We report on time-resolved broadband transient reflectivity (tr-bb-TR) measurements performed on a bulk single crystal of Td-MoTe2 as a function of the incident pump fluence (F). Tr-bb-TR data unveil photoinduced electronic changes progressing on the sub-picosecond timescale as well as the dynamics of the coherent low-frequency 1A1 interlayer shear phonon. Our results indicate a gradual evolution of both the TR and the 1A1 Fourier intensity spectra as a function of F, ruling out the threshold-like change that has been associated with the ultrafast photoinduced Td → 1T ′ phase transition. We also observe a large redshift of the 1A1 Fourier spectral features, which implies that large renormalization effects are taking place on the interband transitions that are dielectrically susceptible to the 1A1 interlayer shear phonon displacement.
Skip Nav Destination
,
,
,
,
,
,
,
,
,
,
,
Article navigation
21 March 2022
Research Article|
March 25 2022
Photoinduced interlayer dynamics in Td-MoTe2: A broadband pump-probe study Available to Purchase
Meixin Cheng;
Meixin Cheng
1
The Ultrafast Electron Imaging Lab, Department of Chemistry, and Waterloo Institute for Nanotechnology, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Shazhou Zhong;
Shazhou Zhong
2
Institute for Quantum Computing, Department of Physics and Astronomy, Department of Electrical and Computer Engineering, and Department of Chemistry, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Nicolas Rivas;
Nicolas Rivas
a)
1
The Ultrafast Electron Imaging Lab, Department of Chemistry, and Waterloo Institute for Nanotechnology, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Tina Dekker;
Tina Dekker
2
Institute for Quantum Computing, Department of Physics and Astronomy, Department of Electrical and Computer Engineering, and Department of Chemistry, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Ariel Alcides Petruk;
Ariel Alcides Petruk
1
The Ultrafast Electron Imaging Lab, Department of Chemistry, and Waterloo Institute for Nanotechnology, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Patrick Gicala;
Patrick Gicala
1
The Ultrafast Electron Imaging Lab, Department of Chemistry, and Waterloo Institute for Nanotechnology, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Kostyantyn Pichugin;
Kostyantyn Pichugin
1
The Ultrafast Electron Imaging Lab, Department of Chemistry, and Waterloo Institute for Nanotechnology, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Fangchu Chen;
Fangchu Chen
2
Institute for Quantum Computing, Department of Physics and Astronomy, Department of Electrical and Computer Engineering, and Department of Chemistry, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Xuan Luo
;
Xuan Luo
3
Key Laboratory of Materials Physics, Institute of Solid-State Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
Search for other works by this author on:
Yuping Sun
;
Yuping Sun
3
Key Laboratory of Materials Physics, Institute of Solid-State Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
4
High Magnetic Field Laboratory, Chinese Academy of Sciences
, HFIPS, Hefei 230031, China
5
Collaborative Innovation Center of Advanced Microstructures, Nanjing University
, Nanjing 210093, China
Search for other works by this author on:
Adam W. Tsen
;
Adam W. Tsen
2
Institute for Quantum Computing, Department of Physics and Astronomy, Department of Electrical and Computer Engineering, and Department of Chemistry, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
Search for other works by this author on:
Germán Sciaini
Germán Sciaini
b)
1
The Ultrafast Electron Imaging Lab, Department of Chemistry, and Waterloo Institute for Nanotechnology, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
b)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
Meixin Cheng
1
Shazhou Zhong
2
Nicolas Rivas
1,a)
Tina Dekker
2
Ariel Alcides Petruk
1
Patrick Gicala
1
Kostyantyn Pichugin
1
Fangchu Chen
2
Xuan Luo
3
Yuping Sun
3,4,5
Adam W. Tsen
2
Germán Sciaini
1,b)
1
The Ultrafast Electron Imaging Lab, Department of Chemistry, and Waterloo Institute for Nanotechnology, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
2
Institute for Quantum Computing, Department of Physics and Astronomy, Department of Electrical and Computer Engineering, and Department of Chemistry, University of Waterloo
, Waterloo, Ontario N2L 3G1, Canada
3
Key Laboratory of Materials Physics, Institute of Solid-State Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
4
High Magnetic Field Laboratory, Chinese Academy of Sciences
, HFIPS, Hefei 230031, China
5
Collaborative Innovation Center of Advanced Microstructures, Nanjing University
, Nanjing 210093, China
a)
Present address: Nuclear Engineering Group, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
b)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 120, 123102 (2022)
Article history
Received:
January 11 2022
Accepted:
March 11 2022
Citation
Meixin Cheng, Shazhou Zhong, Nicolas Rivas, Tina Dekker, Ariel Alcides Petruk, Patrick Gicala, Kostyantyn Pichugin, Fangchu Chen, Xuan Luo, Yuping Sun, Adam W. Tsen, Germán Sciaini; Photoinduced interlayer dynamics in Td-MoTe2: A broadband pump-probe study. Appl. Phys. Lett. 21 March 2022; 120 (12): 123102. https://doi.org/10.1063/5.0084986
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Hard x-ray photoemission study of bulk single-crystalline InGaZnO4
Goro Shibata, Yunosuke Takahashi, et al.
Shining light in a heartbeat: Controlling cardiac bioelectricity with membrane-targeted photoswitches
Chiara Florindi, Giulia Simoncini, et al.
Related Content
Generation and detection of coherent longitudinal acoustic waves in ultrathin 1T’-MoTe2
Appl. Phys. Lett. (November 2019)
Self-assembly of MoTe2 nanostructures and nanocomposites over centimeter-large areas via femtosecond laser
Appl. Phys. Lett. (December 2024)
Phase transition of Al2O3-encapsulated MoTe2 via rapid thermal annealing
Appl. Phys. Lett. (July 2022)
Unraveling the multistage phase transformations in monolayer MoTe2−x
Appl. Phys. Lett. (October 2024)
Ultrafast carrier and phonon dynamics in few-layer 2H–MoTe2
J. Chem. Phys. (September 2019)