Raman and microwave surface impedance measurements in the organic superconductor κ-Et2Cu[N(CN)2]BrxCl1−x

Truong, K.P.; Danilovic, B; Achkir, D.; Jandl, S.; Poirier, M.

doi:10.1016/s0379-6779(97)80356-6

Synthetic Metals

1997

DOI: 10.1016/s0379-6779(97)80356-6

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Raman and microwave surface impedance measurements in the organic superconductor κ-Et2Cu[N(CN)2]BrxCl1−x

K.P. Truong

B Danilovic

D. Achkir

et al.

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Cited by 6 publications

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“…Our investigation of the alloys gives an unambiguous assignment of the spectral features in this region, important for the analysis of the charge dynamics in these salts. BEDT-TTF) 2 Cu[N(CN) 2 ]Br 0.5 Cl 0.5 is the only mixed compound which has previously been investigated by infrared spectroscopy, 19,23,24,25,26 but only in the mid-infrared range.…”

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confidence: 99%

Bandwidth-controlled Mott transition inκ−(BEDT−TTF)2Cu[N(C<

et al. 2007

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Infrared reflection measurements of the half-filled two-dimensional organic conductors κ-(BEDT-TTF)2Cu[N(CN)2]BrxCl1−x were performed as a function of temperature (5 K < T < 300 K) and Br-substitution (x = 0%, 40%, 73%, 85%, and 90%) in order to study the metal-insulator transition. We can distinguish absorption processes due to itinerant and localized charge carriers. The broad mid-infrared absorption has two contributions: transitions between the two Hubbard bands and intradimer excitations from the charges localized on the (BEDT-TTF)2 dimer. Since the latter couple to intramolecular vibrations of BEDT-TTF, the analysis of both electronic and vibrational features provides a tool to disentangle these contributions and to follow their temperature and electronic-correlations dependence. Calculations based on the cluster model support our interpretation.

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confidence: 99%

Bandwidth-controlled Mott transition inκ−(BEDT−TTF)2Cu[N(C<

et al. 2007

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Raman and FTIR studies of phase transitions in the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Cl

et al. 1999

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Magnetic-field-induced surface quantum states in organic conductors

Krstovska

2020

Philosophical Magazine

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Raman and microwave surface impedance measurements in the organic superconductor κ-Et2Cu[N(CN)2]BrxCl1−x

Cited by 6 publications

References 13 publications

Bandwidth-controlled Mott transition inκ−(BEDT−TTF)2Cu[N(C<

Bandwidth-controlled Mott transition inκ−(BEDT−TTF)2Cu[N(C<

Raman and FTIR studies of phase transitions in the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Cl

Magnetic-field-induced surface quantum states in organic conductors

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