Source:http://linkedlifedata.com/resource/pubmed/id/15954797
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
24
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pubmed:dateCreated |
2005-6-15
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pubmed:abstractText |
A newly designed ferromagnetic, ferroelectric compound, Bi(2)NiMnO(6), was prepared by high-pressure synthesis at 6 GPa. The crystal structure, as determined by synchrotron X-ray powder diffraction, is a heavily distorted double perovskite with Ni(2+) and Mn(4+) ions ordered in a rock-salt configuration. The presence of 6s(2) lone pairs of Bi(3+) ions and the covalent Bi-O bonds give ferroelectric properties with T(CE) of 485 K, while -Ni(2+)-O-Mn(4+)-O-Ni(2+)- magnetic paths lead to a ferromagnetism with T(CM) of 140 K. This simple material design to distribute two magnetic elements with and without e(g) electrons on B sites of Bi- and Pb-based perovkites can be applied to other Bi(2)M(2+)M'(4+)O(6) and Pb(2)M(3+)M'(5+)O(6) systems to search for newer ferromagnetic ferroelectrics.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0002-7863
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
22
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pubmed:volume |
127
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
8889-92
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pubmed:year |
2005
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pubmed:articleTitle |
Designed ferromagnetic, ferroelectric Bi(2)NiMnO(6).
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pubmed:affiliation |
Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan. masaki@scl.kyoto-u.ac.jp
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pubmed:publicationType |
Journal Article
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