Nonunitary Spin-Triplet Superconductivity in UPt3 : Evidence from 195Pt Knight Shift Study
Physical review letters Volume 80 Issue 14
Page 3129-3132
published_at 1998-04-06
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| File | |
| Title ( eng ) |
Nonunitary Spin-Triplet Superconductivity in UPt3 : Evidence from 195Pt Knight Shift Study
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| Creator |
Tou Hideki
Kitaoka Y.
Ishida K.
Asayama K.
Kimura N.
Ōnuki Y.
Yamamoto E.
Haga Y.
Maezawa K.
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| Source Title |
Physical review letters
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| Volume | 80 |
| Issue | 14 |
| Start Page | 3129 |
| End Page | 3132 |
| Abstract |
195Pt Knight shift (KS) measurements covering the superconducting multiple phases for major field ( H) orientations have been carried out on the high-quality single crystal UPt3. For H>5 kOe, the KS does not change below the superconducting transition temperature Tc down to 28 mK, regardless of major crystal orientations, which provides evidence that the odd-parity superconductivity with the parallel spin pairing is realized. By contrast, the KS decreases below Tc for Hb∥b axis and Hb<5 kOe and for Hc∥c axis and Hc<2.3 kOe, whereas the KS for Ha∥a axis is T independent across Tc down to Ha∼1.764 kOe. These novel findings entitle UPt3 as the first spin-triplet odd-parity superconductor including a nonunitary pairing characterized by the two-component d vector like db+idc at low T and low H.
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| NDC |
Physics [ 420 ]
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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 | 1998-04-06 |
| Rights |
Copyright (c) 1998 The American Physical Society
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[DOI] http://dx.doi.org/10.1103/PhysRevLett.80.3129
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