Hydrogen annealing effects on polycrystalline La0.67Ba 0.33MnO3 compound

Yimin Cui; Liuwan Zhang; Chunchang Wang; Kai Shi; Bisong Cao

doi:10.1016/j.jmmm.2005.02.008

Hydrogen annealing effects on polycrystalline La_0.67Ba _0.33MnO₃ compound

Yimin Cui
, Liuwan Zhang^*
, Chunchang Wang
, Kai Shi
, Bisong Cao

^*Corresponding author for this work

Tsinghua University

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

7 Scopus citations

Abstract

Upon annealing polycrystalline La_0.67Ba_0.33MnO ₃ bulk samples in flowing 95%Ar:5%H₂ mixed gas at 700°C for different time, the insulator-metal transition temperature, TP and the amplitude of AC magnetic susceptibility were decreased first, then increased, finally decreased again. While the resistivity was increased monotonically. This anomalous behavior was explained by the combinational effects of oxygen loss and Ba ion vacancies caused by the segregation of Ba ion related impurity phase.

Original language	English
Pages (from-to)	21-25
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	297
Issue number	1
DOIs	https://doi.org/10.1016/j.jmmm.2005.02.008
State	Published - Feb 2006
Externally published	Yes

Keywords

A. Manganites
B. AC Magnetic susceptibility
C. Hydrogen annealing

Access to Document

10.1016/j.jmmm.2005.02.008

Cite this

@article{e4d48e2e28b44c62ba033cdc22d89009,

title = "Hydrogen annealing effects on polycrystalline La0.67Ba 0.33MnO3 compound",

abstract = "Upon annealing polycrystalline La0.67Ba0.33MnO 3 bulk samples in flowing 95\%Ar:5\%H2 mixed gas at 700°C for different time, the insulator-metal transition temperature, TP and the amplitude of AC magnetic susceptibility were decreased first, then increased, finally decreased again. While the resistivity was increased monotonically. This anomalous behavior was explained by the combinational effects of oxygen loss and Ba ion vacancies caused by the segregation of Ba ion related impurity phase.",

keywords = "A. Manganites, B. AC Magnetic susceptibility, C. Hydrogen annealing",

author = "Yimin Cui and Liuwan Zhang and Chunchang Wang and Kai Shi and Bisong Cao",

year = "2006",

month = feb,

doi = "10.1016/j.jmmm.2005.02.008",

language = "英语",

volume = "297",

pages = "21--25",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "1",

}

TY - JOUR

T1 - Hydrogen annealing effects on polycrystalline La0.67Ba 0.33MnO3 compound

AU - Cui, Yimin

AU - Zhang, Liuwan

AU - Wang, Chunchang

AU - Shi, Kai

AU - Cao, Bisong

PY - 2006/2

Y1 - 2006/2

N2 - Upon annealing polycrystalline La0.67Ba0.33MnO 3 bulk samples in flowing 95%Ar:5%H2 mixed gas at 700°C for different time, the insulator-metal transition temperature, TP and the amplitude of AC magnetic susceptibility were decreased first, then increased, finally decreased again. While the resistivity was increased monotonically. This anomalous behavior was explained by the combinational effects of oxygen loss and Ba ion vacancies caused by the segregation of Ba ion related impurity phase.

AB - Upon annealing polycrystalline La0.67Ba0.33MnO 3 bulk samples in flowing 95%Ar:5%H2 mixed gas at 700°C for different time, the insulator-metal transition temperature, TP and the amplitude of AC magnetic susceptibility were decreased first, then increased, finally decreased again. While the resistivity was increased monotonically. This anomalous behavior was explained by the combinational effects of oxygen loss and Ba ion vacancies caused by the segregation of Ba ion related impurity phase.

KW - A. Manganites

KW - B. AC Magnetic susceptibility

KW - C. Hydrogen annealing

UR - https://www.scopus.com/pages/publications/27344456827

U2 - 10.1016/j.jmmm.2005.02.008

DO - 10.1016/j.jmmm.2005.02.008

M3 - 文章

AN - SCOPUS:27344456827

SN - 0304-8853

VL - 297

SP - 21

EP - 25

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1

ER -

Hydrogen annealing effects on polycrystalline La_0.67Ba _0.33MnO₃ compound

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this