| Autor: |
Lumata LL; Department of Physics, Florida State University, Tallahassee, FL 32310, USA. lloyd.lumata@utsouthwestern.edu, Choi KY, Brooks JS, Reyes AP, Kuhns PL, Wu G, Chen XH |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of physics. Condensed matter : an Institute of Physics journal [J Phys Condens Matter] 2010 Jul 28; Vol. 22 (29), pp. 295601. Date of Electronic Publication: 2010 Jun 28. |
| DOI: |
10.1088/0953-8984/22/29/295601 |
| Abstrakt: |
We report a (77)Se and (63)Cu nuclear magnetic resonance (NMR) investigation on the charge-density-wave (CDW) superconductor Cu(x)TiSe(2) (x = 0.05 and 0.07). At high magnetic fields where superconductivity is suppressed, the temperature dependence of (77)Se and (63)Cu spin-lattice relaxation rates 1/T(1) follow a linear relation. The slope of (77)Se 1/T(1) versus T increases with the Cu doping. This can be described by a modified Korringa relation which suggests the significance of electronic correlations and the Se 4p- and Ti 3d-band contribution to the density of states at the Fermi level in the studied compounds. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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