Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
Controlled creation of quantum skyrmions
oleh: Pia Siegl, Elena Y. Vedmedenko, Martin Stier, Michael Thorwart, Thore Posske
Format: | Article |
---|---|
Diterbitkan: | American Physical Society 2022-05-01 |
Deskripsi
We study the creation of quantum skyrmions in quadratic nanoscopic lattices of quantum spins coupled by Dzyaloshinkii-Moriya and exchange interactions. We numerically show that different kinds of quantum skyrmions, characterized by the magnitude of their spin expectation values and strong differences in their stability, can appear as ground state and as metastable excitations. In dependence on the coupling strengths and the lattice size, the adiabatic rotation of magnetic control fields at the boundary allows for the creation of quantum skyrmions.