Imaging magnetic responses of nanomagnets by XPEEM
| Autor: | Michael Farle, Oliver Sandig, Julia Herrero-Albillos, Julia Kurde, T. Noll, F. M. Römer, Nina Friedenberger, Florian Kronast |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Radiation
Materials science Condensed matter physics Magnetic resonance microscopy Magnetic resonance force microscopy Physik (inkl. Astronomie) Condensed Matter Physics Magnetic susceptibility Nanomagnet Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Magnetic field Magnetization Nuclear magnetic resonance Curie temperature Physical and Theoretical Chemistry Magnetic force microscope Spectroscopy |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | The Spin-resolved Photoelectron Emission Microscope (SPEEM) is a permanently installed set-up at Helmholtz-Zentrum Berlin (HZB). Due to its specific contrast it is mainly used for magnetic imaging and micro-spectroscopy with quantitative analysis. A crucial point in magnetic imaging is the application of magnetic fields. Many experiments require observation of magnetic responses or the preparation of a certain magnetic state during the measurement. We present a dedicated magnetic sample holder combining magnetic field during imaging with additional temperature control. This set-up enables SPEEM to measure magnetization curves of individual Fe nanocubes (18 nm) 3 in size. If additionally alternating magnetic fields are applied we can image the local magnetic AC susceptibility (χAC) as a function of temperature. The latter is ideally suited to visualize local variations of the Curie temperature (TC) in nano- and microstructures. © 2012 Elsevier B.V. Support by F. Nolting is acknowledged for the design of the sample holder. J. H-A acknowledges financial support by MAT 2011/23791. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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