

Frank Lechermann
I. Institut für Theoretische Physik
Universität Hamburg
Jungiusstrasse 9
20355 Hamburg
Tel. : +4940428387943
Fax.: +4940428386798
firstname.lastname @ physnet.unihamburg.de




CV 

Education
Dr. rer. nat., Physics, University of Stuttgart, 2003
Diploma degree, Physics, University of Stuttgart, 2000
Research Experience
 current
 Researcher, I. Institute for Theoretical Physics, University of
Hamburg
 2015  2017
 Deputy W2Professor at Hamburg University of Technology
 2007  2013
 Juniorprofessor, I. Institute for Theoretical Physics, University of
Hamburg
 2003  2006
 Postdoctoral position, Centre de Physique Théorique,
École Polytechnique, Palaiseau,
and Laboratoire de Physique Théorique de l'Ecole Normale Supérieure,
Paris,
in the group of Antoine Georges
 2001  2002
 Visiting scholar, Texas Materials Institute, The University of Texas at
Austin,
in the group of Juan M. Sanchez
 2000  2003
 Doctoral thesis, University of Stuttgart and
MaxPlanck Institute for Metals Research, Stuttgart
 1999  2000
 Diploma Thesis, University of Stuttgart



PUBLICATIONS 

Papers

Multiorbital nature of the spin fluctuations in Sr_{2}RuO_{4}
L. Boehnke, P. Werner and FL
arXiv:1806.01511 (2018)

Hidden Mott insulator in metallic PdCrO_{2}
FL
arXiv:1805.01738 (2018)

Uncovering the mechanism of the impurityselective Mott transition in
paramagnetic V_{2}O_{3}
FL, N. Bernstein, I. I. Mazin and R. Valenti
arXiv:1801.08906 (2018)

The role of nonspherical double counting in DFT+DMFT:
total energy and structural optimization of pnictide superconductors
O. Kristanovski, A. Shick, FL and A. I. Lichtenstein
Phys. Rev. B 97, 201116(R) (2018)

Thermopower enhancement from engineering the Na_{0.7}CoO_{2}
interacting fermiology
via Fe doping
R. Richter, D. Shopova, W. Xie, A. Weidenkaff and FL
Adv. Cond. Mat. Phys. 2018, 9725321 (2018)

Rigorous symmetry adaptation of multiorbital rotationally
invariant slaveboson theory
with application to Hund's rules physics
C. Piefke and FL
Phys. Rev. B 97, 125154 (2018)

Oxygenvacancy driven electron localization and itinerancy in rutilebased TiO_{2}
FL, W. Heckel, O. Kristanovski and S. Müller
Phys. Rev. B 95, 195159 (2017)

Unconventional electron states in δdoped SmTiO_{3}
FL
Sci. Rep. 7, 1565 (2017)

QuantumManyBody Intermetallics: Phase Stability of Fe_{3}Al and
SmallGap Formation in Fe_{2}VAl
O. Kristanovski, R. Richter, I. Krivenko, A. I. Lichtenstein and FL
Phys. Rev. B 95, 045114 (2017)

Hubbard band or oxygen vacancy states in the correlated electron metal SrVO_{3}?
S. Backes, T. C. Rödel, F. Fortuna, E. Frantzeskakis, P. Le Fevre, F. Bertran,
M. Kobayashi, R. Yukawa, T. Mitsuhashi, M. Kitamura, K. Horiba, H. Kumigashira,
R. SaintMartin, A. Fouchet, B. Berini, Y. Dumont, A. J. Kim, FL, H. O. Jeschke,
M. J. Rozenberg, R. Valenti and A. F. SantanderSyro
Phys. Rev. B 94, 241110(R) (2016)
(Editors' Suggestion)

Versatile approach to spin dynamics in correlated electron systems
M. Behrmann, A. I. Lichtenstein, M. I. Katsnelson and FL
Phys. Rev. B 94, 165120 (2016)

Magnetism, spin texture and ingap states:
Atomic specialization at the surface of oxygendeficient SrTiO_{3}
M. Altmeyer, H. O. Jeschke, O. HijanoCubelos, C. Martins, FL, K. Koepernik,
A. SantanderSyro, M. J. Rozenberg, R. Valenti and M. Gabay
Phys. Rev. Lett. 116, 157203 (2016)

Electron dichotomy on the SrTiO_{3} defect surface augmented
by manybody effects
FL, H. O. Jeschke, A. J. Kim, S. Backes and R. Valenti
Phys. Rev. B 93, 121103(R) (2016)

Interface exchange processes in LaAlO_{3}/SrTiO_{3}
induced by oxygen vacancies
M. Behrmann and FL
Phys. Rev. B 92, 125148 (2015)

LowEnergy Model and ElectronHole Doping Asymmetry of
SingleLayer RuddlesdenPopper Iridates
A. Hampel, C. Piefke and FL
Phys. Rev. B 92, 085141 (2015)

Towards Mott design by δdoping of strongly correlated titanates
FL and M. Obermeyer
New J. Phys. 17, 043026 (2015)

From Hubbard bands to spinpolaron excitations in the doped Mott
material Na_{x}CoO_{2 }
A. Wilhelm, FL, H. Hafermann, M. I. Katsnelson and A. I. Lichtenstein
Phys. Rev. B 91, 155114 (2015)

Largeamplitude spin oscillations triggered by nonequilibrium strongly correlated
t_{2g} electrons
M. Behrmann and FL
Phys. Rev. B 91, 075110 (2015)

Hidden spinorbital hexagonal ordering induced by strong correlations in LiVS_{2}
L. Boehnke, A. I. Lichtenstein, M. I. Katsnelson and FL
arXiv:1407.4795 (2014)

Effect of chromium doping on the correlated
electronic structure of V_{2}O_{3}
D. Grieger and FL
Phys. Rev. B 90, 115115 (2014)

Electron correlation and magnetism at the
LaAlO_{3}/SrTiO_{3} interface: A DFT+DMFT investigation
FL, L. Boehnke, D. Grieger and C. Piefke
Phys. Rev. B 90, 085125 (2014)

Theoretical prediction of a strongly correlated Dirac metal
I. I. Mazin, H. O. Jeschke, FL, H. Lee, M. Fink, R. Thomale and R. Valenti
Nat. Commun. 5, 4261 (2014)

Extended dynamic Motttransition in the twoband Hubbard
model out of equilibrium
M. Behrmann, M. Fabrizio and FL
Phys. Rev. B 88, 035116 (2013)

Formation of orbitalselective electron states in
LaTiO_{3}/SrTiO_{3} superlattices
FL, L. Boehnke and D. Grieger
Phys. Rev. B 87, 241101(R) (2013)

Approaching finitetemperature phase diagrams of strongly correlated materials:
A case study for V_{2}O_{3}
D. Grieger, C. Piefke, O. E. Peil and FL
Phys. Rev. B 86, 155121 (2012) (Editors' Suggestion)

Multiorbital physics in Fermi liquids prone to magnetic order
M. Behrmann, C. Piefke and FL
Phys. Rev. B 86, 045130 (2012)

Impact of the DzyaloshinskiiMoriya interaction in strongly
correlated itinerant systems
S. Schuwalow, C. Piefke and FL
Phys. Rev. B 85, 205132 (2012)

Competing orders in Na_{x}CoO_{2} from strong correlations
on a twoparticle level
L. Boehnke and FL
Phys. Rev. B 85, 115128 (2012)

Strong Correlations Enhanced by Charge Ordering in Highly Doped Cobaltates
O. E. Peil, A. Georges and FL
Phys. Rev. Lett. 107, 236404 (2011)

Orthogonal polynomial representation of imaginarytime
Green's functions
L. Boehnke, H. Hafermann, M. Ferrero, FL and O. Parcollet
Phys. Rev. B 84, 075145 (2011) (Editors' Suggestion)

LDA+slaveboson approach to the correlated electronic structure
of the metamagnetic bilayer ruthenate
Sr_{3}Ru_{2}O_{7}
C. Piefke and FL
phys. status solidi (b) 248, 2269 (2011)

General DFT++ method implemented with projector augmented waves:
electronic structure of SrVO_{3} and the Mott transition in
Ca_{2x}Sr_{x}RuO_{4}
M. Karolak, T. O. Wehling, FL and A. I. Lichtenstein
Journal of Physics: Condensed Matter 23, 085601 (2011)

Detecting excitation and magnetization of individual
dopants in a semiconductor
A. K. Khajetoorians, B. Chilian, J. Wiebe, S. Schuwalow, FL
and R. Wiesendanger
Nature 467, 1084 (2010)

Considerable nonlocal electronic correlations in strongly doped
Na_{x}CoO_{2}
C. Piefke, L. Boehnke, A. Georges and FL
Phys. Rev. B 82, 165118 (2010)

Realistic modeling of the electronic structure and the effect of
correlations
for Sn/Si(111) and Sn/Ge(111) surfaces
S. Schuwalow, D. Grieger and FL
Phys. Rev. B 82, 035116 (2010)

Electronic correlations in vanadium chalcogenides: BaVSe_{3}
versus BaVS_{3}
D. Grieger, L. Boehnke and FL
Journal of Physics: Condensed Matter 22, 275601 (2010)

Nature of the Mott Transition in Ca_{2}RuO_{4}
E. Gorelov, M. Karolak, T.O. Wehling, FL, A.I. Lichtenstein and E. Pavarini
Phys. Rev. Lett. 104, 226401 (2010)

Correlation Effects on the Doped Triangular
Lattice in View of the Physics of SodiumRich Na_{x}CoO_{2}
FL
Phys. Rev. Lett. 102, 046403 (2009)

Planewave based electronic structure calculations for correlated
materials
using dynamical meanfield theory and projected local orbitals
B. Amadon, FL, A. Georges, F. Jollet, T.O. Wehling and A.I. Lichtenstein
Phys. Rev. B 77, 205112 (2008) (Editors' Suggestion)

Rotationally invariant slaveboson formalism and
momentum dependence of the quasiparticle weight
FL, A. Georges, G. Kotliar and O. Parcollet
Phys. Rev. B 76, 155102 (2007)

Competing itinerant and localized states in strongly
correlated BaVS_{3}
FL, S. Biermann, and A. Georges
Phys. Rev. B 76, 085101 (2007)

Dynamical meanfield theory using Wannier functions:
a flexible route to electronic structure calculations of
strongly correlated materials
FL, A. Georges, A. Poteryaev, S. Biermann, M. Posternak, A. Yamasaki,
and O.K. Andersen
Phys. Rev. B 74, 125120 (2006)

Firstprinciples investigation of the NiFeAl system
FL, M. Fähnle, and J.M. Sanchez
Intermetallics 13 (10), 1096 (2005)

Importance of interorbital charge transfers for the metaltoinsulator
transition of BaVS_{3}
FL, S. Biermann, and A. Georges
Phys. Rev. Lett. 94, 166402 (2005)

Thermodynamic properties from abinitio calculations:
New theoretical developments, and applications to various materials
systems
M. Fähnle, R. Drautz, FL, R. Singer, A. DiazOrtiz, and H. Dosch
phys. stat. sol. (b) 242(6), 1159 (2005)

Electronic correlations, magnetism, and structure of FeAl subsystems:
An LDA+U study
FL, M. Fähnle, B. Meyer, and C. Elsässer
Phys. Rev. B 69, 165116 (2004)

Abinitio statistical mechanics for ordered compounds:
singledefect theory vs. clusterexpansion techniques
R. Drautz, I. Schultz, FL, and M. Fähnle
phys. stat. sol. (b) 240(1), 37 (2003)

Densityfunctional study of Fe_{3}Al: LSDA versus GGA
FL, F. Welsch, C. Elsässer, C. Ederer,
M. Fähnle, J.M. Sanchez, and B. Meyer
Phys. Rev. B 65, 132104 (2002)

Abinitio statistical mechanics for the phase diagram of NiAl
including the effect of vacancies
FL and M. Fähnle
phys. stat. sol. (b) 224(2), R4 (2001)

Abinitio statistical mechanics for alloy phase diagrams and ordering
phenomena
including the effect of vacancies
FL and M. Fähnle
Phys. Rev. B 63, 012104 (2000)
Book chapters, Conference Proceedings and other contributions

FirstPrinciples ManyBody Investigation of Correlated Oxide Heterostructures:
FewLayerDoped SmTiO_{3}
FL
in NIC Series 49, 273 (2018)
edited by Kurt Binder, Marcus Müller, Alexander Trautmann

Influence of oxygen vacancies on twodimensional electron systems
at SrTiO_{3}based interfaces and surfaces
M. Sing, H. O. Jeschke, FL, R. Valenti, R. Claessen
Eur. Phys. J. Spec. Top. 226, 2457 (2017)

Realistic manybody approaches to materials with strong nonlocal correlations
FL, A. I. Lichtenstein and M. Potthoff
Eur. Phys. J. Spec. Top. 226, 2591 (2017)

Getting back to Na_{x}CoO_{2}:
spectral and thermoelectric properties
L. Boehnke and FL
phys. stat. sol. (a) 211, 1267 (2014)

Strong Electronic Correlations: Dynamical MeanField Theory
and Beyond
H. Hafermann, FL, A. N. Rubtsov, M. I. Katsnelson, A. Georges and
A. I. Lichtenstein
in
Modern Theories of ManyParticle Systems in Condensed Matter Physics
D. C. Cabra, A. Honecker and P. Pujol (eds),
Lecture Notes in Physics 843, Springer (2012)

Model Hamiltonians and Basic Techniques
FL
in
The LDA+DMFT approach to strongly correlated materials
E. Pavarini, E. Koch, D. Vollhardt and A. I. Lichtenstein (eds),
Lecture Notes of the Autumn School 2011 Handson LDA+DMFT (2011)

Interorbital charge transfers and Fermisurface deformations in
strongly correlated metals:
models, BaVS_{3} and Na_{x}CoO_{2}
FL, S. Biermann, and A. Georges
Progress of Theoretical Physics Supplement 160, 233 (2005)

FirstPrinciples Atomistic Modeling of Ordering Phenomena
and Phase Diagrams
M. Fähnle, R. Drautz, FL, R. Singer, A. DiazOrtiz, and H. Dosch
TMS Letters 2, 7 (2005)

