Published June 9, 2010
| Version v1
Journal article
Superconductivity above 33 K in (Ca1-xNax)Fe2As2
Description
We report the synthesis of (Ca0.33Na0.66)Fe2As2 showing a superconducting transition with Tc above 33 K. Both dc magnetic susceptibility or specific heat measurements indicated the bulk superconductivity nature of the sample. We also have successfully grown single crystals of the (Ca0.33Na0.66)Fe2As2 superconductors. The single crystals exhibit sharp superconducting transitions with Tc above 33 K. The effects of magnetic field on the superconducting transitions are studied, giving rise to high upper critical fields with Hc2c∼85 T and Hc2ab∼172 T, respectively. The anisotropy parameter was calculated to be around 2. (fast track communication)
Availability note (English)
Available from http://dx.doi.org/10.1088/0953-8984/22/22/222203Additional details
Identifiers
- DOI
- 10.1088/0953-8984/22/22/222203;
- PII
- S0953-8984(10)52143-X;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 22
- Journal Issue
- 22
- Journal Page Range
- [4 p.]
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42028157
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANISOTROPY; ARSENIC COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL FIELD; IRON COMPOUNDS; MAGNETIC SUSCEPTIBILITY; MONOCRYSTALS; SODIUM COMPOUNDS; SPECIFIC HEAT; SUPERCONDUCTIVITY; SUPERCONDUCTORS; SYNTHESIS; TEMPERATURE RANGE 0013-0065 K; TRANSITION TEMPERATURE
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETIC FIELDS; MAGNETIC PROPERTIES; PHYSICAL PROPERTIES; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS