Time-resolved measurement of spin excitations in Cu2 OSeO3

doi:10.1103/PhysRevB.106.174409

	Time-resolved measurement of spin excitations in Cu2 OSeO3
	Burn, D. M.1; Zhang, S. L.2,3 ; van der Laan, G.1; Hesjedal, T.4
	2022-11-01
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
EISSN	2469-9969
卷号	106 期号:17
发表状态	已发表
DOI	10.1103/PhysRevB.106.174409
摘要	Magnetic diffraction in combination with x-ray detected ferromagnetic resonance (DFMR) is a powerful technique for performing time-resolved measurements on individual spin textures. Here, we study the ferromagnetic resonance (FMR) modes of both the conical and field-polarized phases in the chiral magnet Cu2OSeO3. Following the identification of the FMR modes at different temperatures using broadband vector network analyzer FMR, we use DFMR on the crystalline (001) Bragg peak to reveal the time-dependent spin configurations of the selected FMR modes. By being able to measure both the amplitude and phase response of the spin system across the resonance, a continuous phase advance (of 180) in the conical mode and a phase lag (of 180) in the field-polarized mode is found. By performing dynamic measurements in the conical phase as a function of the linear polarization angle of the x rays, i.e., successively probing the dynamics of the moments, we find an inversion of the dynamics along the conical axis upon inverting the applied field direction. By allowing for time-resolved measurements of the phase and amplitude of individual magnetic phases, DFMR opens up new opportunities for obtaining a deeper understanding of the complex dynamics of chiral magnets. © 2022 American Physical Society.
关键词	Dynamics Electric network analyzers Ferromagnetic materials Ferromagnetism Magnets Spin dynamics Textures Bragg peaks Chiral magnets Ferromagnetic-resonance modes Magnetic diffraction Measurements of Polarized phasis Spin excitation Spin textures Time resolved measurement Vector-network analyzers
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收录类别	EI ; SCI ; SCIE
语种	英语
资助项目	[EP/N032128/1]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000885458000003
出版者	American Physical Society
EI入藏号	20224713154633
EI主题词	Ferromagnetic resonance
EI分类号	701.2 Magnetism: Basic Concepts and Phenomena ; 708.4 Magnetic Materials ; 931.3 Atomic and Molecular Physics
原始文献类型	Journal article (JA)
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/251435
专题	物质科学与技术学院_PI研究组_张石磊组
通讯作者	Burn, D. M.
作者单位	1.Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 3.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 200031, Peoples R China 4.Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, Oxon, England
推荐引用方式 GB/T 7714	Burn, D. M.,Zhang, S. L.,van der Laan, G.,et al. Time-resolved measurement of spin excitations in Cu2 OSeO3[J]. PHYSICAL REVIEW B,2022,106(17).
APA	Burn, D. M.,Zhang, S. L.,van der Laan, G.,&Hesjedal, T..(2022).Time-resolved measurement of spin excitations in Cu2 OSeO3.PHYSICAL REVIEW B,106(17).
MLA	Burn, D. M.,et al."Time-resolved measurement of spin excitations in Cu2 OSeO3".PHYSICAL REVIEW B 106.17(2022).