^<63>Cu Knight Shift Study in High-T_c Superconductor Tl_2Ba_2CuO_<6+y> with a Single CuO_2 Layer
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概要
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"Cu Knight shift in Tl.Ba.CuO.., with a single CUO2 plane ltas been measured byusing a partially oriented powder with the c-axis perpendicular to the external field(A.5). For the compounds with T.= 72 K and 40K, K.. exclusively connected to thespin susceptibility (z,) is 7'-independent above T., while it decreases rapidly below T..By taking into account the 7'-independent orbital shift of K...= O.24% and O.26%, respectively, 7,(T) is found to become almost zero below T/ T.= 0.3, in good agreemtwith the isotropic energy gap (.s'- wave) model with a larger energy gap (2,1 = 4.4k.. T.)than the BCS value (2,1 =3.5A.7'.). For the nonsupercondttcting T1.Ba.CuO...,K..(7,) exhibits no 7'-variation, which is different from the behavior observed in otherhigh-7'. oxides except YBa.Cu.O..
- 社団法人日本物理学会の論文
- 1990-10-15
著者
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KITAOKA Yoshio
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka Universit
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SHIMAKAWA Yuichi
Fundamental Research Laboratories, NEC Corporation
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KUBO Yoshimi
Fundamental Research Laboratories, NEC Corporation
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Asayama Kunisuke
Department of Material Physics, Faculty of Engineering Science, Osaka University
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Yoh Kohori
Department Of Material Science Faculty Of Science Himeji Institute Of Technology
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Asayama Kunisuke
Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Asayama Kunisuke
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Kohori Y
Chiba Univ. Chiba
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Fujiwara K
Shimane Univ. Matsue
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Fujiwara Kenji
Department Of Materials Science Shimane University
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Karaki Y
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Kitaoka Yoshio
Graduate School Of Engineering Science Osaka University
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Kitaoka Yoshio
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Fujiwara Koji
Department Of Physics Division Of Material Science Nagoya University
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MANAKO Takashi
Fundamental Research Laboratories, NEC Corporation
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Shimakawa Y
Nec Corp. Ibaraki Jpn
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Shimakawa Yuichi
Fundamental Res. Labs. Nec Corp.
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Kubo Yoshimi
Fundamental Res. Labs. Nec Corp.
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Fujiwara K
Kyushu Inst. Design Fukuoka Jpn
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MANAKO Takashi
Joint Research Center for Atom Technology (JRCAT)
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Fujiwara Kenji
Department Of Gastroenterology And Hepatology Saitama Medical School
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Manako T
Nec Corp. Ibaraki Jpn
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Manako Takashi
Fundamental Research Laboratories Nec Corporation
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Fujiwara Kenji
Department Of Materials Sciences Shimane University
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Fujiwara Kenji
Department Of Gastroenterology And Hepatology Faculty Of Medicine Saitama Medical University
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Fujiwara Kenji
Department of Materials Science, Shimane University
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Fujiwara Kenji
Department of Chemistry, Faculty of Science, Hokkaido University
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