ScholarWorks@성균관대학교

초록

The magnetic domain-induced transition in strongly correlated vanadium dioxide (VO2) is studied at cryogenic temperatures. Here, measurements are carried out at insulating, metallic, and transition regimes, where a complex dynamic between the electric and magnetic properties of the metallic and insulating domains results in an interesting observation of the metal-insulator transition induced and tuned by the applied magnetic field. The bidirectional measurements show hysteresis and peaks upon the application of positive and negative electric and magnetic fields. The appearance of higher hysteresis indicates the interplay of various magnetic domains, whereas an overall positive magnetoresistance, abrupt transitions, and a steep decline in current point towards the alignment, shrinking, and expansion of the metallic domains with increasing magnetic field strength.

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