Formation of nanoscale magnetic bubbles in ferromagnetic insulating manganite La 7/8Sr 1/8MnO 3

T. Nagai, M. Nagao, K. Kurashima, T. Asaka, W. Zhang, K. Kimoto

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We have observed the response of spin arrangements to external magnetic fields in a multiorbital Mott insulator, ferromagnetic insulating manganite La 7/8Sr 1/8MnO 3, by low-temperature in situ Lorentz microscopy. Magnetic fields normal to the plane of the thin-plate sample continuously change the width of domains in the serpentine-like domain structure, eventually giving rise to nanoscale elliptical magnetic bubbles of ∼200 nm major diameter at 3.6 kOe. The formation of these bubbles implies large magnetic anisotropy related to the orbital ordering and suggests the possibility of manipulating the bubbles using an electric field.

Original languageEnglish
Article number162401
JournalApplied Physics Letters
Volume101
Issue number16
DOIs
Publication statusPublished - 2012 Oct 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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