13C NMR and static magnetic susceptibility in C60 superconductors : Possible influence of Kondo impurity
Physical review. B, Condensed matter Volume 58 Issue 17
Page 11603-11606
published_at 1998-11-01
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| File | |
| Title ( eng ) |
13C NMR and static magnetic susceptibility in C60 superconductors : Possible influence of Kondo impurity
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| Creator |
Maniwa Y.
Muroga N.
Sato N.
Tou Hideki
Shimoda H.
Iwasa Y.
Mitani H.
Kikuchi K.
Suzuki S.
Achiba Y.
Kosaka M.
Tanigaki K.
Chen X.
Labes M. M.
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| Source Title |
Physical review. B, Condensed matter
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| Volume | 58 |
| Issue | 17 |
| Start Page | 11603 |
| End Page | 11606 |
| Abstract |
The static spin susceptibility, χsSQ and χsNMR, in C60 superconductors K3C60 and Rb3C60 was studied using a dc superconducting quantum interference device magnetometer and 13C NMR. We found that χsSQ has a peculiar temperature (T) dependence behaving as (1-CT2) with a positive constant C∼(1×10-6) deg-2, contrary to the almost T independent χsNMR. These observations indicate a possibility that there exist Kondo-like impurities, whose Kondo temperature is ∼500 K and whose content is ∼0.001 spins per carbon. On the basis of these studies, the lattice constant dependence of the intrinsic spin susceptibility was established to be dχs/da0=(5.7±0.4)×10-4 emu/mol C60/Å in A3C60 superconductors where A is an alkali metal.
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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 | 1998-11-01 |
| Rights |
Copyright (c) 1998 American Physical Society
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[DOI] 10.1103/PhysRevB.58.11603
[ISSN] 1098-0121
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.58.11603
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