Abstract.
We investigate the pressure and temperature behavior of current-dependent resistivity of β-SrV6O15. We observe a switching between states of different resistivities in the insulating state of β-SrV6O15. In the low pressure phase, the resistive switching appears at temperatures below the semiconductor-insulator transition. In the high pressure phase, under ~1.6 GPa, the switching appears in the temperature range of the phase transition. The existence of switching may imply an important role of strontium off-stoichiometry for the electrical transport in β-SrV6O15. No electric-field-induced enhancement of the conductivity is observed. However, the conduction is significantly nonlinear under ~1.6 GPa, indicating that the charge order pattern in the high pressure phase is considerably different from that of the low pressure phase.
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Akrap, A., Gaal, R. & Forró, L. Resistive switching in β-SrV6O15 . Eur. Phys. J. B 61, 287–291 (2008). https://doi.org/10.1140/epjb/e2008-00074-4
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DOI: https://doi.org/10.1140/epjb/e2008-00074-4