Effect of oxygen content on the structural, transport, and magnetic properties of La1-δMn1-δO3 thin films

Y. G. Zhao; M. Rajeswari; R. C. Srivastava; A. Biswas; S. B. Ogale; D. J. Kang; W. Prellier; Zhiyun Chen; R. L. Greene; T. Venkatesan

doi:10.1063/1.371693

Effect of oxygen content on the structural, transport, and magnetic properties of La_1-δMn_1-δO₃ thin films

Y. G. Zhao
, M. Rajeswari
, R. C. Srivastava
, A. Biswas
, S. B. Ogale
, D. J. Kang
, W. Prellier
, Zhiyun Chen
, R. L. Greene
, T. Venkatesan

University of Maryland, College Park
Tsinghua University

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

18 Scopus citations

Abstract

(110) oriented La_1-δMn_1-δO₃ thin films with different oxygen content were grown on (001) LaAlO₃ substrates by pulsed laser deposition. Samples prepared in higher oxygen partial pressures show a ferromagnetic transition around 200 K. The transport is thermally activated with a change in slope at the ferromagnetic transition. Samples prepared and annealed in vacuum show signatures of mixed ferromagnetic and antiferromagnetic phases, and are insulators. The pure antiferromagnetic phase (as expected and observed in bulk materials with optimum oxygen stoichiometry) was not obtained in our experiments, even in the strongly reduced films.

Original language	English
Pages (from-to)	6327-6330
Number of pages	4
Journal	Journal of Applied Physics
Volume	86
Issue number	11
DOIs	https://doi.org/10.1063/1.371693
State	Published - Dec 1999
Externally published	Yes

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10.1063/1.371693

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@article{22854068055741bd9f96055a4572ba34,

title = "Effect of oxygen content on the structural, transport, and magnetic properties of La1-δMn1-δO3 thin films",

abstract = "(110) oriented La1-δMn1-δO3 thin films with different oxygen content were grown on (001) LaAlO3 substrates by pulsed laser deposition. Samples prepared in higher oxygen partial pressures show a ferromagnetic transition around 200 K. The transport is thermally activated with a change in slope at the ferromagnetic transition. Samples prepared and annealed in vacuum show signatures of mixed ferromagnetic and antiferromagnetic phases, and are insulators. The pure antiferromagnetic phase (as expected and observed in bulk materials with optimum oxygen stoichiometry) was not obtained in our experiments, even in the strongly reduced films.",

author = "Zhao, \{Y. G.\} and M. Rajeswari and Srivastava, \{R. C.\} and A. Biswas and Ogale, \{S. B.\} and Kang, \{D. J.\} and W. Prellier and Zhiyun Chen and Greene, \{R. L.\} and T. Venkatesan",

year = "1999",

month = dec,

doi = "10.1063/1.371693",

language = "English",

volume = "86",

pages = "6327--6330",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "11",

}

TY - JOUR

T1 - Effect of oxygen content on the structural, transport, and magnetic properties of La1-δMn1-δO3 thin films

AU - Zhao, Y. G.

AU - Rajeswari, M.

AU - Srivastava, R. C.

AU - Biswas, A.

AU - Ogale, S. B.

AU - Kang, D. J.

AU - Prellier, W.

AU - Chen, Zhiyun

AU - Greene, R. L.

AU - Venkatesan, T.

PY - 1999/12

Y1 - 1999/12

N2 - (110) oriented La1-δMn1-δO3 thin films with different oxygen content were grown on (001) LaAlO3 substrates by pulsed laser deposition. Samples prepared in higher oxygen partial pressures show a ferromagnetic transition around 200 K. The transport is thermally activated with a change in slope at the ferromagnetic transition. Samples prepared and annealed in vacuum show signatures of mixed ferromagnetic and antiferromagnetic phases, and are insulators. The pure antiferromagnetic phase (as expected and observed in bulk materials with optimum oxygen stoichiometry) was not obtained in our experiments, even in the strongly reduced films.

AB - (110) oriented La1-δMn1-δO3 thin films with different oxygen content were grown on (001) LaAlO3 substrates by pulsed laser deposition. Samples prepared in higher oxygen partial pressures show a ferromagnetic transition around 200 K. The transport is thermally activated with a change in slope at the ferromagnetic transition. Samples prepared and annealed in vacuum show signatures of mixed ferromagnetic and antiferromagnetic phases, and are insulators. The pure antiferromagnetic phase (as expected and observed in bulk materials with optimum oxygen stoichiometry) was not obtained in our experiments, even in the strongly reduced films.

UR - https://www.scopus.com/pages/publications/0001415840

U2 - 10.1063/1.371693

DO - 10.1063/1.371693

M3 - Article

AN - SCOPUS:0001415840

SN - 0021-8979

VL - 86

SP - 6327

EP - 6330

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 11

ER -

Effect of oxygen content on the structural, transport, and magnetic properties of La_1-δMn_1-δO₃ thin films

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