Observation of Metal–Insulator Transition (MIT) in Vanadium Oxides V2O3 and VO2 in XRD, DSC and DC Experiments

Autor: Paweł Polak, Jan Jamroz, Tomasz K. Pietrzak
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Crystals, Vol 13, Iss 9, p 1299 (2023)
Druh dokumentu: article
ISSN: 2073-4352
DOI: 10.3390/cryst13091299
Popis: Due to metal–insulator transitions occurring in those compounds, materials and devices based on vanadium (III) and (IV) oxides draw increasing scientific attention. In this paper, we observed the transitions in both oxides using contemporary laboratory equipment. Changes in the crystallographic structure were precisely investigated as a function of the temperature with a step of 2 °C. Thermal effects during transitions were observed using differential scanning calorimetry. The DC conductivity of the materials was measured quasi-continuously as a function of the temperature. All the experiments were consistent and showed considerable hysteresis of the metal–insulator transition in both vanadium oxides.
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