Physics
New results for superconductivity in κ-(BEDT-TTF) 2 Cu(NCS) 2 when an applied magnetic field is aligned parallel to the conducting planes
Document Type
Conference Proceeding
Abstract
Using a Tunnel Diode Oscillator technique, we have measured the effect of a parallel magnetic field on the in-plane rf penetration depths in organic [α-(BEDT-TTF) 2NH 4Hg(SCN) 4 and κ-(BEDT-TTF) 2Cu(NCS) 2] and heavy fermion (CeCoIn 5) superconductors. We show that in this particular ge- ometry, the effects due to vortex activity are minimized. The penetration depth is then governed by the density of superconducting carriers. It is shown in many experiments including rf penetration depth measurement that α-(BEDT-TTF) 2NH 4 Hg(SCN) 4 and CeCoIn 5 have s-wave and d-wave pairing symmetries, respectively. The pairing symmetry of κ-(BEDT-TTF) 2-Cu(NCS) 2, however, is still an unsolved matter, showing inconsistent results. In this paper, the penetration depth of κ-(BEDT-TTF) 2Cu(NCS) 2 is shown to be more similar to α-(BEDT-TTF) 2 NH 4Hg(SCN) 4 than to CeCoIn 5, suggesting the pairing is nodeless. © 2007 Springer Science+Business Media, Inc.
Publication Title
Journal of Low Temperature Physics
Publication Date
2-2006
Volume
142
Issue
3-4
First Page
261
Last Page
264
ISSN
0022-2291
DOI
10.1007/s10909-006-9190-z
Keywords
74.20.Rp, 74.25.Dw, 74.25.Nf, 74.70.Kn
Repository Citation
Martin, C.; Cho, K.; Mihut, I.; Coffey, T.; Agosta, C. C.; Tozer, S. W.; Radovan, H. A.; Palm, E. C.; Murphy, T. P.; and Schlueter, J. A., "New results for superconductivity in κ-(BEDT-TTF) 2 Cu(NCS) 2 when an applied magnetic field is aligned parallel to the conducting planes" (2006). Physics. 31.
https://commons.clarku.edu/faculty_physics/31
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