2007/01/23 by J. Shinagawa, Jun Shinagawa, Shinagawa, J. +18
Chemistry · Materials Science · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #Magnetism in coordination complexes #Organic and Molecular Conductors Research #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0701566
4 pages, 4 figures, Version 2: 2 sentence ammendaments on the last page, changes in references, corrected untits in Fig. 3.
openalex publication_date 2007/01/23 · arxiv created 2007/04/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
(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 77Se 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 \hc2 ≫ Hs.