2005/11/14 by D. Wang, M. D. Hossain, Z. Salman +14 · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Advanced NMR Techniques and Applications #Physics of Superconductivity and Magnetism #Superconducting Materials and Applications #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1016/j.physb.2005.11.064
published as Physica B, 374-375, 239 (2006) · accepted for publication in Physica B
arxiv created 2005/11/14 · openalex publication_date 2006/01/11 · arxiv updated 2009/12/01 · openalex created_date 2017/03/16 · openalex updated_date 2026/07/28
β-NMR of isolated 8Li has been investigated in the normal state of 2H-NbSe2. In a high magnetic field of 3T a single resonance is observed with a Gaussian line width of 3.5 kHz. The line shape varies weakly as function of magnetic field and temperature but has a strong orientation dependence. The nuclear electric quadrupole splitting is unresolved implying that the electric field gradients are 10-100 times smaller than in other non-cubic crystals. The nuclear spin relaxation rate is also anomalously small but varies linearly with temperature as expected for Korringa relaxation in a metal. These results suggest that Li adopts an interstitial position between the weakly coupled NbSe2 layers and away from the conduction band.