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Quantum oscillations near Bc2 in the organic superconductor κ-(BEDT-TTF)2Cu(NCS)2

✍ Scribed by P.J. van der Wel; J. Caulfield; R. Corcoran; P. Day; S.M. Hayden; W. Hayes; M. Kurmoo; P. Meeson; J. Singleton; M. Springford

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
221 KB
Volume
235-240
Category
Article
ISSN
0921-4534

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✦ Synopsis

We report a study of the de Haas-van Alphen effect near the upper critical field in superconducting ~¢-(BEDT-TTF)2Cu(NCS)2. The experiments have been carried out for a range of sample orientation with respect to the magnetic field and temperatures down to 20 mK. On entering the vortex state, an attenuation of the dHvA signal is observed relative to an extrapolation of the standard Lifshitz-Kosevich formula, using band parameters measured in the normal state.

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✍ R. Itti; H. Mori; K. Ikeda; I. Hirabayashi; N. Koshizuka; S. Tanaka 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 200 KB

An x-ray photoelectron spectroscopic (XPS) study of the 10.4K superconductor r-(BEDT-TrF)2Cu(NCS)2 is reported. Chemical environment of the atoms in this organic salt was discussed based on the XPS core-level results. Binding energies of the nonequivalent C and S sites in the donor BEDT-TTF and the