Berlin 2012 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

MA: Fachverband Magnetismus

MA 40: PhD Student Symposium: "Spintronics on the Way to modern Storage Technology I", Organization: "Univ. Mainz team"

MA 40.2: Topical Talk

Thursday, March 29, 2012, 10:30–11:00, BH 243

Functional materials for spintronics, magnetic devices and magnetization dynamics — •Günter Reiss¹, Andreas Hütten¹, Jan Schmalhorst¹, Markus Meinert¹, Daniel Ebke¹, Andy Thomas¹, Hans-Werner Schumacher², Markus Münzenberg³, and Sergej Demokritov⁴ — ¹Physics Department, Bielefeld University, Bielefeld, Germany — ²PTB Braunschweig, Braunschweig, Germany — ³Physics Department, Göttingen University, Göttingen, Germany — ⁴Physics Department, Münster University, Münster, Germany

Spintronics uses the magnetic moment of electrons to process and store information or to sense magnetic fields. The corresponding devices are usually built from stacks of different thin films such as ferro-, ferri- and antiferromagnets, insulators, seed layers and conductors. The properties of the materials and the various interfaces are the key enablers for the device functionality. Using magnetic tunnel junctions (MTJs) capable of spin torque transfer switching as example we present the challenges of applications and discuss recent advances in using either traditional material combinations such as CoFeB/MgO or new materials such as Heusler alloys and magnetically perpendicular materials. In all stacks, magnetization and damping are key parameters and thus important dynamic properties will be discussed as well. In the last part, new memristive properties will be presented which could enable mimicking brain operations with MTJs.