Observation of the spin-crossover in Fe(btr)(2)(NCS)(2) center dot H2O (btr=4,4 '-bis-1,2,4-triazole) with mu SR

Roubeau, O., Gubbens, P. C. M., Visser, D., Blaauw, M., de Reotier, P. D., Yaouanc, A., Haasnoot, J. G., Reedijk, J., Sakarya, S., Jayasooriya, U. A., Cottrell, S. P. and King, P. J. C. (2004) Observation of the spin-crossover in Fe(btr)(2)(NCS)(2) center dot H2O (btr=4,4 '-bis-1,2,4-triazole) with mu SR. Chemical Physics Letters, 395 (4-6). pp. 177-181.

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Abstract

The electronic spin transition in [Fe(btr)(2)(NCS)(2)] . H2O (btr = 4,4'-bis-1,2,4-triazole) is probed by longitudinal field muon spin relaxation measurements. The muSR spectra could be analyzed with two different components, corresponding to two muon sites. For both components, an increase in magnetic fluctuations is observed at the LS --> HS transition, i.e. crossing the spin transition temperature coming from low temperature, if a sufficiently high field is applied. Even below the transition temperature, magnetic fluctuations are still found. For one of the two union sites, muonium formation is clearly found below the spin-crossover temperature. (C) 2004 Elsevier B.V. All rights reserved.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Rachel Smith
Date Deposited: 09 May 2011 12:41
Last Modified: 21 Apr 2020 20:23
URI: https://ueaeprints.uea.ac.uk/id/eprint/29798
DOI: 10.1016/j.cplett.2004.07.016

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