315 citations · 679 across the 19 of their papers we have counts for
8 papers · 1 filter
Robust antiferromagnetic spin waves across the metal-insulator transition in hole-doped BaMnAs
M. Ramazanoglu, A. Sapkota, Abhishek Pandey +8
BaMnAs is an antiferromagnetic insulator where a metal-insulator transition occurs with hole doping via the substitution of Ba with K. The metal-insulator transition ca…
Quantum phase transitions and decoupling of magnetic sublattices in the quasi-two-dimensional Ising magnet Co3V2O8 in a transverse magnetic field
K. Fritsch, G. Ehlers, K. C. Rule +4
The application of a magnetic field transverse to the easy axis, Ising direction in the quasi-two-dimensional Kagome staircase magnet, Co3V2O8, induces three quantum phase transiti…
Magnetic excitations and anomalous spin wave broadening in multiferroic FeV2O4
Qiang Zhang, Mehmet Ramazanoglu, Songxue Chi +3
We report on the different roles of two orbital-active Fe at the A site and V at the B site in the magnetic excitations and on the anomalous spin wave broadening in F…
Magnetic Order and Fluctuations in the Presence of Quenched Disorder in the Kagome Staircase System (Co(1-x)Mg(x))3V2O8
Katharina Fritsch, Zahra Yamani, Sung Chang +5
Co3V2O8 is an orthorhombic magnet in which S=3/2 magnetic moments reside on two crystallographically inequivalent Co2+ sites, which decorate a stacked, buckled version of the two d…
Temperature-dependent properties of the magnetic order in single-crystal BiFeO3
M. Ramazanoglu, W. Ratcliff, Y. J. Choi +3
We report neutron diffraction and magnetization studies of the magnetic order in multiferroic BiFeO3. In ferroelectric monodomain single crystals, there are three magnetic cycloida…
Coupling between magnon and ligand-field excitations in magnetoelectric Tb3Fe5O12 garnet
T. D. Kang, E. Standard, K. H. Ahn +7
The spectra of far-infrared transmission in Tb3Fe5O12 magnetoelectric single crystals have been studied in the range between 15 and 100 cm-1, in magnetic fields up to 10 T, and for…