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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">Please join us TODAY for the Condensed Matter Experiment Seminar presented by Mark D. Stiles, Institute for Standards and Technology at 11:30am in the Smith Seminar Room (1080
PRB).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">"Spin Current: the Torque Wrench of Spintronics"<o:p></o:p></span></p>
<p><span lang="EN" style="font-family:"Georgia","serif"">Spintronic devices use the spin of the electron as well as its charge. The current in these devices is spin polarized, due to the inclusion of ferromagnetic materials, so that their conductance depends
on the state of the ferromagnet. This dependence allows these devices to serve as sensitive magnetic field detectors or as memory elements, in which information is stored in the magnetic state. However, not only does the polarized current depend on the magnetic
configuration, but the spin current can manipulate the magnetic state. This recent development has led to rapid progress in novel memory devices. In this talk, I mention existing and proposed spintronic devices and describe the variety of ways in which the
spin current can manipulate the magnetization. I focus on systems consisting of bilayers of ferromagnetic thin films on top of non-magnetic films with strong spin orbit coupling. Recent measurements on these systems have shown dramatic effects, but the interpretation
of the experiments is still controversial, making it a fast moving exciting field.<o:p></o:p></span></p>
<p><span lang="EN" style="font-family:"Georgia","serif"">Thank you,<o:p></o:p></span></p>
<p><span lang="EN" style="font-family:"Georgia","serif"">Trisch<o:p></o:p></span></p>
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