Published December 1997
| Version v1
Journal article
Non-relaxational critical current density measurement of epitaxial YBa2Cu3O7-δ thin films by using an improved a.c. magnetization
- 1. Department of Electronic Science and Engineering, Nanjing University, Nanjing (China)
- 2. Department of Physics, Nanjing University, Nanjing (China)
Description
Non-relaxational magnetic hysteresis loops of YBa2Cu3O7-δ (YBCO) thin films have been measured by an improved a.c. magnetization measurement with a.c. external field amplitude up to 1000 Oe and frequency range from 30 Hz-10 kHz at 77 K. Above a certain frequency (∼ 1000 Hz), the width of the magnetization hysteresis loop does not change with frequency, indicating that the magnetization can maintain a saturated state, namely the critical state. Experiments show that the critical current density deduced from the non-relaxational magnetic hysteresis loops is quite close to the value obtained by the four-probe measurement. (author)
Additional details
Publishing Information
- Journal Title
- Superconductor Science and Technology (Online)
- Journal Volume
- 10
- Journal Issue
- 12
- Journal Page Range
- p. 955-958
- ISSN
- 1361-6668
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43067082
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; COPPER OXIDES; CUPRATES; HIGH-TC SUPERCONDUCTORS; MAGNETIZATION; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; THIN FILMS; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; FILMS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS; YTTRIUM COMPOUNDS
Optional Information
- Notes
- Refs; This record replaces 31040361