Electronic Structure and Nesting-Driven Enhancement of the RKKY Interaction at the Magnetic Ordering Propagation Vector in Gd2PdSi3 and Tb2PdSi3
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Measurements of the low-energy electronic structure in Gd2PdSi3 and Tb2PdSi3 by means of angle-resolved photoelectron spectroscopy reveal a Fermi surface consisting of an electron barrel at the Gamma point surrounded by spindle-shaped electron pockets originating from the same band. The calculated momentum-dependent RKKY coupling strength is peaked at the 1/2 Gamma K wave vector, which coincides with the propagation vector of the low-temperature in-plane magnetic order observed by neutron diffraction, thereby demonstrating the decisive role of the Fermi surface geometry in explaining the complex magnetic ground state of ternary rare earth silicides.
Details
Originalsprache | Englisch |
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Aufsatznummer | 046401 |
Seitenumfang | 4 |
Fachzeitschrift | The physical review |
Jahrgang | 102 |
Ausgabenummer | 4 |
Publikationsstatus | Veröffentlicht - 30 Jan. 2009 |
Peer-Review-Status | Ja |
Externe IDs
Scopus | 60149095571 |
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WOS | 000262978600041 |
PubMed | 19257445 |
Schlagworte
Schlagwörter
- Crystal-growth, Magnetoresistance, Anomalies, Behavior, Temperature, Anisotropy, Tb