Metal-insulator transition in SrTiO3-x thin films induced by frozen-out carriers

Z. Q. Liu; D. P. Leusink; X. Wang; W. M. Lü; K. Gopinadhan; A. Annadi; Y. L. Zhao; X. H. Huang; S. W. Zeng; Z. Huang; A. Srivastava; S. Dhar; T. Venkatesan; Ariando

doi:10.1103/PhysRevLett.107.146802

Metal-insulator transition in SrTiO_3-x thin films induced by frozen-out carriers

Z. Q. Liu^*
, D. P. Leusink
, X. Wang
, W. M. Lü
, K. Gopinadhan
, A. Annadi
, Y. L. Zhao
, X. H. Huang
, S. W. Zeng
, Z. Huang
, A. Srivastava
, S. Dhar
, T. Venkatesan
, Ariando

^*Corresponding author for this work

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

132 Scopus citations

Abstract

We report optical, electrical and magnetotransport properties of oxygen deficient SrTiO₃ (SrTiO_3-x) thin films fabricated by pulsed laser deposition technique. The oxygen vacancies (O_vac) in the thin film are expected to be uniform. By comparing its electrical properties to those of bulk SrTiO_3-x, it was found that O_vac in bulk SrTiO_3-x is far from uniform over the whole material. The metal-insulator transition (MIT) observed in the SrTiO_3-x film was found to be induced by the carrier freeze-out effect. The low temperature frozen state can be reexcited by Joule heating, electric and intriguingly magnetic field.

Original language	English
Article number	146802
Journal	Physical Review Letters
Volume	107
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.107.146802
State	Published - 28 Sep 2011
Externally published	Yes

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title = "Metal-insulator transition in SrTiO3-x thin films induced by frozen-out carriers",

abstract = "We report optical, electrical and magnetotransport properties of oxygen deficient SrTiO3 (SrTiO3-x) thin films fabricated by pulsed laser deposition technique. The oxygen vacancies (Ovac) in the thin film are expected to be uniform. By comparing its electrical properties to those of bulk SrTiO3-x, it was found that Ovac in bulk SrTiO3-x is far from uniform over the whole material. The metal-insulator transition (MIT) observed in the SrTiO3-x film was found to be induced by the carrier freeze-out effect. The low temperature frozen state can be reexcited by Joule heating, electric and intriguingly magnetic field.",

author = "Liu, \{Z. Q.\} and Leusink, \{D. P.\} and X. Wang and L{\"u}, \{W. M.\} and K. Gopinadhan and A. Annadi and Zhao, \{Y. L.\} and Huang, \{X. H.\} and Zeng, \{S. W.\} and Z. Huang and A. Srivastava and S. Dhar and T. Venkatesan and Ariando",

year = "2011",

month = sep,

day = "28",

doi = "10.1103/PhysRevLett.107.146802",

language = "英语",

volume = "107",

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T1 - Metal-insulator transition in SrTiO3-x thin films induced by frozen-out carriers

AU - Liu, Z. Q.

AU - Leusink, D. P.

AU - Wang, X.

AU - Lü, W. M.

AU - Gopinadhan, K.

AU - Annadi, A.

AU - Zhao, Y. L.

AU - Huang, X. H.

AU - Zeng, S. W.

AU - Huang, Z.

AU - Srivastava, A.

AU - Dhar, S.

AU - Venkatesan, T.

AU - Ariando,

PY - 2011/9/28

Y1 - 2011/9/28

N2 - We report optical, electrical and magnetotransport properties of oxygen deficient SrTiO3 (SrTiO3-x) thin films fabricated by pulsed laser deposition technique. The oxygen vacancies (Ovac) in the thin film are expected to be uniform. By comparing its electrical properties to those of bulk SrTiO3-x, it was found that Ovac in bulk SrTiO3-x is far from uniform over the whole material. The metal-insulator transition (MIT) observed in the SrTiO3-x film was found to be induced by the carrier freeze-out effect. The low temperature frozen state can be reexcited by Joule heating, electric and intriguingly magnetic field.

AB - We report optical, electrical and magnetotransport properties of oxygen deficient SrTiO3 (SrTiO3-x) thin films fabricated by pulsed laser deposition technique. The oxygen vacancies (Ovac) in the thin film are expected to be uniform. By comparing its electrical properties to those of bulk SrTiO3-x, it was found that Ovac in bulk SrTiO3-x is far from uniform over the whole material. The metal-insulator transition (MIT) observed in the SrTiO3-x film was found to be induced by the carrier freeze-out effect. The low temperature frozen state can be reexcited by Joule heating, electric and intriguingly magnetic field.

UR - https://www.scopus.com/pages/publications/80053327873

U2 - 10.1103/PhysRevLett.107.146802

DO - 10.1103/PhysRevLett.107.146802

M3 - 文章

AN - SCOPUS:80053327873

SN - 0031-9007

VL - 107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 146802

ER -

Metal-insulator transition in SrTiO_3-x thin films induced by frozen-out carriers

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