activity
19992020
most citedLattice collapse and quenching of magnetism in CaFe2As2 under pressure: A single crystal neutron and x-ray diffraction investigation

175 citations · 520 across the 15 of their papers we have counts for

collaborators

15 papers

cond-mat.str-el2020★ 5 cited

Noncollinear magnetic structure in U2Pd2In at high magnetic fields

K. Prokes, M. Bartkowiak, D. I. Gorbunov +3

We report an unexpected magnetic-field-driven magnetic structure in the 5f-electron Shastry- Sutherland system U2Pd2In. This phase develops at low temperatures from a noncollinear…

cond-mat.str-el2016★ 9 cited

Phase diagram of diluted Ising ferromagnet LiHoYF

P. Babkevich, N. Nikseresht, I. Kovacevic +8

We present a systematic study of the phase diagram of LiHoYF () Ising ferromagnets obtained from neutron scattering measurements and mean-field calculatio…

cond-mat.str-el2014★ 8 cited

Coexistence of different magnetic moments in CeRuSn probed by polarized neutrons

K. Prokes, S. Hartwig, A. Gukasov +4

We report on the spin densities in CeRuSn determined at elevated and at low temperatures using polarized neutron diffraction. At 285 K, where the CeRuSn crystal structure, commensu…

cond-mat.str-el2014★ 7 cited

Magnetic structures in the rich magnetic phase diagram of HoRhIn

Petr Čermák, Karel Prokeš, Bachir Ouladdiaf +3

The magnetic phase diagram of the tetragonal HoRhIn compound has similar features to many related systems, revealing a zero magnetic field AF1 and a field-induced AF2 phase…

cond-mat.str-el2014★ 12 cited

Valence modulations in CeRuSn

R. Feyerherm, E. Dudzik, K. Prokes +3

CeRuSn exhibits an extraordinary room temperature structure at 300~K with coexistence of two types of Ce ions, namely trivalent Ce and intermediate valent Ce, in…

cond-mat.str-el2014★ 22 cited

Fragile antiferromagnetism in the heavy-fermion compound YbBiPt

B. G. Ueland, A. Kreyssig, K. Prokeš +12

We report results from neutron scattering experiments on single crystals of YbBiPt that demonstrate antiferromagnetic order characterized by a propagation vector, =…

cond-mat.str-el2013★ 13 cited

Phase diagram with enhanced spin-glass region of mixed Ising / XY magnets LiHoErF

J. O. Piatek, B. Dalla Piazza, N. Nikseresht +8

We present the experimental phase diagram of LiHoErF, a dilution series of dipolar-coupled model magnets.The phase diagram was determined using a combination of AC…

cond-mat.str-el2011★ 66 cited

Dzyaloshinskii-Moriya interaction and spin re-orientation transition in the frustrated kagome lattice antiferromagnet

K. Matan, B. M. Bartlett, J. S. Helton +10

Magnetization, specific heat, and neutron scattering measurements were performed to study a magnetic transition in jarosite, a spin-5/2 kagome lattice antiferromagnet. When a magne…

cond-mat.supr-con2010★ 8 cited

Low magnetic field phase diagram of UCoGe

Jana Vejpravová-Poltierová, Jiří Pospíšil, Jan Prokleška +3

We propose an alternate scenario for the relation between ferromagnetism (FM) and superconductivity (SC) in UCoGe at ambient pressure. On the basis of neutron polarimetry measureme…

cond-mat.str-el2010★ 42 cited

Anomalous spin distribution in the superconducting ferromagnet UCoGe studied by polarized neutron diffraction

K. Prokes, A. de Visser, Y. K. Huang +2

We report a polarized neutron diffraction study conducted to reveal the nature of the weak ferromagnetic moment in the superconducting ferromagnet UCoGe. We find that the ordered m…

cond-mat.str-el2009★ 10 cited

Anisotropic magnetic field responses of ferroelectric polarization in a trigonal multiferroic CuFe1-xAlxO2 (x=0.015)

T. Nakajima, S. Mitsuda, S. Kanetsuki +9

We have investigated magnetic field dependences of a ferroelectric incommensurate-helimagnetic order in a trigonal magneto-electric (ME) multiferroic CuFe1-xAlxO2 with x=0.015, whi…

cond-mat.supr-con2009★ 47 cited

Evidence from neutron diffraction for superconductivity in the stabilized tetragonal phase of CaFe2As2 under uniaxial pressure

K. Prokes, A. Kreyssig, B. Ouladdiaf +7

CaFe2As2 single crystals under uniaxial pressure applied along the c axis exhibit the coexistence of several structural phases at low temperatures. We show that the room-temperatur…

cond-mat.str-el2009★ 61 cited

Magnetic field induced flop of cycloidal spin order in multiferroic TbMnO3: The magnetic structure of the P||a phase

N. Aliouane, K. Schmalzl, D. Senff +4

Using in-field single crystal neutron diffraction we have determined the magnetic structure of TbMnO3 in the high field P||a phase. We unambiguously establish that the ferroelectri…

cond-mat.supr-con2008★ 175 cited

Lattice collapse and quenching of magnetism in CaFe2As2 under pressure: A single crystal neutron and x-ray diffraction investigation

A. I. Goldman, A. Kreyssig, K. Prokes +15

Single crystal neutron and high-energy x-ray diffraction have identified the phase lines corresponding to transitions between the ambient-pressure tetragonal (T), the antiferromagn…

cond-mat1999★ 35 cited

Neutron scattering study of the field-induced soliton lattice in CuGeO

H. M. Ronnow, M. Enderle, D. F. McMorrow +7

CuGeO undergoes a transition from a spin-Peierls phase to an incommensurate phase at a critical field of T. In the high-field phase a lattice of solitons form…