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MA: Magnetismus

MA 13: Poster:Schichten(1-23),Spinabh.Trsp(24-41),Exch.Bias(42-56),Spindyn.(57-67),Mikromag.(68-76),Partikel(77-90),Spinelektr.(91-97),Elektr.Theo.(98-99),Mikromag+PhasÜ+Aniso.(100-105),Magn.Mat.(106-118),Messmethod.(119-121),Obflm.+Abbverf.(122-123)

MA 13.119: Poster

Dienstag, 9. März 2004, 15:00–19:00, Bereich A

Design for a low temperature spin-polarized scanning tunnelling microscope — •Nathaniel Janke-Gilman, Wulf Wulfhekel, and Jürgen Kirschner — Max Planck Institut für Mikrostrukturphysik

We present the design of a new ultrahigh vacuum (UHV) spin polarized scanning tunnelling microscope (SP-STM). The apparatus is designed to operate inside a closed 4K chamber, allowing for excellent vacuum conditions and exceedingly long sample lifetimes. Magnetic fields of up to 0.5 Tesla may be applied at the sample position in the parallel or perpendicular direction either before or during SP-STM operation. Sample and tip exchange is possible with visual control. Both in-plane and out-of-plane spin polarization is measurable by using either a ring or sharp tip at the tunnelling junction, respectively.