Zobrazeno 1 - 10
of 25
pro vyhledávání: '"H.A. Ludwig"'
Autor:
Walter H. Fietz, Kai Grube, Th. Wolf, U. Tutsch, B. Obst, H. Leibrock, R. Hauff, Marion Kläser, Peter Schweiss, K.P. Weiss, H. Wühl, S. I. Schlachter, H.A. Ludwig
Publikováno v:
Physica C: Superconductivity. :347-350
Investigations of specific heat and T c under pressure are presented for YBa 2 Cu 3 O x (Y123), NdBa 2 Cu 3 O x (Nd123) and Y 1−y Ca y Ba 2 Cu 3 O x (YCa123) for various oxygen contents. In Y123, at the maximum of the specific-heat jump ΔC/T c the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f4de8dea5136dab4a2596ca835063cd
https://doi.org/10.1016/s0921-4534(00)00508-6
https://doi.org/10.1016/s0921-4534(00)00508-6
Autor:
Frank W. Hornung, Sonja I. Schlachter, Walter H. Fietz, T. Wolf, Kai Grube, H.A. Ludwig, R. Quenzel
Publikováno v:
Journal of Low Temperature Physics. 105:1385-1390
The Variation of the transition temperature Tc of YBa2Cu3Ox with hydrostatic He-gas pressure depends on the oxygen content x. The pressure effect dTc/dp increases from small negative values at x=7 to dTc/dp=7.4 K/GPa at x=6.7. For oxygen contents bel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18d872b906794c2f34a330d2843c8f22
https://doi.org/10.1007/bf00753893
https://doi.org/10.1007/bf00753893
Autor:
Andreas Erb, F. Hornung, R. Quenzel, Sonja I. Schlachter, Kai Grube, Marion Kläser, German Müller-Vogt, H.A. Ludwig, Walter H. Fietz, T. Wolf
Publikováno v:
Physica C: Superconductivity. 270:258-266
The pressure effect on T c of polycrystalline and single crystalline YBa 2 Cu 3 O x investigated as a function of oxygen content x by ac-susceptibility measurements under helium pressure. In the overdoped region x > 6.93 the single crystals show a ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0065e09e859518a0f68c080ed7fb791b
https://doi.org/10.1016/s0921-4534(96)00480-7
https://doi.org/10.1016/s0921-4534(96)00480-7
Publikováno v:
Physica C: Superconductivity. 234:45-48
The pressure dependence of the lattice parameter a ( p ) of Rb 3 C 60 has been investigated at 300 K and pressures up to 6 GPa using a diamond anvil cell and angular dispersive X-ray scattering. Rb 3 C 60 shows an anomalous increase of the bulk modul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::512181b37ef7999ca213f3ac166bcd7d
https://doi.org/10.1016/0921-4534(94)90052-3
https://doi.org/10.1016/0921-4534(94)90052-3
Publikováno v:
Zeitschrift f�r Physik B Condensed Matter. 96:179-183
C60 has been investigated under pressure up to 13 GPa using angular dispersive X-ray scattering and a diamond anvil cell. The resolution of the experimental setup allows to examine the volume decrease dV/dp under pressure even for pressures of a tent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d269e8b0471c5e67d09fa5f760b12886
https://doi.org/10.1007/bf01313282
https://doi.org/10.1007/bf01313282
Publikováno v:
Physica C: Superconductivity. 214:371-376
The superconducting transition temperature Tc of polycrystalline YBa2Cu3O6.7 has been investigated under purely hydrostatic He-gas pressure. In a series of experiments, it has been shown that the degree of oxygen ordering depends on the applied press
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c21dc4557f7f3386fca343949df71d39
https://doi.org/10.1016/0921-4534(93)90840-m
https://doi.org/10.1016/0921-4534(93)90840-m
Publikováno v:
Physica C: Superconductivity. 197:113-122
A simple ionic model is applied to calculate the lattice parameters and the atomic positions of YBa2Cu3O6, YBa2Cu3O7 and YBa2Cu4O8 under hydrostatic an uniaxial pressures up to 50 GPa. After a correction of the ionic model to a reduced charge separat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2a654c32cb7925b7d67e776bce53334
https://doi.org/10.1016/0921-4534(92)90244-7
https://doi.org/10.1016/0921-4534(92)90244-7
Publikováno v:
Physica C: Superconductivity. 167:335-338
The lattice parameters of the high temperature superconductor (HTSc) Y1Ba2Cu4O8 with Tc=80 K have been investigated in a pressure range of 0 to 25 GPa and at temperatures between 30 and 301 K. The linear compressibility in the b-axis direction of 1.0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e962261734bbebb1058f35cbc95ba167
https://doi.org/10.1016/0921-4534(90)90351-e
https://doi.org/10.1016/0921-4534(90)90351-e
Publikováno v:
AIP Conference Proceedings.
A series of polycrystalline YBa2Cu3Ox samples with an oxygen content between x=6.53 and 6.93 has been investigated under purely hydrostatic He‐gas pressure. For oxygen‐deficient samples the resulting superconducting transition temperature Tc depe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4441cd0d4175ad5ac3d569de9b995d4
https://doi.org/10.1063/1.46430
https://doi.org/10.1063/1.46430
Publikováno v:
NATO ASI Series ISBN: 9781489924827
Many investigations of the elastic properties of high Tc superconductors (HTSC) have been performed under high pressure. For any type of HTSC the results of these investigations are widely spread. For example the bulk modulus of YBa2Cu3O7 varies betw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05dd2ac832a1485beb2c46043b0eb8e4
https://doi.org/10.1007/978-1-4899-2480-3_37
https://doi.org/10.1007/978-1-4899-2480-3_37
