Picosecond time-resolved X-ray ferromagnetic resonance measurements at Shanghai synchrotron radiation facility

被引：6
作者：
Yang, Xia [1 ,2 ]
Cao, Jie-Feng [1 ,3 ]
Li, Jun-Qin [1 ,3 ]
Zhu, Fang-Yuan [3 ]
Yu, Rui [3 ]
He, Jian [3 ]
Zhao, Zi-Long [3 ]
Wang, Yong [1 ,3 ]
Tai, Ren-Zhong [1 ,3 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
来源：
NUCLEAR SCIENCE AND TECHNIQUES | 2022年 / 33卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Ferromagnetic resonance; Time resolution; Pump-probe; Synchrotron radiation; CIRCULAR-DICHROISM; SYSTEM; MAGNETORESISTANCE;
D O I：
10.1007/s41365-022-01037-7
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
An experimental picosecond time-resolved X-ray ferromagnetic resonance (TR-XFMR) apparatus with a time resolution of 13 ps (RMS) or 31 ps (FWHM) was constructed and demonstrated in the 07U and 08U1A soft X-ray beamlines at the Shanghai Synchrotron Radiation Facility (SSRF) using pump-probe detection and X-ray magnetic circular dichroism (XMCD) spectroscopy. Element and time-resolved ferromagnetic resonance was excited by continuous microwave phase-locking of the bunch clock within the photon beam during synchrotron radiation and was characterized by detecting the magnetic circular dichroism signals of the elements of interest in the magnetic films. Using this equipment, we measured the amplitude of the element-specific moment precession during ferromagnetic resonance (FMR) at 2 GHz in a single Ni81Fe19 layer.
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页数：9
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