Atomic spin resonance in a rubidium beam obliquely incident to a transmission magnetic grating. (29th February 2016)

• Record Type: Journal Article
• Authors: Hatakeyama, A; Goto, K
• Is Part Of: Journal of physics. Volume 49:Number 6(2016:Mar. 15)
• Publication Date: 2016-02-29
• Subjects: magnetic resonance -- atomic beam -- magnetic film; 32.30.Dx -- 32.80.Xx -- 75.70.-i; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/0953-4075/49/6/065005
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We studied atomic spin resonance induced by atomic motion in a spatially periodic magnetostatic field. A rubidium atomic beam, with a velocity of about 400 m s −1, was obliquely incident to a transmission magnetic grating that produced a spatially periodic magnetic field. The magnetic grating was formed by a magnetic thin film on a polyimide substrate that had multiple slits at 150 μ m intervals. The atoms experienced field oscillation, depending on their velocity and the field period when passing through the grating, and underwent magnetic resonance. Resonance spectra obtained with a perpendicular magnetization film were in clear contrast to ones obtained with an in-plane magnetization film. The former exhibited resonance peaks at odd multiples of the frequency, determined by the velocity over the period, while the latter had dips at the same frequencies.