Electronic and magnetic instability in Pr0.65Ca 0.25Sr0.1MnO3

S. Mollah; H. L. Huang; S. J. Liu; P. L. Ho; W. L. Huang; C. W. Huang; C. P. Sun; J. Y. Lin; Y. S. Gou; W. H. Li; H. D. Yang

doi:10.1016/S0304-8853(03)00268-3

Electronic and magnetic instability in Pr_0.65Ca _0.25Sr_0.1MnO₃

S. Mollah, H. L. Huang, S. J. Liu, P. L. Ho, W. L. Huang, C. W. Huang, C. P. Sun, J. Y. Lin, Y. S. Gou, W. H. Li, H. D. Yang^*

^*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

Electronic and magnetic instability in polycrystalline Pr _0.65Ca_0.25Sr_0.1MnO₃ manganite has been established from a systematic study of resistivity (ρ), magnetization (M) and specific heat (C). The sample shows a charge ordering transition at T_CO ∼ 200 K, an antiferromagnetic (AFM) ordering transition at T_N ∼ 175 K, a metal-insulator (MI) transition at T_MI ∼ 80 K and an unusual magnetic ordering transition at T_M ^* ∼ 45 K in the absence of magnetic fields. Though the C data do not show any anomaly at T_MI for MI transition, these illustrate a much smaller anomaly than expected one at T_M ^* and is suppressed by magnetic fields. This indicates that the unusual magnetic ordering in this sample is of canted, fluctuated or phase separation of AFM and ferromagnetic in nature which is established from the T-H phase diagram, as well as the thermal and magnetic hysteresis in ρ, M and C.

Original language	English
Pages (from-to)	215-221
Number of pages	7
Journal	Journal of Magnetism and Magnetic Materials
Volume	265
Issue number	2
DOIs	https://doi.org/10.1016/S0304-8853(03)00268-3
Publication status	Published - 2003 Sept
Externally published	Yes

Keywords

CMR
Manganites
Phase instability

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/S0304-8853(03)00268-3

Cite this

@article{7ce7d5969af34a8a963b7e306856dbbe,

title = "Electronic and magnetic instability in Pr0.65Ca 0.25Sr0.1MnO3",

abstract = "Electronic and magnetic instability in polycrystalline Pr 0.65Ca0.25Sr0.1MnO3 manganite has been established from a systematic study of resistivity (ρ), magnetization (M) and specific heat (C). The sample shows a charge ordering transition at TCO ∼ 200 K, an antiferromagnetic (AFM) ordering transition at TN ∼ 175 K, a metal-insulator (MI) transition at TMI ∼ 80 K and an unusual magnetic ordering transition at TM * ∼ 45 K in the absence of magnetic fields. Though the C data do not show any anomaly at TMI for MI transition, these illustrate a much smaller anomaly than expected one at TM * and is suppressed by magnetic fields. This indicates that the unusual magnetic ordering in this sample is of canted, fluctuated or phase separation of AFM and ferromagnetic in nature which is established from the T-H phase diagram, as well as the thermal and magnetic hysteresis in ρ, M and C.",

keywords = "CMR, Manganites, Phase instability",

author = "S. Mollah and Huang, {H. L.} and Liu, {S. J.} and Ho, {P. L.} and Huang, {W. L.} and Huang, {C. W.} and Sun, {C. P.} and Lin, {J. Y.} and Gou, {Y. S.} and Li, {W. H.} and Yang, {H. D.}",

note = "Funding Information: This work was supported by National Science Council of Republic of China under contract Nos. NSC91-2112-M110-005 and NSC90-2112-M009-046.",

year = "2003",

month = sep,

doi = "10.1016/S0304-8853(03)00268-3",

language = "English",

volume = "265",

pages = "215--221",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Electronic and magnetic instability in Pr0.65Ca 0.25Sr0.1MnO3

AU - Mollah, S.

AU - Huang, H. L.

AU - Liu, S. J.

AU - Ho, P. L.

AU - Huang, W. L.

AU - Huang, C. W.

AU - Sun, C. P.

AU - Lin, J. Y.

AU - Gou, Y. S.

AU - Li, W. H.

AU - Yang, H. D.

N1 - Funding Information: This work was supported by National Science Council of Republic of China under contract Nos. NSC91-2112-M110-005 and NSC90-2112-M009-046.

PY - 2003/9

Y1 - 2003/9

N2 - Electronic and magnetic instability in polycrystalline Pr 0.65Ca0.25Sr0.1MnO3 manganite has been established from a systematic study of resistivity (ρ), magnetization (M) and specific heat (C). The sample shows a charge ordering transition at TCO ∼ 200 K, an antiferromagnetic (AFM) ordering transition at TN ∼ 175 K, a metal-insulator (MI) transition at TMI ∼ 80 K and an unusual magnetic ordering transition at TM * ∼ 45 K in the absence of magnetic fields. Though the C data do not show any anomaly at TMI for MI transition, these illustrate a much smaller anomaly than expected one at TM * and is suppressed by magnetic fields. This indicates that the unusual magnetic ordering in this sample is of canted, fluctuated or phase separation of AFM and ferromagnetic in nature which is established from the T-H phase diagram, as well as the thermal and magnetic hysteresis in ρ, M and C.

AB - Electronic and magnetic instability in polycrystalline Pr 0.65Ca0.25Sr0.1MnO3 manganite has been established from a systematic study of resistivity (ρ), magnetization (M) and specific heat (C). The sample shows a charge ordering transition at TCO ∼ 200 K, an antiferromagnetic (AFM) ordering transition at TN ∼ 175 K, a metal-insulator (MI) transition at TMI ∼ 80 K and an unusual magnetic ordering transition at TM * ∼ 45 K in the absence of magnetic fields. Though the C data do not show any anomaly at TMI for MI transition, these illustrate a much smaller anomaly than expected one at TM * and is suppressed by magnetic fields. This indicates that the unusual magnetic ordering in this sample is of canted, fluctuated or phase separation of AFM and ferromagnetic in nature which is established from the T-H phase diagram, as well as the thermal and magnetic hysteresis in ρ, M and C.

KW - CMR

KW - Manganites

KW - Phase instability

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