Tricritical point of the -electron antiferromagnet driven by high magnetic fields
Journal Article
·
· Physical Review B
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Univ. of Maryland, College Park, MD (United States); National Institute of Science and Technology, Gaithersburg, MD (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- National Institute of Science and Technology, Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)
In pulsed magnetic fields up to 65 T and at temperatures below the Néel transition, our magnetization and magnetostriction measurements reveal a field-induced metamagneticlike transition that is suggestive of an antiferromagnetic to ferrimagnetic ordering. Our data also suggest a change in the nature of this metamagneticlike transition from second- to first-order-like near a tricritical point at Ttc ~ 145K and Hc ~ 52 T. At high fields for H > Hc we found a decreased magnetic moment roughly half of the moment determined by neutron powder diffraction. Lastly, we propose that the decreased moment and lack of saturation at high fields indicate the presence of a field-induced ferrimagnetic state above the tricritical point of the H-T phase diagram for USb2.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396; AC52-07NA27344
- OSTI ID:
- 1343719
- Alternate ID(s):
- OSTI ID: 1339182
OSTI ID: 1377774
- Report Number(s):
- LA-UR--16-28417; LLNL-JRNL-702128
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 1 Vol. 95; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Tricritical point from high-field magnetoelastic and metamagnetic effects in UN
Journal Article
·
Tue Jul 25 20:00:00 EDT 2017
· Scientific Reports
·
OSTI ID:1395024