supported by the National Key Research and Development Program of China(Grant Nos.2023YFF0719200 and 2022YFA1404004);the National Natural Science Foundation of China(Grant Nos.61988102,62322115,61975110,and 62335012);the 111 Project(Grant No.D18014);the Key Project supported by Science and Technology Commission Shanghai Municipality(Grant No.YDZX20193100004960);Science and Technology Commission of Shanghai Municipality(Grant No.22JC1400200);General Administration of Customs People’s Republic of China(Grant No.2019HK006)。
Using THz emission spectroscopy,we investigate the elementary spin dynamics in ferromagnetic single-layer Fe on a sub-picosecond timescale.We demonstrate that THz radiation changes its polarity with reversal of the ma...
We design a pulsed power source based on the technique for explosive-driven demagnetization. The physical process and geometry structure of this power source are described in detail and several formulae are deduced to...