Strong reduction of quasiparticle scattering rate with gap formation in CeNiSn

Physical Review B - Condensed Matter and Materials Physics 56 巻 13 号 8277-8281 頁 1997-10-01 発行
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タイトル ( eng )
Strong reduction of quasiparticle scattering rate with gap formation in CeNiSn
作成者
Shibauchi Takasada
Katase Nobuyuki
Tamegai Tsuyoshi
Uchinokura Kunimitsu
Nakamoto Go
Menovsky Alois A.
収録物名
Physical Review B - Condensed Matter and Materials Physics
56
13
開始ページ 8277
終了ページ 8281
抄録
We measured the temperature dependence of the surface impedance Zs - Rs + iXs at 9.6 and 14 GHz in a single crystal of the Kondo lattice compound CeNiSn, from which microwave complex conductivity σ(T) = σ1(T) - iσ2(T) was determined. Below about 10 K the imaginary part σ2 increases rapidly and the real part σ1 is much lower than the dc conductivity. These results indicate a rapid decrease in the scattering rate of the quasiparticles, whose excitation spectrum is drastically changed with the coherence gap formation at low temperatures.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 1997-10-01
権利情報
Copyright (c) 1997 The American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.56.8277
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.70.064406