Spin crossover in the Prussian blue analogue FePt(CN)6 induced by pressure or X-ray irradiation

Hanna L. B. Boström; Andrew B. Cairns; Lei Liu; Peter Lazor; Ines E. Collings

doi:10.1039/D0DT02036B

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Spin crossover in the Prussian blue analogue FePt(CN)₆ induced by pressure or X-ray irradiation†

Hanna L. B. Boström,

*^a Andrew B. Cairns,

^b Lei Liu,

^c Peter Lazor^c and Ines E. Collings

*^d

Author affiliations

* Corresponding authors

^a Department of Chemistry—Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala, Sweden
E-mail: hanna.bostrom@kemi.uu.se

^b Department of Materials, Imperial College London, Royal School of Mines, Exhibition Road, UK

^c Department of Earth Sciences, Uppsala Universitet, Villavägen 16, Uppsala, Sweden

^d Centre of X-ray Analytics, Empa – Swiss Federal Laboratories for Materials Science and Technology, Überlandstraße 129, 8600 Dübendorf, Switzerland
E-mail: ines.collings@empa.ch

Abstract

The spin state of the Prussian blue analogue Fe^IIPt^IV(CN)₆ is investigated in response to temperature, pressure, and X-ray irradiation. While cooling to 10 K maintains the high-spin state of Fe^II, compression at ambient temperature induces a first-order spin-crossover (SCO) transition with a small hysteresis loop (p↑ = 0.8 GPa, p↓ = 0.6 GPa). In addition, the high-spin to low-spin transition can be initiated at lower pressure through increased X-ray irradiation. Our study highlights a cooperative SCO with moderate pressure in a porous Prussian blue analogue.

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Article information

DOI: https://doi.org/10.1039/D0DT02036B
Article type: Communication
Submitted: 07 Jun 2020
Accepted: 09 Jul 2020
First published: 09 Jul 2020
This article is Open Access

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Dalton Trans., 2020,49, 12940-12944

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Spin crossover in the Prussian blue analogue FePt(CN)₆ induced by pressure or X-ray irradiation

H. L. B. Boström, A. B. Cairns, L. Liu, P. Lazor and I. E. Collings, Dalton Trans., 2020, 49, 12940 DOI: 10.1039/D0DT02036B

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