Analysis of the high-temperature spin-glass susceptibility: Determination of the local magnetic exchange |
| |
Authors: | A.F.J. Morgownik J.A. Mydosh |
| |
Affiliation: | Kamerlingh Onnes Laboratorium der Rijks-Universiteit Leiden, Leiden, The Netherlands |
| |
Abstract: | New measurements are reported of the magnetic susceptibility above the freezing temperature Tf for noble-metal spin-glasses with to 6 at.% Fe or Mn. The susceptibility for Tf<T?5 Tf is not Curie-Weiss, but local magnetic correlations manifest themselves and provide a key for the determination of the exchange interactions in spin-glasses. The exchange parameters Jn are resolved up to 5 neighbors for Fe, Mn, Mn and Mn through a configuration ensemble calculation which includes atomic short range order. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |