Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Helga Passing"'
Autor:
G. Marbach, Helga Passing, S. Ewert, Christoph Hünnekes, Peter Lemmens, Albert Comberg, Philip Fröning
Publikováno v:
Journal of the Less Common Metals. :1129-1135
Sound velocity and attenuation measurements were performed on polycrystalline samples of the stoichiometry YBa2Cu3Ox and (Y1 − yPry)Ba2Cu3O7. The values of the bulk modulus and the Poisson ratio and their temperature dependences are affected by oxy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0c80ad5f8c6edb15742b39627c694e
https://doi.org/10.1016/0022-5088(90)90527-q
https://doi.org/10.1016/0022-5088(90)90527-q
Publikováno v:
Physica B: Condensed Matter. :1275-1276
Measurements of the transverse sound attenuation and velocity in ceramic YBa2Cu3Ox superconductors were performed with and without a magnetic field. We observe a pronounced peak in the field-induced attenuation and an increase of the velocity at low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12ed6222ee60de9d5199c47dcf4c0c85
https://doi.org/10.1016/s0921-4526(09)80223-8
https://doi.org/10.1016/s0921-4526(09)80223-8
Autor:
J. Wynants, S. Ewert, Simon Guo, Peter Lemmens, Albert Comberg, Helga Passing, Dorothee Bonnenberg, G. Arlt, F. Stellmach, H. Kliem
Publikováno v:
Solid State Communications. 64:1153-1156
Ultrasonic velocity and attenuation measurements down to 4.2 K were performed on well characterized ceramic superconducting YBa 2 Cu 3 O 7-δ samples of different microstructure. In fine grained samples of high volume density and excellent supercondu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebbb5e82cc69260fa07c44b1e087f846
https://doi.org/10.1016/0038-1098(87)90609-0
https://doi.org/10.1016/0038-1098(87)90609-0
Publikováno v:
Physica C: Superconductivity and its Applications. :452-453
Longitudinal and transverse sound velocity and attenuation measurements as function of temperature and frequency have been carried out in well characterised ceramic YBa2Cu3Ox samples of different oxygen content but the same controlled microstructure.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eb048aedb364d5fe5098a3ff1b0c592
https://doi.org/10.1016/0921-4534(89)91101-5
https://doi.org/10.1016/0921-4534(89)91101-5
Autor:
Helga Passing, Peter Lemmens, G. Arlt, S. Ewert, G. Marbach, Frank Stellmach, Jochen Wynants, Simon Guo, Albert Comberg
Publikováno v:
Physica C: Superconductivity. :294-295
Investigations of elastic properties were performed on ceramic single-phase YBa 2 Cu 3 O 7−δ samples. The temperature dependence of the sound velocity and attenuation between 260 K and 4.2 K depends strongly on the microstructure of the samples. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc0c2fd8aff6d2dd7c57f088cbece626
https://doi.org/10.1016/0921-4534(88)90599-0
https://doi.org/10.1016/0921-4534(88)90599-0