Biaxial tensile strain reproduces the pressure-like flat d_z2 band at the Fermi level in Ruddlesden-Popper nickelates (n=2-5), while compressive strain produces a cuprate-like electronic structure.
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Electronic structure of Ruddlesden-Popper nickelates: strain to mimic the effects pressure
Biaxial tensile strain reproduces the pressure-like flat d_z2 band at the Fermi level in Ruddlesden-Popper nickelates (n=2-5), while compressive strain produces a cuprate-like electronic structure.