C-13 NMR-STUDY OF NESTING INSTABILITY IN ALPHA-(BEDT-TTF)(2)RBHG(SCN)(4)

Authors
MIYAGAWA K KAWAMOTO A KANODA K
Citation
K. Miyagawa et al., C-13 NMR-STUDY OF NESTING INSTABILITY IN ALPHA-(BEDT-TTF)(2)RBHG(SCN)(4), Physical review. B, Condensed matter, 56(14), 1997, pp. 8487-8490
Citations number
22
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
14
Year of publication
1997
Pages
8487 - 8490
Database
ISI
SICI code
0163-1829(1997)56:14<8487:CNONII>2.0.ZU;2-T
Abstract
The low-temperature nesting instability in the quasi-two-dimensional o rganic conductor, alpha-(BEDT-TTF)(2)RbHg(SCN)(4), has been investigat ed by C-13 NMR. Below 12 K, drastic decreases in the Knight shift and 1/(T1T) were observed with neither splitting nor broadening in the NMR spectra. The 1/(T1T) shows no enhancement around the nesting instabil ity, unlike the conventional spin-density-wave (SDW) transition. The p resent C-13 NMR data are suggestive of nonmagnetic transition but allo w only an unusual case of mobile state in the SDW scenario.