Toyota Jidosha Kabushiki Kaisha

Centre National De La Recherche Scientifique

Paul Scherrer Institut

University of Sheffield

Leibniz Institute for Solid State and Materials Research Dresden

Leibniz-institut Für Festkörper-und Werkstoffforschung Dresden E.v.

Thomas Schrefl

Tetsuya Shoji

Akira Kato

Noritsugu Sakuma

Hidefumi Kishimoto

Thomas A Jung

Nora Dempsey

Laura Heyderman

Oliver Gutfleisch

Elena Mengotti

Hans-Benjamin Braun

Dominique Givord

Gino Hrkac

André Bisig

Arantxa Fraile Rodríguez

Frithjof Nolting

Thomas George Woodcock

Thomas Georg Woodcock

Olivier Gutfleisch

Hrkac Gino

A rare earth magnet, which is represented by a neodymium magnet (NdFeB) and neodymium magnet films with applications in micro-systems. A method for producing a rare earth magnet, comprising: (a) quenching a molten metal having a rare earth magnet composition to form quenched flakes of nanocrystalline structure; sintering the quenched flakes; subjecting the sintered body obtained to an orientation treatment; and applying a heat treatment with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and at the same time, low enough to prevent coarsening of the crystal grains, (b) thick films deposited on a substrate, applying an annealing to crystallize with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and, at the same time, low enough to prevent coarsening of the crystal grains.

Production method of rare earth magnet

A method and a system for coding and reading out information in a microscopic cluster formed with coupled functional islands includes: generating the cluster by forming a regular microscopic pattern for locating the functional islands; making use of a physical or chemical property of each individual island and making use of the coupling between the functional islands; assigning different information to different energy levels of the cluster; effecting a change of the physical or chemical property of at least one functional island in order to change the energy level of the cluster to the energy level equivalent to the information content to be coded; and reading out the information. These measures allow forming a cluster having distinct energy levels, each being assigned to a distinct information content. These systems pave the way for future devices based on clusters of coupled islands and, armed with the complete knowledge of the energy states, the door is opened for use of these finite multistate clustered structures in future spintronic devices, for example for data storage, memory applications or to perform logic operations.

Method and system for coding and read out of information in a microscopic cluster comprising coupled functional islands

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Herzogenburg, Austria

Thomas Schrefl