Theory of a magnetic microscope with nanometer resolution
| dc.creator | Johansson, Peter | |
| dc.creator | Apell, S. Peter | |
| dc.creator | Penn, D. R. | |
| dc.date | 2001-02-13 | |
| dc.date.accessioned | 2026-07-07T02:40:22Z | |
| dc.date.available | 2026-07-07T02:40:22Z | |
| dc.description | We propose a theory for a type of apertureless scanning near field microscopy that is intended to allow the measurement of magnetism on a nanometer length scale. A scanning probe, for example a scanning tunneling microscope (STM) tip, is used to scan a magnetic substrate while a laser is focused on it. The electric field between the tip and substrate is enhanced in such a way that the circular polarization due to the Kerr effect, which is normally of order 0.1% is increased by up to two orders of magnitude for the case of a Ag or W tip and an Fe sample. Apart from this there is a large background of circular polarization which is non-magnetic in origin. This circular polarization is produced by light scattered from the STM tip and substrate. A detailed retarded calculation for this light-in-light-out experiment is presented. | |
| dc.description | 17 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0102226 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0102226 | |
| dc.identifier | Phys. Rev. B 64, 054411 (2001). | |
| dc.identifier | doi:10.1103/PhysRevB.64.054411 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17355 | |
| dc.subject | Condensed Matter | |
| dc.title | Theory of a magnetic microscope with nanometer resolution | |
| dc.type | text |