activity
19982023
most citedMaterials with Colossal Dielectric Constant: Do They Exist?

921 citations · 10.1k across the 159 of their papers we have counts for

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Showing 2005Show all

12 papers · 1 filter

cond-mat.str-el2005★ 15 cited

Unconventional anisotropic superexchange in NaV2O5

M. V. Eremin, D. V. Zakharov, R. M. Eremina +5

The strong line broadening observed in electron spin resonance on NaVO is found to originate from an unusual type of the symmetric anisotropic exchange interaction with sim…

cond-mat.dis-nn2005★ 35 cited

Dielectric spectroscopy on aging glasses

P. Lunkenheimer, R. Wehn, A. Loidl

In the present work, we provide further evidence for the applicability of a modified stretched-exponential behavior, proposed recently for the description of aging-time dependent d…

cond-mat.str-el2005★ 136 cited

Negative Refraction in Ferromagnet/Superconductor Superlattices

A. Pimenov, P. P. Przyslupski, B. Dabrowski +1

Negative refraction, which reverses many fundamental aspects of classical optics, can be obtained in systems with negative magnetic permeability and negative dielectric permittivit…

cond-mat.str-el2005★ 43 cited

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…

cond-mat.str-el2005★ 15 cited

Phonon anomalies and charge dynamics in Fe_{1-x}Cu_{x}Cr_{2}S_{4} single crystals

T. Rudolf, K. Pucher, F. Mayr +5

A detailed investigation of phonon excitations and charge carrier dynamics in single crystals of Fe_{1-x}Cu_{x}Cr_{2}S_{4} (x = 0, 0.2, 0.4, 0.5) has been performed by using infrar…

cond-mat.str-el2005★ 58 cited

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…