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Piezoresistive effect in the [Fe(Htrz)2(trz)](BF4) spin crossover complex

Diaconu, Andrei and Lupu, Simona-Lacramioara and Rusu, Ionela and Risca, Ioan-Marian and Salmon, Lionel and Molnar, Gabor and Bousseksou, Azzedine and Demont, Philippe and Rotaru, Aurelian Piezoresistive effect in the [Fe(Htrz)2(trz)](BF4) spin crossover complex. (2017) The Journal of Physical Chemistry Letters, 8. 3147-3151. ISSN 1948-7185

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Official URL: http://dx.doi.org/10.1021/acs.jpclett.7b01111


We report on the effect of hydrostatic pressure on the electrical conductivity and dielectric permittivity of the [Fe(Htrz)2(trz)](BF4) (Htrz = 1H-1,2,4,- triazole) spin crossover complex. Variable-temperature and -pressure broad-band impedance spectrometry revealed a piezoresistive effect of more than 1 order of magnitude for pressures as low as 500 bar, associated with a large pressure-induced hysteresis of 1700 bar. The origin of the piezoresistive effect has been attributed to the pressure-induced spin state switching in the complex, and the associated P,T phase diagram was determined.

Item Type:Article
Additional Information:Thanks to ACS editor. The original PDF of the article can be found at http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.7b01111
HAL Id:hal-01556504
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Universitatea Stefan cel Mare Suceava - USU (ROMANIA)
Laboratory name:
ANR - Commission Européenne
Deposited On:05 Jul 2017 09:28

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