Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]

We studied the spin-state dependence of the electrical conductivity of two nanocrystalline powder samples of the spin crossover complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]. By applying an external pressure (up to 3 kbar), we were able to tune the charge transport p...

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Main Authors: Andrei-Cristian Gheorghe, Yurii S. Bibik, Olesia I. Kucheriv, Diana D. Barakhtii, Marin-Vlad Boicu, Ionela Rusu, Andrei Diaconu, Il’ya A. Gural’skiy, Gábor Molnár, Aurelian Rotaru
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Magnetochemistry
Subjects:
Online Access:https://www.mdpi.com/2312-7481/6/3/31
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author Andrei-Cristian Gheorghe
Yurii S. Bibik
Olesia I. Kucheriv
Diana D. Barakhtii
Marin-Vlad Boicu
Ionela Rusu
Andrei Diaconu
Il’ya A. Gural’skiy
Gábor Molnár
Aurelian Rotaru
author_facet Andrei-Cristian Gheorghe
Yurii S. Bibik
Olesia I. Kucheriv
Diana D. Barakhtii
Marin-Vlad Boicu
Ionela Rusu
Andrei Diaconu
Il’ya A. Gural’skiy
Gábor Molnár
Aurelian Rotaru
author_sort Andrei-Cristian Gheorghe
collection DOAJ
description We studied the spin-state dependence of the electrical conductivity of two nanocrystalline powder samples of the spin crossover complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]. By applying an external pressure (up to 3 kbar), we were able to tune the charge transport properties of the material from a more conductive low spin state to a crossover point toward a more conductive high spin state. We rationalize these results by taking into account the spin-state dependence of the activation parameters of the conductivity.
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spelling doaj.art-26f1954330c147669d5e8bd3de6011c62023-11-20T08:42:38ZengMDPI AGMagnetochemistry2312-74812020-07-01633110.3390/magnetochemistry6030031Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]Andrei-Cristian Gheorghe0Yurii S. Bibik1Olesia I. Kucheriv2Diana D. Barakhtii3Marin-Vlad Boicu4Ionela Rusu5Andrei Diaconu6Il’ya A. Gural’skiy7Gábor Molnár8Aurelian Rotaru9Faculty of Electrical Engineering and Computer Science & MANSiD Research Center, Stefan cel Mare University, 13, Str. Universitatii, 720229 Suceava, RomaniaDepartment of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska St., 01601 Kyiv, UkraineDepartment of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska St., 01601 Kyiv, UkraineDepartment of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska St., 01601 Kyiv, UkraineFaculty of Electrical Engineering and Computer Science & MANSiD Research Center, Stefan cel Mare University, 13, Str. Universitatii, 720229 Suceava, RomaniaFaculty of Electrical Engineering and Computer Science & MANSiD Research Center, Stefan cel Mare University, 13, Str. Universitatii, 720229 Suceava, RomaniaFaculty of Electrical Engineering and Computer Science & MANSiD Research Center, Stefan cel Mare University, 13, Str. Universitatii, 720229 Suceava, RomaniaDepartment of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska St., 01601 Kyiv, UkraineLCC, CNRS and Université de Toulouse, UPS, INP, F-31077 Toulouse, FranceFaculty of Electrical Engineering and Computer Science & MANSiD Research Center, Stefan cel Mare University, 13, Str. Universitatii, 720229 Suceava, RomaniaWe studied the spin-state dependence of the electrical conductivity of two nanocrystalline powder samples of the spin crossover complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]. By applying an external pressure (up to 3 kbar), we were able to tune the charge transport properties of the material from a more conductive low spin state to a crossover point toward a more conductive high spin state. We rationalize these results by taking into account the spin-state dependence of the activation parameters of the conductivity.https://www.mdpi.com/2312-7481/6/3/31spin crossovercharge transporthigh pressure
spellingShingle Andrei-Cristian Gheorghe
Yurii S. Bibik
Olesia I. Kucheriv
Diana D. Barakhtii
Marin-Vlad Boicu
Ionela Rusu
Andrei Diaconu
Il’ya A. Gural’skiy
Gábor Molnár
Aurelian Rotaru
Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]
Magnetochemistry
spin crossover
charge transport
high pressure
title Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]
title_full Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]
title_fullStr Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]
title_full_unstemmed Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]
title_short Anomalous Pressure Effects on the Electrical Conductivity of the Spin Crossover Complex [Fe(pyrazine){Au(CN)<sub>2</sub>}<sub>2</sub>]
title_sort anomalous pressure effects on the electrical conductivity of the spin crossover complex fe pyrazine au cn sub 2 sub sub 2 sub
topic spin crossover
charge transport
high pressure
url https://www.mdpi.com/2312-7481/6/3/31
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