3 research outputs found
Rotating edge-field driven processing of chiral spin textures in racetrack devices
Topologically distinct magnetic structures like skyrmions, domain walls, and
the uniformly magnetized state have multiple applications in logic devices,
sensors, and as bits of information. One of the most promising concepts for
applying these bits is the racetrack architecture controlled by electric
currents or magnetic driving fields. In state-of-the-art racetracks, these
fields or currents are applied to the whole circuit. Here, we employ
micromagnetic and atomistic simulations to establish a concept for racetrack
memories free of global driving forces. Surprisingly, we realize that mixed
sequences of topologically distinct objects can be created and propagated over
far distances exclusively by local rotation of magnetization at the sample
boundaries. We reveal the dependence between the chirality of the rotation and
the direction of propagation and define the phase space where the proposed
procedure can be realized. The advantages of this approach are the exclusion of
high current and field densities as well as its compatibility with an
energy-efficient three-dimensional design.Comment: 23 pages, 7 figure
Meeting the Challenges of Generational Change in the Teaching Profession : Towards a European Model for Intergenerational Teacher Collaboration
In a European-wide effort to improve the professional development of teachers, the 2AgePro project was conducted from November 2008 to October 2010. One of its goals was to develop and test different forms of intergenerational teacher collaboration among junior and senior teachers in primary and secondary schools. Another aim was to utilise the results from these pilots, which were conducted in the Czech Republic, Finland, Germany, the Netherlands, and Sweden, to create a model for intergenerational collaboration that could be used in any national or cultural setting. This article reports on the national pilots and proposes a European model for intergenerational collaboration for teachers.2AgePr