Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Far-infrared detection using Weyl semimetals

Patent ·
OSTI ID:1489040

The generation of photocurrent in an ideal two-dimensional Dirac spectrum is symmetry forbidden. In sharp contrast, a three-dimensional Weyl semimetal can generically support significant photocurrent due to the combination of inversion symmetry breaking and finite tilts of the Weyl spectrum. To realize this photocurrent, a noncentrosymmetric Weyl semimetal is coupled to a pair of electrodes and illuminated with circularly polarized light without any voltage applied to the Weyl semimetal. The wavelength of the incident light can range over tens of microns and can be adjusted by doping the Weyl semimetal to change its chemical potential.

Research Organization:
Massachusetts Institute of Technology, Cambridge, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-03ER46076; FG02-08ER46521
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Number(s):
10,090,466
Application Number:
15/656,373
OSTI ID:
1489040
Country of Publication:
United States
Language:
English

References (46)

Charge Transport in Weyl Semimetals journal January 2012
Type-II Weyl semimetals journal November 2015
Nonlinear photogalvanic effect induced by monopolar spin orientation of holes in QWs journal May 2001
Terahertz achromatic quarter wave plate: Design, fabrication, and characterization journal January 2013
When Chiral Photons Meet Chiral Fermions: Photoinduced Anomalous Hall Effects in Weyl Semimetals journal January 2016
Direct optical detection of Weyl fermion chirality in a topological semimetal journal May 2017
Gyrotropic Magnetic Effect and the Magnetic Moment on the Fermi Surface journal February 2016
Visualizing weakly bound surface Fermi arcs and their correspondence to bulk Weyl fermions journal August 2016
Giant anisotropic nonlinear optical response in transition metal monopnictide Weyl semimetals journal December 2016
Chiral anomaly and transport in Weyl metals journal February 2015
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class journal June 2015
Topological nodal semimetals journal December 2011
Quantum transport in Dirac materials: Signatures of tilted and anisotropic Dirac and Weyl cones journal March 2015
MoTe 2 : A Type-II Weyl Topological Metal journal July 2016
Terahertz achromatic quarter-wave plate journal January 2006
Photocurrents in Weyl semimetals journal January 2017
Control over topological insulator photocurrents with light polarization journal December 2011
Discovery of a Weyl fermion state with Fermi arcs in niobium arsenide journal August 2015
Chiral Anomaly and Giant Magnetochiral Anisotropy in Noncentrosymmetric Weyl Semimetals journal September 2016
Optical Gyrotropy from Axion Electrodynamics in Momentum Space journal September 2015
Shift charge and spin photocurrents in Dirac surface states of topological insulator journal January 2017
Dirac Fermions in Solids: From High-T c Cuprates and Graphene to Topological Insulators and Weyl Semimetals journal March 2014
Enhanced photogalvanic current in topological insulators via Fermi energy tuning journal February 2016
Spin resonance in a quantum wire: Anomalous effects of an applied magnetic field journal February 2012
Experimental Discovery of Weyl Semimetal TaAs journal July 2015
Colloquium: Topological insulators journal November 2010
Weyl Semimetal Phase in Noncentrosymmetric Transition-Metal Monophosphides journal March 2015
Topological insulators and superconductors journal October 2011
Infrared broadband quarter-wave and half-wave plates synthesized from anisotropic Bézier metasurfaces journal January 2014
Photovoltaic chiral magnetic effect in Weyl semimetals journal May 2016
Generation of Transient Photocurrents in the Topological Surface State of Sb 2 Te 3 by Direct Optical Excitation with Midinfrared Pulses journal February 2016
Emergent Electromagnetic Induction and Adiabatic Charge Pumping in Noncentrosymmetric Weyl Semimetals journal November 2016
Circular photogalvanic effect on topological insulator surfaces: Berry-curvature-dependent response journal January 2011
Magnetic Breakdown and Klein Tunneling in a Type-II Weyl Semimetal journal June 2016
Landau quantization and quasiparticle interference in the three-dimensional Dirac semimetal Cd3As2 journal June 2014
π Berry phase and Zeeman splitting of Weyl semimetal TaP journal January 2016
Scaling laws for nonlinear electromagnetic responses of Dirac fermion journal March 2016
Polarization-dependent photocurrents in polar stacks of van der Waals solids journal December 2015
Photocurrent response of topological insulator surface states journal August 2013
Advances in mid-infrared detection and imaging: a key issues review journal August 2014
High Performance Room Temperature Rectenna IR Detectors Using Graphene Geometric Diodes journal November 2014
Photodetectors based on graphene, other two-dimensional materials and hybrid systems journal October 2014
Experimental discovery of a topological Weyl semimetal state in TaP journal November 2015
The electronic properties of graphene journal January 2009
Discovery of a Weyl fermion semimetal and topological Fermi arcs journal July 2015
Quantized circular photogalvanic effect in Weyl semimetals journal July 2017

Similar Records

Photocurrents in Weyl semimetals
Journal Article · Thu Jan 12 23:00:00 EST 2017 · Physical Review. B · OSTI ID:1535835

Tracking Ultrafast Photocurrents in the Weyl Semimetal TaAs Using THz Emission Spectroscopy
Journal Article · Wed May 15 00:00:00 EDT 2019 · Physical Review Letters · OSTI ID:1542840

Related Subjects