Superconducting State Properties of CuBa2Ca3Cu4O10+δ.
Materials (Basel)
; 16(14)2023 Jul 20.
Article
em En
| MEDLINE
| ID: mdl-37512384
ABSTRACT
The superconducting state properties of the CuBa2Ca3Cu4O10+δ (Cu-1234) system, with a transition temperature as high as 117.5 K, were investigated. The ac magnetic susceptibility measurements confirmed a very sharp transition to the superconducting state. The upper critical field, Hc2, as high as 91 T, and the irreversibility field, Hirr, as high as 21 T at 77 K, were determined using dc SQUID magnetization measurements. The intragrain critical current density, jc, estimated from a magnetic hysteresis loop, is as high as 5 × 109 A/m2 in a self-generated magnetic field at 77 K. However, the intergrain critical current density in the studied material is smaller by four orders of magnitude due to very weak intergrain connections.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
País/Região como assunto:
Cuba
Idioma:
En
Revista:
Materials (Basel)
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Polônia