Published September 1, 2011 | Version v1
Journal article Metadata-only

Magnetic structure of Er2Ti2O7

Creators

  • 1. School of Physics and Astronomy, Birmingham University, Edgbaston, Birmingham, B15 2TT (United Kingdom)

Description

We employ the previously published neutron-scattering experiments to suggest that Er2Ti2O7 has a broken-symmetry multiple-q state with tetragonal magnetic symmetry. The ordered moments do not appear to lie close to the crystal-field anticipated directions, and we suggest that the low-energy gapless mode, visible in specific-heat measurements, is not of the usual transverse isotropic Goldstone-mode type but is longitudinal and is associated with the internal transfer of magnetism between distinct magnetic Bragg spots.

Additional details

Identifiers

DOI
10.1103/PhysRevB.84.094427;
arXiv
arXiv:1103.2862v1;

Publishing Information

Journal Title
Physical Review. B, Condensed Matter and Materials Physics
Journal Volume
84
Journal Issue
9
Journal Page Range
p. 094427-094427.11
ISSN
1098-0121

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43074545
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRYSTAL FIELD; ERBIUM COMPOUNDS; MAGNETIC PROPERTIES; MAGNETISM; NEUTRON DIFFRACTION; SPECIFIC HEAT; SYMMETRY; SYMMETRY BREAKING; TITANATES
Descriptors DEC
COHERENT SCATTERING; DIFFRACTION; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; THERMODYNAMIC PROPERTIES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
(c) 2011 American Institute of Physics