409 citations
- City University of New YorkUS415 papers
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59 papers · 1 filter
Melting and Freezing of a Skyrmion Lattice
Dmitry A. Garanin, Jorge F. Soriano, Eugene M. Chudnovsky
We report comprehensive Monte-Carlo studies of the melting of skyrmion lattices in systems of small, medium, and large sizes with the number of skyrmions ranging from to o…
Dynamics of the collapse of a ferromagnetic skyrmion in a centrosymmetric lattice
A. Derras-Chouk, E. M. Chudnovsky, D. A. Garanin
Time dependence of the size and chirality of a ferromagnetic skyrmion in a Heisenberg model with the magnetic field on a square lattice has been studied analytically and numericall…
Investigation of photon emitters in Ce-implanted hexagonal boron nitride
Gabriel I. López-Morales, Mingxing Li, Alexander Hampel +9
Color centers in hexagonal boron nitride (hBN) are presently attracting broad interest as a novel platform for nanoscale sensing and quantum information processing. Unfortunately,…
Quantum States of a Skyrmion in a 2D Antiferromagnet
A. Derras-Chouk, E. M. Chudnovsky, D. A. Garanin
Quantum states of a skyrmion in a 2D antiferromagnetic lattice are obtained by quantizing the scaling parameter of Belavin-Polyakov model. Skyrmion classical collapse due to violat…
Conservation of Angular Momentum in the Elastic Medium with Spins
Dmitry A. Garanin, Eugene M. Chudnovsky
Exact conservation of the angular momentum is worked out for an elastic medium with spins. The intrinsic anharmonicity of the elastic theory is shown to be crucial for conserving t…
Skyrmions Near Defects
Amel Derras-Chouk, Eugene M. Chudnovsky
We study the impact of an exchange-reducing defect on a skyrmion for a thin film of finite thickness. Attraction of the skyrmion to a defect is demonstrated in a lattice model by c…