10. Selected publications

C. Friedrich, S. Blügel, and A. Schindlmayr, “Efficient implementation of the GW approximation within the all-electron FLAPW method”, Phys. Rev. B 81, 125102 (2010).

C. Friedrich, A. Schindlmayr, and S. Blügel, “Efficient calculation of the Coulomb matrix and its expansion around k=0 within the FLAPW method”, Comput. Phys. Commun. 180, 347 (2009).

C. Friedrich, M. C. Müller, and S. Blügel, “Band convergence and linearization error correction of all-electron GW calculations: The extreme case of zinc oxide”, Phys. Rev. B 83, 081101 (2011); 84, 039906(E) (2011).

C. Friedrich, M. Betzinger, M. Schlipf, S. Blügel, and A. Schindlmayr, “Hybrid functionals and GW approximation in the FLAPW method”, J. Phys.: Condens. Matter 24, 293201 (2012).

E. Sasioglu, C. Friedrich, and S. Blügel, “Effective Coulomb interaction in transition metals from constrained random-phase approximation”, Phys. Rev. B 83, 121101(R) (2011).

T. O. Wehling, E. Sasioglu, C. Friedrich, A. I. Lichtenstein, M. I. Katsnelson, and S. Blügel, “Strength of effective Coulomb interactions in graphene and graphite”, Phys. Rev. Lett. 106, 236805 (2011).

E. Sasioglu, C. Friedrich, and S. Blügel, “Strength of the effective Coulomb interaction at metal and insulator surface”, Phys. Rev. Lett. 109, 146401 (2012).

M. Betzinger, C. Friedrich, and S. Blügel, “Hybrid functionals within the all-electron FLAPW method: Implementation and applications of PBE0”, Phys. Rev. B 81, 195117 (2010).

M. Betzinger, C. Friedrich, S. Blügel, and A. Görling, “Local exact exchange potentials within the all-electron FLAPW method and a comparison with pseudopotential results”, Phys. Rev. B 83, 045105 (2011).

M. Schlipf, M. Betzinger, C. Friedrich, M. Lezaic, and S. Blügel, “Implementation of a screened hybrid functional within the FLAPW method and its application to GdN”, Phys. Rev. B 84, 125142 (2011).

I. Aguilera, C. Friedrich, and S. Blügel, “Electronic phase transitions of bismuth under strain from relativistic self-consistent GW calculations”, Phys. Rev. B 91, 125129 (2015).

E. Sasioglu, A. Schindlmayr, C. Friedrich, F. Freimuth, and S. Blügel, “Wannier-function approach to spin excitations in solids”, Phys. Rev. B 81, 054434 (2010).

C. Friedrich, E. Sasioglu, M. Müller, A. Schindlmayr, and S. Blügel, “Spin excitations in solids from many-body perturbation theory”, Top. Curr. Chem. 347, 259-301 (2014).

C. Friedrich, M. C. T. D. Müller, and S. Blügel, “Many-body spin excitations in ferromagnets from first principles” in Handbook of Materials Modeling. Volume 1 Methods: Theory and Modeling, edited by S. Yip and W. Andreoni (Springer Berlin Heidelberg, 2018).

M. C. T. D. Müller, C. Friedrich, and S. Blügel, “Acoustic magnons in the long-wavelength limit: Investigating the Goldstone violation in many-body perturbation theory”, Phys. Rev. B 94, 064433 (2016).

M. C. T. D. Müller, C. Friedrich, and S. Blügel, “Electron-magnon scattering in elementary ferromagnets from first principles: lifetime broadening and band anomalies”, Physical Review B 100, 045130 (2019)

C. Friedrich,”Tetrahedron integration method for strongly varying functions: Application to the GT self-energy”, Phys. Rev. B 100, 075142 (2019)

R. Sakuma, C. Friedrich, T. Miyake, S. Blügel, and F. Aryasetiawan, “GW calculations with spin-orbit coupling: application to Hg chalcogenides”, Phys. Rev. B 84, 085144 (2011).

I. Aguilera, C. Friedrich, G. Bihlmayer, and S. Blügel, “GW study of topological insulators Bi2Se3, Bi2Te3, and Sb2Te3: beyond the perturbative one-shot approach”, Phys. Rev. B 88, 045206 (2013).

I. Aguilera, C. Friedrich, and S. Blügel, “Spin-orbit coupling in quasiparticle studies of topological insulators”, Phys. Rev. B 88, 165136 (2013).

I. Nechaev, I. Aguilera, C. Friedrich, E. V. Chulkov, and S. Blügel, “Many-Body Effects in the Electronic Structure of Topological Insulators” in Topological Insulators: Fundamentals and Perspectives, ed. Frank Ortmann, Stephan Roche, Sergio O. Valenzuela ISBN: 978-3-527-33702-6 (Wiley 2015).

M. Betzinger, C. Friedrich, S. Blügel, and A. Görling, “Precise response functions in all-electron methods: Application to the optimized-effective-potential approach”, Phys. Rev. B 85, 245124 (2012).

M. Betzinger, C. Friedrich, and S. Blügel, “Precise response functions in all-electron methods: Generalization to nonspherical perturbations and application to NiO”, Phys. Rev. B 88, 075130 (2013).

M. Betzinger, C. Friedrich, A. Görling, and Stefan Blügel, “Precise all-electron dynamical response functions: Application to COHSEX and the RPA correlation energy”, Phys. Rev. B 92, 245101 (2015).