Magnetic phase diagrams of UNiGe
- Los Alamos National Lab., NM (United States)
- Univ. of Amsterdam (Netherlands). Van der Waals-Zeeman Inst.
- Univ. of Amsterdam (Netherlands). Van der Waals-Zeeman Institute; and others
UNiGe undergoes two magnetic transitions in zero field. Here, the magnetic diagrams of UNiGe for B {parallel} b and B {parallel} c are reported. We performed temperatures scans of the magnetization in static magnetic fields up to 19.5T applied along the b and c axes. For both orientations 3 magnetic phases have been identified in the B-T diagrams. We confirmed the previously reported phase boundaries for B {parallel} c, and in addition we determined the location of the phase boundaries for B {parallel} b. We discuss a possible relationship of the two zero-field antiferromagnetic phases (commensurate: T<42K; incommensurate: 42K<50K) and the field-induced phase, which, at low temperatures, occurs between 18 and 25T or 4 and 10T for B {parallel} b or B {parallel} c, respectively. Finally, we discuss the field dependence of the electronic contribution {gamma} to the specific heat for B {parallel}c up to 17.5T, and we find that its field dependence is similar to the one found in more itinerant uranium compounds.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States); Stichting voor Fundamenteel Onderzoek der Materie, Amsterdam (Netherlands)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 552768
- Report Number(s):
- LA-UR-97-3046; CONF-9708108-; ON: DE98000981; TRN: 98:008804
- Resource Relation:
- Conference: RHMF `97: 5. international symposium on research in high magnetic fields symposium, Sydney (Australia), 4-6 Aug 1997; Other Information: PBD: 1997
- Country of Publication:
- United States
- Language:
- English
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