|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Electronic correlation determining correlated plasmons in Sb-doped Bi$_2$Se$_3$ | | P. K. Das
; T. J. Whitcher
; M. Yang
; X. Chi
; Y. P. Feng
; W. Lin
; J. S. Chen
; I. Vobornik
; J. Fujii
; K. A. Kokh
; O.E. Tereshchenko
; C. Z. Diao
; Jisoo Moon
; Seongshik Oh
; A. H. Castro-Neto
; M. B. H Breese
; A. T. S. Wee
; A. Rusydi
; | | Date: |
6 Sep 2019 | | Abstract: | Electronic correlation is believed to play an important role in exotic
phenomena such as insulator-metal transition, colossal magneto resistance and
high temperature superconductivity in correlated electron systems. Recently, it
has been shown that electronic correlation may also be responsible for the
formation of unconventional plasmons. Herewith, using a combination of
angle-dependent spectroscopic ellipsometry, angle resolved photoemission
spectroscopy and Hall measurements all as a function of temperature supported
by first-principles calculations, the existence of low-loss high-energy
correlated plasmons accompanied by spectral weight transfer, a fingerprint of
electronic correlation, in topological insulator
(Bi$_{0.8}$Sb$_{0.2}$)$_2$Se$_3$ is revealed. Upon cooling, the density of free
charge carriers in the surface states decreases whereas those in the bulk
states increase, and that the newly-discovered correlated plasmons are key to
explaining this phenomenon. Our result shows the importance of electronic
correlation in determining new correlated plasmons and opens a new path in
engineering plasmonic-based topologically-insulating devices. | | Source: | arXiv, 1909.2703 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER