High-Performance THz Emitters Based on Ferromagnetic/Nonmagnetic Heterostructures

Yang Wu, Mehrdad Elyasi, Xuepeng Qiu, Mengji Chen, Yang Liu, Lin Ke, Hyunsoo Yang

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

Researchers report a THz emitter with excellent performances based on nonmagnetic (NM)/FM heterostructures. The spin currents are first excited by the fs laser beam in the NM/ferromagnetic (FM) heterostructures, and then transient charge currents are generated by the inverse spin Hall effect (ISHE), leading to THz emission out of the structure. The broadband THz waves emitted from the film stacks have a peak intensity exceeding that of 500 μm thick ZnTe crystals.

Original languageEnglish
Article number1603031
JournalAdvanced Materials
Volume29
Issue number4
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes

Keywords

  • THz generation
  • flexible THz sources
  • magnetic heterostructures
  • spintronics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'High-Performance THz Emitters Based on Ferromagnetic/Nonmagnetic Heterostructures'. Together they form a unique fingerprint.

  • Cite this