Mar 31, 2023 · We evidence, experimentally and through modeling, two excitation processes of spin dynamics in NiO: an off-resonant instantaneous optical spin torque in (111) oriented films …

Nov 21, 2010 · Single-cycle terahertz pulses switch on and off coherent spin waves in antiferromagnetic NiO at frequencies as high as 1 THz. An optical probe pulse with a duration …

Nov 16, 2020 · In this study, we report the optical generation of ultrafast spin current in an AFM/HM heterostructure that comprises NiO and Pt, which we detect with THz emission …

In this study, a frequency-domain terahertz (THz) spectroscopy technique using continuously tunable photomixers was applied to a single-crystalline NiO, and magnetic field dependence of …

Feb 2, 2025 · In the plain NiO case, THz radiation of interest to applications is insignificant, but adding SOC enhances both current and magnetic dipole contributions to it. Above THz range, …

Feb 15, 2024 · To measure the antiferromagnetic magnon mode in NiO, we built a terahertz time-domain spectroscopy (THz-TDS) system, as illustrated in Fig. 1(b). In our experiment, we used …

Jul 7, 2020 · In this work, we demonstrate that the THz resonance properties, such as resonant frequency and the Q factor, of antiferromagnetic NiO can be controlled over a wide range by …

We have studied the ultrafast magnon dynamics in an antiferromagnetic 3d-transition-metal monoxide, nickel oxide (NiO), using optical pump-probe spectroscopy and terahertz time …

Sep 25, 2017 · In this study, we investigate the ultrafast magnon dynamics in an antiferromagnetic 3d-transition-metal monoxide, nickel oxide (NiO), using optical pump-probe …

Jan 19, 2024 · THz time-domain spectroscopy examines the influence of the antiferromagnetic interlayer in the THz emission, showing that the NiO interlayer in particular is able to transport …