The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2018
Filed:
Jul. 21, 2017
Massachusetts Institute of Technology, Cambridge, MA (US);
Ching-Kit Chan, Los Angeles, CA (US);
Patrick A. Lee, Brookline, MA (US);
Netanel Lindner, Aviel, IL;
Gil Refael, Pasadena, CA (US);
Qiong Ma, Cambridge, MA (US);
Suyang Xu, Cambridge, MA (US);
Nuh Gedik, Watertown, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
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.