Published April 2007 | Version v1
Journal article Metadata-only

Multipolar ordering in NpO2 probed by NMR

Creators

  • 1. Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki (Japan)

Description

We have initiated the first NMR measurements in the ordered state of NpO2. From the angular dependence of hyperfine fields at 17O nuclei, we have obtained clear evidence for the appearance of field-induced antiferro-octupolar as well as field-induced antiferro-dipolar moments below T0=26 K. The NMR studies provide definitive support for the proposed longitudinal triple-q antiferro-octupolar ordering model for NpO2. (author)

Additional details

Publishing Information

Journal Title
Kotai Butsuri
Journal Volume
42
Journal Issue
4
Journal Page Range
p. 241-252
ISSN
0454-4544

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
39013078
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETISM; CRYSTAL STRUCTURE; CRYSTAL-PHASE TRANSFORMATIONS; HYPERFINE STRUCTURE; KNIGHT SHIFT; MAGNETIC DIPOLE MOMENTS; NEPTUNIUM OXIDES; NUCLEAR MAGNETIC RESONANCE; OCTUPOLES; ORDER PARAMETERS; ORDER-DISORDER MODEL; OXYGEN 17; QUADRUPOLE MOMENTS; RESONANCE SCATTERING; SPIN-SPIN RELAXATION; TEMPERATURE DEPENDENCE
Descriptors DEC
ACTINIDE COMPOUNDS; CHALCOGENIDES; DIMENSIONLESS NUMBERS; DIPOLE MOMENTS; EVEN-ODD NUCLEI; INELASTIC SCATTERING; ISOTOPES; LIGHT NUCLEI; MAGNETIC MOMENTS; MAGNETIC RESONANCE; MAGNETISM; MATHEMATICAL MODELS; MULTIPOLES; NEPTUNIUM COMPOUNDS; NUCLEAR MODELS; NUCLEI; OXIDES; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; PHASE TRANSFORMATIONS; RELAXATION; RESONANCE; SCATTERING; STABLE ISOTOPES; TRANSURANIUM COMPOUNDS

Optional Information

Notes
42 refs., 12 figs., 1 tab.