Annual Report 2014
Electronic correlations
Semi-metallic ground state of hyper-kagome iridate Na3Ir3O8 produced by a competion of molecular orbital split and spin-orbit coupling
T. Takayama, A. Yaresko, A. Matsumoto, J. Nuss, and H. Takagi
Tilted inverse-perovskites, new class of three-dimensional Dirac electron systems
J. Nuss, A. W. Rost, C. Mühle, K. Hayama, V. Abdolazimi, and H. Takagi
Effect of Te doping on the structure and superconductivity of K0.8Fe2Se2-zTez single crystals
M. T. Li, W.P. Liu, and C. T. Lin
Electronic ordering in perovskites and the effects on the symmetry of crystal structures
M. Etter, M. Isobe, H. Sakurai, R. E. Dinnebier, and H. Takagi
Competing exchange interactions on the verge of a metal-insulator transition in the two-dimensional spiral magnet Sr3Fe2O7
J.-H. Kim, A. Jain, G. Khaliullin, D. C. Peets, C. Ulrich, A. C. Walters, D. S. Inosov, A. Maljuk, and B. Keimer
Atomic-scale imaging of magnetic order in strongly correlated electron systems
R. Aluru, M. Enayat, Z. Sun, U. R. Singh, S. Schmaus, A. Yaresko, Y. Liu, C. T. Lin, and P. Wahl
Polar instability through strong magneto-elastic coupling in bulk EuTiO3: Small cause, large impact
P. G. Reuvekamp, K. Caslin, R. K. Kremer, J. Köhler, and A. Bussmann-Holder
Non-Fermi liquid behavior in two-dimensional metals at the onset of incommensurate density wave order
T. Holder and W. Metzner
Interference effects in two-dimensional chiral metal with vacancies
P. M. Ostrovsky
Insight into the many-electron wavefunction of Mott-insulating antiferromagnets
L. R. Schwarz and A. Alavi
Heterostructures
Evidence for superconducting vortices in the insulating regime of the LaAlO3–SrTiO3 interface electron system
E. Fillis-Tsirakis, C. Richter, J. Mannhart, and H. Boschker
Ferromagnetism and conductivity in atomically thin SrRuO3
H. Boschker, T. Harada, C. R. Hughes, A. V. Boris, and J. Mannhart
Effects of SrRuO3 on properties of functional oxide heterostructures
I. Vrejoiu
Tunable charge and spin order in PrNiO3 thin films and superlattices
M. Hepting, M. Minola, A. Frano, G. Cristiani, G. Logvenov, M. Wu, M. Bluschke, H.-U. Habermeier, E. Benckiser, M. Le Tacon, and B. Keimer
Precise defect control in complex oxides thin epitaxial films
K. Kawashima, F. Baiutti, G. Christiani, H.-U. Habermeier, and G. Logvenov
Fast organic complementary circuits on flexible plastic substrates
U. Kraft, M. Sejfić, R. Rödel, M. Aghamohammadi, U. Zschieschang, and H. Klauk
Low dimensional quantum systems
Atomic exchange bias control of individual quantum magnets
S. Yan, D.-J. Choi, J. A. J. Burgess, S. Rolf-Pissarczyk, and S. Loth
Tracking temperature dependent relaxation times with a wide-band quantum spectrometer
M. Ternes , E. Schäfer-Nolte, L. Schlipf, F. Reinhard, J. Wrachtrup, and K. Kern
A plasmon emitting transistor based on a single molecule
Ch. Große, A. Kabakchiev, Th. Lutz, R. Froidevaux, M. Etzkorn, U. Schlickum, K. Kuhnke, and K. Kern
Magnetic flux periodic conductance modulations in mesoscopic two-paths quantum Hall devices
L. Schulz, J. Weis, and K. v. Klitzing
Negative compressibility of the bubble and stripe phases in the quantum Hall regime
B. Frieß, K. v. Klitzing, and J. Smet (currently not available!)
Covalent modification of graphene by hyperthermal collisions
G. Dubey, R. Urcuyo, S. Abb, G. Rinke, M. Burghard, S. Rauschenbach, and K. Kern
Materials for energy conversion
Crystalline carbon nitride nanosheets for improved visible-light hydrogen evolution
K. Schwinghammer, M. B. Mesch, V. Duppel, Ch. Ziegler, J. Senker, B. V. Lotsch
A hydrazone-based covalent organic framework for photocatalytic hydrogen production
L. Stegbauer, K. Schwinghammer, and B. V. Lotsch
Engineering the surface properties of titanium dioxide for photocatalysis
C. Dette, C. S. Kley, P. Punke, G. Rinke, J. Čechal, P. Jacobson, S. Rauschenbach, S. Stepanow, S. J. Jung, and K. Kern
Phase evolution in single-crystalline LiFePO4 followed by in-situ scanning X-ray microscopy of a micrometer-sized battery
N. Ohmer, B. Fenk, D. Samuelis, C.-C. Chen, M. Weigand, E. Goering, G. Schütz, and J. Maier
Thermodynamics of lithium storage at abrupt junctions: Modeling and experimental evidence
L. J. Fu, C.-C. Chen, D. Samuelis, and J. Maier
Solution of the three-carrier problem: A natural explanation for surprising observations
D. Poetzsch, R. Merkle, and J. Maier
Annual Report 2013
Low-dimensional quantum systems
Signatures of a Wigner crystal in the chemical-potential evolution of a two dimensional electron system
D. Zhang, X. Huang, W. Dietsche, K. v. Klitzing, and J.H. Smet
Probing the microscopic structure of the stripe phase at filling factor 5/2
B. Friess, K. von Klitzing, and J.H. Smet
Current distribution and Hall potential landscape at the breakdown of the Quantum Hall Effect in small samples
K. Panos, J. Weis, R.R. Gerhardts, and K. v. Klitzing
Individual molecules as gates for plasmonic light emission
T. Lutz, Ch. Große, Ch. Dette, A. Kabakchiev, R. Gutzler, K. Kuhnke, U. Schlickum, and K. Kern
Ultrafast dynamics of quantum confined carriers in a single CdSe nanowire
T. Schumacher and M. Lippitz
Vector magnetic field characterization of individual atoms
S. Yan, J. Burgess, D.-J. Choi, S. Rolf-Pissarczyk, and S. Loth
Functional interfaces and heterostructures
Monolithically integrated circuits from functional oxides
C. Richter, C. Woltmann, G. Pfanzelt, B. Foerg, M. Rommel, T. Reindl, U. Waizmann, J. Weis, H. Boschker, and J. Mannhart
Two-dimensional electron gas in SrTiO3 probed by quantum oscillations
H. Nakamura
Digital synthesis of multicomponent oxides – We can design novel materials
F. Baiutti, F. Wrobel, Ch. Dietl, G. Christiani, and G. Logvenov
Stabilization of high Curie temperature in manganite/ruthenate superlattices with ultrathin layers
I. Vrejoiu
Megahertz operation of flexible organic transistors
U. Zschieschang, U. Kraft, R. Rödel, M. Sejfić, R. Hofmockel, M. Aghamohammadi, S. Bisoyi, and H. Klauk
Unconventional superconductivity and electronic correlations
Giant phonon anomalies and central peak due to charge density wave formation in YBa2Cu3O6.6
M. Le Tacon, S.M. Souliou, T. Loew, and B. Keimer
Cu-intercalated superconductor of PdTe2 with CdI2-type structure
G.H. Ryu, M.T. Li, D.P. Chen, and C.T. Lin
Role of orbital states at the Interface of a triplet superconductor and a ferromagnet
D. Manske
Competing order in interacting electron systems made simple
J. Wang, A. Eberlein, and W. Metzner
Lifetimes of antiferromagnetic magnons in two and three dimensions
Ph. Leininger, T. Keller, and B. Keimer
Characterization of the spin-1/2 linear-chain ferromagnet Trippkeite (CuAs2O4)
K. Caslin, R.K. Kremer, and A. Schulz
Temperature and magnetic field dependence of a Kondo system in the weak coupling regime
Y. Zhang, S. Kahle, T. Herden, U. Schlickum, M. Ternes, P. Wahl, and K. Kern
Defect states in semiconductors: Mn acceptor in GaAs
J. Jackson and G. Bester
Materials for energy conversion and storage
Bio-inspired nanocatalysts for the oxygen reduction reaction
D. Grumelli, B. Wurster, S. Stepanow, and K. Kern
Tetragonal Li10GeP2S12 and Li7GePS8 – structure and Li ion dynamics of LGPS Li electrolytes
A. Kuhn, V. Duppel, J. Köhler, and B.V. Lotsch
Concentration polarization in salt containing liquid and liquid-solid composite electrolytes
C. Pfaffenhuber, J. Popovic, and J. Maier
How to get a conversion reaction reversible? Lithium and sodium storage in MoS2 nanodots
C. Zhu, X. Mu, P.A. van Aken, Y. Yu, and J. Maier
Mobility of oxygen vacancies in perovskites: Insights from experiments and ab-initio calculations
R. Merkle, E.A. Kotomin, and J. Maier
Thermoelectronic conversion of solar energy and heat into electric power
C. Stephanos, G. Hassink, I. Rastegar, and J. Mannhart
Unusual solids
Kawazulite – A natural topological insulator
P. Gehring, H.M. Benia, R. Dinnebier, Y. Weng, C.R. Ast, M. Burghard, and K. Kern
Artificial solids by design: Assembly and electron microscopy study of nanosheet-derived heterostructures
C. Ziegler, S. Werner, M. Wörsching, V. Duppel, and B.V. Lotsch
X-ray powder diffraction meets the thermosalient effect – The jumping crystals
T. Runčevski and R.E. Dinnebier
Annual Report 2012
Structure and properties of crystalline compounds
Temperature dependence of band gaps in semiconductors: electron-phonon interaction
M. Cardona, R. Lauck, and R.K. Kremer
Crystal growth and anomalous transport properties of CuxBi2Se3
M.T. Li and C.T. Lin
Reconstruction of electron density by the Maximum Entropy Method from X-ray powder diffraction data based on incomplete crystal structure models: a case study of apatites with different intercalated metal atoms
O.V. Magdysyuk, R.E. Dinnebier, and M. Jansen
Altering electrical properties by "one-dimensional doping": Case study of TiO2
K.K. Adepalli, M. Kelsch, R. Merkle, and J. Maier
Magnetic field enhanced structural instability in EuTiO3
J. Köhler, R. Dinnebier, and A. Bussmann-Holder
Electronic correlations and superconductivity
Gutzwiller Theory of Band Magnetism in LaOFeAs
L. Boeri and O.K. Andersen
Dimerization and Entanglement in Spin-Orbital Chains
W.-L. You, A. Herzog, J. Sirker, A.M. Oleś, and P. Horsch
Functional renormalization group study of superconductivity in the two-dimensional Hubbard model
A. Eberlein and W. Metzner
CuBr2 - A New Multiferroic Material with High Critical Temperature
R.K. Kremer, M.G. Banks, and A. Simon
Nanoscale layering of antiferromagnetic and superconducting phases in Rb2Fe4Se5
A. Charnukha, D. Pröpper, A.N. Yaresko, B. Keimer, and A.V. Boris
Quantum Hall effect
Current-induced asymmetries in narrow quantum Hall systems
R.R. Gerhardts, K. Panos, J. Weis, and K. v. Klitzing
Quantized ν=5/2 state in a Two-Subband Quantum Hall System
J. Nuebler, B. Friess, K. v. Klitzing, and J.H. Smet
Edge Contribution to the Hall Potential Profiles in Graphene under Quantum Hall Conditions
K. Panos, J. Weis, B. Krauss, and K. v. Klitzing
Transconductance fluctuations probe interaction physics in graphene
D.-S. Lee, V. Skakalova, R.T. Weitz, K. v. Klitzing, and J.H. Smet
Two-dimensional systems and interfaces
Magnetic and superconducting phases at the LaAlO3-SrTiO3 interface
N. Pavlenko and J. Mannhart
Probing the electronic compressibility of LaAlO3-SrTiO3 interfaces by Kelvin probe microscopy
C. Richter and J. Mannhart
Long-range transfer of electron-phonon coupling in oxide superlattices
N. Driza, S. Blanco-Canosa, M. Bakr, S. Soltan, M. Khalid, L. Mustafa, K. Kawashima, G. Christiani, H.-U. Habermeier, G. Khaliullin, C. Ulrich, M. Le Tacon, and B. Keimer
Atomic effective pseudopotentials for semiconductor nanostructures calculations
Cardenas and G. Bester
Physics and chemistry on the nanoscale
The Quantum Magnetism of Individual Manganese-12-Acetate Molecular Magnets Anchored at Surfaces
S. Kahle, Z. Deng, N. Malinowski, C. Tonnoir, A. Forment-Aliaga, N. Thontasen, G. Rinke, S. Rauschenbach, M. Ternes, and K. Kern
Atomically assembled antiferromagnets
D.-J. Choi, S. Yan, and S. Loth
Stereoselectivity and electrostatics in charge-transfer Mn- and Cs-TCNQ4 networks on Ag(100)
N. Abdurakhmanova, T.-C. Tseng, S. Stepanow, and K. Kern
High-mobility 3D topological insulator nanoplatelets on hBN sheets
P. Gehring, B. Gao, M. Burghard, and K. Kern
A Close Look at Proteins
S. Rauschenbach, Z. Deng, N. Thontasen, N. Malinowski, G. Rinke, and K. Kern
Materials with technological prospects
Stimuli-responsive two-dimensional photonic crystals based on polyelectrolyte hydrogel for optically encoded sensing
C. Li and B.V. Lotsch
Porosity and stoichiometry as efficient means to optimize Li storage in anatase
D. Samuelis, J.-Y. Shin, and J. Maier
Prediction and verification of Li+ charge transfer at LiF/TiO2 interfaces
C.L. Li, D. Samuelis, K. Tang, and J. Maier
Triazine-based Carbon Nitrides for Visible-Light-Driven Hydrogen Evolution
K. Schwinghammer, B. Tuffy, M.B. Mesch, E. Wirnhier, C. Martineau, F. Taulelle, W. Schnick, J. Senker, and B.V. Lotsch
Alignment of plasmonic nanostructures to self-assembled quantum dots with sub-10 nm accuracy
K. Lindfors, M. Pfeiffer, B. Fenk, and M. Lippitz
Air-stable, high-performance organic n-channel transistors
U. Zschieschang, R. Rödel, M. Sejfic, U. Kraft, R. Hofmockel, and H. Klauk
Annual Report 2011
Unconventional properties of superconductors
Magnetic resonant mode in superconducting RbxFe2-ySe2
G. Friemel, J.T. Park, Yuan Li, J.-H. Kim, B. Keimer, and D. Inosov
Floating-zone growth of KxFe2-ySe2 single crystals
Z.C. Li, W.P. Liu, Y. Liu, G. Friemel, D.S. Inosov, R.E. Dinnebier, and C.T. Lin
Intense paramagnon excitations in a large family of high-temperature superconductors
M. Le Tacon, J. Chaloupka, M.W. Haverkort, V. Hinkov, S. Blanco-Canosa, M. Bakr, G.L. Sun, Y.T. Song, C.T. Lin, G. Khaliullin, and B. Keimer
Topologically protected surface states in non-centrosymmetric superconductors
A.P. Schnyder, P.M.R. Brydon, S. Ryu, and C. Timm
Tunnel spectroscopy of superconducting oxide interfaces
C. Richter, H. Boschker, W. Dietsche, M. Hagel, and J. Mannhart
Superconductivity in doped picene
A. Subedi and L. Boeri
Accuracy of Migdal-Eliashberg theory and Coulomb pseudopotential
J. Bauer, J.E. Han, and O. Gunnarsson
Low-dimensional carbon structures
Label-free nucleic acid biosensors using carbon nanotubes
T. Kurkina, A. Vlandas, A. Ahmad, K. Kern, and K. Balasubramanian
Unipolar circuits based on individual-carbon-nanotube transistors
H. Ryu, D. Kälblein, and H. Klauk
Thermal fluctuations of crystalline membranes and ripple formation in graphene
N. Hasselmann
Excitonic Fano resonance in free-standing graphene
D.-H. Chae, T. Utikal, S. Weisenburger, D. Ullrich, P. Herlinger, J. Smet, and M. Lippitz
Quantum Hall effect in twisted bilayer graphene
D.S. Lee, C. Riedl, T. Beringer, K. von Klitzing, U. Starke, and J.H. Smet
Ambipolar doping in quasi-free epitaxial graphene on SiC(0001) controlled by Ge intercalation
K.V. Emtsev, C. Coletti, S. Forti, and U. Starke
Tailoring the properties of complex materials
Josephson currents in the bilayer exciton condensate
X. Huang, W. Dietsche, M. Hauser, and K. v. Klitzing
Tunable one-dimensional photonic crystals based on metal-organic framework, silica and titania nanoparticles as sensing platforms
I. Pavlichenko, A. Ranft, A.T. Exner, G. Scarpa, P. Lugli, F. Hinterholzinger, J.M. Feckl, T. Bein, and B.V. Lotsch
Field-effect devices utilizing the two-dimensional electron liquid generated at LaAlO3-SrTiO3 interfaces
C. Richter and J. Mannhart
The fractional quantum Hall effect in wide quantum wells
J. Nübler, B. Friess, K. v. Klitzing, and J.H. Smet
A universal representation of the states of chemical matter including metastable configurations in phase diagrams
M. Jansen, I.V. Pentin, and J.C. Schön
Materials with technological prospects
LiFePO4: From single crystals to nanostructures
C. Zhu, K. Weichert, L. Gu, and J. Maier
Novel semi-solid electrolytes for Li-based batteries
C. Pfaffenhuber, K. Weichert, A. Wohlfarth, K.-D. Kreuer, and J. Maier
Searching for fast oxygen exchange kinetics: (Bi,Sr)(Fe,Co)O3-δ perovskites
A. Wedig, R. Merkle, B. Stuhlhofer, H.-U. Habermeier, E. Heifets, and J. Maier
Modeling enzyme function at surfaces
S. Stepanow, N. Lin, A. Dmitriev, J. Honolka, and K. Kern
Flexible low-voltage organic transistors based on a novel, high-mobility organic semiconductor
U. Zschieschang, U. Kraft, R. Rödel, M. Sejfic, and H. Klauk
Optical Nano-Antennas
R. Vogelgesang, M. Eßlinger, W. Khunsin, and K. Kern
Structure and properties of crystalline compounds
Disorder in rare earth metal halide carbide nitrides
A. Simon, C. Schaloske, and Hj. Mattausch
Mesostructured imidazolate frameworks
S.C. Junggeburth, K. Schwinghammer, K.S. Virdi, C. Scheu, and B.V. Lotsch
Prediction of new structure candidates for quasi one-dimensional Wigner crystals Na1+xCuO2 (0 ≤ x ≤ 1) by enumeration
J. Nuss, N.Z. Ali, U. Wedig, and M. Jansen
Structural and electronic ordering phenomena in fullerides
K.Yu. Amsharov and M. Jansen
Symmetry mode based parametric Rietveld refinement of the structural phase transition of CuInSe2
M. Müller and R.E. Dinnebier
Tuning the structural instability of SrTiO3 by Eu doping: the phase diagram of Sr1-xEuxTiO3
A. Bussmann-Holder, J. Köhler, and R.K. Kremer
Density functional analysis of the electronic structure of Cs9InO4: Evidence for the presence of a Cs- anion
J. Köhler, A. Simon, and C. Hoch
Vibrational properties of colloidal semiconductor nanoclusters
P. Han and G. Bester
Relativistic effects on homonuclear triel clusters
U. Wedig, J. Nuss, V. Saltykov, P. Dasari, F. Wang, and M. Jansen
Electronic correlations
Multiplet ligand-field theory using Wannier orbitals
M.W. Haverkort and O.K. Andersen
Spin-Peierls transition in TiPO4
J.M. Law, C. Hoch, and R.K. Kremer
Anisotropic optical response of the mixed-valent Mott-Hubbard insulator NaCu2O2
A. Yaresko, Y. Matiks, A.V. Boris, B. Keimer, and O.K. Andersen
A tunable two-impurity Kondo system in an atomic point contact
J. Bork, Y. Zhang, P. Wahl and K. Kern
Singular order parameter interaction at nematic quantum critical point
W. Metzner and S.C. Thier