Magnetic and electron transport properties of Cr-doped (Nd, Sr)MnO3 single crystals

Jun Takeuchi; Tara P. Dhakal; Seitaro Hirahara; Kiyotaka Miyoshi

doi:10.1016/S0304-8853(01)00571-6

Magnetic and electron transport properties of Cr-doped (Nd, Sr)MnO₃ single crystals

Jun Takeuchi
, Tara P. Dhakal
, Seitaro Hirahara
, Kiyotaka Miyoshi

Electrical and Computer Eng

Binghamton University

Shimane University

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

8 Scopus citations

Abstract

The effect of Cr-doping on the Mn site in Nd_1-ySr_yMnO₃ (y = 0.33 and 0.5) single crystals grown by the floating zone method has been studied. The y = 0.33 system exhibits a transition at Curie temperature (T_C = 250K) to ferromagnetic metal (FMM). The doping of Cr³⁺ ions up to 6 at% enhances the colossal magnetoresistance effect. The y = 0.5 system exhibits a transition at T_C = 260K to FMM and at Néel temperature (T_N = 160K) to antiferromagnetic insulator (AFMI). The doping of 5 at% Cr³⁺ ions lowers T_C to be 250K and completely suppresses the AFMI state.

Original language	English
Pages (from-to)	173-175
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	239
Issue number	1-3
DOIs	https://doi.org/10.1016/S0304-8853(01)00571-6
State	Published - Feb 2002

Keywords

Charge ordering
Colossal magnetoresistance
Doping effects
Metal-insulator transition

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10.1016/S0304-8853(01)00571-6

Cite this

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title = "Magnetic and electron transport properties of Cr-doped (Nd, Sr)MnO3 single crystals",

abstract = "The effect of Cr-doping on the Mn site in Nd1-ySryMnO3 (y = 0.33 and 0.5) single crystals grown by the floating zone method has been studied. The y = 0.33 system exhibits a transition at Curie temperature (TC = 250K) to ferromagnetic metal (FMM). The doping of Cr3+ ions up to 6 at\% enhances the colossal magnetoresistance effect. The y = 0.5 system exhibits a transition at TC = 260K to FMM and at N{\'e}el temperature (TN = 160K) to antiferromagnetic insulator (AFMI). The doping of 5 at\% Cr3+ ions lowers TC to be 250K and completely suppresses the AFMI state.",

keywords = "Charge ordering, Colossal magnetoresistance, Doping effects, Metal-insulator transition",

author = "Jun Takeuchi and Dhakal, \{Tara P.\} and Seitaro Hirahara and Kiyotaka Miyoshi",

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doi = "10.1016/S0304-8853(01)00571-6",

language = "English",

volume = "239",

pages = "173--175",

journal = "Journal of Magnetism and Magnetic Materials",

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publisher = "Elsevier B.V.",

number = "1-3",

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TY - JOUR

T1 - Magnetic and electron transport properties of Cr-doped (Nd, Sr)MnO3 single crystals

AU - Takeuchi, Jun

AU - Dhakal, Tara P.

AU - Hirahara, Seitaro

AU - Miyoshi, Kiyotaka

PY - 2002/2

Y1 - 2002/2

N2 - The effect of Cr-doping on the Mn site in Nd1-ySryMnO3 (y = 0.33 and 0.5) single crystals grown by the floating zone method has been studied. The y = 0.33 system exhibits a transition at Curie temperature (TC = 250K) to ferromagnetic metal (FMM). The doping of Cr3+ ions up to 6 at% enhances the colossal magnetoresistance effect. The y = 0.5 system exhibits a transition at TC = 260K to FMM and at Néel temperature (TN = 160K) to antiferromagnetic insulator (AFMI). The doping of 5 at% Cr3+ ions lowers TC to be 250K and completely suppresses the AFMI state.

AB - The effect of Cr-doping on the Mn site in Nd1-ySryMnO3 (y = 0.33 and 0.5) single crystals grown by the floating zone method has been studied. The y = 0.33 system exhibits a transition at Curie temperature (TC = 250K) to ferromagnetic metal (FMM). The doping of Cr3+ ions up to 6 at% enhances the colossal magnetoresistance effect. The y = 0.5 system exhibits a transition at TC = 260K to FMM and at Néel temperature (TN = 160K) to antiferromagnetic insulator (AFMI). The doping of 5 at% Cr3+ ions lowers TC to be 250K and completely suppresses the AFMI state.

KW - Charge ordering

KW - Colossal magnetoresistance

KW - Doping effects

KW - Metal-insulator transition

UR - https://www.scopus.com/pages/publications/0036465311

U2 - 10.1016/S0304-8853(01)00571-6

DO - 10.1016/S0304-8853(01)00571-6

M3 - Article

SN - 0304-8853

VL - 239

SP - 173

EP - 175

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-3

ER -

Magnetic and electron transport properties of Cr-doped (Nd, Sr)MnO₃ single crystals

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Keywords

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