Studies on Metal-Insulator Transition of Pyrochlore Compound Y_<2-x>Bi_xRu_2O_7
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概要
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V?triotrs phvsic?tl projcerties of' Y2 .Bi..Rtrz07 have been sttrdied, The critical tenapersttttreT0of a spin-glass tr?xtasitiora observed in the systetaa decre?rses xvith I ;tnd goes to zero stt III. iru the region of' tlae instrlsttor-raaetstl ph?tse 1ootrnd?try. Tlae loxv tettajceratture sjcecific he?rtcoefficietat "7 incre;rses xvith decrestsing I f'rotta 2.0, h?ts a uaaatxitaatrxaa ?tt x. ?tnd decreases xx'ith f'trrtherdecreatsing I. In Y2R.Ll2O7, tluer'e exists 21 sigraificant specific lae?tt anonaa;tly stt T(3. Bec;rtrse tlae2lI1Ol112l1lY does not dejcerad on the atpjclied taaagnetic field, it seeuaas to toe dtre to 21 strtrcttrrsrl plaasetransition, strggestirtg that the sjcin-gl?tss tr?trasitiorn is indtrced by this tr?rnsition. B5' det;tiledsttrdies on tlae relsttiorasltip l.>etxveeua tlae trstnsjcort properties stuad the tr?tnsition tetaaper?rttrresT3 of' Y2 ..IVI.RtrzO7 (1N?I:Bi, Ltr sand C?t) stnd Y2RLl2 .Ti.O7, an itutiutastte correlatiott of' tlaeitinerant nattrre xvith tlte strtrcttrrstl tr';tnsition is pointed otnt.
- 1999-09-15
著者
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Yoshii Shunsuke
Crest Japan Science And Technology Corporation (jst)
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Sato Masatoshi
Department Of Electrical And Electronics Engineering Sophia University
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Sato Masatoshi
Department Of Physics Division Of Material Science Nagoya University Crest Japan Science And Technol
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Sato Masatoshi
Department Of Agro-environmental Science Obihiro University Of Agriculture And Veterinary Medicine
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