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Magnetocapacitance effect in nonmultiferroic YFe03 single crystal

Journal Article


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Abstract


  • YFeO3 single crystal displays two relaxor-like dielectric relaxations, one at low temperature

    (170300 K) and one at high temperature (370520 K), which are attributed to the activation of

    electrons and oxygen vacancies, respectively. Above the temperature at which electrons are

    activated, the sample displays a large magnetocapacitance effect. Comparison of the impedance

    Cole-Cole plots measured with and without applied magnetic field reveals that the occurrence of

    magnetocapacitance effect is accompanied with an increasing in DC conductivity under magnetic

    field after the activation of electrons, which is explained by the enhancement of electron jumping

    in Fe2þ-O-Fe3þ chains by magnetic field. Thus the magnetocapacitance effect in YFeO3 single

    crystal can be explained by the combination of the Maxwell-Wagner space charge effect and/or

    magnetoresistance effect, depending on the frequency range.

Publication Date


  • 2012

Citation


  • Cheng, Z., Shen, H., Xu, J. Y., Liu, P., Zhang, S. J., Wang, J. L., Wang, X. & Dou, S. X. (2012). Magnetocapacitance effect in nonmultiferroic YFe03 single crystal. Journal of Applied Physics, 111 (3), 034103-1-034103-5.

Scopus Eid


  • 2-s2.0-84862160026

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1561&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/561

Has Global Citation Frequency


Start Page


  • 034103-1

End Page


  • 034103-5

Volume


  • 111

Issue


  • 3

Place Of Publication


  • United States

Abstract


  • YFeO3 single crystal displays two relaxor-like dielectric relaxations, one at low temperature

    (170300 K) and one at high temperature (370520 K), which are attributed to the activation of

    electrons and oxygen vacancies, respectively. Above the temperature at which electrons are

    activated, the sample displays a large magnetocapacitance effect. Comparison of the impedance

    Cole-Cole plots measured with and without applied magnetic field reveals that the occurrence of

    magnetocapacitance effect is accompanied with an increasing in DC conductivity under magnetic

    field after the activation of electrons, which is explained by the enhancement of electron jumping

    in Fe2þ-O-Fe3þ chains by magnetic field. Thus the magnetocapacitance effect in YFeO3 single

    crystal can be explained by the combination of the Maxwell-Wagner space charge effect and/or

    magnetoresistance effect, depending on the frequency range.

Publication Date


  • 2012

Citation


  • Cheng, Z., Shen, H., Xu, J. Y., Liu, P., Zhang, S. J., Wang, J. L., Wang, X. & Dou, S. X. (2012). Magnetocapacitance effect in nonmultiferroic YFe03 single crystal. Journal of Applied Physics, 111 (3), 034103-1-034103-5.

Scopus Eid


  • 2-s2.0-84862160026

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1561&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/561

Has Global Citation Frequency


Start Page


  • 034103-1

End Page


  • 034103-5

Volume


  • 111

Issue


  • 3

Place Of Publication


  • United States