Published December 17, 2012 | Version v1
Journal article Metadata-only

Neutron scattering study of Ag, Mg and Al substitution effects on the magnetic excitations in CuCrO2

Creators

  • 1. J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
  • 2. Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
  • 3. Department of Nano-Structures and Advanced Materials, Kagoshima University, Kagoshima 890-0065 (Japan)

Description

CuCrO2 is a quasi two-dimensional triangular-lattice antiferromagnet with S = 3/2. Recently, it was found that small amount of element substitution strongly affects magnetic and transport properties. In the present study, we studied magnetic excitations in powder samples of CuCrO2,Cu0.85Ag0.15CrO2,CuCr0.97Mg0.03CrO2 and CuCr0.85Al0.15O2 by inelastic neutron scattering using the chopper spectrometer AMATERAS at J-PARC. We observed a variety of the magnetic excitations induced by different types of the element substitutions, and they should be keys to understand the magnetic and transport properties.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/400/3/032034

Additional details

Identifiers

DOI
10.1088/1742-6596/400/3/032034;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
400
Journal Issue
3
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
26. international conference on low temperature physics
Acronym
LT26
Dates
10-17 Aug 2011
Place
Beijing (China)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44040118
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM COMPOUNDS; CHROMIUM OXIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; EXCITATION; INELASTIC SCATTERING; MAGNESIUM COMPOUNDS; NEUTRON DIFFRACTION; NEUTRON SPECTROMETERS; POWDERS; SILVER COMPOUNDS; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CHROMIUM COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; ELECTRICAL PROPERTIES; ENERGY-LEVEL TRANSITIONS; MEASURING INSTRUMENTS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; SPECTROMETERS; TRANSITION ELEMENT COMPOUNDS