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cond-mat.str-el2026
Pressure-Driven Structural Transitions without a Displacive Charge-Density Wave in LaSmNiO
J. Huang, Sitaram Ramakrishnan, P. Rodière +7
We investigated the structural properties of bilayer nickelate LaSmNiO as a function of pressure and temperature. At ambient conditions, we show that the material cryst…
cond-mat.str-el2025
Tracing the horizon of tetragonal-to-monoclinic distortion in pressurized trilayer nickelate La4Ni3O10
Sitaram Ramakrishnan, Yingzheng Gao, Valerio Olevano +18
The crux of understanding the superconducting mechanism in pressurized Ruddlesden-Popper nickelates hinges on elucidating their structural phases. Under ambient conditions, the tri…
cond-mat.str-el2025
Multilayer Crystal Field states from locally broken centrosymmetry
Owen Moulding, Makoto Shimizu, Amit Pawbake +9
Local charge, spin, or orbital degrees of freedom with intersite interactions are oftentimes sufficient to construct most quantum orders. This is conventionally true for f-electron…