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Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

Condensed Matter Physics

2015

Physics and Astronomy

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Charged Skyrmions On The Surface Of A Topological Insulator, Hilary M. Hurst, Dimitry K. Efimkin, Jiadong Zang, Victor Galitski Feb 2015

Charged Skyrmions On The Surface Of A Topological Insulator, Hilary M. Hurst, Dimitry K. Efimkin, Jiadong Zang, Victor Galitski

Faculty Research, Scholarly, and Creative Activity

We consider the interplay between magnetic skyrmions in an insulating thin film and the Dirac surface states of a 3D topological insulator (TI), coupled by proximity effect. The magnetic texture of skyrmions can lead to confinement of Dirac states at the skyrmion radius, where out of plane magnetization vanishes. This confinement can result in charging of the skyrmion texture. The presence of bound states is robust in an external magnetic field, which is needed to stabilize skyrmions. It is expected that for relevant experimental parameters skyrmions will have a few bound states that can be tuned using an external magnetic …

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The Adsorption Of Polyatomic Molecules On Carbon Surfaces, Jared T. Burde Jan 2015

The Adsorption Of Polyatomic Molecules On Carbon Surfaces, Jared T. Burde

Electronic Theses and Dissertations

Carbon nanotubes exhibit the structure and chemical properties that make them apt substrates for many adsorption applications. Of particular interest are carbon nanotube bundles, whose unique geometry is conducive to the formation of pseudo-one-dimensional phases of matter, and graphite, whose simple planar structure allows ordered phases to form in the absence of surface effects. Although both of these structures have been the focus of many research studies, knowledge gaps still remain. Much of the work with carbon nanotubes has used simple adsorbates1-43, and there is little kinetic data available. On the other hand, there are many studies of …

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