Field dependence of the spin Peierls transition in ??-(BEDT-TTF)2Ag(CN)2

Kurmoo, M. and Green, M.A. and Day, P. and Bellitto, C. and Staulo, G. and Pratt, F.L. and Hayes, W. (1993) Field dependence of the spin Peierls transition in ??-(BEDT-TTF)2Ag(CN)2. Synthetic Metals, 56 (1). pp. 2380-2385. ISSN 0379-6779. (doi:https://doi.org/10.1016/0379-6779(93)90427-X) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/0379-6779(93)90427-X

Abstract

The spin Peierls transition in ??-(BEDT-TTF)2Ag(CN)2 has been studied as a function of magnetic field up to 5 Tesla. The data at temperatures above 20K are found to be best fitted to the Bonner-Fisher model for a linear chain antiferromagnet with J/kB59K. Below 6K the susceptibility is fitted with a Bulaevskii model for a temperature dependent dimerising chain with ?=0.75 at 500G increasing to 0.80 at 30000G. The electron-phonon coupling parameter ? is 0.27, the BCS gap ?(0)=13.8K is higher than the theoretical value (10.2K) and the effective phonon frequency 7.5 cm-1

Item Type: Article
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Synth Met [Field not mapped to EPrints] AD - The Royal Institution of Great Britain, 21 Albemarle Street, London, W1X 4BS, United Kingdom [Field not mapped to EPrints] AD - ITSE-CNR, Via Salaria, Km 29,500, CP10-00016, Monterotondo Stazione, Roma Italy [Field not mapped to EPrints] AD - Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Antiferromagnetism, Conductive materials, Electrons, Energy gap, Magnetic field effects, Magnetic properties, Mathematical models, Organometallics, Phonons, Salts, Silver compounds, Thermal effects, Bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) salts, Bonner Fisher model, Bulaevskii model, Dimerization, Electron phonon coupling, Organic conductors, Spin Peierls transition, Unsaturated compounds
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 21 Oct 2015 11:25 UTC
Last Modified: 26 Oct 2015 16:38 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/51175 (The current URI for this page, for reference purposes)
  • Depositors only (login required):