|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Electronic multipoles and multiplet pairs induced from Pomeranchuk and Cooper instabilities of Bogoliubov Fermi surfaces | | Shun-Ta Tamura
; Shoma Iimura
; Shintaro Hoshino
; | | Date: |
15 Apr 2020 | | Abstract: | It has recently been pointed out that Fermi surfaces can remain even in the
superconductors under the symmetric spin-orbit interaction and broken
time-reversal symmetry. Using the linear response theory, we study the
instability of such systems toward ordering, which is an intrinsic property of
the Fermi surfaces. The ordered states are classified into diagonal and
offdiagonal ones, each of which respectively indicates the Pomeranchuk
instability and Cooper pairing not of original electron but of Bogoliubov
particles (bogolons). The corresponding order parameters are expanded by
multipole moments (diagonal order parameter) and multiplet pair amplitudes
(offdiagonal order parameter) of original electrons, which are induced by the
internal fields arising from bogolons’ ordering. While the bogolons’ order
parameters partially inherit the characters of the original electrons, many
order parameter components mix with similar magnitude. Hence there is no
clear-cut distinction whether the phase transition is diagonal or offdiagonal
ordering in terms of the original electrons. These ordering instabilities
inside the superconducting states provide insights into the superconductors
which have the second phase transition below the first transition temperature. | | Source: | arXiv, 2004.6925 | | 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