title: Variation of Topology in Magnetic Bubbles in a Colossal Magnetoresistive Manganite.
abstract: 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, La1-xSrxMnO3, 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.
authors.affiliation: RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan.
authors.forename: Xiuzhen
authors.initials: X
authors.lastname: Yu
authors.affiliation: Department of Advanced Materials Science, University of Tokyo, Kashiwa, 277-8561, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Tokunaga
authors.affiliation: RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan.
authors.forename: Yasujiro
authors.initials: Y
authors.lastname: Taguchi
authors.affiliation: RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan.|Department of Applied Physics and Quantum Phase Electronics Center (QPEC), University of Tokyo, Tokyo, 113-8656, Japan.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Tokura
keywords: Lorentz TEM; colossal magnetoresistive manganite; skyrmionic bubbles; topology