130 citations · 483 across the 12 of their papers we have counts for
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Lattice dynamics and electronic transitions in a structurally-complex layered copper borate Cu(BO)
A. D. Molchanova, M. A. Prosnikov, R. M. Dubrovin +5
Copper borate Cu(BO) is a complex compound with a layered crystallographic structure in which the Jahn-Teller active and magnetic copper Cu ions occupy sixteen n…
Bifurcations observed in the spectra of coupled electron-phonon modes in multiferroic subjected to a magnetic field
K. N. Boldyrev, T. N. Stanislavchuk, A. A. Sirenko +3
We report on bifurcations effect mediated by the electron-phonon coupling in a concentrated rare-earth-containing antiferromagnet, observed in the spectra of coupled -electron-…
Luminescent Ge-related centre in high-pressure synthesized diamond
E. A. Ekimov, S. G. Lyapin, K. N. Boldyrev +5
We report on the high-pressure synthesis of novel nano- and microcrystalline high-quality diamonds with luminescent Ge-related centers. Observation of the four-line fine structure…
Lattice dynamics and a magnetic-structural phase transition in the nickel orthoborate
R. V. Pisarev, M. A. Prosnikov, V. Yu. Davydov +7
Nickel orthoborate having a complex orthorhombic structure (#58, Z=2) of the kotoite type is known for quite a long time as an antiferromagnetic mate…
Antiferromagnetic dichroism and Davydov splitting of 3d-excitons in a complex multisublattice magnetoelectric CuB2O4
K. N. Boldyrev, R. V. Pisarev, L. N. Bezmaternykh +1
The space and time symmetry breaking at magnetic phase transitions in multiferroics results in a number of strongly pronounced optical effects. Our high-resolution spectroscopic st…
Splitting of a nondegenerate phonon mode in PrFe3(BO3)4: 4f crystal-field level between TO and LO phonon frequencies
K. N. Boldyrev, T. N. Stanislavchuk, A. A. Sirenko +2
A new effect originating from the crystal-field-excitation - phonon coupling was observed (in the far infrared spectra of a multiferroic PrFe3(BO3)4). The reststrahlen band corresp…