Strong reduction of quasiparticle scattering rate with gap formation in CeNiSn
Physical Review B - Condensed Matter and Materials Physics Volume 56 Issue 13
Page 8277-8281
published_at 1997-10-01
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| File | |
| Title ( eng ) |
Strong reduction of quasiparticle scattering rate with gap formation in CeNiSn
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| Creator |
Shibauchi Takasada
Katase Nobuyuki
Tamegai Tsuyoshi
Uchinokura Kunimitsu
Nakamoto Go
Menovsky Alois A.
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| Source Title |
Physical Review B - Condensed Matter and Materials Physics
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| Volume | 56 |
| Issue | 13 |
| Start Page | 8277 |
| End Page | 8281 |
| Abstract |
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.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 1997-10-01 |
| Rights |
Copyright (c) 1997 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.56.8277
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.70.064406
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