Measurement of hysteresis loop based on weak measurement
- 1 March 2020
- journal article
- research article
- Published by Optica Publishing Group in Optics Letters
- Vol. 45 (5), 1075-1078
- https://doi.org/10.1364/OL.383764
Abstract
In this Letter, we propose a technique for hysteresis loop measurement based on weak measurement. By using the photonic spin Hall effect (PSHE) as a probe and combining the quantum weak measurement, the technique's noise can be suppressed greatly. A theoretical model to describe the numerical relation between the amplified shift and Kerr rotation angle is established. Through detecting the amplified shift of the PSHE based on weak measurement, we experimentally measure the hysteresis loops of Ni-Fe alloy film, iron-phthalocyanine (FePc) monolayer film, and Co/FePc double-layer film. The results show that the precision can reach about similar to 10(-6) rad under ordinary experimental conditions, which may have an important application prospect in magneto-optic parameters measurement. (C) 2020 Optical Society of AmericaFunding Information
- the National Key Research and Development Program (2017YFB0405702)
- National Natural Science Foundation of China (11674234)
- Innovation Project of Sichuan University (2018SCUH0021)
This publication has 37 references indexed in Scilit:
- Quasi-two-dimensional extraordinary Hall effectPhysical Review B, 2009
- Magnetic and transport properties of epitaxial films ofin the ultrathin limitPhysical Review B, 2009
- Towards Hall effect spintronicsJournal of Magnetism and Magnetic Materials, 2006
- Magnetic properties of cobalt and cobalt–platinum nanocrystals investigated by magneto-optical Kerr effectJournal of Applied Physics, 2004
- Switching behavior of Fe-Pt/Ni-Fe exchange-spring films studied by resonant soft-x-ray magneto-optical Kerr effectPhysical Review B, 2000
- Determination of the anisotropy field strength in ultra-thin magnetic films using longitudinal MOKE and a rotating field: the ROTMOKE methodJournal of Magnetism and Magnetic Materials, 1999
- Giant Hall effect in percolating ferromagnetic granular metal-insulator filmsApplied Physics Letters, 1995
- How the result of a measurement of a component of the spin of a spin-1/2particle can turn out to be 100Physical Review Letters, 1988
- Magnetic hysteresis of epitaxially-deposited iron in the monolayer range: A Kerr effect experiment in surface magnetismJournal of Magnetism and Magnetic Materials, 1986
- Negative Transverse Magnetoresistance in Dilute Polycrystalline Alloys ofAuFePhysical Review B, 1972