Antiferromagnetic domain wall dynamics in magnetoelectric <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi>MnTiO</mml:mi></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:math> studied by optical imaging
Tatsuki Sato, Nobuyuki Abe, Y. Tokunaga, T. Arima
Abstract
Domain-wall velocity is one of the key parameters which governs the switching dynamics in antiferromagnets. Antiferromagnetic domain walls in magnetoelectric materials are driven by the joint action of electric and magnetic fields. Here, the authors capture by optical magnetochiral imaging the millisecond dynamics in domain switching in the collinear antiferromagnet MnTiO${}_{3}$. Detailed investigation of the domain-wall motion with varying temperature and external-field strength reveals the thermal effects on the domain-wall mobility.
Topics & Concepts
AntiferromagnetismDomain wall (magnetism)Domain (mathematical analysis)PhysicsCondensed matter physicsField (mathematics)AlgorithmMagnetic fieldMaterials scienceComputer scienceMagnetizationQuantum mechanicsMathematicsMathematical analysisPure mathematicsMultiferroics and related materialsMagneto-Optical Properties and ApplicationsFerroelectric and Piezoelectric Materials