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Title: Magnetic and crystallographic properties of ZrM 2-δZn 20+δ (M=Cr–Cu)

Single crystals of the cubic Laves ternaries ZrM 2-δZn 20+δ (M=Mn, Fe, Co, Ni and Cu, 0 ≤ δ ≤ 1) have been synthesized in this paper using a self-flux method. The magnetic properties of these compounds were compared with structurally similar cubic binaries ZrM 2 (M=Mn, Fe, Co, Ni and Cu). A transition from local to itinerant moment magnetism was observed for M=Fe and M=Mn, while all other ternaries exhibit weakly para- or diamagnetic behavior. The local-to-itinerant crossover can be explained by a nearly two-fold increase of the M–M bond length d M–M in ZrM 2-δZn 20+δ compounds, as compared with the ZrM 2 binaries. Additionally, we report two new compounds in this series ZrCrZn 21 and ZrCu 2Zn 20. Finally, analysis of crystallographic and magnetic trends in these materials will aid in understanding of magnetism in general and 3d intermetallics in particular.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [2] ;  [1]
  1. Rice Univ., Houston, TX (United States)
  2. Univ. of Texas, Dallas, TX (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357; DMR-1506704; DMR-1063735; DMR-1360863
Type:
Accepted Manuscript
Journal Name:
Journal of Magnetism and Magnetic Materials
Additional Journal Information:
Journal Volume: 416; Journal ID: ISSN 0304-8853
Publisher:
Elsevier
Research Org:
Rice Univ., Houston, TX (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE; National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; magnetism; itinerant magnetism; transition metal; intermetallics; magnetic moment dilution; cubic Laves phases
OSTI Identifier:
1392294