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Variation of Topology in Magnetic Bubbles in a Colossal Magnetoresistive Manganite
Author(s) -
Yu Xiuzhen,
Tokunaga Yusuke,
Taguchi Yasujiro,
Tokura Yoshinori
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201603958
Subject(s) - manganite , colossal magnetoresistance , magnetoresistance , materials science , condensed matter physics , magnetization , nanotechnology , magnetic field , physics , quantum mechanics , ferromagnetism
The emergence of zero‐bias bubbles (≈100 nm in diameter) with various Bloch lines and their triangular lattice is revealed in a colossal magnetoresistive material, La 1− x Sr x MnO 3 , by means of Lorentz transmission electron microscopy (LTEM). The magnetization dynamics, and accompanying changes of the topological number of bubbles via the field‐driven motion of the Bloch lines, are demonstrated by in situ LTEM observations.