Interface magnetism


Dr. Kay Potzger
Project group leader
Tel.: 0351-260-3244, 2411

Group members

Dr. Rantej Bali

Jonathan Ehrler

Dr. Maciej Oskar Liedke

Dr. Anna Semisalova

Naren Srinivasan

Former group members

Alireza Heidarian
Julius Beck
Alevtina Smekhova

Oguz Yildirim
Steffen Cornelius
Camilo Otalora

Daniel Blaschke
Maik Butterling
Nico Spahn
Falk Meutzner
Armin Haase

Tim Andrae
Kerstin Bernert
Nikolas Blum
Marcel Höwler

Tina Nestler
Julia Osten
Artem Shalimov
Georg Talut
Gufei Zhang
Shengqiang Zhou


-FWIN-G -meeting thursdays at 12:45 (Meeting minutes)


PREM (Preisach simulations)

MBE sample sheet

Further MBE instructions: O:\Labs\MBE_712_108_108a


- Magnetic materials, TUBA Freiberg, summer semester

Magnetic Multilayers

Key investigator

Dr. M. Liedke



Ion beams can induce several kinds of structures at the surface of solids. Those are either point-like defects, which can alter the electronic or magnetic properties of the surface or morphological changes such as self organized ordered ripples induced by ion beam erosion. In-situ deposition of a thin metallic layer onto such a surface can influence its magnetic properties, e.g. magnetic anisotropy. The effects are investigated mainly for oxide/metal interfaces.


Example for a magnetic film exhibiting two independent magnetic anisotropies. The uinidirectional (exchange-bias) anisotropy can be setup in a desired direction with respect to the uniaxial ripple induced anisotropy.

Ripple I (a) Microscopic image of an exchange-bias film deposited on a substrate with self-organized ripples

(c) TEM cross section

Ripple II Magnetic hysteresis curves recorded at two different orientations of both anisotropy contributions.

Left: 1°

Right: 86°


Interlayer exchange coupling of Fe/Cr/Fe thin films on rippled substrates

M. Koerner, K. Lenz, M. O. Liedke, T. Strache, A. Muecklich, A. Keller, S. Facsko, and J. Fassbender

Phys. Rev. B 80, 214401 (2009).

Introducing artificial length scales to tailor magnetic properties

J. Fassbender, T. Strache, M. O. Liedke, D. Marko, S. Wintz, K. Lenz, A. Keller, S. Facsko, I. Moench,and J McCord

New J. Phys. 11, 125002 (2009).

Induced anisotropies in exchange-coupled systems on rippled substrates

M. O. Liedke, B. Liedke, A. Keller, B. Hillebrands, A. Muecklich, S. Facsko, and J. Fassbender

Phys. Rev. B 75, 220407 (2007).