F. Martinelli

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20242026

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cond-mat.mtrl-sci2026

Quadrupole formation and coupling to magnetic and structural degrees of freedom in the $5 d^{1}$ double perovskites Ba $_{2}$ MgReO $_{6}$ and Ba $_{2}$ NaOsO $_{6}$

Francesco Martinelli, Claude Ederer

We investigate the interplay between charge, magnetic, and structural degrees of freedom in the isostructural and isoelectronic $5 d^{1}$ double-perovskites Ba $_{2}$ MgReO $_{6}$ and Ba $_{2}$ …

cond-mat.mtrl-sci2025

Multipoles as quantitative order parameters for altermagnetic spin splitting

Francesco Martinelli, Anouk Droux, Claude Ederer

We establish a quantitative relation between the altermagnetic spin-splitting and different higher order multipoles of the charge and magnetization density around the magnetic atom…

Quadrupole formation and coupling to magnetic and structural degrees of freedom in the 5d1 double perovskites Ba2​MgReO6​ and Ba2​NaOsO6​

Multipoles as quantitative order parameters for altermagnetic spin splitting

Quadrupole formation and coupling to magnetic and structural degrees of freedom in the $5 d^{1}$ double perovskites Ba $_{2}$ MgReO $_{6}$ and Ba $_{2}$ NaOsO $_{6}$