Magnetoresistance across metal–insulator transition in VO2 micro crystals

Davinder Singh; C. S. Yadav; B. Viswanath

doi:10.1016/j.matlet.2017.03.066

Magnetoresistance across metal–insulator transition in VO₂ micro crystals

Davinder Singh
, C. S. Yadav
, B. Viswanath

Indian Institute of Technology Mandi

Research output: Contribution to journal › Article › peer-review

Abstract

We report the effect of magnetic field (H) on the insulator-metal (IM) transition in VO₂ microcrystals. We observed that the temperature coefficient of resistance (TCR) in the monoclinic phase (T < 338 K) varies from negative to positive values on the application of external magnetic field, and follows ∼H² behavior. The magneto-resistance (MR) of VO₂ microcrystals also varies from small negative to positive value across the transition temperature. The presented aspects are relevant for understanding the influence of magnetic field on the electrical resistance of functional oxides across phase transition.

Original language	English
Pages (from-to)	248-251
Number of pages	4
Journal	Materials Letters
Volume	196
DOIs	https://doi.org/10.1016/j.matlet.2017.03.066
Publication status	Published - 1 Jun 2017
Externally published	Yes

Keywords

Electrical properties
Magnetoresistance
Metal insulator transition
Temperature coefficient of resistance

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10.1016/j.matlet.2017.03.066

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title = "Magnetoresistance across metal–insulator transition in VO2 micro crystals",

abstract = "We report the effect of magnetic field (H) on the insulator-metal (IM) transition in VO2 microcrystals. We observed that the temperature coefficient of resistance (TCR) in the monoclinic phase (T < 338 K) varies from negative to positive values on the application of external magnetic field, and follows ∼H2 behavior. The magneto-resistance (MR) of VO2 microcrystals also varies from small negative to positive value across the transition temperature. The presented aspects are relevant for understanding the influence of magnetic field on the electrical resistance of functional oxides across phase transition.",

keywords = "Electrical properties, Magnetoresistance, Metal insulator transition, Temperature coefficient of resistance",

author = "Davinder Singh and Yadav, \{C. S.\} and B. Viswanath",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

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day = "1",

doi = "10.1016/j.matlet.2017.03.066",

language = "English",

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T1 - Magnetoresistance across metal–insulator transition in VO2 micro crystals

AU - Singh, Davinder

AU - Yadav, C. S.

AU - Viswanath, B.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We report the effect of magnetic field (H) on the insulator-metal (IM) transition in VO2 microcrystals. We observed that the temperature coefficient of resistance (TCR) in the monoclinic phase (T < 338 K) varies from negative to positive values on the application of external magnetic field, and follows ∼H2 behavior. The magneto-resistance (MR) of VO2 microcrystals also varies from small negative to positive value across the transition temperature. The presented aspects are relevant for understanding the influence of magnetic field on the electrical resistance of functional oxides across phase transition.

AB - We report the effect of magnetic field (H) on the insulator-metal (IM) transition in VO2 microcrystals. We observed that the temperature coefficient of resistance (TCR) in the monoclinic phase (T < 338 K) varies from negative to positive values on the application of external magnetic field, and follows ∼H2 behavior. The magneto-resistance (MR) of VO2 microcrystals also varies from small negative to positive value across the transition temperature. The presented aspects are relevant for understanding the influence of magnetic field on the electrical resistance of functional oxides across phase transition.

KW - Electrical properties

KW - Magnetoresistance

KW - Metal insulator transition

KW - Temperature coefficient of resistance

UR - https://www.scopus.com/pages/publications/85015729945

U2 - 10.1016/j.matlet.2017.03.066

DO - 10.1016/j.matlet.2017.03.066

M3 - Article

AN - SCOPUS:85015729945

SN - 0167-577X

VL - 196

SP - 248

EP - 251

JO - Materials Letters

JF - Materials Letters

ER -

Magnetoresistance across metal–insulator transition in VO₂ micro crystals

Abstract

Keywords

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