TY - JOUR
T1 - Coherent control of asymmetric spintronic terahertz emission from two-dimensional hybrid metal halides
AU - Cong, Kankan
AU - Vetter, Eric
AU - Yan, Liang
AU - Li, Yi
AU - Zhang, Qi
AU - Xiong, Yuzan
AU - Qu, Hongwei
AU - Schaller, Richard D.
AU - Hoffmann, Axel
AU - Kemper, Alexander F.
AU - Yao, Yongxin
AU - Wang, Jigang
AU - You, Wei
AU - Wen, Haidan
AU - Zhang, Wei
AU - Sun, Dali
N1 - Funding Information:
E.V. and D.S. acknowledge supports from US National Science Foundation, ECCS-1933297. W.Z. acknowledges partial supports from Michigan Space Grant Consortium, Air-Force Office of Scientific Research under award no. FA9550-19-1-0254, and US National Science Foundation, ECCS-1933301. L.Y. and W.Y. acknowledge supports from US National Science Foundation, ECCS-1933324, and the Center for Hybrid Organic Inorganic Semiconductors for Energy (CHOISE), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. K.C. and H.W. at Argonne are supported by the U.S. Department of Energy, Office of Science, Materials Science Engineering Division, as well as under contract no. DE-SC0012509. Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Basic Energy Science, under contract no. DE-AC02-06CH11357. J.W. and Y.Y. were supported by the Ames Laboratory, the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division under Contract No. DE-AC02-07CH11358. XRD and AFM were performed in part at the Chapel Hill Analytical and Nanofabrication Laboratory, CHANL, a member of the North Carolina Research Triangle Nanotechnology Network, RTNN, which is supported by the US National Science Foundation, Grant ECCS-1542015, as part of the National Nanotechnology Coordinated Infrastructure, NNCI. CD measurement was performed at the UNC Macromolecular Interactions Facility, supported by the National Cancer Institute of the US National Institutes of Health under Award No. P30CA016086. We thank Prof. Yizheng Wu of Fudan University for beneficial discussion.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - Next-generation terahertz (THz) sources demand lightweight, low-cost, defect-tolerant, and robust components with synergistic, tunable capabilities. However, a paucity of materials systems simultaneously possessing these desirable attributes and functionalities has made device realization difficult. Here we report the observation of asymmetric spintronic-THz radiation in Two-Dimensional Hybrid Metal Halides (2D-HMH) interfaced with a ferromagnetic metal, produced by ultrafast spin current under femtosecond laser excitation. The generated THz radiation exhibits an asymmetric intensity toward forward and backward emission direction whose directionality can be mutually controlled by the direction of applied magnetic field and linear polarization of the laser pulse. Our work demonstrates the capability for the coherent control of THz emission from 2D-HMHs, enabling their promising applications on the ultrafast timescale as solution-processed material candidates for future THz emitters.
AB - Next-generation terahertz (THz) sources demand lightweight, low-cost, defect-tolerant, and robust components with synergistic, tunable capabilities. However, a paucity of materials systems simultaneously possessing these desirable attributes and functionalities has made device realization difficult. Here we report the observation of asymmetric spintronic-THz radiation in Two-Dimensional Hybrid Metal Halides (2D-HMH) interfaced with a ferromagnetic metal, produced by ultrafast spin current under femtosecond laser excitation. The generated THz radiation exhibits an asymmetric intensity toward forward and backward emission direction whose directionality can be mutually controlled by the direction of applied magnetic field and linear polarization of the laser pulse. Our work demonstrates the capability for the coherent control of THz emission from 2D-HMHs, enabling their promising applications on the ultrafast timescale as solution-processed material candidates for future THz emitters.
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U2 - 10.1038/s41467-021-26011-6
DO - 10.1038/s41467-021-26011-6
M3 - Article
C2 - 34593814
AN - SCOPUS:85116378836
VL - 12
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 5744
ER -