Reimar Spohr

Title: Reimar Spohr: Innovator in Magnetic Memory Technology

Introduction

Reimar Spohr is a notable inventor based in Darmstadt-Wixhausen, Germany. He has made significant contributions to the field of magnetic memory technology, holding 2 patents that showcase his innovative approach to information storage.

Latest Patents

His latest patents include a method of making a magnetic memory layer. This magnetic layer is designed for storing information in the form of a fixed, two-dimensional array of magnetic domains. The magnetic layer can be magnetized in either of two opposite directions normal to the plane of the layer. The walls of the domains are fixed by local gradients in the value and direction of the magnetic anisotropy and in the value and direction of the magnetic exchange energy of the magnetic layer. The local gradients may be caused by a relatively high defect density at the domain wall locations, by implanting ions into the magnetic layer at the locations of the domain walls, thereby causing a local expansion of the crystal lattice of the layer, and/or by etching a multiplicity of non-connected tapering channels in and substantially perpendicular to the plane of the magnetic layer at these locations. Where tapering channels are used, the magnetic layer is provided on a substrate such that the crystal lattice constant of the magnetic layer is different from the crystal lattice constant of the substrate. In another embodiment, the local gradients can be the result of the epitaxial growth of a magnetic layer on a substrate which has a plurality of non-connected etched channels at the domain wall locations.

Career Highlights

Reimar Spohr is currently associated with U.S. Philips Corporation, where he continues to develop innovative technologies in the field of magnetic memory. His work has been instrumental in advancing the understanding and application of magnetic layers for data storage.

Collaborations

He has collaborated with notable coworkers such as Christoph Schmelzer and Jens-Peter Krumme, contributing to a dynamic research environment that fosters innovation.

Conclusion

Reimar Spohr's contributions to magnetic memory technology highlight his role as a leading inventor in the field. His patents reflect a deep understanding of magnetic materials and their applications in modern technology.