Antiferromagnetic order in uranium nickel(0.39) rhodium (0.61) aluminum.
- Abdel Khaleq
- Heinrich
- A.V.
- Alex H.
As the archetype magnetic intermetallic compounds IJNiAI (antiferromagnet, TN = 19K) and URhAI (ferromagnet, TC = 27K) [1] ., iJNi0.39Rh0.61A1 crystallizes in the hexagonal ZrNiAI-type structure . UNi0 .39Rh0.61A1 undergoes antiferromagnetic (AF) at TN = 13K . Here, we report on resistance and magnetoresistance studies on single-crystalline UNi0 .39Rh0.61A1 in magnetic field up to 18T applied along and perpendicular to the c-axis. 20-Tesla National High Magnetic Field Laboratory (NHMFL) at Los Alamos has been used to investigate such magnetic properties . This compound is found to exhibit highly anisotropic properties with the easy magnetization axis along the c-axis . While for fields applied along c-axis, 3T completely suppresses the AF ordering, antiferromagnetism persists up to the highest field of 18T applied perpendicular to the c-axis, see Fig.(1) which shows R(ohm) vs B (T) . The results are discussed in terms of variation of the 5f-ligand hybridization compared to the one of its parent compounds.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 976508
- Report Number(s):
- LA-UR-03-0305; TRN: US201017%%656
- Resource Relation:
- Conference: Submitted to: APS March Meeting, March 3-7, 2003, Austin, Texas
- Country of Publication:
- United States
- Language:
- English
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