208 citations · 852 across the 19 of their papers we have counts for
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Switching the Ferroelectric Polarization by External Magnetic Fields in the Spin = 1/2 Chain Cuprate LiCuVO4
F. Schrettle, S. Krohns, P. Lunkenheimer +5
We present a detailed study of complex dielectric constant and ferroelectric polarization in multiferroic LiCuVO4 as function of temperature and external magnetic field. In zero ex…
Broadband dielectric response of CaCu3Ti4O12: From dc to the electronic transition regime
Ch. Kant, T. Rudolf, F. Mayr +4
We report on phonon properties and electronic transitions in CaCu3Ti4O12, a material which reveals a colossal dielectric constant at room temperature without any ferroelectric tran…
Polar phonons and spin-phonon coupling in HgCr2S4 and CdCr2S4
T. Rudolf, Ch. Kant, F. Mayr +3
Polar phonons of HgCr2S4 and CdCr2S4 are studied by far-infrared spectroscopy as a function of temperature and external magnetic field. Eigenfrequencies, damping constants, effecti…
Magnetic-order induced phonon splitting in MnO from far-infrared spectroscopy
T. Rudolf, Ch. Kant, F. Mayr +1
Detailed far-infrared spectra of the optical phonons are reported for antiferromagnetic MnO. Eigenfrequencies, phonon damping and effective plasma frequencies are studied as a func…
Single-ion anisotropy in the gadolinium pyrochlores studied by an electron paramagnetic resonance
V. N. Glazkov, M. E. Zhitomirsky, A. I. Smirnov +4
The electron paramagnetic resonance is used to measure the single-ion anisotropy of Gd3+ ions in the pyrochlore structure of (Y{1-x}Gdx)2Ti2O7. A rather strong easy-plane type anis…
Relaxation dynamics and colossal magnetocapacitive effect in CdCr2S4
P. Lunkenheimer, R. Fichtl, J. Hemberger +2
A thorough investigation of the relaxational dynamics in the recently discovered multiferroic CdCr2S4 showing a colossal magnetocapacitive effect has been performed. Broadband diel…