Anisotropic pseudogap in CeNiSn and CeRhSb studied by a thermal-conductivity measurement
Physical Review B - Condensed Matter and Materials Physics Volume 55 Issue 10
Page 6421-6428
published_at 1997-05-01
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| File | |
| Title ( eng ) |
Anisotropic pseudogap in CeNiSn and CeRhSb studied by a thermal-conductivity measurement
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| Creator |
Kobayashi Norio
Yoshino Takenobu
Kobayashi Katsushi
Nakamoto Go
Fujii Hironobu
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| Source Title |
Physical Review B - Condensed Matter and Materials Physics
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| Volume | 55 |
| Issue | 10 |
| Start Page | 6421 |
| End Page | 6428 |
| Abstract |
We have measured the thermal conductivity κ for CeNiSn, CeNi0.95M0.05Sn (M=Co,Cu), and CeRhSb single crystals. The pronounced enhancement of κ along the b axis is observed around 5 and 10 K in CeNiSn and CeRhSb, respectively. In CeNiSn, this enhancement is almost completely suppressed either by application of a magnetic field of 15 T along the a axis, which is the easy axis of magnetization, or by the substitution of 5% Co and Cu for Ni. These results indicate that the enhancement of κ along the b axis originates from the opening of the pseudogap in these compounds. On the other hand, the enhancement of κ along the a axis in CeNiSn and those along the a and c axis in CeRhSb are much smaller than that along the b axis. These anisotropic behaviors in κ reflect the anisotropy of the gap in these compounds.
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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 | 1997-05-01 |
| 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.55.6421
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.65.132405
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