Curvature effects in statics and dynamics of low dimensional magnets
- Date
- Jan 20, 2016
- Time
- 11:00 AM - 12:00 PM
- Speaker
- Dr. Volodymyr Kravchuk
- Affiliation
- IFW Dresden, ITF
- Language
- en
- Main Topic
- Materialien
- Other Topics
- Materialien, Physik
- Host
- Grit Rötzer
- Description
- An approach to treat magnetic energy of a ferromagnet for arbitrary curved wires and shells is proposed. It is shown that the curvature induces two effective magnetic interactions: effective magnetic anisotropy and an effective Dzyaloshinskii-like interaction. A variety of new effects are predicted using this approach: (i) a torsion induced symmetry breaking appears in dispersion relation for magnons in a helix shaped wire; (ii) a local wire bend is a source of pinning potential for a domain wall; (iii) the spin-current driven domain wall motion along a helix wire experiences the curvature induced Walker limit shift and the torsion induced shift of the nonadiabatic parameter; (iv) a coupling of chirality of the magnetization structure and geometrical chirality the curvilinear magnet can appear. .
- Links
Last modified: Jan 20, 2016, 8:59:31 AM
Location
Leibniz Institut für Festkörper- und Werkstoffforschung Dresden (A2E.30, IFW Dresden)Helmholtzstraße2001069Dresden
- Homepage
- http://www.ifw-dresden.de
Organizer
Leibniz Institut für Festkörper- und Werkstoffforschung DresdenHelmholtzstraße2001069Dresden
- Homepage
- http://www.ifw-dresden.de
Scan this code with your smartphone and get directly this event in your calendar. Increase the image size by clicking on the QR-Code if you have problems to scan it.
Legend
- Biology
- Chemistry
- Civil Eng., Architecture
- Computer Science
- Economics
- Electrical and Computer Eng.
- Environmental Sciences
- for Pupils
- Law
- Linguistics, Literature and Culture
- Materials
- Mathematics
- Mechanical Engineering
- Medicine
- Physics
- Psychology
- Society, Philosophy, Education
- Spin-off/Transfer
- Traffic
- Training
- Welcome