Observation of Quasimagnetic Structures in Rare-Earth-Based Icosahedral Quasicrystals

Journal Article · Sun Jun 01 04:00:00 EDT 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.4637· OSTI ID:549673

Charrier, B; Schmitt, D ^[1]; Ouladdiaf, B ^[2]

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1. Laboratoire de Magnetisme Louis Neel, CNRS, BP 166, 38042 Grenoble Cedex 9 (France)
2. Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9 (France)

The first observation of long-range quasiperiodic antiferromagnetic structures in quasicrystals, namely the heavy rare-earth-based icosahedral R{sub 8}Mg{sub 42}Zn{sub 50} compounds (R=Tb , Dy, Ho, Er), is reported. This {ital quasimagnetic} ordering is characterized by the propagation vector {bold Q}=((1)/(4),0,0,0,0,0) in the six-dimensional notation. Simultaneously, broad magnetic peaks appear in the neutron diffraction patterns, characteristic of a short-range ordering. The coexistence of two different magnetic correlation lengths suggests the presence of two types of crystallographic sites for the rare-earth atoms. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 549673
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETIC MATERIALS
CRYSTAL STRUCTURE
DYSPROSIUM ALLOYS
HOLMIUM ALLOYS
MAGNESIUM ALLOYS
NEUTRON DIFFRACTION
TERBIUM ALLOYS
ZINC ALLOYS