Superconductivity-induced spectral weight transfer due to quantum geometry
Journal Article
·
· Physical Review B
- Harvard Univ., Cambridge, MA (United States)
- Inst. of Physical and Chemical Research (RIKEN), Wako (Japan); Univ. of Tokyo (Japan)
Optical spectral weight transfer associated with the onset of superconductivity at high-energy scales compared with the superconducting gap has been observed in several systems such as high-Tc cuprates. While there are still debates on the origin of this phenomenon, a consensus is that it is due to strong correlation effects beyond the BCS theory. Here, we show that there is another route to a nonzero spectral weight transfer based on the quantum geometry of the conduction band in multiband systems. Further, we discuss applying this idea to the cuprates and twisted multilayer graphene.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- U.S. Department of Energy; USDOE Office of Science (SC), Basic Energy Sciences (BES); National Research Foundation of Korea (NRF); Japan Society for the Promotion of Science (JSPS)
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1827107
- Report Number(s):
- IS-J--10,596; 2020R1A6A3A03037129; DE-AC02-07CH11358; JPMJCR1874; JPMJCR16F1; 18H03676
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 10 Vol. 104; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Anomalous spectral weight transfer at the superconducting transition of Bi sub 2 Sr sub 2 CaCu sub 2 O sub 8+. delta
Ubiquitous suppression of the nodal coherent spectral weight in Bi-based cuprates
Visualizing the unusual spectral weight transfer in DyBa2Cu3O7–δ thin film
Journal Article
·
1991
· Physical Review Letters; (USA)
·
OSTI ID:5490623
+5 more
Ubiquitous suppression of the nodal coherent spectral weight in Bi-based cuprates
Journal Article
·
2021
· Physical Review B
·
OSTI ID:1785113
+21 more
Visualizing the unusual spectral weight transfer in DyBa2Cu3O7–δ thin film
Journal Article
·
2022
· Scientific Reports
·
OSTI ID:1840646
+13 more