Published November 2006 | Version v1
Journal article Metadata-only

Characteristic metamagnetic transitions in NpRhGa5 and UPtGa5

Creators

  • 1. Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
  • 2. Institute of Material Research, Tohoku University, Oarai, Ibaraki 311-1313 (Japan)
  • 3. Advanced Science and Research Centerer, JAEA, Tokai, Ibaraki 319-1195 (Japan)
  • 4. Institite of Solid State Physics, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8581 (Japan)
  • 5. Center for Quantum Science and Technology under Extreme Conditions, Osaka University, Osaka 560-8531 (Japan)

Description

We measured the high-field magnetization up to 55 T and constructed a magnetic phase diagram for a transuranium antiferromagnet NpRhGa5 with the tetragonal structure. The magnetization at 4.2 K for an easy-axis H//[100] indicates a metamagnetic transition with a sharp step at Hc = 26 T and saturates above Hs = 38 T, reaching 0.43 μB/Np at Hs. On the other hand, the magnetization saturates at Hs = 28 T for a hard-axis H//[001], reaching 0.44 μB/Np at Hs. The magnetization indicated that the magnetic moment reduces from 0.96 μB/Np at zero field to 0.44 μB/Np at the saturation field as a function of magnetic field. These experimental results in NpRhGa5 are compared with the simple magnetism in UPtGa5with the similar antiferromagnetic structure

Additional details

Identifiers

DOI
10.1088/1742-6596/51/1/051;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
51
Journal Issue
1
Journal Page Range
p. 227-230
ISSN
1742-6596

Conference

Title
Yamada conference LX on research in high magnetic fields
Acronym
RHMF2006
Dates
16-19 Aug 2006
Place
Sendai (Japan)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38072990
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANTIFERROMAGNETISM; GALLIUM; INTERMETALLIC COMPOUNDS; MAGNETIC FIELDS; MAGNETIC MOMENTS; MAGNETIZATION; NEPTUNIUM; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; PLATINUM; RHODIUM; TETRAGONAL LATTICES; URANIUM
Descriptors DEC
ACTINIDES; ALLOYS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIAGRAMS; ELEMENTS; INFORMATION; MAGNETISM; METALS; PLATINUM METALS; REFRACTORY METALS; TRANSITION ELEMENTS; TRANSURANIUM ELEMENTS