Ca3(Ru1-xCrx)2O7: A new paradigm for spin valves
arXiv:0711.2060 · doi:10.1142/S0217984908016480
Abstract
The spin valve effect is a quantum phenomenon so far only realized in multilayer thin films or heterostructures. Here we report a strong spin valve effect existing in bulk single crystals of Ca3(Ru1-xCrx)2O7 having an anisotropic, bilayered crystal structure. This discovery opens new avenues to understand the underlying physics of spin valves, and fully realize its potential in practical devices.
5 figures. to be published in Physical Review Letters