Article Dans Une Revue Physical Review Letters Année : 2007

Superconducting state of the organic conductor (TMTSF)2ClO4

Résumé

(TMTSF)2ClO4 is a quasi-one-dimensional organic conductor and superconductor with Tc=1.4K, and one of at least two Bechgaard salts observed to have upper critical fields far exceeding the paramagnetic limit. Nevertheless, the Se77 NMR Knight shift at low fields reveals a decrease in spin susceptibility χs consistent with singlet spin pairing. The field dependence of the spin-lattice relaxation rate at 100mK exhibits a sharp crossover (or phase transition) at a field Hs∼15kOe, to a regime where χs is close to the normal state value, even though Hc2Hs.

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hal-04944311 , version 1 (07-04-2025)

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J. Shinagawa, Y. Kurosaki, F. Zhang, C. Parker, S.E. Brown, et al.. Superconducting state of the organic conductor (TMTSF)2ClO4. Physical Review Letters, 2007, 98 (14), ⟨10.1103/PhysRevLett.98.147002⟩. ⟨hal-04944311⟩
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