The spin polarization in certain organic molecules adsorbed on a magnetic surface depends on how strongly the molecules are bound—a property that could be tailored toward making organic spintronics devices.
From conservation laws to selection rules, symmetry arguments have long been revered for their far-reaching consequences in physics. Now they point to an effective spin-orbit coupling in antiferromagnetic conductors.
The efficient injection of polarized spins from magnetic materials into semiconductors, a prerequisite for spintronics applications, is a formidable challenge. With ferromagnetic Co2FeSi it is now possible to achieve a spin injection efficiency of close to 50%.
Spin decoherence is a fundamental obstacle in quantum computation and spintronics. Scientists show they can increase the lifetime of a localized spin in a diamond lattice up to 100 times by polarizing the surrounding spins on the lattice.