Rectifying properties of magnetite-based Schottky diode and the effects of magnetic field

Yunzhong Chen; J. R. Sun; Y. W.  Xie; D. J.  Wang; W. M.  Lu; S.  Liang; B. G. Shen

doi:10.1063/1.2719614

Rectifying properties of magnetite-based Schottky diode and the effects of magnetic field

Yunzhong Chen, J. R. Sun, Y. W. Xie, D. J. Wang, W. M. Lu, S. Liang, B. G. Shen

Chinese Academy of Sciences

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Abstract

Rectifying properties, with and without magnetic field, of a high quality Fe₃O₄/SrTiO₃:Nb Schottky diode have been experimentally studied. The junction exhibits an excellent rectifying behavior both below and above the Verwey temperature (T_V) of Fe₃O₄. Magnetic field has a weak but visible effect on the transport process of the junction, producing a negative magnetoresistance for T<T_V and a positive magnetoresistance for T>T_V. Based on an analysis of the current-voltage characteristics, the spin polarization of Fe3O4 has been deduced. It is a strong function of temperature, varying between −78% and 18%. © 2007 American Institute of Physics.

Original language	English
Article number	143508
Journal	Applied Physics Letters
Volume	90
Number of pages	3
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.2719614
Publication status	Published - 2007
Externally published	Yes

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title = "Rectifying properties of magnetite-based Schottky diode and the effects of magnetic field",

abstract = "Rectifying properties, with and without magnetic field, of a high quality Fe3O4/SrTiO3:Nb Schottky diode have been experimentally studied. The junction exhibits an excellent rectifying behavior both below and above the Verwey temperature (TV) of Fe3O4. Magnetic field has a weak but visible effect on the transport process of the junction, producing a negative magnetoresistance for TV and a positive magnetoresistance for T>TV. Based on an analysis of the current-voltage characteristics, the spin polarization of Fe3O4 has been deduced. It is a strong function of temperature, varying between −78% and 18%. {\textcopyright} 2007 American Institute of Physics.",

author = "Yunzhong Chen and Sun, {J. R.} and Xie, {Y. W.} and Wang, {D. J.} and Lu, {W. M.} and S. Liang and Shen, {B. G.}",

year = "2007",

doi = "10.1063/1.2719614",

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volume = "90",

journal = "Applied Physics Letters",

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T1 - Rectifying properties of magnetite-based Schottky diode and the effects of magnetic field

AU - Chen, Yunzhong

AU - Sun, J. R.

AU - Xie, Y. W.

AU - Wang, D. J.

AU - Lu, W. M.

AU - Liang, S.

AU - Shen, B. G.

PY - 2007

Y1 - 2007

N2 - Rectifying properties, with and without magnetic field, of a high quality Fe3O4/SrTiO3:Nb Schottky diode have been experimentally studied. The junction exhibits an excellent rectifying behavior both below and above the Verwey temperature (TV) of Fe3O4. Magnetic field has a weak but visible effect on the transport process of the junction, producing a negative magnetoresistance for TV and a positive magnetoresistance for T>TV. Based on an analysis of the current-voltage characteristics, the spin polarization of Fe3O4 has been deduced. It is a strong function of temperature, varying between −78% and 18%. © 2007 American Institute of Physics.

AB - Rectifying properties, with and without magnetic field, of a high quality Fe3O4/SrTiO3:Nb Schottky diode have been experimentally studied. The junction exhibits an excellent rectifying behavior both below and above the Verwey temperature (TV) of Fe3O4. Magnetic field has a weak but visible effect on the transport process of the junction, producing a negative magnetoresistance for TV and a positive magnetoresistance for T>TV. Based on an analysis of the current-voltage characteristics, the spin polarization of Fe3O4 has been deduced. It is a strong function of temperature, varying between −78% and 18%. © 2007 American Institute of Physics.

U2 - 10.1063/1.2719614

DO - 10.1063/1.2719614

M3 - Journal article

SN - 0003-6951

VL - 90

JO - Applied Physics Letters

JF - Applied Physics Letters

M1 - 143508

ER -

Rectifying properties of magnetite-based Schottky diode and the effects of magnetic field

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