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Title: Skyrmion stability in nanocontact spin-transfer oscillators

We investigate the conditions for nanocontact spin-transfer oscillators (NC-STOs) that allow for stabilization of a skyrmion. Emphasis is made on the breathing mode, which can be regarded as a source of microwave generation. Micromagnetic simulations of NC-STOs with varying parameters have been performed, with the resulting magnetization plotted in the form of phase diagrams. It is found that control of spin wave mode in conventional STOs can be applied to skyrmion-based STOs.
Authors:
 [1] ;  [1] ;  [2]
  1. Department of Physics, the University of Hong Kong, Pokfulam (Hong Kong)
  2. (YNJC), School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093 (China)
Publication Date:
OSTI Identifier:
22492346
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 9; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPUTERIZED SIMULATION; MAGNETIZATION; MICROWAVE RADIATION; NANOSTRUCTURES; OSCILLATORS; PHASE DIAGRAMS; SKYRME POTENTIAL; SOLITONS; SPIN; SPIN WAVES; STABILIZATION