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Title: Tracking Ultrafast Photocurrents in the Weyl Semimetal TaAs Using THz Emission Spectroscopy

Abstract

We investigate here polarization-dependent ultrafast photocurrents in the Weyl semimetal TaAs using terahertz (THz) emission spectroscopy. Our results reveal that highly directional, transient photocurrents are generated along the noncentrosymmetric c axis regardless of incident light polarization, while helicity-dependent photocurrents are excited within the ab plane. This is consistent with earlier static photocurrent experiments, and demonstrates on the basis of both the physical constraints imposed by symmetry and the temporal dynamics intrinsic to current generation and decay that optically induced photocurrents in TaAs are inherent to the underlying crystal symmetry of the transition metal monopnictide family of Weyl semimetals.

Authors:
 [1];  [2];  [3];  [3];  [3];  [3];  [4];  [1];  [1];  [1];  [1];  [5];  [1];  [4];  [3];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Groningen (Netherlands). Zernike Inst. for Advanced Materials
  3. Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics
  4. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy. California NanoSystems Inst.
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Nanjing Univ. (China). School of Physics
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1542840
Alternate Identifier(s):
OSTI ID: 1512837
Report Number(s):
LA-UR-18-26789
Journal ID: ISSN 0031-9007
Grant/Contract Number:  
89233218CNA000001; AC02-07CH11358; SC0011978
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 122; Journal Issue: 19; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Sirica, N., Tobey, R. I., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shen, B., Yarotski, D. A., Bowlan, P., Trugman, S. A., Zhu, J. -X., Dai, Y. M., Azad, A. K., Ni, N., Qiu, X. G., Taylor, A. J., and Prasankumar, R. P. Tracking Ultrafast Photocurrents in the Weyl Semimetal TaAs Using THz Emission Spectroscopy. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.122.197401.
Sirica, N., Tobey, R. I., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shen, B., Yarotski, D. A., Bowlan, P., Trugman, S. A., Zhu, J. -X., Dai, Y. M., Azad, A. K., Ni, N., Qiu, X. G., Taylor, A. J., & Prasankumar, R. P. Tracking Ultrafast Photocurrents in the Weyl Semimetal TaAs Using THz Emission Spectroscopy. United States. doi:10.1103/PhysRevLett.122.197401.
Sirica, N., Tobey, R. I., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shen, B., Yarotski, D. A., Bowlan, P., Trugman, S. A., Zhu, J. -X., Dai, Y. M., Azad, A. K., Ni, N., Qiu, X. G., Taylor, A. J., and Prasankumar, R. P. Wed . "Tracking Ultrafast Photocurrents in the Weyl Semimetal TaAs Using THz Emission Spectroscopy". United States. doi:10.1103/PhysRevLett.122.197401.
@article{osti_1542840,
title = {Tracking Ultrafast Photocurrents in the Weyl Semimetal TaAs Using THz Emission Spectroscopy},
author = {Sirica, N. and Tobey, R. I. and Zhao, L. X. and Chen, G. F. and Xu, B. and Yang, R. and Shen, B. and Yarotski, D. A. and Bowlan, P. and Trugman, S. A. and Zhu, J. -X. and Dai, Y. M. and Azad, A. K. and Ni, N. and Qiu, X. G. and Taylor, A. J. and Prasankumar, R. P.},
abstractNote = {We investigate here polarization-dependent ultrafast photocurrents in the Weyl semimetal TaAs using terahertz (THz) emission spectroscopy. Our results reveal that highly directional, transient photocurrents are generated along the noncentrosymmetric c axis regardless of incident light polarization, while helicity-dependent photocurrents are excited within the ab plane. This is consistent with earlier static photocurrent experiments, and demonstrates on the basis of both the physical constraints imposed by symmetry and the temporal dynamics intrinsic to current generation and decay that optically induced photocurrents in TaAs are inherent to the underlying crystal symmetry of the transition metal monopnictide family of Weyl semimetals.},
doi = {10.1103/PhysRevLett.122.197401},
journal = {Physical Review Letters},
number = 19,
volume = 122,
place = {United States},
year = {2019},
month = {5}
}

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Works referenced in this record:

Circular photon drag effect in bulk tellurium
journal, January 2016


Photocurrents in Weyl semimetals
journal, January 2017


Spin photocurrents in quantum wells
journal, May 2003


Weyl and Dirac semimetals in three-dimensional solids
journal, January 2018


Second harmonic generation in the Weyl semimetal TaAs from a quantum kinetic equation
journal, February 2018


Weyl semimetals, Fermi arcs and chiral anomalies
journal, October 2016

  • Jia, Shuang; Xu, Su-Yang; Hasan, M. Zahid
  • Nature Materials, Vol. 15, Issue 11
  • DOI: 10.1038/nmat4787

Observation of the Chiral-Anomaly-Induced Negative Magnetoresistance in 3D Weyl Semimetal TaAs
journal, August 2015


Colossal mid-infrared bulk photovoltaic effect in a type-I Weyl semimetal
journal, March 2019


Nonlinear photoresponse of type-II Weyl semimetals
journal, March 2019


Detection of freely propagating terahertz radiation by use of optical second-harmonic generation
journal, January 1998


Giant anisotropic nonlinear optical response in transition metal monopnictide Weyl semimetals
journal, December 2016

  • Wu, Liang; Patankar, S.; Morimoto, T.
  • Nature Physics, Vol. 13, Issue 4
  • DOI: 10.1038/nphys3969

Topological Materials: Weyl Semimetals
journal, March 2017


Optical signature of Weyl electronic structures in tantalum pnictides Ta P n ( P n = P, As)
journal, August 2017


Ultrafast helicity control of surface currents in topological insulators with near-unity fidelity
journal, March 2015

  • Kastl, Christoph; Karnetzky, Christoph; Karl, Helmut
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms7617

Temperature-tunable Fano resonance induced by strong coupling between Weyl fermions and phonons in TaAs
journal, March 2017

  • Xu, B.; Dai, Y. M.; Zhao, L. X.
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/ncomms14933

Spin-galvanic effect
journal, May 2002

  • Ganichev, S. D.; Ivchenko, E. L.; Bel'kov, V. V.
  • Nature, Vol. 417, Issue 6885
  • DOI: 10.1038/417153a

Control over topological insulator photocurrents with light polarization
journal, December 2011

  • McIver, J. W.; Hsieh, D.; Steinberg, H.
  • Nature Nanotechnology, Vol. 7, Issue 2, p. 96-100
  • DOI: 10.1038/nnano.2011.214

Second-order optical response in semiconductors
journal, February 2000


Photogalvanic effect in Weyl semimetals from first principles
journal, June 2018


Direct optical detection of Weyl fermion chirality in a topological semimetal
journal, May 2017

  • Ma, Qiong; Xu, Su-Yang; Chan, Ching-Kit
  • Nature Physics, Vol. 13, Issue 9
  • DOI: 10.1038/nphys4146

Chern Semimetal and the Quantized Anomalous Hall Effect in HgCr 2 Se 4
journal, October 2011


Signatures of the Adler–Bell–Jackiw chiral anomaly in a Weyl fermion semimetal
journal, February 2016

  • Zhang, Cheng-Long; Xu, Su-Yang; Belopolski, Ilya
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms10735

Discovery of a Weyl fermion semimetal and topological Fermi arcs
journal, July 2015


Fermi surface interconnectivity and topology in Weyl fermion semimetals TaAs, TaP, NbAs, and NbP
journal, December 2015


Optical spectroscopy of the Weyl semimetal TaAs
journal, March 2016


Circular Photogalvanic Effect in the Weyl Semimetal TaAs *
journal, November 2017


Resonance-enhanced optical nonlinearity in the Weyl semimetal TaAs
journal, October 2018


Probing the Chiral Anomaly with Nonlocal Transport in Three-Dimensional Topological Semimetals
journal, September 2014


Evolution of the Fermi surface of Weyl semimetals in the transition metal pnictide family
journal, November 2015

  • Liu, Z. K.; Yang, L. X.; Sun, Y.
  • Nature Materials, Vol. 15, Issue 1
  • DOI: 10.1038/nmat4457

Quantized circular photogalvanic effect in Weyl semimetals
journal, July 2017

  • de Juan, Fernando; Grushin, Adolfo G.; Morimoto, Takahiro
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/ncomms15995

Topological nature of nonlinear optical effects in solids
journal, May 2016


Observation of Weyl nodes in TaAs
journal, August 2015

  • Lv, B. Q.; Xu, N.; Weng, H. M.
  • Nature Physics, Vol. 11, Issue 9
  • DOI: 10.1038/nphys3426

Weyl semimetal phase in the non-centrosymmetric compound TaAs
journal, August 2015

  • Yang, L. X.; Liu, Z. K.; Sun, Y.
  • Nature Physics, Vol. 11, Issue 9
  • DOI: 10.1038/nphys3425

Using ultrashort optical pulses to couple ferroelectric and ferromagnetic order in an oxide heterostructure
journal, December 2014

  • Sheu, Y. M.; Trugman, S. A.; Yan, L.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms6832

Discovery of Weyl Fermion Semimetals and Topological Fermi Arc States
journal, March 2017


Semiclassical theory of nonlinear magneto-optical responses with applications to topological Dirac/Weyl semimetals
journal, December 2016


Emergent functions of quantum materials
journal, September 2017

  • Tokura, Yoshinori; Kawasaki, Masashi; Nagaosa, Naoto
  • Nature Physics, Vol. 13, Issue 11
  • DOI: 10.1038/nphys4274

Symmetry regimes for circular photocurrents in monolayer MoSe2
journal, August 2018


Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates
journal, May 2011