Chemical control of colossal magnetoresistance in manganites

Chih Hung Shen; Ru Shi Liu; Ravi Gundakaram; Shu Fen Hu; Jauyn Grace Lin; Chao Yuan Huang; Chien Min Wang

doi:10.1016/S0254-0584(01)00453-9

Chemical control of colossal magnetoresistance in manganites

Chih Hung Shen, Ru Shi Liu^*, Ravi Gundakaram, Shu Fen Hu, Jauyn Grace Lin, Chao Yuan Huang, Chien Min Wang

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

The evolution of the structural, electrical and magnetic properties with the isovalent chemical substitution of Ca²⁺ into the Sr²⁺ sites in the new series of two-dimensional La_1.2(Sr_1.8-xCa_x)Mn₂ O₇ samples (0 ≤ x ≤ 0.8) and three-dimensional La_0.6(Sr_0.4-xCa_x)MnO₃ samples (0 ≤ x ≤ 0.4) has been investigated. The compositional dependence of the structural variation has been found in La_0.6(Sr_0.4-xCa_x)MnO₃. The Curie temperatures (T_C) decreased from 135 to 102K and 370 to 270K for x = 0-0.4 in La_1.2(Sr_1.8-xCa_x)Mn₂ O₇ and La_0.6(Sr_0.4-xCa_x)MnO₃, respectively. Our results confirm that the dimensionality as well as ionic size plays an important role in controlling the colossal magnetoresistance in manganites.

Original language	English
Pages (from-to)	281-285
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	72
Issue number	2
DOIs	https://doi.org/10.1016/S0254-0584(01)00453-9
Publication status	Published - 2001 Nov 1
Externally published	Yes

Keywords

Magnetic structure
Magnetometer
TEM
XRD

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1016/S0254-0584(01)00453-9

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@article{5523372bdd5d43f882d2018172213098,

title = "Chemical control of colossal magnetoresistance in manganites",

abstract = "The evolution of the structural, electrical and magnetic properties with the isovalent chemical substitution of Ca2+ into the Sr2+ sites in the new series of two-dimensional La1.2(Sr1.8-xCax)Mn2 O7 samples (0 ≤ x ≤ 0.8) and three-dimensional La0.6(Sr0.4-xCax)MnO3 samples (0 ≤ x ≤ 0.4) has been investigated. The compositional dependence of the structural variation has been found in La0.6(Sr0.4-xCax)MnO3. The Curie temperatures (TC) decreased from 135 to 102K and 370 to 270K for x = 0-0.4 in La1.2(Sr1.8-xCax)Mn2 O7 and La0.6(Sr0.4-xCax)MnO3, respectively. Our results confirm that the dimensionality as well as ionic size plays an important role in controlling the colossal magnetoresistance in manganites.",

keywords = "Magnetic structure, Magnetometer, TEM, XRD",

author = "Shen, {Chih Hung} and Liu, {Ru Shi} and Ravi Gundakaram and Hu, {Shu Fen} and Lin, {Jauyn Grace} and Huang, {Chao Yuan} and Wang, {Chien Min}",

note = "Funding Information: The work is supported by the National Science Council of the ROC under the grant numbers of NSC 89-2113-M-002-004 and NSC 89-2112-M-002-030. ",

year = "2001",

month = nov,

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doi = "10.1016/S0254-0584(01)00453-9",

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T1 - Chemical control of colossal magnetoresistance in manganites

AU - Shen, Chih Hung

AU - Liu, Ru Shi

AU - Gundakaram, Ravi

AU - Hu, Shu Fen

AU - Lin, Jauyn Grace

AU - Huang, Chao Yuan

AU - Wang, Chien Min

N1 - Funding Information: The work is supported by the National Science Council of the ROC under the grant numbers of NSC 89-2113-M-002-004 and NSC 89-2112-M-002-030.

PY - 2001/11/1

Y1 - 2001/11/1

N2 - The evolution of the structural, electrical and magnetic properties with the isovalent chemical substitution of Ca2+ into the Sr2+ sites in the new series of two-dimensional La1.2(Sr1.8-xCax)Mn2 O7 samples (0 ≤ x ≤ 0.8) and three-dimensional La0.6(Sr0.4-xCax)MnO3 samples (0 ≤ x ≤ 0.4) has been investigated. The compositional dependence of the structural variation has been found in La0.6(Sr0.4-xCax)MnO3. The Curie temperatures (TC) decreased from 135 to 102K and 370 to 270K for x = 0-0.4 in La1.2(Sr1.8-xCax)Mn2 O7 and La0.6(Sr0.4-xCax)MnO3, respectively. Our results confirm that the dimensionality as well as ionic size plays an important role in controlling the colossal magnetoresistance in manganites.

AB - The evolution of the structural, electrical and magnetic properties with the isovalent chemical substitution of Ca2+ into the Sr2+ sites in the new series of two-dimensional La1.2(Sr1.8-xCax)Mn2 O7 samples (0 ≤ x ≤ 0.8) and three-dimensional La0.6(Sr0.4-xCax)MnO3 samples (0 ≤ x ≤ 0.4) has been investigated. The compositional dependence of the structural variation has been found in La0.6(Sr0.4-xCax)MnO3. The Curie temperatures (TC) decreased from 135 to 102K and 370 to 270K for x = 0-0.4 in La1.2(Sr1.8-xCax)Mn2 O7 and La0.6(Sr0.4-xCax)MnO3, respectively. Our results confirm that the dimensionality as well as ionic size plays an important role in controlling the colossal magnetoresistance in manganites.

KW - Magnetic structure

KW - Magnetometer

KW - TEM

KW - XRD

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DO - 10.1016/S0254-0584(01)00453-9

M3 - Article

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SN - 0254-0584

VL - 72

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EP - 285

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

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ER -

Chemical control of colossal magnetoresistance in manganites

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