Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Roland Hord"'
Publikováno v:
Journal of Solid State Chemistry. 204:91-94
The enthalpies of transition among the T{sup x}, T′, and T–La{sub 2}CuO{sub 4} phases are obtained from a combination of differential scanning calorimetry, high temperature oxide melt solution calorimetry, and transposed temperature drop calorime
Autor:
Gerhard Cordier, G. Pascua, Alexander Buckow, Hubertus Luetkens, Kathrin Hofmann, Barbara Albert, Lambert Alff, Roland Hord
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 637:1114-1117
Through low-temperature synthesis in CsOH flux, lanthanum cuprate La2CuO4 can be obtained in a metastable form, the so-called T′ modification (tetragonal, I4/mmm, no. 139, a = 400.95(2) pm, c = 1254.08(7) pm). When heated, this T′ phase transform
Autor:
Barbara Albert, G. Pascua, Alexander Buckow, Hubertus Luetkens, Kathrin Hofmann, Gerhard Cordier, Lambert Alff, Roland Hord
Publikováno v:
ChemInform. 42
Metastable T′ La2CuO4 (tetragonal, space group I4/mmm) is obtained from a stoichiometric mixture of CuO and La2O3 in a CsOH flux at 653 K (24 h).
Autor:
G. Pascua, Lambert Alff, Yoshiharu Krockenberger, Jose Kurian, Klaus Hofmann, Barbara Albert, Andreas Suter, Roland Hord, H. Maeter, Hubertus Luetkens, Hans-Henning Klauss, Alexander Buckow, Vladimir Pomjakushin
Publikováno v:
Physical Review B. 82
We synthesized crystalline bulk samples of lanthanum cuprate in the metastable ${T}^{\ensuremath{'}}$ phase using cesium hydroxide flux. Its crystal structure was determined as space group $I4/mmm$, no. 139, $a=401.02\text{ }\text{pm}$, $c=1252.66\te
Autor:
Gerhard Cordier, Barbara Albert, Manfred Reehuis, G. Pascua, J. Kurian, V. Pomjakushin, Roland Hord, Lambert Alff, Kathrin Hofmann, Hubertus Luetkens
Publikováno v:
Superconductor Science and Technology. 26:105026
We have investigated the oxygen stoichiometry of low-temperature synthesized metastable T'-La2CuO4 bulk samples by neutron scattering. T'-La2CuO4 is the parent compound of electron-doped high-temperature superconductors that is chemically closest to
Autor:
Lambert Alff, Katharina Weber, Marco Günther, G. Pascua, Alexander Buckow, Hans-Henning Klauss, Hubertus Luetkens, Barbara Albert, Roland Hord
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 638:1613-1613