# $\beta$-detected \NMR\ of 8Li in the normal state of 2H-NbSe$_2$

 Title $\beta$-detected \NMR\ of 8Li in the normal state of 2H-NbSe$_2$ Publication Type Journal Article Year of Publication 2006 Authors Wang, D, Hossain, MD, Salman, Z, Arseneau, D, Chow, KH, Daviel, S, Keeler, TA, Kiefl, RF, Kreitzman, SR, Levy, CDP, Morris, GD, Miller, RI, MacFarlane, WA, Parolin, TJ, Saadaoui, H Journal Physica B Volume 374–375 Pagination 239 - 242 ISSN 0921-4526 Abstract β -NMR of isolated 8Li has been investigated in the normal state of 2H- NbSe 2 . In a high magnetic field of 3 T 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 NbSe 2 layers and away from the conduction band. URL http://www.sciencedirect.com/science/article/pii/S0921452605012731 DOI 10.1016/j.physb.2005.11.064