Trambly de Laissardière G, Mayou D. Magnetism in Al(Si)-Mn quasicrystals and related phases.
PHYSICAL REVIEW LETTERS 2000;
85:3273-3276. [PMID:
11019319 DOI:
10.1103/physrevlett.85.3273]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2000] [Indexed: 05/23/2023]
Abstract
An extreme sensitivity of the magnetic properties to the atomic structure has been observed in Al(Si)-Mn and Al-Pd-Mn quasicrystals, approximants, and liquids with similar Mn concentrations (of the order of 8%- 20%). Here, we show that the effect of the local environment of the Mn atoms is not sufficient to explain this complex behavior. A new model is presented, which, taking into account Mn-Mn interactions mediated by the conduction electrons over large distances ( 5 A and more), allows one to understand why only a small fraction of the Mn atoms carry a localized magnetic moment in quasicrystals and why a large proportion is magnetic in liquids.
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