66 citations · 278 across the 11 of their papers we have counts for
11 papers
Shaping the spectrum of terahertz photoconductive antenna by frequency-dependent impedance modulation
D. V. Lavrukhin, A. E. Yachmenev, A. Yu. Pavlov +8
In this paper, we report on an approach for shaping the spectra of THz pulse generation in photoconductive antennas (PCAs) by frequency-dependent impedance modulation. We introduce…
THz spectroscopy in the pseudo-Kagome system Cu3Bi(SeO3)2O2Br
Zhe Wang, M. Schmidt, Y. Goncharov +4
Terahertz (THz) transmission spectra have been measured as function of temperature and magnetic field on single crystals of Cu3Bi(SeO3)2O2Br. In the time-domain THz spectra without…
Ions in glass forming glycerol: Close correlation of alpha and fast beta relaxation
M. Köhler, P. Lunkenheimer, Y. Goncharov +1
We provide broadband dielectric loss spectra of glass-forming glycerol with varying additions of LiCl. The measurements covering frequencies up to 10 THz extend well into the regio…
Singlet-triplet excitations and high-field magnetization in CuTe2O5
Zhe Wang, M. Schmidt, Y. Goncharov +6
By measuring the THz electron spin resonance (ESR) transmission spectra and high-field magnetization on the spin-gapped system CuTeO, we identified the singlet-triplet exci…
Optical conductivity of superconducting Rb2Fe4Se5
A. Charnukha, J. Deisenhofer, D. Pröpper +8
We report the complex dielectric function of high-quality nearly-stoichiometric Rb2Fe4Se5 (RFS) single crystals with Tc=32 K determined by wide-band spectroscopic ellipsometry and…
Orbital fluctuations and orbital order below the Jahn-Teller transition in Sr3Cr2O8
Zhe Wang, M. Schmidt, A. Günther +10
We report on the magnetic and phononic excitation spectrum of Sr3Cr2O8 determined by THz and infrared (IR) spectroscopy, and electron spin resonance (ESR) measurements across the J…
High-frequency dynamics of type-B glass formers investigated by broadband dielectric spectroscopy
S. Kastner, M. Köhler, Y. Goncharov +2
We present the results of broadband dielectric spectroscopy on two glass formers with strong Johari-Goldstein beta-relaxations. In addition to the alpha- and beta-relaxation dynami…
Terahertz conductivity of Si and of Ge/Si(001) heterostructures with quantum dots
E. S. Zhukova, B. P. Gorshunov, A. S. Prokhorov +7
With an MBE technique, a Si/Ge heterostructures are prepared containing layers of nanostructured Ge with quantum dots of size of several nanometers. The effective conductivity of t…
Glassy dynamics in mono-, di-, and tri-propylene glycol: From the alpha- to the fast beta-relaxation
M. Köhler, P. Lunkenheimer, Y. Goncharov +2
We present a thorough characterization of the glassy dynamics of three propylene glycols (mono-, di- and trimer) by broadband dielectric spectroscopy. By covering a frequency range…
Scaling of THz-conductivity at metal-insulator transition in doped manganites
A. Pimenov, M. Biberacher, D. Ivannikov +4
Magnetic field and temperature dependence of the Terahertz conductivity and permittivity of the colossal magnetoresistance manganite Pr_{0.65}Ca_{0.28}Sr_{0.07}MnO_3 (PCSMO) is inv…
Universal relationship between the penetration depth and the normal-state conductivity in YBaCuO
A. Pimenov, A. Loidl, B. Schey +5
The absolute values of the conductivity in the normal state sigma_n and of the low temperature penetration depths lambda(0) were measured for a number of different samples of the Y…