Preparation and properties of bilayer manganite films

Cha Li-Mei; Zhang Peng-Xiang; H. U. Habermeier

doi:10.1016/S0921-4526(02)01718-0

Preparation and properties of bilayer manganite films

Cha Li-Mei, Zhang Peng-Xiang^*, H. U. Habermeier

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

A bilayer manganite film La_2-2xSr_1+2xMn₂O₇ (x = 0.32) was successfully prepared by pulsed laser deposition. By controlling the parameters of deposition, the fabricated films are of single phase and grown well on two kinds of substrates with different lattice constants. It is found that there is 80°K difference between T_MI of the two films grown on SrTiO (001) and NdGaO (110). At the same time, the resistivity of the film on SrTiO (001) is 50 times higher than that of the film on NdGaO (110). We studied the influence of the interface strain and it turns out that the lattice mismatch between substrate and film is the main reason for the above observations. Tensile strain decreases T_MI with increasing resistivity, and compressive strain has the opposite effect. Using the double-exchange model of Zener, these results can be explained qualitatively.

Original language	English
Pages (from-to)	163-166
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	327
Issue number	2-4
DOIs	https://doi.org/10.1016/S0921-4526(02)01718-0
State	Published - Apr 2003
Externally published	Yes
Event	ISAMM 2002 - Ha Long Bay, Viet Nam Duration: 2 Oct 2002 → 4 Oct 2002

Keywords

Bilayer manganite thin film
CMR
PLD
Strain

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10.1016/S0921-4526(02)01718-0

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title = "Preparation and properties of bilayer manganite films",

abstract = "A bilayer manganite film La2-2xSr1+2xMn2O7 (x = 0.32) was successfully prepared by pulsed laser deposition. By controlling the parameters of deposition, the fabricated films are of single phase and grown well on two kinds of substrates with different lattice constants. It is found that there is 80°K difference between TMI of the two films grown on SrTiO (001) and NdGaO (110). At the same time, the resistivity of the film on SrTiO (001) is 50 times higher than that of the film on NdGaO (110). We studied the influence of the interface strain and it turns out that the lattice mismatch between substrate and film is the main reason for the above observations. Tensile strain decreases TMI with increasing resistivity, and compressive strain has the opposite effect. Using the double-exchange model of Zener, these results can be explained qualitatively.",

keywords = "Bilayer manganite thin film, CMR, PLD, Strain",

author = "Cha Li-Mei and Zhang Peng-Xiang and Habermeier, {H. U.}",

note = "Funding Information: The authors are thankful to MPI-FKF, Stuttgart and Yunnan science foundation (1999E003Z) for supporting this work.; ISAMM 2002 ; Conference date: 02-10-2002 Through 04-10-2002",

year = "2003",

month = apr,

doi = "10.1016/S0921-4526(02)01718-0",

language = "英语",

volume = "327",

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journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Preparation and properties of bilayer manganite films

AU - Li-Mei, Cha

AU - Peng-Xiang, Zhang

AU - Habermeier, H. U.

N1 - Funding Information: The authors are thankful to MPI-FKF, Stuttgart and Yunnan science foundation (1999E003Z) for supporting this work.

PY - 2003/4

Y1 - 2003/4

N2 - A bilayer manganite film La2-2xSr1+2xMn2O7 (x = 0.32) was successfully prepared by pulsed laser deposition. By controlling the parameters of deposition, the fabricated films are of single phase and grown well on two kinds of substrates with different lattice constants. It is found that there is 80°K difference between TMI of the two films grown on SrTiO (001) and NdGaO (110). At the same time, the resistivity of the film on SrTiO (001) is 50 times higher than that of the film on NdGaO (110). We studied the influence of the interface strain and it turns out that the lattice mismatch between substrate and film is the main reason for the above observations. Tensile strain decreases TMI with increasing resistivity, and compressive strain has the opposite effect. Using the double-exchange model of Zener, these results can be explained qualitatively.

AB - A bilayer manganite film La2-2xSr1+2xMn2O7 (x = 0.32) was successfully prepared by pulsed laser deposition. By controlling the parameters of deposition, the fabricated films are of single phase and grown well on two kinds of substrates with different lattice constants. It is found that there is 80°K difference between TMI of the two films grown on SrTiO (001) and NdGaO (110). At the same time, the resistivity of the film on SrTiO (001) is 50 times higher than that of the film on NdGaO (110). We studied the influence of the interface strain and it turns out that the lattice mismatch between substrate and film is the main reason for the above observations. Tensile strain decreases TMI with increasing resistivity, and compressive strain has the opposite effect. Using the double-exchange model of Zener, these results can be explained qualitatively.

KW - Bilayer manganite thin film

KW - CMR

KW - PLD

KW - Strain

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U2 - 10.1016/S0921-4526(02)01718-0

DO - 10.1016/S0921-4526(02)01718-0

M3 - 会议文章

AN - SCOPUS:0037399979

SN - 0921-4526

VL - 327

SP - 163

EP - 166

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 2-4

T2 - ISAMM 2002

Y2 - 2 October 2002 through 4 October 2002

ER -

Preparation and properties of bilayer manganite films

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Keywords

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