Stabilization of antiferromagnetic phases by magnetic field annealing in phase separated manganites Pr1-xCaxMnO3

Joonghoe Dho; N. H. Hur

doi:10.1016/j.ssc.2006.08.050

Stabilization of antiferromagnetic phases by magnetic field annealing in phase separated manganites Pr_1-xCa_xMnO₃

Joonghoe Dho
, N. H. Hur

Department of Physics

Sogang University

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

5 Scopus citations

Abstract

We report a detailed study on the effects of magnetic field annealing on the magnetic and transport properties of single crystals of Pr_1-xCa_xMnO₃ with x = 0.2 - 0.4. Below the Néel temperature, the samples with 0.3 ≤ x ≤ 0.35 undergo a typical metamagnetic transition from antiferromagnetic (AFM) to ferromagnetic (FM) upon applying a field of about 3 T. After the first metamagnetic transition, remarkably, the critical field of the second metamagnetic transition is increased by about 1 T, suggesting that the AFM phase is stabilized by the magnetic field-annealing. This field-stabilized AFM phase might be attributed to the coexistence of inhomogeneous FM and AFM phases near the phase boundary that are strongly dependent upon a magnetic field. A general phase diagram of Pr_1-xCa_xMnO₃ is thus modified on the basis of irreversible magnetic transitions.

Original language	English
Pages (from-to)	469-473
Number of pages	5
Journal	Solid State Communications
Volume	140
Issue number	9-10
DOIs	https://doi.org/10.1016/j.ssc.2006.08.050
State	Published - Dec 2006

Keywords

A. Magnetically ordered materials
D. Electronic transport

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10.1016/j.ssc.2006.08.050

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title = "Stabilization of antiferromagnetic phases by magnetic field annealing in phase separated manganites Pr1-xCaxMnO3",

abstract = "We report a detailed study on the effects of magnetic field annealing on the magnetic and transport properties of single crystals of Pr1-xCaxMnO3 with x = 0.2 - 0.4. Below the N{\'e}el temperature, the samples with 0.3 ≤ x ≤ 0.35 undergo a typical metamagnetic transition from antiferromagnetic (AFM) to ferromagnetic (FM) upon applying a field of about 3 T. After the first metamagnetic transition, remarkably, the critical field of the second metamagnetic transition is increased by about 1 T, suggesting that the AFM phase is stabilized by the magnetic field-annealing. This field-stabilized AFM phase might be attributed to the coexistence of inhomogeneous FM and AFM phases near the phase boundary that are strongly dependent upon a magnetic field. A general phase diagram of Pr1-xCaxMnO3 is thus modified on the basis of irreversible magnetic transitions.",

keywords = "A. Magnetically ordered materials, D. Electronic transport",

author = "Joonghoe Dho and Hur, \{N. H.\}",

year = "2006",

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doi = "10.1016/j.ssc.2006.08.050",

language = "English",

volume = "140",

pages = "469--473",

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TY - JOUR

T1 - Stabilization of antiferromagnetic phases by magnetic field annealing in phase separated manganites Pr1-xCaxMnO3

AU - Dho, Joonghoe

AU - Hur, N. H.

PY - 2006/12

Y1 - 2006/12

N2 - We report a detailed study on the effects of magnetic field annealing on the magnetic and transport properties of single crystals of Pr1-xCaxMnO3 with x = 0.2 - 0.4. Below the Néel temperature, the samples with 0.3 ≤ x ≤ 0.35 undergo a typical metamagnetic transition from antiferromagnetic (AFM) to ferromagnetic (FM) upon applying a field of about 3 T. After the first metamagnetic transition, remarkably, the critical field of the second metamagnetic transition is increased by about 1 T, suggesting that the AFM phase is stabilized by the magnetic field-annealing. This field-stabilized AFM phase might be attributed to the coexistence of inhomogeneous FM and AFM phases near the phase boundary that are strongly dependent upon a magnetic field. A general phase diagram of Pr1-xCaxMnO3 is thus modified on the basis of irreversible magnetic transitions.

AB - We report a detailed study on the effects of magnetic field annealing on the magnetic and transport properties of single crystals of Pr1-xCaxMnO3 with x = 0.2 - 0.4. Below the Néel temperature, the samples with 0.3 ≤ x ≤ 0.35 undergo a typical metamagnetic transition from antiferromagnetic (AFM) to ferromagnetic (FM) upon applying a field of about 3 T. After the first metamagnetic transition, remarkably, the critical field of the second metamagnetic transition is increased by about 1 T, suggesting that the AFM phase is stabilized by the magnetic field-annealing. This field-stabilized AFM phase might be attributed to the coexistence of inhomogeneous FM and AFM phases near the phase boundary that are strongly dependent upon a magnetic field. A general phase diagram of Pr1-xCaxMnO3 is thus modified on the basis of irreversible magnetic transitions.

KW - A. Magnetically ordered materials

KW - D. Electronic transport

UR - https://www.scopus.com/pages/publications/33750366606

U2 - 10.1016/j.ssc.2006.08.050

DO - 10.1016/j.ssc.2006.08.050

M3 - Article

AN - SCOPUS:33750366606

SN - 0038-1098

VL - 140

SP - 469

EP - 473

JO - Solid State Communications

JF - Solid State Communications

IS - 9-10

ER -

Stabilization of antiferromagnetic phases by magnetic field annealing in phase separated manganites Pr_1-xCa_xMnO₃

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