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Magnetic phases of the triangular Kondo lattice

Keßler, M. 1; Eder, R. 1
1 Institut für QuantenMaterialien und Technologien (IQMT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The Kondo lattice model (KLM) on the 2-dimensional triangular lattice is studied by bond fermion theory.Three-sublattice Néel order (AF) and partial Kondo screening (PKS) are considered as possible phases of themodel. We find that near half filling and at moderate interaction strength, AF and PKS are energetically close andfavored compared to the paramagnetic phase. We discuss the quasiparticle band structure and Fermi surface ofthe different phases. As is the case for the KLM on the square lattice, both the AF and the PKS phase can befurther subdivided into phases with the same symmetry, but different Fermi surface topology

DOI: 10.1103/PhysRevB.102.235125
Zitationen: 8
Zitationen: 9
Zugehörige Institution(en) am KIT Institut für QuantenMaterialien und Technologien (IQMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 13.12.2020
Sprache Englisch
Identifikator ISSN: 2469-9950, 2469-9969
KITopen-ID: 1000127773
HGF-Programm 43.21.01 (POF III, LK 01) Quantum Correlations in Condensed Matter
Erschienen in Physical review / B
Verlag American Physical Society (APS)
Band 102
Heft 23
Seiten Art.-Nr.: 235125
Vorab online veröffentlicht am 11.12.2020
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