k-resolved susceptibility function of 2H-TaSe2 from angle-resolved photoemission
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3975791
- author
- Laverock, J. ; Newby, D. Jr. ; Abreu, E. ; Averitt, R. ; Smith, K. E. ; Singh, R. P. ; Balakrishnan, G. ; Adell, Johan LU and Thiagarajan, Balasubramanian LU
- organization
- publishing date
- 2013
- 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}}, }