Published April 8, 2009 | Version v1
Journal article Metadata-only

Superconductivity at 56 K in samarium-doped SrFeAsF

Creators

  • 1. Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)
  • 2. Hefei National Laboratory for Physical Science at Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (China)

Description

We synthesized the samples Sr1-xSmxFFeAs with a ZrCuSiAs-type structure. These samples were characterized by resistivity and susceptibility. It is found that substitution of rare earth metal for alkaline earth metal in this system suppresses the anomaly in resistivity and induces superconductivity. Superconductivity at 56 K in nominal composition Sr0.5Sm0.5FFeAs is realized, indicating that the superconducting transition temperatures in the iron arsenide fluorides can reach as high as that in oxypnictides with the same structure. (fast track communication)

Availability note (English)

Available from http://dx.doi.org/10.1088/0953-8984/21/14/142203

Additional details

Identifiers

DOI
10.1088/0953-8984/21/14/142203;
PII
S0953-8984(09)99244-X;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
21
Journal Issue
14
Journal Page Range
[3 p.]
ISSN
0953-8984
CODEN
JCOMEL

Conference

Title
International conference on nanoscience and nanotechnology
Dates
25-29 Feb 2008
Place
Melbourne (Australia)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41012544
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALKALINE EARTH METALS; ARSENIC COMPOUNDS; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; FLUORIDES; FLUORINE COMPOUNDS; HIGH-TC SUPERCONDUCTORS; IRON ARSENIDES; IRON COMPOUNDS; MAGNETIC SUSCEPTIBILITY; RARE EARTH COMPOUNDS; SAMARIUM ADDITIONS; STRONTIUM COMPOUNDS; TEMPERATURE RANGE 0013-0065 K; TRANSITION TEMPERATURE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; ARSENIC COMPOUNDS; ARSENIDES; ELECTRICAL PROPERTIES; ELEMENTS; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IRON COMPOUNDS; MAGNETIC PROPERTIES; MATERIALS; METALS; PHYSICAL PROPERTIES; PNICTIDES; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; SAMARIUM ALLOYS; SUPERCONDUCTORS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS