Naslov
Terahertz BWO spectroscopy of conductors and superconductors

Autori
Gorshunov, Boris P ; Volkov, A. A. ; Prokhorov, A. S. ; Spektor, I. E. ; Akimitsu, J. ; Dressel, Martin ; Nieuwenhuys, G. J. ; Tomić, Silvia ; Uchida S.

Izvornik
Quantum Electronics (1063-7818) 37 (2007), 10; 916-923

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Terahertz spectroscopy; dielectric spectroscopy; superconductors; dielectrics

Sažetak
Methods for direct (without the use of the Kramers ë Kronig relations) measuring the dielectric response (dynamic conductivity and permittivity) spectra of dielectrics, conductors, and superconductors in the terahertz frequency range (0.03 ë 1.5 THz) are described. The methods are realised by using BWO (backward-wave oscillator) spectrometers developed at the A.M. Prokhorov General Physics Institute, RAS. Dielectric measurements can be performed at temperatures from 2 to 1000 K in magnetic éelds up to 8 T. The dielectric response spectra are investigated for a number of materials with properties determined by electron correla- tion effects: superconductors, one-dimensional conductors, heavy fermion systems, spin-ladder cuprates, and spin glasses.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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