DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of local symmetry on lattice dynamics coupled to topological surface states

Journal Article · · Physical Review. B
ORCiD logo [1];  [2];  [3];  [4]; ORCiD logo [5];  [5]; ORCiD logo [1];  [6]; ORCiD logo [6];  [3];  [3];  [7];  [7];  [7];  [8];  [4];  [4];  [1];  [9];  [10] more »;  [11] « less
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Inst. (PULSE); Arizona State Univ., Tempe, AZ (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Inst. (PULSE); Stanford Univ., CA (United States)
  4. Tyndall National Institute, Cork (Ireland)
  5. University College Cork (Ireland)
  6. Univ. of Michigan, Ann Arbor, MI (United States)
  7. SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES) and Photon Ultrafast Laser Science and Engineering Inst. (PULSE)
  9. Tyndall National Institute, Cork (Ireland); University College Cork (Ireland)
  10. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES) and Photon Ultrafast Laser Science and Engineering Inst. (PULSE); Stanford Univ., CA (United States)
  11. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES); Stanford Univ., CA (United States)

Herein we investigate coupled electron-lattice dynamics in the topological insulator Bi2Te3 with time-resolved photoemission and time-resolved x-ray diffraction. It is well established that coherent phonons can be launched by optical excitation, but selection rules generally restrict these modes to zone-center wave vectors and Raman-active branches. We find that the topological surface state couples to additional modes, including a continuum of surface-projected bulk modes from both Raman and infrared branches, with possible contributions from surface-localized modes when they exist. Our calculations show that this surface vibrational spectrum occurs naturally as a consequence of the translational and inversion symmetries broken at the surface, without requiring the splitting-off of surface-localized phonon modes. The generality of this result suggests that coherent phonon spectra are useful by providing unique fingerprints for identifying surface states in more controversial materials. These effects may also expand the phase space for tailoring surface state wave functions via ultrafast optical excitation.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Science Foundation Ireland; Department for the Economy Northern Ireland
Grant/Contract Number:
AC02-76SF00515; 15/IA/3160; 12/IA/1601
OSTI ID:
1958167
Journal Information:
Physical Review. B, Vol. 107, Issue 1; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (55)

Topological insulators and superconductors journal October 2011
Effect of Hydrostatic and Uniaxial Pressure on Structural Properties and Raman Active Lattice Vibrations in Bi2Te3 journal September 1984
Mechanically-exfoliated stacks of thin films of Bi2Te3 topological insulators with enhanced thermoelectric performance journal September 2010
Observation of infrared-active modes in Raman scattering from topological insulator nanoplates journal October 2012
Phonon-induced Floquet topological phases protected by space-time symmetries journal December 2020
Floquet topological insulator in semiconductor quantum wells journal March 2011
Theory for displacive excitation of coherent phonons journal January 1992
Universal high-frequency behavior of periodically driven systems: from dynamical stabilization to Floquet engineering journal March 2015
Experimental Realization of a Three-Dimensional Topological Insulator, Bi2Te3 journal June 2009
Connection between coherent phonons and electron-phonon coupling in Sb (111) journal April 2022
Crystal symmetry breaking in few-quintuple Bi2Te3 films: Applications in nanometrology of topological insulators journal April 2010
Recent developments in the ABINIT software package journal August 2016
Lattice vibrations of Bi2Te3 journal January 1978
ABINIT: First-principles approach to material and nanosystem properties journal December 2009
A Raman and far-infrared investigation of phonons in the rhombohedral V2–VI3 compounds Bi2Te3, Bi2Se3, Sb2Te3 and Bi2(Te1−xSex)3 (0 < 1), (Bi1−ySby)2Te3 (0 < 1) journal December 1977
Structural, thermal, optical, and photoacoustic study of nanocrystalline Bi2Te3 produced by mechanical alloying journal January 2011
Large-scale production of ultrathin topological insulator bismuth telluride nanosheets by a hydrothermal intercalation and exfoliation route journal January 2012
A light-induced phononic symmetry switch and giant dissipationless topological photocurrent in ZrTe5 journal January 2021
Surface vibrational modes of the topological insulator Bi 2 Se 3 observed by Raman spectroscopy journal June 2017
Direct observation of electron thermalization and electron-phonon coupling in photoexcited bismuth journal August 2013
Probing the wavefunction of the surface states in Bi 2 Se 3 topological insulator: a realistic tight-binding approach journal June 2014
Generating coherent THz phonons with light pulses journal April 1997
Exfoliation and Characterization of Bismuth Telluride Atomic Quintuples and Quasi-Two-Dimensional Crystals journal April 2010
Ultrafast investigation and control of Dirac and Weyl semimetals journal February 2021
Topological phase transitions in group IV-VI semiconductors by phonons journal September 2015
Towards properties on demand in quantum materials journal October 2017
Optical control of coherent optical phonons in bismuth films journal October 1996
Light-Driven Raman Coherence as a Nonthermal Route to Ultrafast Topology Switching in a Dirac Semimetal journal April 2020
Surface phonons in the topological insulators Bi2Se3 and Bi2Te3 journal March 2018
Interaction of Phonons and Dirac Fermions on the Surface of Bi 2 Se 3 : A Strong Kohn Anomaly journal October 2011
Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi 2 Se 3 journal March 2012
Raman spectroscopy of Bi-Te thin films journal January 2008
An ultrafast symmetry switch in a Weyl semimetal journal January 2019
Femtosecond electron-phonon lock-in by photoemission and x-ray free-electron laser journal July 2017
Observation of antiphase coherent phonons in the warped Dirac cone of Bi 2 Te 3 journal October 2016
Measurement of Intrinsic Dirac Fermion Cooling on the Surface of the Topological Insulator Bi 2 Se 3 Using Time-Resolved and Angle-Resolved Photoemission Spectroscopy journal September 2012
Colloquium: Topological insulators journal November 2010
The crystal structure of Bi2Te3−xSex journal March 1963
Coherent lattice dynamics in topological insulator Bi 2 Te 3 probed with time-resolved optical second-harmonic generation journal August 2015
In situ Raman spectroscopy of topological insulator Bi2Te3 films with varying thickness journal July 2013
Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface journal May 2009
Using coherent phonons for ultrafast control of the Dirac node of SrMnSb 2 journal October 2018
Topological Insulators in Three Dimensions journal March 2007
Ultrafast Structural Dynamics of the Fe-Pnictide Parent Compound BaFe 2 As 2 journal February 2015
Coherent Phonon Coupling to Individual Bloch States in Photoexcited Bismuth journal June 2012
Optical Control of Topological Quantum Transport in Semiconductors journal July 2007
Distinguishing Bulk and Surface Electron-Phonon Coupling in the Topological Insulator Bi 2 Se 3 Using Time-Resolved Photoemission Spectroscopy journal October 2014
Phonon-induced topological transition to a type-II Weyl semimetal journal April 2017
Transport properties of nonequilibrium systems under the application of light: Photoinduced quantum Hall insulators without Landau levels journal December 2011
Type-II Dirac semimetal stabilized by electron-phonon coupling journal December 2017
Terahertz surface modes and electron-phonon coupling on Bi2Se3 (111) journal May 2020
Theory of Coherent Phonon Oscillations in Semiconductors journal December 1994
Vibrational spectra of Pb2Bi2Te3, PbBi2Te4, and PbBi4Te7 topological insulators: temperature-dependent Raman and theoretical insights from DFT simulations journal January 2019
Polarization dependence of coherent phonon generation and detection in the three-dimensional topological insulatorBi2Te3 journal May 2015
Deformation potentials and electron-phonon scattering: Two new theorems journal March 1984