Radio-frequency acoustic powder echoes in niobium, observation of both echoes in superconducting and normal states

Authors
Nishihara, H Oguro, I Hayashi, K
Citation
H. Nishihara et al., Radio-frequency acoustic powder echoes in niobium, observation of both echoes in superconducting and normal states, PHYSICA C, 318, 1999, pp. 460-463
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
318
Year of publication
1999
Pages
460 - 463
Database
ISI
SICI code
0921-4534(199905)318:<460:RAPEIN>2.0.ZU;2-P
Abstract
Field dependence of intensity of radio-frequency acoustic powder echoes (ph onon echoes) is studied for powdered samples of niobium at low temperatures . Both echoes inherent to the superconducting state of niobium and echoes i n the normal state are successively observed with increasing applied field across the critical field H-C2, proving the validity of our model presented before. (C) 1999 Elsevier Science B.V. All rights reserved.