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Title: Charge density waves and the effects of uniaxial strain on the electronic structure of 2H-NbSe2

Journal Article · · Communications Materials
 [1];  [1];  [1]; ORCiD logo [2];  [3]; ORCiD logo [4]
  1. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  2. Donostia International Physics Center, Donostia-San Sebastian (Spain)
  3. Ecole Polytechnique Fédérale de Lausanne (Switzerland)
  4. Brookhaven National Laboratory (BNL), Upton, NY (United States); Donostia International Physics Center, Donostia-San Sebastian (Spain)

Interplay of superconductivity and density wave orders has been at the forefront of research of correlated electronic phases for a long time. 2H-NbSe2 is considered to be a prototype system for studying this interplay, where the balance between the two orders was proven to be sensitive to band filling and pressure. However, the origin of charge density wave in this material is still unresolved. Here, by using angle-resolved photoemission spectroscopy, we revisit the charge density wave order and study the effects of uniaxial strain on the electronic structure of 2H-NbSe2. Our results indicate previously undetected signatures of charge density waves on the Fermi surface. The application of small amount of uniaxial strain induces substantial changes in the electronic structure and lowers its symmetry. This, and the altered lattice should affect both the charge density wave phase and superconductivity and should be observable in the macroscopic properties.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
Red guipuzcoana de Ciencia, Tecnología e Innovación - Gipuzkoa NEXT 2023; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
SC0012704
OSTI ID:
2473070
Report Number(s):
BNL--226272-2024-JAAM
Journal Information:
Communications Materials, Journal Name: Communications Materials Journal Issue: 1 Vol. 5; ISSN 2662-4443
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

Scanning tunneling spectroscopy of vortices in a superconductor journal December 1991
In-situ angle-resolved photoemission spectroscopy of copper-oxide thin films synthesized by molecular beam epitaxy journal September 2018
Quick suppression of superconductivity of NbSe2 by Rb intercalation journal August 2019
Nb–Nb Interactions Define the Charge Density Wave Structure of 2H-NbSe 2 journal January 2013
Charge order from orbital-dependent coupling evidenced by NbSe2 journal May 2015
Charge-order-maximized momentum-dependent superconductivity journal August 2007
Direct observation of a uniaxial stress-driven Lifshitz transition in Sr2RuO4 journal August 2019
Tailored Ising superconductivity in intercalated bulk NbSe2 journal October 2022
Quantum phase transition from triangular to stripe charge order in NbSe2 journal January 2013
Atomic-scale strain manipulation of a charge density wave journal June 2018
Charge-density waves and superlattices in the metallic layered transition metal dichalcogenides journal December 2001
Pressure effect on the charge-density-wave formation in 2 H − N b Se 2 and correlation between structural instabilities and superconductivity in unstable solids journal February 1977
Microscopic model of charge-density waves in 2 H − Ta Se 2 journal July 1977
Amplitude collective modes in superconductors and their coupling to charge-density waves journal November 1982
Energy gaps measured by scanning tunneling microscopy journal November 1990
Fermi-surface nesting and the origin of the charge-density wave in Nb Se 2 journal May 2006
Band Structures of Transition-Metal-Dichalcogenide Layer Compounds journal October 1973
Charge ordering geometries in uniaxially strained NbSe 2 journal November 2015
Charge order in NbSe 2 journal December 2016
First-principles study of charge and magnetic ordering in monolayer NbSe 2 journal February 2018
Pseudogap and Charge Density Waves in Two Dimensions journal May 2008
Primary Role of the Barely Occupied States in the Charge Density Wave Formation of NbSe 2 journal November 2008
Two Energy Gaps and Fermi-Surface “Arcs” in NbSe 2 journal April 2009
Extended Phonon Collapse and the Origin of the Charge-Density Wave in 2 H − NbSe 2 journal September 2011
Quasiparticle Interference, Quasiparticle Interactions, and the Origin of the Charge Density Wave in 2 H − NbSe 2 journal January 2015
Gate Tuning of Electronic Phase Transitions in Two-Dimensional NbSe 2 journal August 2016
Image of the Fermi Surface in the Vibration Spectrum of a Metal journal May 1959
Connection between Charge-Density Waves and Superconductivity in Nb Se 2 journal May 1975
Study of Superlattice Formation in 2 H -Nb Se 2 and 2 H -Ta Se 2 by Neutron Scattering journal March 1975
New Mechanism for a Charge-Density-Wave Instability journal July 1975
Strong-Coupling Theory of Charge-Density-Wave Transitions journal July 1983
Many-Body Effects in Angle-Resolved Photoemission: Quasiparticle Energy and Lifetime of a Mo(110) Surface State journal September 1999
Charge-Density-Wave-Induced Modifications to the Quasiparticle Self-Energy in 2H- TaSe 2 journal November 2000
Quasiparticle Spectra, Charge-Density Waves, Superconductivity, and Electron-Phonon Coupling in 2 H − N b S e 2 journal February 2004
Comment on “Multiple Bosonic Mode Coupling in the Electron Self-Energy of ( La 2 − x Sr x ) CuO 4 ” journal March 2006
Spectroscopic and spatial characterization of superconducting vortex core states with a scanning tunneling microscope
  • Hess, H. F.; Robinson, R. B.; Dynes, R. C.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 8, Issue 1 https://doi.org/10.1116/1.577016
journal January 1990
Strong peak in T c of Sr 2 RuO 4 under uniaxial pressure journal January 2017
Superconductivity in a Misfit Phase That Combines the Topological Crystalline Insulator Pb1−xSnxSe with the CDW-Bearing Transition Metal Dichalcogenide TiSe2 journal June 2016

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