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Showing 2025 · cond-mat.str-elShow all
3 papers · 2 filters
cond-mat.str-el2025★ 2 cited
Constrained Random Phase Approximation: the spectral method
Merzuk Kaltak, Alexander Hampel, Martin Schlipf +3
We present a constrained Random Phase Approximation (cRPA) method, termed spectral cRPA (s-cRPA), and compare it to established cRPA approaches for Scandium and Copper by varying t…
cond-mat.str-el2025★ 6 cited
Magnetism-Enhanced Strong Electron-Phonon Coupling in Infinite-Layer Nickelate
Ruiqi Zhang, Yanyong Wang, Manuel Engel +12
Intriguing analogies between the nickelates and the cuprates provide a promising avenue for unraveling the microscopic mechanisms underlying high- superconductivity. While ele…
cond-mat.str-el2025★ 5 cited
Comparative analysis of methods for calculating Hubbard parameters using cRPA
Indukuru Ramesh Reddy, M. Kaltak, Bongjae Kim
In this study, we present a systematic comparison of various approaches within the constrained random-phase approximation (cRPA) for calculating the Coulomb interaction parameter $…