Orbital-dependent electronic masses in Ce heavy-fermion materials studied via Gutzwiller density-functional theory

Ruanchen Dong, Xiangang Wan, Xi Dai, and Sergey Y. Savrasov
Phys. Rev. B 89, 165122 – Published 21 April 2014

Abstract

A series of cerium-based heavy fermion materials is studied using a combination of local density functional theory and the many-body Gutzwiller approximation. Computed orbital-dependent electronic mass enhancement parameters are compared with available experimental data extracted from measured values of the Sommerfeld coefficient. Gutzwiller density functional theory is shown to remarkably follow the trends across a variety of Ce compounds and to give important insights into the phenomenon of orbital-selective mass renormalization which in turn allows for a better understanding of a wide spread of data.

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  • Received 23 January 2014
  • Revised 8 April 2014

DOI:https://doi.org/10.1103/PhysRevB.89.165122

©2014 American Physical Society

Authors & Affiliations

Ruanchen Dong1, Xiangang Wan2, Xi Dai3, and Sergey Y. Savrasov1

  • 1Department of Physics, University of California Davis, Davis, California 95616, USA
  • 2National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
  • 3Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

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Issue

Vol. 89, Iss. 16 — 15 April 2014

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