Electrical transport and magnetic properties of a possible electron-doped layered manganese oxide

Y. G. Zhao; Y. H. Li; S. B. Ogale; M. Rajeswari; V. Smolyaninova; T. Wu; A. Biswas; L. Salamanca-Riba; R. L. Greene; R. Ramesh; T. Venkatesan; J. H. Scott

Electrical transport and magnetic properties of a possible electron-doped layered manganese oxide

Y. G. Zhao^*, Y. H. Li, S. B. Ogale, M. Rajeswari, V. Smolyaninova, T. Wu, A. Biswas, L. Salamanca-Riba, R. L. Greene, R. Ramesh, T. Venkatesan, J. H. Scott

^*Corresponding author for this work

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

6 Scopus citations

Abstract

We report on the structural, transport, and magnetic properties of La_0.67Sr_0.33MnO_x thin films grown in vacuum by pulsed-laser deposition. The as-grown thin films have both the matrix La_1.34Sr_0.66MnO₄ phase with K₂NiF₄ structure and an embedded MnO phase. The electrical transport and magnetic properties of the films are determined mainly by those of the matrix phase. By annealing, the as-grown thin films can be transformed into the normal La_0.67Sr_0.33MnO₃ single phase, which shows the expected colossal magnetoresistance effect. Based on the composition of the matrix phase, and the structural, electrical, and magnetic properties of the films, we propose that the matrix phase is possibly electron doped with a mixed valence of Mn²⁺/Mn³⁺ instead of the Mn³⁺/Mn⁴⁺ as in the hole-doped case.

Original language	English (US)
Pages (from-to)	4141-4145
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	61
Issue number	6
State	Published - Feb 1 2000
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Zhao, Y. G. ; Li, Y. H. ; Ogale, S. B. ; Rajeswari, M. ; Smolyaninova, V. ; Wu, T. ; Biswas, A. ; Salamanca-Riba, L. ; Greene, R. L. ; Ramesh, R. ; Venkatesan, T. ; Scott, J. H. / Electrical transport and magnetic properties of a possible electron-doped layered manganese oxide. In: Physical Review B - Condensed Matter and Materials Physics. 2000 ; Vol. 61, No. 6. pp. 4141-4145.

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title = "Electrical transport and magnetic properties of a possible electron-doped layered manganese oxide",

abstract = "We report on the structural, transport, and magnetic properties of La0.67Sr0.33MnOx thin films grown in vacuum by pulsed-laser deposition. The as-grown thin films have both the matrix La1.34Sr0.66MnO4 phase with K2NiF4 structure and an embedded MnO phase. The electrical transport and magnetic properties of the films are determined mainly by those of the matrix phase. By annealing, the as-grown thin films can be transformed into the normal La0.67Sr0.33MnO3 single phase, which shows the expected colossal magnetoresistance effect. Based on the composition of the matrix phase, and the structural, electrical, and magnetic properties of the films, we propose that the matrix phase is possibly electron doped with a mixed valence of Mn2+/Mn3+ instead of the Mn3+/Mn4+ as in the hole-doped case.",

author = "Zhao, {Y. G.} and Li, {Y. H.} and Ogale, {S. B.} and M. Rajeswari and V. Smolyaninova and T. Wu and A. Biswas and L. Salamanca-Riba and Greene, {R. L.} and R. Ramesh and T. Venkatesan and Scott, {J. H.}",

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language = "English (US)",

volume = "61",

pages = "4141--4145",

journal = "Physical Review B",

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Electrical transport and magnetic properties of a possible electron-doped layered manganese oxide. / Zhao, Y. G.; Li, Y. H.; Ogale, S. B.; Rajeswari, M.; Smolyaninova, V.; Wu, T.; Biswas, A.; Salamanca-Riba, L.; Greene, R. L.; Ramesh, R.; Venkatesan, T.; Scott, J. H.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 61, No. 6, 01.02.2000, p. 4141-4145.

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

TY - JOUR

T1 - Electrical transport and magnetic properties of a possible electron-doped layered manganese oxide

AU - Zhao, Y. G.

AU - Li, Y. H.

AU - Ogale, S. B.

AU - Rajeswari, M.

AU - Smolyaninova, V.

AU - Wu, T.

AU - Biswas, A.

AU - Salamanca-Riba, L.

AU - Greene, R. L.

AU - Ramesh, R.

AU - Venkatesan, T.

AU - Scott, J. H.

PY - 2000/2/1

Y1 - 2000/2/1

N2 - We report on the structural, transport, and magnetic properties of La0.67Sr0.33MnOx thin films grown in vacuum by pulsed-laser deposition. The as-grown thin films have both the matrix La1.34Sr0.66MnO4 phase with K2NiF4 structure and an embedded MnO phase. The electrical transport and magnetic properties of the films are determined mainly by those of the matrix phase. By annealing, the as-grown thin films can be transformed into the normal La0.67Sr0.33MnO3 single phase, which shows the expected colossal magnetoresistance effect. Based on the composition of the matrix phase, and the structural, electrical, and magnetic properties of the films, we propose that the matrix phase is possibly electron doped with a mixed valence of Mn2+/Mn3+ instead of the Mn3+/Mn4+ as in the hole-doped case.

AB - We report on the structural, transport, and magnetic properties of La0.67Sr0.33MnOx thin films grown in vacuum by pulsed-laser deposition. The as-grown thin films have both the matrix La1.34Sr0.66MnO4 phase with K2NiF4 structure and an embedded MnO phase. The electrical transport and magnetic properties of the films are determined mainly by those of the matrix phase. By annealing, the as-grown thin films can be transformed into the normal La0.67Sr0.33MnO3 single phase, which shows the expected colossal magnetoresistance effect. Based on the composition of the matrix phase, and the structural, electrical, and magnetic properties of the films, we propose that the matrix phase is possibly electron doped with a mixed valence of Mn2+/Mn3+ instead of the Mn3+/Mn4+ as in the hole-doped case.

UR - http://www.scopus.com/inward/record.url?scp=0000509444&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0000509444

VL - 61

SP - 4141

EP - 4145

JO - Physical Review B

JF - Physical Review B

SN - 0163-1829

IS - 6

ER -

Electrical transport and magnetic properties of a possible electron-doped layered manganese oxide

Abstract

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