title: Scanning magneto-optical Kerr microscope with auto-balanced detection scheme.
abstract: We have developed a scanning magneto-optical Kerr microscope dedicated to localization and measurement of the in-plane magnetization of ultra-thin layered magnetic nanostructures with high sensitivity and signal-to-noise ratio. The novel light detection scheme is based on a differential photodetector with automatic common mode noise rejection system with a high noise suppression up to 50 dB. The sensitivity of the developed detection scheme was tested by measurement of a single Co layer and a giant magnetoresistance (GMR) multilayer stack. The spatial resolution of the Kerr microscope was demonstrated by mapping an isolated 5×5 μm spin-valve pillar.
authors: Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia. fyzihala@savba.sk
authors: Y
authors: Y
authors: Halahovets
authors: P
authors: P
authors: Siffalovic
authors: M
authors: M
authors: Jergel
authors: R
authors: R
authors: Senderak
authors: E
authors: E
authors: Majkova
authors: S
authors: S
authors: Luby
authors: I
authors: I
authors: Kostic
authors: B
authors: B
authors: Szymanski
authors: F
authors: F
authors: Stobiecki