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 2003Show all

8 papers · 1 filter

cond-mat2003

Magnetic and thermodynamic properties of RMnO (R = Pr, Nd)

J. Hemberger, M. Brando, R. Wehn +4

The ground state properties of the pure perovskite compounds PrMnO and NdMnO were investigated by magnetization, magnetic AC susceptibility and specific heat measurements.…

cond-mat.str-el2003★ 196 cited

Complex interplay of 3d and 4f magnetism in La:GdMnO3

J. Hemberger, S. Lobina, H. -A. Krug von Nidda +5

We report on structural, magnetic, electrical, and thermodynamic properties of Gd-doped LaMnO3 single crystals for Gd doping levels 0 <= x <= 1. At room temperature, for all doping…

cond-mat.mtrl-sci2003★ 72 cited

Dielectric behavior of Copper Tantalum Oxide

B. Renner, P. Lunkenheimer, M. Schetter +3

A thorough investigation of the dielectric properties of Cu2Ta4O12, a material crystallizing in a pseudo-cubic, perovskite-derived structure is presented. We measured the dielectri…

cond-mat.str-el2003★ 51 cited

Large and Small Polaron Excitations in La2/3(Sr/Ca)1/3MnO3 Films

Ch. Hartinger, F. Mayr, J. Deisenhofer +2

We present detailed optical measurements of the mid-infrared (MIR) excitations in thin films of La2/3Sr1/3MnO3 (LSMO) and La2/3Ca1/3MnO3 (LCMO) across the magnetic transition. The…

cond-mat.str-el2003★ 52 cited

Dielectric properties and dynamical conductivity of LaTiO3: From dc to optical frequencies

P. Lunkenheimer, T. Rudolf, J. Hemberger +4

We provide a complete and detailed characterization of the temperature-dependent response to ac electrical fields of LaTiO3, a Mott-Hubbard insulator close to the metal-insulator t…

cond-mat.supr-con2003★ 11 cited

Doping dependence of the gap anisotropy in LCCO studied by millimeter-wave spectroscopy

A. V. Pronin, A. Pimenov, A. Loidl +2

We measure the penetration depth of optimally doped and underdoped La2-xCexCuO4 in the millimeter frequency domain (4 - 7 cm-1) and for temperatures 2 K < T < 300 K. The penetratio…

cond-mat.str-el2003★ 29 cited

The Orbital Order Parameter in La0.95Sr0.05MnO3 probed by Electron Spin Resonance

J. Deisenhofer, B. I. Kochelaev, E. Shilova +3

The temperature dependence of the electron-spin resonance linewidth in La0.95Sr0.05MnO3 has been determined and analyzed in the paramagnetic regime across the orbital ordering tran…

cond-mat.str-el2003★ 81 cited

Evidence for Jahn-Teller distortions at the antiferromagnetic transition in LaTiO

J. Hemberger, H. -A. Krug von Nidda, V. Fritsch +8

LaTiO is known as Mott-insulator which orders antiferromagnetically at K. We report on results of thermal expansion and temperature dependent x-ray diffraction…