Defect Production and Stoichiometry in A-15 Superconductors: Fid-Bau Portal

Fachinformationsdienst BAUdigital

Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik

Defect Production and Stoichiometry in A-15 Superconductors

Poate, J. M. / Dynes, R. C. / Testardi, L. R. / Hammond, R. H.

Abstract The dependence of Tc upon stoichiometry and 2 MeV 4He induced damage has been investigated in Nb3Ge, Nb3Sn, V3Si and V3Ge super-conducting thin films. Optimum values of Tc are obtained for Nb:Ge and Nb:Sn ratios throughout the range of 2.6:1 – 3:1 in 95% single phase A-15 films. This is inconsistent with anti-structure (anti-site) defects leading to great degradations in T. Similar Tc vs 4He dose plots are observed for all materials; at high doses Tc saturates at values of 3.5 K (Nb3Ge), 2.95 K (Nb3Sn), 2.2 K (V3Si) and 1.0 K (V3Ge). Defects introduced by the 4He bombardment produce Tc-resistance ratio correlations similar to that for as-grown films.

Zugriff

Zugriff prüfen

Verfügbarkeit in meiner Bibliothek prüfen

Bestellung bei Subito €

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren

Defect Production and Stoichiometry in A-15 Superconductors

Poate, J. M. / Dynes, R. C. / Testardi, L. R. / Hammond, R. H.

Abstract The dependence of Tc upon stoichiometry and 2 MeV 4He induced damage has been investigated in Nb3Ge, Nb3Sn, V3Si and V3Ge super-conducting thin films. Optimum values of Tc are obtained for Nb:Ge and Nb:Sn ratios throughout the range of 2.6:1 – 3:1 in 95% single phase A-15 films. This is inconsistent with anti-structure (anti-site) defects leading to great degradations in T. Similar Tc vs 4He dose plots are observed for all materials; at high doses Tc saturates at values of 3.5 K (Nb3Ge), 2.95 K (Nb3Sn), 2.2 K (V3Si) and 1.0 K (V3Ge). Defects introduced by the 4He bombardment produce Tc-resistance ratio correlations similar to that for as-grown films.

Defect Production and Stoichiometry in A-15 Superconductors

Poate, J. M. / Dynes, R. C. / Testardi, L. R. / Hammond, R. H.

Abstract The dependence of Tc upon stoichiometry and 2 MeV 4He induced damage has been investigated in Nb3Ge, Nb3Sn, V3Si and V3Ge super-conducting thin films. Optimum values of Tc are obtained for Nb:Ge and Nb:Sn ratios throughout the range of 2.6:1 – 3:1 in 95% single phase A-15 films. This is inconsistent with anti-structure (anti-site) defects leading to great degradations in T. Similar Tc vs 4He dose plots are observed for all materials; at high doses Tc saturates at values of 3.5 K (Nb3Ge), 2.95 K (Nb3Sn), 2.2 K (V3Si) and 1.0 K (V3Ge). Defects introduced by the 4He bombardment produce Tc-resistance ratio correlations similar to that for as-grown films.

Zugriff

Zugriff prüfen

Verfügbarkeit in meiner Bibliothek prüfen

Bestellung bei Subito €

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren

Dokumentinformationen

Titel:

Defect Production and Stoichiometry in A-15 Superconductors

Beteiligte:

Poate, J. M. (Autor:in) / Dynes, R. C. (Autor:in) / Testardi, L. R. (Autor:in) / Hammond, R. H. (Autor:in)

Erschienen in:

Superconductivity in d- and f-Band Metals ; 489-505

Erscheinungsdatum:

01.01.1976

Format / Umfang:

17 pages

ISBN:

978-1-4615-8797-2 , 978-1-4615-8795-8

DOI:

https://doi.org/10.1007/978-1-4615-8795-8_29

Medientyp:

Aufsatz/Kapitel (Buch)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Resistance Ratio , Defect Production , Collision Cascade , Neutron Damage , Antistructure Defect Physics , Strongly Correlated Systems, Superconductivity , Characterization and Evaluation of Materials

Ähnliche Titel

Transmission Electron Microscope Study of Defect Structures Accomodating Non-Stoichiometry in Rutile

Blanchin, M. G. | British Library Online Contents | 1998

Determination of native defect concentrations and deviation from stoichiometry in silicon carbide

Lilov, S. K. | British Library Online Contents | 1993

Structural Studies of Order, Disorder, and Stoichiometry in Some High Tc Nb-Base A-15 Superconductors

Cox, D. E. / Moehlecke, S. / Sweedler, A. R. et al. | Springer Verlag | 1976

Stoichiometry of Coagulation

Stumm, Werner / O'Melia, Charles R. | Wiley | 1968

Study of La~1~-~xMnO~3~-~ non-stoichiometry and defect structure using ESR and iodometry

Ippommatsu, M. / Otoshi, S. / Sasaki, H. et al. | British Library Online Contents | 1993