Spin-Triplet Superconductivity in UNi2Al3 Revealed by the 27Al Knight Shift Measurement
Physical review letters Volume 89 Issue 3
Page 037002-
published_at 2002-07-15
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| File | |
| Title ( eng ) |
Spin-Triplet Superconductivity in UNi2Al3 Revealed by the 27Al Knight Shift Measurement
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| Creator |
Ishida K.
Ozaki D.
Kamatsuka T.
Tou Hideki
Kyogaku M.
Kitaoka Y.
Tateiwa N.
Sato N. K.
Aso N.
Geibel C.
Steglich F.
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| Source Title |
Physical review letters
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| Volume | 89 |
| Issue | 3 |
| Start Page | 037002 |
| Abstract |
We report 27Al Knight shift ( 27K) measurement on a single-crystal UNi2Al3 that reveals a coexistence of superconductivity and a spin-density-wave (SDW) type of magnetic ordering ( TSDW = 4.5 K). The spin part of 27K, 27Ks, does not change down to 50 mK across the superconducting (SC) transition temperature Tc∼0.9 K. In contrast with the isostructural compound UPd2Al3 ( Tc∼2 K), which was identified to be a spin-singlet d-wave superconductor, the behavior of 27K strongly supports that UNi2Al3, like UPt3 and Sr2RuO4, belongs to a class of spin-triplet SC pairing state superconductors.
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| NDC |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
The American Physical Society
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| Date of Issued | 2002-07-15 |
| Rights |
Copyright (c) 2002 The American Physical Society
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.89.037002
[DOI] http://dx.doi.org/10.1103/PhysRevLett.89.037002
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