activity
20062025
most citedInfrared and THz studies of polar phonons and improper magnetodielectric effect in multiferroic BFO3 ceramics

264 citations · 801 across the 38 of their papers we have counts for

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14 papers · 1 filter

cond-mat.mtrl-sci2023★ 11 cited

Robust intralayer antiferromagnetism and tricriticality in a van der Waals compound: VBr3 case

Dávid Hovančík, Marie Kratochvílová, Tetiana Haidamak +10

We studied magnetic states and phase transitions in the van der Waals antiferromagnet VBr3 by specific heat and magnetization measurements of single crystals in high magnetic field…

cond-mat.mtrl-sci2021★ 21 cited

Magnetic anisotropy in van-der-Waals ferromagnet VI3

A. Koriki, M. Misek, J. Pospisil +8

A comprehensive study of magnetocrystalline anisotropy of a layered van-der-Waals ferromagnet VI3 was performed. We measured angular dependences of the torque and magnetization wit…

cond-mat.mtrl-sci2018

Pressure Evolution of Magnetism in URhGa

Martin Míšek, Petr Opletal, Vladimír Sechovský +4

In this paper, we report the results of an ambient and high pressure study of a 5f-electron ferromagnet URhGa. The work is focused on measurements of magnetic and thermodynamic pro…

cond-mat.mtrl-sci2017★ 1 cited

Electrical resistivity across the tricriticality in itinerant ferromagnet

Petr Opletal, Jan Prokleška, Jaroslav Valenta +1

We investigate the discontinuous ferromagnetic phase diagram near tricritical point in UCo 1-x Ru x Al compounds by electrical resistivity measurements. Separation of phases in UCo…

cond-mat.mtrl-sci2017★ 10 cited

Unusual ferroelectric and magnetic phases in multiferroic 2H-BaMnO ceramics

Stanislav Kamba, Dmitry Nuzhnyy, Maxim Savinov +16

The structural phase transition in hexagonal BaMnO occurring at =130 K was studied in ceramic samples using electron and X-ray diffraction, second harmonic generation as w…

cond-mat.mtrl-sci2016★ 13 cited

Pressure-induced quantum phase transition in the itinerant ferromagnet UCoGa

Martin Míšek, Jan Prokleška, Petr Opletal +4

In this paper, we report the results of a high pressure study of the itinerant 5f-electron ferromagnet UCoGa. The work is focused on probing the expected ferromagnet-to-paramagnet…

cond-mat.mtrl-sci2016★ 13 cited

Quantum ferromagnet in the proximity of the tricritical point

Petr Opletal, Jan Prokleška, Jaroslav Valenta +7

Echoes of quantum phase transitions (QPTs) at finite temperatures are theoretically and experimentally challenging and unexplored topics. Particularly in metallic quantum ferromagn…

cond-mat.mtrl-sci2016★ 30 cited

Electromagnon in the Z-type hexaferrite

Filip Kadlec, Christelle Kadlec, Jakub Vit +12

We studied experimentally the high-temperature magnetoelectric prepared as ceramics (x = 0, 0.2) and a single crystal (x = 0.5…

cond-mat.mtrl-sci2014★ 21 cited

Possible coupling between magnons and phonons in multiferroic CaMn7O12

Filip Kadlec, Veronica Goian, Christelle Kadlec +7

Spin and lattice dynamics of CaMn7O12 ceramics were investigated using infrared, THz and inelastic neutron scattering (INS) spectroscopies in the temperature range 2 to 590 K, and,…

cond-mat.mtrl-sci2013

Excellent magnetocaloric effect exhibited in the dense inorganic framework material Gd(OH)CO3

Yan-Cong Chen, Zhao-Sha Meng, Lei Qin +8

The excellent magnetocaloric effect of a dense inorganic framework, orthorhombic Gd(OH)CO3, is evaluated by isothermal magnetization and heat capacity measurements. The large -ΔSm,…

cond-mat.mtrl-sci2013★ 13 cited

Electromagnon in ferrimagnetic eps-Fe2O3 nanograin ceramics

Christelle Kadlec, Filip Kadlec, Veronica Goian +7

Electromagnons are known from multiferroics as spin waves excited by the electric component of electromagnetic radiation. We report the discovery of an excitation in the far-infrar…

cond-mat.mtrl-sci2012★ 4 cited

Magnetic and dielectric properties of multiferroic Eu0.5Ba0.25Sr0.25TiO3 ceramics

Veronica Goian, Stanislav Kamba, Premysl Vanek +3

Dielectric and magnetic properties of Eu0.5Ba0.25Sr0.25TiO3 are investigated between 10 K and 300 K in the frequency range from 10 Hz to 100 THz. A peak in permittivity revealed ne…

cond-mat.mtrl-sci2012

Polar phonon anomalies in single crystalline TbScO3

Stanislav Kamba, Veronica Goian, Dmitry Nuzhnyy +6

Polarized infrared reflectivity spectra of a (110)-oriented TbScO3 single crystal plate were measured down to 10 K. The number of observed polar phonons active along the crystallog…

cond-mat.mtrl-sci2006★ 264 cited

Infrared and THz studies of polar phonons and improper magnetodielectric effect in multiferroic BFO3 ceramics

S. Kamba, D. Nuzhnyy, M. Savinov +5

BFO3 ceramics were investigated by means of infrared reflectivity and time domain THz transmission spectroscopy at temperatures 20 - 950 K, and the magnetodielectric effect was stu…