Bulk-sensitive Imaging of Twin Domains in La${}_{2-x}$Sr${}_x$CuO${}_4$ under Uniaxial Pressure

Abstract

We report our study of twin domains in $L{a}_{2-x}S{r}_{x}Cu{O}_4$ under uniaxial pressure. Using bulk-sensitive x-ray microdiffraction in Laue geometry, we image the distribution of twin domains at room temperature. When compressive uniaxial pressure is applied along one of the in-plane crystallographic axes, the domain population changes dramatically. We observe that the twin domain with shorter lattice parameter along the direction of pressure is unstable under compression, and disappears completely with only moderate pressure. On the other hand, application of tensile pressure changes the domain structure only slightly, demonstrating the asymmetric response of the sample to uniaxial pressure. Our observations suggest that a crystal's response to uniaxial pressure is complex and could deviate easily from the linear-response regime.

arXiv comment5 pages, 4 figures, to appear in App. Phys. Lett

References in corpus (11)

• Energy gaps, topological insulator state and zero-field quantum Hall effect in graphene by strain engineering
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Electrical Resistivity Anisotropy from Self-Organized One-Dimensionality in High-Temperature Superconductors
• Uniaxial strain detwinning of CaFe2As2 and BaFe2As2: optical and transport study
• In-plane electronic anisotropy of underdoped "122" Fe-arsenide superconductors revealed by measurements of detwinned single crystals
• Piezoelectric-based apparatus for strain tuning
• Magnetic shape-memory effects in La2-xSrxCuO4 crystals
• Effect of uniaxial strain on the structural and magnetic phase transitions in BaFe${}_2$As${}_2$
• Unusual magnetic susceptibility anisotropy in untwinned La_{2-x}Sr_xCuO_4 single crystals in the lightly-doped region
• Gigantic anisotropic uniaxial pressure effect on superconductivity within the CuO2 plane of La1.64Eu0.2Sr0.16CuO4 - strain control of stripe criticality
• Effect of tensile stress on the in-plane resistivity anisotropy in BaFe2As2

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• Interplay between atomic fluctuations and charge density waves in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Structural Phase Separation and Enhanced Superconductivity in La1.875Ba0.125CuO4 under Uniaxial Strain