Electronic Structure and Nesting-Driven Enhancement of the RKKY Interaction at the Magnetic Ordering Propagation Vector in Gd2PdSi3 and Tb2PdSi3
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Contributors
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
Original language | English |
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Article number | 046401 |
Number of pages | 4 |
Journal | The physical review |
Volume | 102 |
Issue number | 4 |
Publication status | Published - 30 Jan 2009 |
Peer-reviewed | Yes |
External IDs
Scopus | 60149095571 |
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WOS | 000262978600041 |
PubMed | 19257445 |
Keywords
Keywords
- Crystal-growth, Magnetoresistance, Anomalies, Behavior, Temperature, Anisotropy, Tb