Journal Article

FZJ-2015-03018

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Unwinding of a Skyrmion Lattice by Magnetic Monopoles

Milde, P. (Corresponding Author) ; Kohler, D. ; Seidel, J. ; Eng, L. M. ; Bauer, A. ; Chacon, A. ; Kindervater, J. ; Muhlbauer, S. ; Pfleiderer, C. ; Buhrandt, S. ; Schutte, C. ; Rosch, A.

2013
American Association for the Advancement of Science64196 Washington, DC [u.a.]

This record in other databases:      

Please use a persistent id in citations: doi:10.1126/science.1234657

Abstract: Skyrmion crystals are regular arrangements of magnetic whirls that exist in a wide range of chiral magnets. Because of their topology, they cannot be created or destroyed by smooth rearrangements of the direction of the local magnetization. Using magnetic force microscopy, we tracked the destruction of the skyrmion lattice on the surface of a bulk crystal of Fe1−xCoxSi (x = 0.5). Our study revealed that skyrmions vanish by a coalescence, forming elongated structures. Numerical simulations showed that changes of topology are controlled by singular magnetic point defects. They can be viewed as quantized magnetic monopoles and antimonopoles, which provide sources and sinks of one flux quantum of emergent magnetic flux, respectively.

Keyword(s): Basic research (1st) ; Others (1st) ; Fundamental Science (1st) ; Information Technology and Functional Materials (1st) ; Energy (1st) ; Condensed Matter Physics (2nd) ; Magnetism (2nd) ; Crystallography (2nd)

---

Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)

Research Program(s):

1. 54G - JCNS (POF2-54G24) (POF2-54G24)

Experiment(s):

1. HEiDi: Single crystal diffractometer on hot source (SR9b)
2. MIRA: Multipurpose instrument (NL6N)
3. SANS-1: Small angle neutron scattering (NL4a)

---

Database coverage:
; BIOSIS Previews ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 30 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

---