Magnetic domain formation in itinerant metamagnets
B. Binz, H.B. Braun, T.M. Rice, M. Sigrist
TL;DR
This paper investigates how long-range dipolar forces influence magnetic domain patterns in itinerant metamagnets, extending Condon domain theory and explaining observed phenomena in Sr$_3$Ru$_2$O$_7$.
Contribution
It generalizes the theory of Condon domains to itinerant electron systems with dipolar interactions, revealing how these forces induce spatial magnetization modulations.
Findings
Dipolar interactions cause stripe or bubble magnetization patterns.
Theoretical results align with experimental observations in Sr$_3$Ru$_2$O$_7$.
Finite field range for domain formation identified.
Abstract
We examine the effects of long-range dipolar forces on metamagnetic transitions and generalize the theory of Condon domains to the case of an itinerant electron system undergoing a first-order metamagnetic transition. We demonstrate that within a finite range of the applied field, dipolar interactions induce a spatial modulation of the magnetization in the form of stripes or bubbles. Our findings are consistent with recent observations in the bilayer ruthenate SrRuO.
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