Published February 1, 2013 | Version v1
Journal article Metadata-only

Angular dependent 75As NMR study of the electric field gradient in CaFe2As2

Creators

  • 1. Department of Physics, University of California, Davis, CA 95616 (United States)

Description

The electric field gradient (EFG) at the As nuclei in the BaFe2As2 and SrFe2As2 iron arsenide compounds becomes axially asymmetric in the low temperature orthorhombic phase, but little has been reported about the EFG in the CaFe2As2 analog. We present As nuclear magnetic resonance (NMR) spectra as a function of orientation in this phase and extract the EFG tensor. The EFG asymmetry is significantly less in this material, which is a result of the unusually strong c-axis hybridization. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0953-2048/26/2/025012

Additional details

Identifiers

DOI
10.1088/0953-2048/26/2/025012;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
26
Journal Issue
2
Journal Page Range
[5 p.]
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44026807
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM COMPOUNDS; CALCIUM COMPOUNDS; ELECTRIC FIELDS; IRON ARSENIDES; NMR SPECTRA; NUCLEAR MAGNETIC RESONANCE; ORIENTATION; ORTHORHOMBIC LATTICES; STRONTIUM COMPOUNDS; TENSORS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; IRON COMPOUNDS; MAGNETIC RESONANCE; PNICTIDES; RESONANCE; SPECTRA; TRANSITION ELEMENT COMPOUNDS