Published August 1990 | Version v1
Journal article Metadata-only

Signature of twin planes in Moessbauer spectroscopy of cuprate superconductors

Creators

  • 1. Cincinnati Univ., OH (USA). Dept. of Electrical and Computer Engineering
  • 2. Cincinnati Univ., OH (USA). Dept. of Geology
  • 3. Cincinnati Univ., OH (USA). Dept. of Chemistry
  • 4. Cincinnati Univ., OH (USA). Dept. of Civil and Environmental Engineering
  • 5. Cincinnati Univ., OH (USA). Dept. of Physics

Description

One of the four quadrupole doublets (A,B,C, and D) observed in Moessbauer spectra of orthorhombic (Y or RE)1Ba2(Cu1-xFex)3O7-δ(δ ≅ 0) samples is identified with Fe dopant replacing a Cu site in twin planes. The site in question, labelled as D, is characterized by a quadrupole splitting ΔD in the range 1.6±0.1 mm/s. The D-site intensity is found to approach zero when the 1-2-3 material is driven tetragonal, either upon oxygen desorption, upon oxygen loading, or upon increasing the Fe-dopant concentration. (orig.)

Additional details

Additional titles

Augmented title (English)
YBaCuFeO

Publishing Information

Journal Title
Hyperfine Interactions
Journal Volume
62
Journal Issue
1/2
Series
Hyperfine Interact.
Journal Page Range
73-88
ISSN
0304-3843
CODEN
HYIND

Conference

Title
Symposium on hyperfine interactions and nuclear probes in conjunction with the 199. national meeting of the American Chemical Society.
Dates
12-13 Sep 1989.
Place
Miami Beach, FL (USA).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Switzerland
INIS RN
22033716
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; HIGH-TC SUPERCONDUCTORS; HYPERFINE STRUCTURE; IRON OXIDES; MOESSBAUER EFFECT; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; IRON COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Contract/Grant/Project number
Grant DMR-89-02836; CBT-88-08813