Published April 1, 2015 | Version v1
Journal article Metadata-only

Ferro- and antiferro-magnetism in (Np, Pu)BC

Creators

  • 1. Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk (Poland)
  • 2. European Commission, Joint Research Centre (JRC), Institute for Transuranium Elements (ITU), Postfach 2340, 76125 Karlsruhe (Germany)
  • 3. Institute of Physics, ASCR, Na Slovance 2, CZ-18221 Prague (Czech Republic)
  • 4. Institute for Physical Chemistry, University Vienna, Währingerstrasse 42, A-1090 Wien (Austria)

Description

Two new transuranium metal boron carbides, NpBC and PuBC, have been synthesized. Rietveld refinements of powder XRD patterns of (Np,Pu)BC confirmed in both cases isotypism with the structure type of UBC. Temperature dependent magnetic susceptibility data reveal antiferromagnetic ordering for PuBC below TN = 44 K, whereas ferromagnetic ordering was found for NpBC below TC = 61 K. Heat capacity measurements prove the bulk character of the observed magnetic transition for both compounds. The total energy electronic band structure calculations support formation of the ferromagnetic ground state for NpBC and the antiferromagnetic ground state for PuBC

Additional details

Identifiers

DOI
10.1063/1.4913564;

Publishing Information

Journal Title
APL materials
Journal Volume
3
Journal Issue
4
Journal Page Range
p. 041803-041803.9
ISSN
2166-532X
CODEN
AMPADS

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46121174
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANTIFERROMAGNETISM; BORON CARBIDES; ELECTRONIC STRUCTURE; FERROMAGNETISM; GROUND STATES; MAGNETIC SUSCEPTIBILITY; NEPTUNIUM COMPOUNDS; PLUTONIUM COMPOUNDS; POWDERS; SPECIFIC HEAT; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION
Descriptors DEC
ACTINIDE COMPOUNDS; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; ENERGY LEVELS; MAGNETIC PROPERTIES; MAGNETISM; PHYSICAL PROPERTIES; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSURANIUM COMPOUNDS

Optional Information

Notes
(c) 2015 Author(s)