Kyushu Institute of Technology Academic Repository
Kyutacarは九州工業大学で生産された研究成果を オープンアクセスで提供する機関リポジトリシステムです。 Kyutacar is open-access repository of research by members of the Kyushu Institute of Technology.
Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan, Chirality Research Center, Hiroshima University, Higashihiroshima 739-8526, Japan
RIKEN SPring-8 Center, Hyogo 679-5148, Japan
Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
Chirality Research Center, Hiroshima University, Higashihiroshima 739-8526, Japan, Department of Physics and Electronics, Osaka Prefecture University, Sakai 599-8570, Japan
Department of Basic Science, The University of Tokyo, Tokyo 153-8902, Japan
Department of Basic Science, The University of Tokyo, Tokyo 153-8902, Japan, Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
Chirality Research Center, Hiroshima University, Higashihiroshima 739-8526, Japan, Graduate School of Arts and Sciences, The Open University of Japan, Chiba 261-8586, Japan
Department of Physics, Toho University, Chiba 274-8510, Japan
Chirality Research Center, Hiroshima University, Higashihiroshima 739-8526, Japan, Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
Chirality Research Center, Hiroshima University, Higashihiroshima 739-8526, Japan, Graduate School of Science, Hiroshima University, Higashihiroshima 739-8526, Japan, Institute for Advanced Materials Research, Hiroshima University, Higashihiroshima 739-8526, Japan
抄録
A chiral soliton lattice stabilized in a monoaxial chiral magnet CrNb3S6 is a magnetic superlattice consisting of magnetic kinks with a ferromagnetic background. The magnetic kinks are considered to be topological magnetic solitons (TMSs). Changes in the TMS number yield discretized responses in magnetization and electrical conductivity, and this effect is more prominent in smaller crystals. We demonstrate that, in microprocessed CrNb3S6 crystals, TMSs are geometrically protected through element-selected micromagnetometry using soft x-ray magnetic circular dichroism (MCD). A series of x-ray MCD data is supported by mean-field and micromagnetic analyses. By designing the microcrystal geometry, TMS numbers can be successfully changed and fixed over a wide range of magnetic fields.
Geometrical protection of topological magnetic solitons in microprocessed chiral magnets
scunit-2018_35.pdf
(4.77MB)
