Self-Consistent Perturbation Theory for Thermodynamics of Magnetic Impurity Systems
J. Otsuki, H. Kusunose, Y. Kuramoto
TL;DR
This paper develops integral equations within the non-crossing approximation to accurately compute thermodynamic properties like entropy and specific heat for magnetic impurity systems, exemplified by PrFe4P12.
Contribution
It introduces a self-consistent perturbation framework that calculates thermodynamic quantities without numerical differentiation, applicable to complex impurity systems.
Findings
Accurate entropy and specific heat calculations for 4f systems.
Application to PrFe4P12 with singlet-triplet CEF levels.
Elimination of numerical differentiation in thermodynamic calculations.
Abstract
Integral equations for thermodynamic quantities are derived in the framework of the non-crossing approximation (NCA). Entropy and specific heat of 4f contribution are calculated without numerical differentiations of thermodynamic potential. The formulation is applied to systems such as PrFe4P12 with singlet-triplet crystalline electric field (CEF) levels.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.