196 citations · 370 across the 8 of their papers we have counts for
8 papers
High-resolution structure studies and magnetoelectric coupling of relaxor multiferroic Pb(FeNb)O
Hasung Sim, Darren C. Peets, Sanghyun Lee +6
Pb(FeNb)O (PFN), one of the few relaxor multiferroic systems, has a -type antiferromagnetic transition at = 143 K and a ferroelectric transition at $T_…
Spectral origin of the colossal magnetodielectric effect in multiferroic DyMn2O5
A. B. Sushkov, Ch. Kant, M. Schiebl +8
The origin of the colossal magnetodielectric effect in DyMn2O5 [1] has been an outstanding question in multiferroics. Here, we report the activation of the electric dipole mode at…
Coexisting order and disorder hidden in a quasi-two-dimensional frustrated magnet
K. Iida, S. -H. Lee, S. -W. Cheong
Frustrated magnetic interactions in a quasi-two-dimensional [111] slab of pyrochlore lattice were studied. For uniform nearest neighbor (NN) interactions, we show that the complex…
Spin-lattice order in frustrated ZnCr2O4
S. Ji, S. -H. Lee, C. Broholm +4
Using synchrotron X-rays and neutron diffraction we disentangle spin-lattice order in highly frustrated ZnCrO where magnetic chromium ions occupy the vertices of regular te…
Spin phonon coupling in frustrated magnet CdCrO
R. Valdés Aguilar, A. B. Sushkov, Y. J. Choi +2
The infrared phonon spectrum of the spinel CdCr2O4 is measured as a function temperature from 6 K to 300K. The triply degenerate Cr phonons soften in the paramagnetic phase as temp…
Neel to Spin-Glass-like Phase Transition versus Dilution in Geometrically Frustrated ZnCr_{2-2x}Ga_{2x}O_4
S. -H. Lee, W. Ratcliff, Q. Huang +2
ZnCr2O4 undergoes a first order spin-Peierls-like phase transition at 12.5 K from a cubic spin liquid phase to a tetragonal Neel state. Using powder diffraction and single crystal…