Academic Journal
Mn magnetism in icosahedral quasicrystalline Al72.4Pd20.5Mn7.1
| العنوان: | Mn magnetism in icosahedral quasicrystalline Al72.4Pd20.5Mn7.1 |
|---|---|
| المؤلفون: | Dolinsek, J., Klanjsek, M., Apih, T., Gavilano, J. L., Gianno, K., Ott, H. R., Dubois, J. M., Urban, K. |
| المصدر: | Physical review / B 64(2), 024203 (2001). doi:10.1103/PhysRevB.64.024203 |
| بيانات النشر: | APS |
| سنة النشر: | 2001 |
| المجموعة: | Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
| مصطلحات موضوعية: | info:eu-repo/classification/ddc/530 |
| جغرافية الموضوع: | DE |
| الوصف: | The unusual magnetism of manganese atoms in an icosahedral Al72.4Pd20.5Mn7.1 single-grain quasicrystal was studied by Al-27 nuclear magnetic resonance (NMR), magnetic susceptibility, and electrical resistivity measurements. Between room temperature and 50 K both the Al-27 NMR linewidth and the frequency shift exhibit a Curie-Weiss-type, 1/(T-theta) temperature dependence. At lower temperatures a significant narrowing of the linewidth, concomitant with a reduction of the frequency shift is observed. These features can be explained by a gradual reduction of the local exchange magnetic field at the position of the Al-27 nuclei that is transferred from the manganese d moments via the conduction electrons. Two possible origins of this phenomenon are discussed: (i) the Kondo-like screening of manganese moments by the conduction electrons and (ii) the ''resistivity'' -damping of the RKKY interaction due to increasing electron localization at low temperatures. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/hdl/2128/1077; info:eu-repo/semantics/altIdentifier/wos/WOS:000169835700033; info:eu-repo/semantics/altIdentifier/issn/0163-1829; https://juser.fz-juelich.de/record/37816; https://juser.fz-juelich.de/search?p=id:%22PreJuSER-37816%22 |
| الاتاحة: | https://juser.fz-juelich.de/record/37816 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-37816%22 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.AE6D1BC5 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |