Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 8, Issue 13, Pages 3147-3151Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.7b01111
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Funding
- French Romanian project ANR-UEFISCDI [9ROFR/ 01.02.2013, ANR-12-IS07-0003-01]
- European Commission through SPINSWITCH project (H2020-MSCA-RISE) [734322]
- Marie Curie Actions (MSCA) [734322] Funding Source: Marie Curie Actions (MSCA)
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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.
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