Rights statement: © 2019 American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Terahertz Optomagnetism
T2 - Nonlinear THz Excitation of GHz Spin Waves in Antiferromagnetic FeBO3
AU - Mashkovich, E. A.
AU - Grishunin, K. A.
AU - Mikhaylovskiy, R. V.
AU - Zvezdin, A. K.
AU - Pisarev, R. V.
AU - Strugatsky, M. B.
AU - Christianen, P. C.M.
AU - Rasing, Th
AU - Kimel, A. V.
N1 - © 2019 American Physical Society
PY - 2019/10/11
Y1 - 2019/10/11
N2 - A nearly single cycle intense terahertz (THz) pulse with peak electric and magnetic fields of 0.5 MV/cm and 0.16 T, respectively, excites both modes of spin resonances in the weak antiferromagnet FeBO3. The high frequency quasiantiferromagnetic mode is excited resonantly and its amplitude scales linearly with the strength of the THz magnetic field, whereas the low frequency quasiferromagnetic mode is excited via a nonlinear mechanism that scales quadratically with the strength of the THz electric field and can be regarded as a THz inverse Cotton-Mouton effect. THz optomagnetism is shown to be more energy efficient than similar effects reported previously for the near-infrared spectral range.
AB - A nearly single cycle intense terahertz (THz) pulse with peak electric and magnetic fields of 0.5 MV/cm and 0.16 T, respectively, excites both modes of spin resonances in the weak antiferromagnet FeBO3. The high frequency quasiantiferromagnetic mode is excited resonantly and its amplitude scales linearly with the strength of the THz magnetic field, whereas the low frequency quasiferromagnetic mode is excited via a nonlinear mechanism that scales quadratically with the strength of the THz electric field and can be regarded as a THz inverse Cotton-Mouton effect. THz optomagnetism is shown to be more energy efficient than similar effects reported previously for the near-infrared spectral range.
U2 - 10.1103/PhysRevLett.123.157202
DO - 10.1103/PhysRevLett.123.157202
M3 - Journal article
AN - SCOPUS:85073437112
VL - 123
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 15
M1 - 157202
ER -