Uniaxial strain below 0.5% enables continuous reversible control of ferroelastic domains in LaAlO3, mapping the evolution from rhombohedral R-3c to orthorhombic Fmmm phase via AFM, XRD, Raman spectroscopy, and first-principles calculations.
Typical scanning parameters are (256×256) Pixels with a 1.5 Hz scanning rate along the fast-scanning axis
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Uniaxial strain-driven ferroelastic domain control in LaAlO3
Uniaxial strain below 0.5% enables continuous reversible control of ferroelastic domains in LaAlO3, mapping the evolution from rhombohedral R-3c to orthorhombic Fmmm phase via AFM, XRD, Raman spectroscopy, and first-principles calculations.