Magnetic domain tuning and the emergence of bubble domains in the bilayer manganite La${}_{2-2x}$Sr${}_{1+2x}$Mn${}_2$O${}_7$ (x=0.32)

Abstract

We report a magnetic force microscopy study of the magnetic domain evolution in the layered manganite La${}_{2-2x}$Sr${}_{1+2x}$Mn${}_2$O${}_7$ (with $x=0.32$). This strongly correlated electron compound is known to exhibit a wide range of magnetic phases, including a recently uncovered biskyrmion phase. We observe a continuous transition from dendritic to stripe-like domains, followed by the formation of magnetic bubbles due to a field- and temperature dependent competition between in-plane and out-of-plane spin alignments. The magnetic bubble phase appears at comparable field- and temperature ranges as the biskyrmion phase, suggesting a close relation between both phases. Based on our real-space images we construct a temperature-field phase diagram for this composition.

References in corpus (2)

• Observation of electronic inhomogeneity and charge density wave in a bilayer La${}_{1.36}$Sr${}_{1.64}$Mn${}_2$O${}_7$ single crystal
• Temperature and Field Dependence of Magnetic Domains in La${}_{1.2}$Sr${}_{1.8}$Mn${}_2$O${}_7$

Cited by in corpus (5)

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• Microscopic magnetization distribution of Bloch lines in a uniaxial magnet
• Evolution of magnetic bubble domains in the uniaxial ferromagnet CeRu${}_2$Ga${}_2$B inferred from the Hall effect and ac magnetic susceptibility