Publication Date:
2005-01-18
Description:
We present time-resolved measurements of gigahertz-scale magnetic dynamics caused by torque from a spin-polarized current. By working in the time domain, we determined the motion of the magnetic moment throughout the process of spin-transfer-driven switching, and we measured turn-on times of steady-state precessional modes. Time-resolved studies of magnetic relaxation allow for the direct measurement of magnetic damping in a nanomagnet and prove that this damping can be controlled electrically using spin-polarized currents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krivorotov, I N -- Emley, N C -- Sankey, J C -- Kiselev, S I -- Ralph, D C -- Buhrman, R A -- New York, N.Y. -- Science. 2005 Jan 14;307(5707):228-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cornell University, Ithaca, NY 14853, USA. ink3@cornell.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15653496" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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