Spatial distribution of phases during gradual magnetostructural transitions in copper(II)-nitroxide based molecular magnets

Spatial distribution of phases during gradual magnetostructural transitions in copper(II)-nitroxide based molecular magnets Full article

Journal

Dalton Transactions
ISSN: 1477-9226 , E-ISSN: 1477-9234

Output data

Year: 2015, Volume: 44, Number: 43, Pages: 18823-18830 Pages count : DOI: 10.1039/c5dt03441h

Authors

Fedin Matvey V. ^1,2 , Veber Sergey L. ^1,2 , Bagryanskaya Elena G. ^2,3 , Romanenko Galina V. ¹ , Ovcharenko Victor I. ¹

Affiliations

1	(Данные Web of science) Int Tomog Ctr SB RAS, Novosibirsk 630090, Russia
2	(Данные Web of science) Novosibirsk State Univ, Novosibirsk 630090, Russia
3	(Данные Web of science) NN Vorozhtsov Novosibirsk Inst Organ Chem SB RAS, Novosibirsk 630090, Russia

Copper(II)-nitroxide based molecular magnets Cu(hfac)(2)L-R exhibit thermally-induced transitions between high-and low-temperature (HT/LT) magnetostructural states. In this work we report the first study on the spatial distribution of HT/LT phases during gradual transitions in these compounds. We explore the possibility of domain formation at intermediate temperatures, which has never been addressed before. For this purpose, we reexamine the available electron paramagnetic resonance (EPR) and X-ray diffraction data, and perform numerical calculations of EPR spectra for different models of exchange-coupled networks. A thorough analysis shows that during gradual transitions, molecular magnets Cu(hfac)(2)L-R represent solid solutions of disordered HT and LT phases, and the formation of single-phase domains larger than a few nanometers in size is unlikely.

Fedin M.V. , Veber S.L. , Bagryanskaya E.G. , Romanenko G.V. , Ovcharenko V.I.
Spatial distribution of phases during gradual magnetostructural transitions in copper(II)-nitroxide based molecular magnets
Dalton Transactions. 2015. V.44. N43. P.18823-18830. DOI: 10.1039/c5dt03441h WOS Scopus РИНЦ

Web of science	WOS:000364169500016
Scopus	2-s2.0-84946140550
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