Novel Orbital Ordering induced by Anisotropic Stress in a Manganite Thin Film

Abstract

We performed resonant and nonresonant x-ray diffraction studies of a Nd0.5Sr0.5MnO3 thin film that exhibits a clear first-order transition. Lattice parameters vary drastically at the metal-insulator transition at 170K (=T_MI), and superlattice reflections appear below 140K (=T_CO). The electronic structure between T_MI and T_CO is identified as A-type antiferromagnetic with the d_{x2-y2} ferroorbital ordering. Below T_CO, a new type of antiferroorbital ordering emerges. The accommodation of the large lattice distortion at the first-order phase transition and the appearance of the novel orbital ordering are brought about by the anisotropy in the substrate, a new parameter for the phase control.

4pages, 4figures

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Cited by in corpus (14)

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• The interparticle interaction and crossover in critical lines on field-temperature plane in Pr${}_{0.5}$Sr${}_{0.5}$MnO${}_3$ nanoparticles
• Matrix Product State and Quantum Phase Transitions in the One-Dimensional Extended Quantum Compass Model
• Orbital Ordering Structures in (Nd,Pr)0.5Sr0.5MnO3 Manganite Thin Films on Perovskite (011) Substrates
• Quantum Phase Transition in the One-Dimensional Extended Quantum Compass Model in a Transverse Field
• Magnetic properties of pseudomorphic epitaxial films of Pr_{0.7}Ca_{0.3}MnO_3 under different biaxial tensile stresses
• Size of Orbital Ordering Domain Controlled by the Itinerancy of the 3d Electrons in a Manganite Thin Film
• From fidelity to entanglement of entropy of the one-dimensional transverse-field quantum compass model
• Absence of charge-density-wave sliding in epitaxial charge-ordered Pr0.48Ca0.52MnO3 films
• Structural study on Pr0.55(Ca[1-y]Sr[y])0.45MnO3 thin films on perovskite (011) substrate
• Phase competitions in epitaxial Pr${}_{0.5}$Ca${}_{0.5}$MnO${}_3$/La${}_{0.5}$Sr${}_{0.5}$MnO${}_3$ superlattices