Advanced Functional Materials
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor-in-Chief: Joern Ritterbusch, Deputy Editors: Mary De Vita, Yan Li
Online ISSN: 1616-3028
Associated Title(s): Advanced Electronic Materials, Advanced Energy Materials, Advanced Engineering Materials, Advanced Healthcare Materials, Advanced Materials, Advanced Materials Interfaces, Advanced Materials Technologies, Advanced Optical Materials, Advanced Science, Particle & Particle Systems Characterization, Small
Spintronics: Large Tunnel Magnetoresistance in Epitaxial Oxide Spin-Filter Tunnel Junctions (Adv. Funct. Mater. 21/2012)
A spin-polarized-current generator is a fundamental device in spintronics. As reported on page 4471, Isao Ohkubo and co-workers have developed a highperformance spin-filter tunnel junction by growing an atomic-layer-controlled oxide multilayer. In this device, up-spin electrons can selectively tunnel through a nanometer-thick ferromagnetic insulator, while down-spin electrons are reflected. The image shows a false-colored cross-sectional transmission electron microscope image of the device.