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k-resolved susceptibility function of 2H-TaSe2 from angle-resolved photoemission

Laverock, J. ; Newby, D. Jr. ; Abreu, E. ; Averitt, R. ; Smith, K. E. ; Singh, R. P. ; Balakrishnan, G. ; Adell, Johan LU and Thiagarajan, Balasubramanian LU (2013) In Physical Review B (Condensed Matter and Materials Physics) 88(3).
Abstract
The connection between the Fermi surface and charge-density-wave (CDW) order is revisited in 2H-TaSe2. Using angle-resolved photoemission spectroscopy, ab initio band-structure calculations, and an accurate tight-binding model, we develop the empirical k-resolved susceptibility function, which we use to highlight states that contribute to the susceptibility for a particular q vector. We show that although the Fermi surface is involved in the peaks in the susceptibility associated with CDW order, it is not through conventional Fermi surface nesting, but rather through finite energy transitions from states located far from the Fermi level. Comparison with monolayer TaSe2 illustrates the different mechanisms that are involved in the absence... (More)
The connection between the Fermi surface and charge-density-wave (CDW) order is revisited in 2H-TaSe2. Using angle-resolved photoemission spectroscopy, ab initio band-structure calculations, and an accurate tight-binding model, we develop the empirical k-resolved susceptibility function, which we use to highlight states that contribute to the susceptibility for a particular q vector. We show that although the Fermi surface is involved in the peaks in the susceptibility associated with CDW order, it is not through conventional Fermi surface nesting, but rather through finite energy transitions from states located far from the Fermi level. Comparison with monolayer TaSe2 illustrates the different mechanisms that are involved in the absence of bilayer splitting. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
88
issue
3
article number
035108
publisher
American Physical Society
external identifiers
  • wos:000321669800004
  • scopus:84880878360
ISSN
1098-0121
DOI
10.1103/PhysRevB.88.035108
language
English
LU publication?
yes
id
11a346cc-f0e7-4533-9666-959515ad1161 (old id 3975791)
date added to LUP
2016-04-01 13:46:12
date last changed
2022-04-21 23:32:12
@article{11a346cc-f0e7-4533-9666-959515ad1161,
  abstract     = {{The connection between the Fermi surface and charge-density-wave (CDW) order is revisited in 2H-TaSe2. Using angle-resolved photoemission spectroscopy, ab initio band-structure calculations, and an accurate tight-binding model, we develop the empirical k-resolved susceptibility function, which we use to highlight states that contribute to the susceptibility for a particular q vector. We show that although the Fermi surface is involved in the peaks in the susceptibility associated with CDW order, it is not through conventional Fermi surface nesting, but rather through finite energy transitions from states located far from the Fermi level. Comparison with monolayer TaSe2 illustrates the different mechanisms that are involved in the absence of bilayer splitting.}},
  author       = {{Laverock, J. and Newby, D. Jr. and Abreu, E. and Averitt, R. and Smith, K. E. and Singh, R. P. and Balakrishnan, G. and Adell, Johan and Thiagarajan, Balasubramanian}},
  issn         = {{1098-0121}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review B (Condensed Matter and Materials Physics)}},
  title        = {{k-resolved susceptibility function of 2H-TaSe2 from angle-resolved photoemission}},
  url          = {{http://dx.doi.org/10.1103/PhysRevB.88.035108}},
  doi          = {{10.1103/PhysRevB.88.035108}},
  volume       = {{88}},
  year         = {{2013}},
}