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Vacuum deposition of high-quality thin films displaying spin transition near room temperature

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Abstract

We report on [Fe(HB(tz)3)2] (tz = triazolyl) (1) thin films with thicknesses in the range of 20–200 nm, which were thermally evaporated on fused silica substrates. Using X-ray diffraction, Raman spectroscopy, UV spectrophotometry, magnetometry and atomic force microscopy, we show that the as-deposited amorphous films can be recrystallized by means of solvent–vapour annealing. The resulting crystalline films are dense, homogenous, highly oriented (with the orthorhombic c-axis normal to the substrate) and exhibit an abrupt and fully complete spin transition around 338 K for each film thickness. The films show stable morphology and spin crossover properties upon thermal cycling and also upon long-term storage in ambient air providing appealing prospects for possible applications in a range of nanoscale devices.

Graphical abstract: Vacuum deposition of high-quality thin films displaying spin transition near room temperature

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Publication details

The article was received on 08 Mar 2017, accepted on 05 Apr 2017 and first published on 05 Apr 2017


Article type: Paper
DOI: 10.1039/C7TC00999B
Citation: J. Mater. Chem. C, 2017, Advance Article
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    Vacuum deposition of high-quality thin films displaying spin transition near room temperature

    V. Shalabaeva, S. Rat, M. D. Manrique-Juarez, A. Bas, L. Vendier, L. Salmon, G. Molnár and A. Bousseksou, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC00999B

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