Neutron diffraction study of the Mn spin correlations in Bi 0.46Ca 0.54Mn 0.95Cr 0.05O 3

Chi Hung Lee; Chun Ming Wu; Daniel Hsu; Chin Wei Wang; Chih Jen Wang; Wen Hsien Li; Chun Chuen Yang; Jirong Sun; Jeffrey W. Lynn

doi:10.1143/JPSJS.80SB.SB013

Neutron diffraction study of the Mn spin correlations in Bi _0.46Ca _0.54Mn _0.95Cr _0.05O ₃

Chi Hung Lee, Chun Ming Wu, Daniel Hsu, Chin Wei Wang, Chih Jen Wang, Wen Hsien Li, Chun Chuen Yang, Jirong Sun, Jeffrey W. Lynn

Department of Physics

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

Abstract

The magnetic and transport properties of 5% Cr-doped Bi _0.46Ca _0.54Mn _0.95Cr _0.05O ₃ have been investigated using magnetic susceptibility, specific heat, and neutron diffraction measurements. The compound crystallizes into an orthorhombic Pbnm symmetry. Charge ordering is revealed below 285 K. The thermal behavior of the charge transport can be described by three-dimensional variable range hopping conduction. The Mn spins become ordered below 90 K, which is significantly lower than the value of 140 K reported for the Cr-free compound. However, short-range magnetic correlations persist up to much higher temperatures.

Original language	English
Article number	SB013
Journal	Journal of the Physical Society of Japan
Volume	80
Issue number	SUPPL. B
DOIs	https://doi.org/10.1143/JPSJS.80SB.SB013
State	Published - Dec 2011

Keywords

CMR
Magnetic correlation
Magnetic structure
Neutron powder diffraction

Access to Document

10.1143/JPSJS.80SB.SB013

Cite this

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title = "Neutron diffraction study of the Mn spin correlations in Bi 0.46Ca 0.54Mn 0.95Cr 0.05O 3 ",

abstract = "The magnetic and transport properties of 5% Cr-doped Bi 0.46Ca 0.54Mn 0.95Cr 0.05O 3 have been investigated using magnetic susceptibility, specific heat, and neutron diffraction measurements. The compound crystallizes into an orthorhombic Pbnm symmetry. Charge ordering is revealed below 285 K. The thermal behavior of the charge transport can be described by three-dimensional variable range hopping conduction. The Mn spins become ordered below 90 K, which is significantly lower than the value of 140 K reported for the Cr-free compound. However, short-range magnetic correlations persist up to much higher temperatures.",

keywords = "CMR, Magnetic correlation, Magnetic structure, Neutron powder diffraction",

author = "Lee, {Chi Hung} and Wu, {Chun Ming} and Daniel Hsu and Wang, {Chin Wei} and Wang, {Chih Jen} and Li, {Wen Hsien} and Yang, {Chun Chuen} and Jirong Sun and Lynn, {Jeffrey W.}",

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volume = "80",

journal = "Journal of the Physical Society of Japan",

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TY - JOUR

T1 - Neutron diffraction study of the Mn spin correlations in Bi 0.46Ca 0.54Mn 0.95Cr 0.05O 3

AU - Lee, Chi Hung

AU - Wu, Chun Ming

AU - Hsu, Daniel

AU - Wang, Chin Wei

AU - Wang, Chih Jen

AU - Li, Wen Hsien

AU - Yang, Chun Chuen

AU - Sun, Jirong

AU - Lynn, Jeffrey W.

PY - 2011/12

Y1 - 2011/12

N2 - The magnetic and transport properties of 5% Cr-doped Bi 0.46Ca 0.54Mn 0.95Cr 0.05O 3 have been investigated using magnetic susceptibility, specific heat, and neutron diffraction measurements. The compound crystallizes into an orthorhombic Pbnm symmetry. Charge ordering is revealed below 285 K. The thermal behavior of the charge transport can be described by three-dimensional variable range hopping conduction. The Mn spins become ordered below 90 K, which is significantly lower than the value of 140 K reported for the Cr-free compound. However, short-range magnetic correlations persist up to much higher temperatures.

AB - The magnetic and transport properties of 5% Cr-doped Bi 0.46Ca 0.54Mn 0.95Cr 0.05O 3 have been investigated using magnetic susceptibility, specific heat, and neutron diffraction measurements. The compound crystallizes into an orthorhombic Pbnm symmetry. Charge ordering is revealed below 285 K. The thermal behavior of the charge transport can be described by three-dimensional variable range hopping conduction. The Mn spins become ordered below 90 K, which is significantly lower than the value of 140 K reported for the Cr-free compound. However, short-range magnetic correlations persist up to much higher temperatures.

KW - CMR

KW - Magnetic correlation

KW - Magnetic structure

KW - Neutron powder diffraction

UR - http://www.scopus.com/inward/record.url?scp=84855314280&partnerID=8YFLogxK

U2 - 10.1143/JPSJS.80SB.SB013

DO - 10.1143/JPSJS.80SB.SB013

M3 - 期刊論文

AN - SCOPUS:84855314280

SN - 0031-9015

VL - 80

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - SUPPL. B

M1 - SB013