Zobrazeno 1 - 10
of 136
pro vyhledávání: '"G Czjzek"'
Autor:
Richard A. Webb, Patrick Fournier, S. Darzens, E. Maiser, G. Czjzek, Thirumalai Venkatesan, Pritiraj Mohanty, Christopher Lobb, R. L. Greene
Publikováno v:
Physical Review Letters. 81:4720-4723
Normal-state resistivity measurements at high fields and low temperatures in electron-doped ${\mathrm{Pr}}_{2\ensuremath{-}x}{\mathrm{Ce}}_{x}{\mathrm{CuO}}_{4}$ thin films reveal an insulator-metal crossover near a doping level $x\ensuremath{\approx
Autor:
Patrick Fournier, G. Czjzek, Thirumalai Venkatesan, Fernando M. Araújo-Moreira, R. L. Greene, E. Maiser, J.L. Peng
Publikováno v:
Physica C: Superconductivity. 297:15-22
High-quality epitaxial Pr 2− x Ce x CuO 4− y thin films were fabricated by pulsed laser deposition using N 2 O reactive gas. The deposition parameters for the films were optimized for each of the 11 investigated Ce concentrations. The optimized t
Autor:
T. Schreiner, R. Schäfer, J. L. Peng, E. Maiser, W. Mexner, G. Czjzek, Peter Adelmann, R. L. Greene
Publikováno v:
Physical Review B. 56:12961-12969
Low-energy magnetic excitations in ${\mathrm{Nd}}_{2\ensuremath{-}x}{\mathrm{Ce}}_{x}{\mathrm{CuO}}_{4}$ with $0l~xl~0.2$ have been investigated by measurements of the specific heat. For all Ce-doped samples $(xg~0.05),$ a linear term $\ensuremath{\g
Publikováno v:
Physical Review B. 55:R6145-R6148
We report ac susceptibility, electrical resistivity, and structural measurements on crystalline ${\mathrm{Pr}}_{2\mathrm{\ensuremath{-}}\mathrm{x}}$${\mathrm{Ce}}_{\mathrm{x}}$${\mathrm{CuO}}_{4\mathrm{\ensuremath{-}}\mathrm{y}}$ (PCCO) thin films pr
Publikováno v:
Hyperfine Interactions. 104:221-226
The magnetic correlations in Nd2-yCeyCuO4 have been studied by zero and longitudinal field μSR. Nd1.8Ce0.2CuO4 reveals a saturation of the muon relaxation rate below 0.5 K. Even down to 70 mK LF spectra evidence spin fluctuations in the dynamic regi
Publikováno v:
Physical Review B. 48:16040-16046
Complete replacement of Cu by Fe in R${\mathrm{Ba}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7}$ leads to R${\mathrm{Ba}}_{2}$${\mathrm{Fe}}_{3}$${\mathrm{O}}_{8}$ (R=Y and Eu). We investigated ${\mathrm{YBa}}_{2}$${\mathrm{Fe}}_{3}$${\mathrm{O}}_{8}$ a
Publikováno v:
Journal of Physics: Condensed Matter. 5:8651-8657
Lithium-borate glasses containing 0.1-10 mol% Gd2O3 have been studied by 155Gd Mossbauer spectroscopy. Isomer shifts near 0.6 mm s-1, independent of the Gd concentration, are in the range typical of ionic Gd compounds. The spectra are very well descr
Publikováno v:
Physical Review Letters. 71:2481-2484
The specific heat of ${\mathrm{Nd}}_{2\mathrm{\ensuremath{-}}\mathit{y}}$${\mathrm{Ce}}_{\mathit{y}}$${\mathrm{CuO}}_{4}$, 0\ensuremath{\le}y\ensuremath{\le}0.2, was measured between 35 mK and 10 K. A Schottky anomaly in ${\mathrm{Nd}}_{2}$${\mathrm{
Publikováno v:
Physical Review B. 48:407-410
Mixed compounds (Gd[sub 1[minus][ital x]R[ital x]])[sub 2]CuO[sub 4], [ital R]=Pr, Nd, Sm, and Eu, with [ital T][prime] structure, were studied by x-ray diffraction and by [sup 155]Gd Moessbauer spectroscopy. Structural parameters (unit cell volume,
Autor:
J. FINK, P. ADELMANN, V. BUNTAR, G. CZJZEK, R. HEID, W. KRAUSS, C. MEINGAST, M. MERKEL, C. POLITIS, ET AL. ET AL.
Publikováno v:
ChemInform. 24