Gate-tunable terahertz emission at oxide interfaces via ultrafast spin-to-charge current conversion

Qi Zhang; Deshun Hong; Changjiang Liu; Richard D Schaller; Dillon Fong; Anand Bhattacharya; Haidan Wen

doi:10.1364/CLEO-QELS.2019.FM4D.7

Gate-tunable terahertz emission at oxide interfaces via ultrafast spin-to-charge current conversion

Qi Zhang, Deshun Hong, Changjiang Liu, Richard D Schaller, Dillon Fong, Anand Bhattacharya, Haidan Wen

Northwestern University, Argonne National Laboratory

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We demonstrate gate-tunable spintronic terahertz (THz) emission at the interface of LaAlO₃/SrTiO₃ due to ultrafast spin-to-charge current conversion. The soft phonon mode of SrTiO₃ is also observed in the emitted THz spectra.

Original language	English
Title of host publication	CLEO
Subtitle of host publication	QELS_Fundamental Science, CLEO_QELS 2019
Publisher	OSA - The Optical Society
ISBN (Electronic)	9781557528209
DOIs	https://doi.org/10.1364/CLEO-QELS.2019.FM4D.7
Publication status	Published - Jan 1 2019
Event	CLEO: QELS_Fundamental Science, CLEO_QELS 2019 - San Jose, United States Duration: May 5 2019 → May 10 2019

Publication series

Name	Optics InfoBase Conference Papers
Volume	Part F128-CLEO_QELS 2019

Conference

Conference	CLEO: QELS_Fundamental Science, CLEO_QELS 2019
Country	United States
City	San Jose
Period	5/5/19 → 5/10/19

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ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Mechanics of Materials

Cite this

Zhang, Q., Hong, D., Liu, C., Schaller, R. D., Fong, D., Bhattacharya, A., & Wen, H. (2019). Gate-tunable terahertz emission at oxide interfaces via ultrafast spin-to-charge current conversion. In CLEO: QELS_Fundamental Science, CLEO_QELS 2019 (Optics InfoBase Conference Papers; Vol. Part F128-CLEO_QELS 2019). OSA - The Optical Society. https://doi.org/10.1364/CLEO-QELS.2019.FM4D.7

Gate-tunable terahertz emission at oxide interfaces via ultrafast spin-to-charge current conversion. / Zhang, Qi; Hong, Deshun; Liu, Changjiang; Schaller, Richard D; Fong, Dillon; Bhattacharya, Anand; Wen, Haidan.

CLEO: QELS_Fundamental Science, CLEO_QELS 2019. OSA - The Optical Society, 2019. (Optics InfoBase Conference Papers; Vol. Part F128-CLEO_QELS 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhang, Q, Hong, D, Liu, C, Schaller, RD, Fong, D, Bhattacharya, A & Wen, H 2019, Gate-tunable terahertz emission at oxide interfaces via ultrafast spin-to-charge current conversion. in CLEO: QELS_Fundamental Science, CLEO_QELS 2019. Optics InfoBase Conference Papers, vol. Part F128-CLEO_QELS 2019, OSA - The Optical Society, CLEO: QELS_Fundamental Science, CLEO_QELS 2019, San Jose, United States, 5/5/19. https://doi.org/10.1364/CLEO-QELS.2019.FM4D.7

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abstract = "We demonstrate gate-tunable spintronic terahertz (THz) emission at the interface of LaAlO3/SrTiO3 due to ultrafast spin-to-charge current conversion. The soft phonon mode of SrTiO3 is also observed in the emitted THz spectra.",

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Access to Document

10.1364/CLEO-QELS.2019.FM4D.7