P. Toulemonde

collaborators

4 papers

cond-mat.str-el2026

Pressure-Driven Structural Transitions without a Displacive Charge-Density Wave in La $_{2}$ SmNi $_{2}$ O $_{7}$

J. Huang, Sitaram Ramakrishnan, P. Rodière +7

We investigated the structural properties of bilayer nickelate La $_{2}$ SmNi $_{2}$ O $_{7}$ as a function of pressure and temperature. At ambient conditions, we show that the material cryst…

cond-mat.supr-con2026

Stabilization of a non-superconducting, orthorhombic phase by over-hydrogenating LaFeSiH

M. F. Hansen, C. Lepoittevin, J. -B. Vaney +7

Chemical composition provides a powerful route to tune the electronic ground state of iron-based superconductors and other quantum materials, yet access to highly doped phases rema…

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.supr-con2025

Pressure and strain effects on the $ab initio$ $G W$ electronic structure of La $_{3}$ Ni $_{2}$ O $_{7}$

Jean-Baptiste de Vaulx, Quintin N. Meier, Pierre Toulemonde +2

The recent discovery of superconductivity in La $_{3}$ Ni $_{2}$ O $_{7}$ at a critical temperature above 80~K points to a non-conventional pairing mechanism in nickelates as in cuprates, pos…

Pressure-Driven Structural Transitions without a Displacive Charge-Density Wave in La2​SmNi2​O7​

Stabilization of a non-superconducting, orthorhombic phase by over-hydrogenating LaFeSiH

Tracing the horizon of tetragonal-to-monoclinic distortion in pressurized trilayer nickelate La4Ni3O10

Pressure and strain effects on the ab initio GW electronic structure of La3​Ni2​O7​

Pressure-Driven Structural Transitions without a Displacive Charge-Density Wave in La $_{2}$ SmNi $_{2}$ O $_{7}$

Pressure and strain effects on the $ab initio$ $G W$ electronic structure of La $_{3}$ Ni $_{2}$ O $_{7}$