Orbital Domain Dynamics in a Doped Manganite

Abstract

The coupling of multiple degrees of freedom - charge, spin, and lattice - in manganites has mostly been considered at the microscopic level. However, on larger length scales, these correlations may be affected by strain and disorder, which can lead to short range order in these phases and affect the coupling between them. To better understand these effects, we explore the dynamics of orbitally ordered domains in a half-doped manganite near the orbital ordering phase transition. Our results suggest that the domains are largely static, and exhibit only slow fluctuations near domain boundaries.

10 pages, 4 figures

References in corpus (7)

• Direct measurement of antiferromagnetic domain fluctuations
• Direct observation of orbital ordering in La${}_{0.5}$Sr${}_{1.5}$MnO${}_4$ using soft x-ray diffraction
• Disorder-induced microscopic magnetic memory
• Soft x-ray resonant diffraction study of magnetic and orbital correlations in a manganite near half-doping
• Independent freezing of charge and spin dynamics in La1.5Sr0.5CoO4
• Correlated Polarons in Dissimilar Perovskite Manganites
• Coherent X-ray Scattering from Manganite Charge and Orbital Domains