Magnetic field dependent vibrational modes in {kappa}-(ET){sub 2}Cu(SCN){sub 2}.
We report the infrared reflectance of the 10.4 K organic superconductor {kappa}-(ET){sub 2}Cu(SCN){sub 2} as a function of applied magnetic field at 4.2 K, allowing us to explore changes in intramolecular vibrational modes between the superconducting (low field) and normal (high field) states. Several vibrational modes display field dependence, including {nu}{sub 3}(A{sub g}), {nu}{sub 60} (B3g), and {nu}{sub 21}(B{sub 1g}). Changes in {nu}{sub 3}, which involve the central C=C bond of the ET building block molecule, are especially complex, and include frequency, linewidth, and intensity modifications. These results show that intramolecular vibrational modes are involved in the superconducting to normal state transition in {kappa}-(ET){sub 2}Cu(SCN){sub 2} below T{sub c}.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; NSF
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 961077
- Report Number(s):
- ANL/MSD/JA-44423
- Journal Information:
- Phys. Rev. B, Journal Name: Phys. Rev. B Journal Issue: May 1, 2003 Vol. 67; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- ENGLISH
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