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Magnetic properties of GdBaCo2O5.5−δ single crystals
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Liao, Da-Qian, Lees, Martin R., Balakrishnan, G. and Paul, Don McK. (2010) Magnetic properties of GdBaCo2O5.5−δ single crystals. In: International Conference on Magnetism (ICM 2009), Karlsruhe, Germany, 26-31 Jul 2009. Published in: Journal of Physics: Conference Series, Vol.200 (No.1). 012104. doi:10.1088/1742-6596/200/1/012104 ISSN 1742-6596.
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Official URL: http://dx.doi.org/10.1088/1742-6596/200/1/012104
Abstract
The layered perovskite compounds REBaCo(2)O(5.5-delta) (RE = Rare Earth) display interesting magnetic properties arising from the variable spin states of the Co ions. There is a competition between the antiferromagnetic and ferromagnetic ordering in these materials. These compounds also allow a wide variation of oxygen stoichiometry to tune the magnetic properties. Single crystals of GdBaCo(2)O(5.5-delta) have been grown by the floating-zone technique in air. The as-grown crystal displays a twinned structure. Oriented crystals isolated from the as-grown boule were annealed in a flow of oxygen to vary the oxygen stoichiometry. Magnetization measurements have been carried out on both as-grown and annealed crystals. Results of the specific heat of GdBaCo(2)O(5.56) crystals as well as the magnetic properties studied as a function of applied pressures (0 to 8 kbar) are presented.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Crystals -- Magnetic properties | ||||
Journal or Publication Title: | Journal of Physics: Conference Series | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 1742-6596 | ||||
Official Date: | 2010 | ||||
Dates: |
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Volume: | Vol.200 | ||||
Number: | No.1 | ||||
Page Range: | 012104 | ||||
DOI: | 10.1088/1742-6596/200/1/012104 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | International Conference on Magnetism (ICM 2009) | ||||
Type of Event: | Conference | ||||
Location of Event: | Karlsruhe, Germany | ||||
Date(s) of Event: | 26-31 Jul 2009 |
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