Antiferromagnetic order in uranium nickel(0.39) rhodium (0.61) aluminum.

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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 ... continued below

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El-Khatib, S.; Alsmadi, A. K. (Abdel Khaleq); Nakotte, H. (Heinrich); Andreev, A.V. (A.V.) & Lacerda, A. H. (Alex H.) January 1, 2003.

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Description

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.

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[3] p.

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  • Submitted to: APS March Meeting, March 3-7, 2003, Austin, Texas

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  • Report No.: LA-UR-03-0305
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976508
  • Archival Resource Key: ark:/67531/metadc931988

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  • January 1, 2003

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 2:53 p.m.

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El-Khatib, S.; Alsmadi, A. K. (Abdel Khaleq); Nakotte, H. (Heinrich); Andreev, A.V. (A.V.) & Lacerda, A. H. (Alex H.). Antiferromagnetic order in uranium nickel(0.39) rhodium (0.61) aluminum., article, January 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc931988/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.