 2}O. United States. https://doi.org/10.1016/j.jssc.2009.03.018
Kohama, Yoshimitsu, Kawaji, Hitoshi, Atake, Tooru, Fukaya, Keisuke, and Yamase, Toshihiro. 2009. "Low-temperature heat capacity of triangle antiferromagnetic molecular clusters K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O and K{sub 12}[(VO){sub 3}(BiW{sub 9}O{sub 33}){sub 2}].29H{sub 2}O". United States. https://doi.org/10.1016/j.jssc.2009.03.018.
@article{osti_21370437,
title = {Low-temperature heat capacity of triangle antiferromagnetic molecular clusters K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O and K{sub 12}[(VO){sub 3}(BiW{sub 9}O{sub 33}){sub 2}].29H{sub 2}O},
author = {Kohama, Yoshimitsu and Kawaji, Hitoshi and Atake, Tooru and Fukaya, Keisuke and Yamase, Toshihiro},
abstractNote = {Energy level diagrams have been determined for two molecular clusters, K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O and K{sub 12}[(VO){sub 3}(BiW{sub 9}O{sub 33}){sub 2}].29H{sub 2}O, by low-temperature heat capacity measurements down to 85 mK under magnetic field strengths up to 9 T. Both compounds exhibit a broad heat capacity peak dependent upon the magnetic field, which can be explained by the thermal excitation in the magnetic energy levels. A detailed analysis based on the numerical calculation reveals that the spin-spin interaction between the V{sup 4+} ions includes a Dzyaloshinskii-Moriya interaction. - Graphical abstract: Temperature dependence of heat capacity for K{sub 12}[(VO){sub 3}(SbW{sub 9}O{sub 33}){sub 2}].15H{sub 2}O below 5 K. This is well described by the model with a doublet ground state.},
doi = {10.1016/j.jssc.2009.03.018},
url = {https://www.osti.gov/biblio/21370437}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 6,
volume = 182,
place = {United States},
year = {Mon Jun 15 00:00:00 EDT 2009},
month = {Mon Jun 15 00:00:00 EDT 2009}
}