Chiral honeycomb superstructure, parquet nesting, and Dirac cone formation in Cu-intercalated 2H-TaSe2

A. A. Kordyuk; A. N. Yaresko; B. Buechner; C. Hess; D. V. Evtushinsky; H. Berger; S. V. Borisenko; T. Haenke; V. B. Zabolotnyy

arxiv: 1003.1976 · v1 · submitted 2010-03-09 · ❄️ cond-mat.mtrl-sci · cond-mat.mes-hall· cond-mat.str-el

Chiral honeycomb superstructure, parquet nesting, and Dirac cone formation in Cu-intercalated 2H-TaSe2

A. A. Kordyuk , D. V. Evtushinsky , V. B. Zabolotnyy , T. Haenke , C. Hess , B. Buechner , A. N. Yaresko , H. Berger

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S. V. Borisenko

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classification ❄️ cond-mat.mtrl-sci cond-mat.mes-hallcond-mat.str-el

keywords diracchiralconeeffectiveformationhoneycombnestingparquet

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Powered by effective parquet nesting a commensurate chiral honeycomb superstructure in a trigonally packed transition metal dichalcogenide TaSe$_2$ results in a Dirac cone anomaly in one-particle excitation spectrum. However, the formation of the well defined Dirac point seems to be hindered by effective scattering on 2D plasmons.

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Chiral honeycomb superstructure, parquet nesting, and Dirac cone formation in Cu-intercalated 2H-TaSe2

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