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)


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
Issue number4
Publication statusPublished - 2017 Jan 1
Externally publishedYes


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

ASJC Scopus subject areas

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

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