%0 Journal Article
%T Towards wafer scale inductive characterization of spin transfer torque critical current density of magnetic tunnel junction stacks
%A Sibylle Sievers
%A Niklas Liebing
%A Santiago Serrano-Guisan
%A Ricardo Ferreira
%A Elvira Paz
%A Ambra Caprile
%A Alessandra Manzin
%A Massimo Pasquale
%A Witold Skowro¨½ski
%A Tomasz Stobiecki
%A Karsten Rott
%A G¨¹nter Reiss
%A J¨¹rgen Langer
%A Berthold Ocker
%A Hans Werner Schumacher
%J Physics
%D 2014
%I arXiv
%X We explore the prospects of wafer scale inductive probing of the critical current density $j^{c0}$ for spin transfer torque switching of a CoFeB/MgO/CoFeB magnetic tunnel junction with varying MgO thickness. From inductive measurements magnetostatic parameters and the effective damping are derived and $j^{c0}$ is calculated based on spin transfer torque equations. The inductive values compare well to the values derived from current induced switching measurements on individual nanopillars. Using a wafer scale inductive probe head could in the future enable wafer probe station based metrology of $j^{c0}$.
%U http://arxiv.org/abs/1411.4868v1