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Visualization of Chiral Electronic Structure and Anomalous Optical Response in a Material with Chiral Charge Density Waves

Journal Article · · Physical Review Letters
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  1. Shanghai Tech University (China)
  2. Nanjing Univ. (China)
  3. Weizmann Institute of Science, Rehovot (Israel)
  4. Shanghai Tech University (China); Univ. of Oxford (United Kingdom)
  5. Chinese Academy of Sciences (CAS), Hefei (China). Institute of Solid State Physics
  6. Tsinghua Univ., Beijing (China)
  7. Chinese Academy of Sciences (CAS), Hefei (China). Institute of Solid State Physics and High Magnetic Field Laboratory; Nanjing Univ. (China)
  8. Shanghai Tech University (China); Univ. of Oxford (United Kingdom); Tsinghua Univ., Beijing (China)
Chiral materials have attracted significant research interests as they exhibit intriguing physical properties, such as chiral optical response, spin-momentum locking, and chiral induced spin selectivity. Recently, layered transition metal dichalcogenide 1T–TaS2 has been found to host a chiral charge density wave (CDW) order. Nevertheless, the physical consequences of the chiral order, for example, in electronic structures and the optical properties, are yet to be explored. Here, we report the spectroscopic visualization of an emergent chiral electronic band structure in the CDW phase, characterized by windmill-shaped Fermi surfaces. Further, we uncover a remarkable chirality-dependent circularly polarized Raman response due to the salient in-plane chiral symmetry of CDW, although the ordinary circular dichroism vanishes. Chiral Fermi surfaces and anomalous Raman responses coincide with the CDW transition, proving their lattice origin. Our Letter paves a path to manipulate the chiral electronic and optical properties in two-dimensional materials and explore applications in polarization optics and spintronics.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2422757
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 129; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (63)

First principles phonon calculations in materials science preprint January 2015
Comparison of the soft modes in tantalum dichalcogenides journal May 1981
VASPKIT: A user-friendly interface facilitating high-throughput computing and analysis using VASP code journal October 2021
Photoemission study of valence band dispersions in charge density wave material 1T-TaS2 journal September 2004
First principles phonon calculations in materials science journal November 2015
Chirality-Induced Giant Unidirectional Magnetoresistance in Twisted Bilayer Graphene journal February 2021
Raman Optical Activity of 1T-TaS2 journal April 2022
Atomistic origin of an ordered superstructure induced superconductivity in layered chalcogenides journal January 2015
From Mott state to superconductivity in 1T-TaS2 journal November 2008
Gate-tunable phase transitions in thin flakes of 1T-TaS2 journal January 2015
Chiral atomically thin films journal February 2016
Orbital textures and charge density waves in transition metal dichalcogenides journal March 2015
A high-temperature quantum spin liquid with polaron spins journal July 2017
Nonreciprocal responses from non-centrosymmetric quantum materials journal September 2018
Band insulator to Mott insulator transition in 1T-TaS2 journal August 2020
Chiral metal surfaces for enantioselective processes journal August 2020
Chiral topological semimetal with multifold band crossings and long Fermi arcs journal May 2019
Chiral molecules and the electron spin journal March 2019
Observation of unconventional chiral fermions with long Fermi arcs in CoSi journal March 2019
Topological chiral crystals with helicoid-arc quantum states journal March 2019
Spontaneous gyrotropic electronic order in a transition-metal dichalcogenide journal February 2020
The Handedness of the Universe journal January 1990
Superconductivity induced by Se-doping in layered charge-density-wave system 1 T -TaS 2− x Se x journal May 2013
1T-TaS 2 as a quantum spin liquid journal June 2017
The Raman effect in crystals journal October 1964
Charge-density waves and superlattices in the metallic layered transition metal dichalcogenides journal March 1975
Electrical, structural and magnetic properties of pure and doped 1T-TaS 2 journal March 1979
Band structures of the layer compounds 1T-TaS 2 and 2H-TaSe 2 in the presence of commensurate charge-density waves journal June 1985
Fermi surface of layered compounds and bulk charge density wave systems journal August 2007
On the origin of charge-density waves in select layered transition-metal dichalcogenides journal May 2011
Simplified LCAO Method for the Periodic Potential Problem journal June 1954
Second harmonic generation as a probe of broken mirror symmetry journal June 2020
Effects of structural distortions on the electronic structure of T -type transition metal dichalcogenides journal July 2020
Probing charge density wave phases and the Mott transition in 1T−TaS2 by inelastic light scattering journal June 2021
Lattice-driven chiral charge density wave state in 1T−TaS2 journal August 2022
Direct characterization of charge-density-wave defects in titanium-doped TaSe 2 by scanning tunneling microscopy journal January 1990
Spectroscopic signatures of phase transitions in a charge-density-wave system: 1 T - TaS 2 journal September 1992
Scanning tunneling microscopy of the charge-density-wave structure in 1 T - TaS 2 journal June 1994
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Fine structure in high-resolution photoemission spectra of quasi-two-dimensional 1T-TaS2 journal December 2001
Phonon anomaly at the charge ordering transition in 1 T − TaS 2 journal September 2002
Pseudogapped Fermi surfaces of 1 T − TaS 2 and 1 T − TaSe 2 : A charge density wave effect journal March 2004
Unexpected periodicity in the quasi-two-dimensional Mott insulator 1 T − TaS 2 revealed by angle-resolved photoemission journal April 2005
Spin-orbit coupling in the band structure of reconstructed 1 T − TaS 2 journal February 2006
Superconducting phase in the layered dichalcogenide 1 T -TaS 2 upon inhibition of the metal-insulator transition journal May 2010
Extracting E versus k ⃗ effective band structure from supercell calculations on alloys and impurities journal February 2012
Superconductivity and bandwidth-controlled Mott metal-insulator transition in 1 T -TaS 2 − x Se x journal September 2013
Zone-center phonons of bulk, few-layer, and monolayer 1 T − TaS 2 : Detection of commensurate charge density wave phase through Raman scattering journal June 2016
Quasi-one-dimensional metallic band dispersion in the commensurate charge density wave of 1 T − TaS 2 journal November 2017
Stacking-driven gap formation in layered 1 T - TaS 2 journal November 2018
Electronic structure of commensurate, nearly commensurate, and incommensurate phases of 1 T − Ta S 2 by angle-resolved photoelectron spectroscopy, scanning tunneling spectroscopy, and density functional theory journal November 2018
Effective Band Structure of Random Alloys journal June 2010
Real-Space Coexistence of the Melted Mott State and Superconductivity in Fe-Substituted 1 T − TaS 2 journal October 2012
Multiple Types of Topological Fermions in Transition Metal Silicides journal November 2017
Spinon Fermi Surface in a Cluster Mott Insulator Model on a Triangular Lattice and Possible Application to 1 T − Ta S 2 journal July 2018
Generalized Gradient Approximation Made Simple journal October 1996
Electrical Magnetochiral Anisotropy journal November 2001
Continuous Tuning of Electronic Correlations by Alkali Adsorption on Layered 1 T − TaS 2 journal September 2005
Ultrafast manipulation of mirror domain walls in a charge density wave journal October 2018
Spin Selectivity in Electron Transmission Through Self-Assembled Monolayers of Double-Stranded DNA journal February 2011
Electric field control of natural optical activity in a multiferroic helimagnet journal April 2021
Spintronics and Chirality: Spin Selectivity in Electron Transport Through Chiral Molecules journal April 2015
Fe-doping–induced superconductivity in the charge-density-wave system 1T-TaS 2 journal March 2012

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