Fermi surface studies of {alpha}-phase organic metals and superconductors
Journal Article
·
· Journal of Low Temperature Physics
- Universitaet Karlsruhe (Germany)
- Grenoble High Magnetic Field Lab. (France); and others
The authors present first de Haas-van Alphen (dH{nu}A) experiments on the quasi-two-dimensional (quasi-2D) organic metals {alpha}-(ET){sub 2}MHg(SeCN){sub 4} (M = Tl or K) and compare the results with dH{nu}A data of the isostructural organic Superconductor {alpha}-(ET){sub 2}NH{sub 4}Hg(SCN){sub 4}. The angular dependences of the single found dH{nu}A frequency and the field-independent effective cyclotron mass, m{sub c}, perfectly follow the 2D 1/cos{Theta} behavior. From the observed spin-splitting zeros the authors unambiguously could extract the values of g{mu}{sub b}. Comparison with m{sub c} strongly suggests a reduced electron-phonon coupling constant in the nonsuperconducting salts.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 443720
- Report Number(s):
- CONF-960808--; CNN: Contract Wo444/2-2
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 105; ISSN 0022-2291; ISSN JLTPAC
- Country of Publication:
- United States
- Language:
- English
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