82 citations · 239 across the 8 of their papers we have counts for
8 papers
Properties of the low-frequency phonon spectra of ferroelectric barium titanate-based heterostructures
E. D. Gor'kovaya, Yu. A. Tikhonov, V. I. Torgashev +7
Polarized Raman spectra of the epitaxial Ba0.5Sr0.5TiO3 film, bi-color BaTiO3/Ba0.5Sr0.5TiO3 superlattice, and tri-color BaTiO3/Ba0.5Sr0.5TiO3/SrTiO3 superlattice were studied in a…
Vibrational states of a water molecule in a nano-cavity of beryl crystal lattice
Elena S. Zhukova, Victor I. Torgashev, Boris P. Gorshunov +8
Low-energy excitations of a single water molecule are studied when confined within a nano-size cage formed by the ionic crystal lattice. Optical spectra are measured of manganese d…
Quantum Behavior of Water Molecules Confined to Nanocavities in Gemstone
Boris P. Gorshunov, Elena S. Zhukova, Victor I. Torgashev +7
When water is confined to nanocavities, its quantum-mechanical behavior can be revealed by terahertz spectroscopy. We place H2O molecules in the nanopores of a beryl crystal-lattic…
Observation of an inter-sublattice exchange magnon in CoCrO and analysis of magnetic ordering
D. Kamenskyi, H. Engelkamp, T. Fischer +9
We report on an investigation of optical properties of multiferroic CoCrO at terahertz frequencies in magnetic fields up to 30 T. Below the ferrimagnetic transition (94…
Boson peak in overdoped manganites La_{1-x}Ca_{x}MnO_{3}
B. Gorshunov, E. Zhukova, V. I. Torgashev +8
In the charge-ordered phase of strongly doped manganites LaCaMnO () absorption lines appear in the terahertz spectral range for commensurate values…
B-T phase diagram of CoCr2O4 in magnetic fields up to 14 T
A. V. Pronin, M. Uhlarz, R. Beyer +8
We have measured the magnetization and specific heat of multiferroic CoCr2O4 in magnetic fields up to 14 T. The high-field magnetization measurements indicate a new phase transitio…
Origin of Low-Energy Excitations in Charge-Ordered Manganites
E. Zhukova, B. Gorshunov, T. Zhang. +5
The low-energy excitations in the charge-ordered phase of polycrystalline La0.25Ca0.75MnO3 are explored by frequency-domain terahertz spectroscopy. In the frequency range from 4 cm…
Concentration phase diagram of Ba(x)Sr(1-x)TiO3 solid solutions
V. B. Shirokov, V. I. Torgashev, A. A. Bakirov +1
Method of derivation of phenomenological thermodynamic potential of solid solutions is proposed in which the interaction of the order parameters of constituents is introduced throu…