Publications 1993-2000
2000
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A. Osterloh, L. Amico, and U. Eckern,
Fermionic long-range correlations realized by particles obeying deformed statistics,
J. Phys. A 33, L487 (2000) (cond-mat/0007081).
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A. Osterloh, L. Amico, and U. Eckern,
Solvability of Generalized Schulz-Shastry type models,
Nucl. Phys. B 588, 531 (2000) (cond-mat/0003099).
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K. Ziegler
Condensation of a hard-core Bose gas
Phys. Rev. A 62, 23611 (2000)
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W. A. Atkinson, P. J. Hirschfeld, A. H. MacDonald, and K. Ziegler
Details of Disorder Matter in 2D d-Wave Superconductors
Phys. Rev. Lett. 85, 3926 (2000)
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You-Quan Li and Ulrich Eckern,
Theory for electrons with orbital degeneracy,
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S.-J. Gu, Y.-Q. Li, and H.-Q. Lin,
Thermodynamics of Kondo Model with Electronic Interactions,
J. Phys. A: Math. Gen. 33, 6799 (2000) (cond-mat/9905005).
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You-Quan Li, S.J. Gu, Z.J. Ying, and U. Eckern
One-dimensional model for doubly degenerate electrons,
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R. Staudt, M. Dzierzawa, A. Muramatsu
Phase diagram of the three-dimensional Hubbard model at half filling,
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N. B. Ivanov,
Magnon dispersions in quantum Heisenberg ferrimagnetic chains at zero temperature,
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N. B. Ivanov and U. Schollwöck,
Quantum Heisenberg ferrimagnetic chains,
in Contemporary Problems in Condensed Matter Physics (Nova Publishers, New York, in press).
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A. Osterloh, L. Amico, and U. Eckern,
Bethe Ansatz solution of a new class of Hubbard-type models,
J. Phys. A. 33, L87 (2000) (cond-mat/9812317).
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M. Leadbeater, R. Raimondi, P. Schwab, and C. Castellani,
Non-linear conductivity and quantum interference in disordered metals,
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P. Schwab and C. Castellani,
Comment on ``Metal-Insulator Transition of Disordered Interacting Electrons'',
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P. Schwab,
Persistent current in metals with a large dephasing rate,
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Y.-Q. Li,
Commutation relations in mesoscopic electric circuits,
International Conference on Spin-Statistics Connection and
Commutation Relations- Experimental Tests and Theoretical Implications,
AIP conference proceedings Vol.552 (New York 2000), pp. 85-91 (cond-mat/0009352).
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V. Eyert,
Basic notions and applications of the augmented spherical wave method,
Int. . Chem. 77, 1007-1031 (2000), Special Issue: Electronic Structure of Materials, edited by M. Defranceschi.
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V. Eyert, R. Horny, K.-H. Höck, and S. Horn,
Embedded Peierls instability and the electronic structure of MoO2,
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J. Augustin, V. Eyert, Th. Böker, W. Frentrup, H. Dwelk, C. Janowitz and R. Manzke,
Electronic band structure of the layered compound Td-WTe2,
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V. Eyert and U. Eckern,
Bandstruktur - Von der Quantenmechanik zum Materialdesign,
Physik in unserer Zeit 31, 276-282 (2000).
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A. Klein, S. Tiefenbacher, V. Eyert, C. Pettenkofer, and W. Jaegermann,
Electronic properties of WS2 monolayer films,
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I. Luck, V. Eyert, M. Fieber-Erdmann, E. Holub-Krappe, and R. Scheer,
Investigations on the Emergence of the Bandgap Anomaly between II-VI and their analogous I-III-VI2 Compounds on the Basis of the Zn2-2xCuxInxS2 Solid Solution System,
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S. F. Matar, F. Grasset, V. Eyert, and J. Etourneau,
Local Spin Density Functional Investigation of the High Pressure Phase of Iron Monoxide,
in: Ferrites: Proceedings of the 8th International Conference on Ferrites (ICF 8),
edited by M. Abe and Y. Yamazaki,
(The Japan Society of Powder and Powder Metallurgy, 2000), pp. 290-292.
1999
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S. Villain-Guillot, G. Jug, and K. Ziegler,
Tails of Localized Density of States of Two-dimensional Dirac Fermions,
to appear in Annalen der Physik (cond-mat/9908318).
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M. Letz and K. Ziegler,
Level Statistics and Localization for 2D Quantum Percolation,
Phil. Mag. B 79 (3) 491-499 (1999).
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G. Jug and K. Ziegler,
Anomalous Frequency-Dependent Conductivity near the Quantum Hall Transition,
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D. Bormann, H. Beck, O. Gallus, and M. Capezzali,
Dynamics of the 2D two-component plasma near the Kosterlitz-Thouless transition,
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D. Bormann, H. Beck, O. Gallus, and M. Capezzali,
Anomalous vortex mobility and critical slowing down at the Kosterlitz-Thouless transition, preprint (August 99).
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Y.-Q. Li and B. Chen,
Quantum Theory for Mesoscopic Electric Circuits and its Applications,
3rd IMASS/IEEE international multi conference CSCC99, Athens.
Advances in Intelligent Systems and Computer Science (WSES press 1999) pp. 267-272 (cond-mat/9907171).
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Y.-Q. Li, M. Ma, D.-N. Shi, and F.-C. Zhang,
Ground State and Excitations of Spin Chain with Orbital Degeneracy,
- V. Eyert, K.-H. Höck, S. Horn, A. Loidl, and P. S. Riseborough,
Electronic structure and magnetic interactions in LiV2O4,
Europhys. Lett. 46< /b>, 762-767 (1999) (cond-mat/9906194). - J. E. Han, O. Gunnarsson, and V. Eyert,
Phonon line shape in disordered A3C60 (A=K, Rb),
Phys. Rev. B 60, 6495-6501 (1999) (cond-mat/9902191). -
P. C. Schmidt, V. Eyert, J. Sticht, and K. C. Mishra,
Host Excitation and Luminescence in Large Band Gap Oxides,
in: Luminescent Materials, edited by J. McKittrick, A. Kitai, K. Mishra, C. Ronda, and B. DiBartolo,
Mat. Res. Soc. Symp. Proc. 560 (1999), in press.
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C. Schuster and U. Eckern,
Ground state properties of disordered and dimerized spin chains,
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R. Gade,
An integrable sl(2|1) vertex model for the spin quantum Hall critical point,
Phys. A: Math. Gen. 32 No 41 (15 October 1999) 7071-7082
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R. Staudt, M. Dzierzawa, and A Muramatsu,
Quantum Monte Carlo simulations of the three-dimensional Hubbard model,
Ann. Phys. (Leipzig) 8 (1999) Spec. Issue, 249-252.
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Y. Wang and U. Eckern,
Scalar Potential Effect in an Integrable Kondo Model,
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J.-H. Dai, Y. Wang, and U. Eckern,
Ghost Spins and Novel Quantum Critical Behavior in a Spin Chain with Local Bond-Deformation,
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Y. Wang, J.-H. Dai, F.-C. Pu, and U. Eckern,
Enhancement of Pair Correlation in a One-dimensional Hybridization Model
1998
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U. Eckern and K. Ziegler
Transport in a nearly periodic potential with a magnetic field
J. Phys.: Condensed Matter 10, 6749-6760 (1998).
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C. Schuster and U. Eckern
Interaction versus dimerization in one-dimensional Fermi systems
Eur. Phys. J. B 5, 395-402 (1998).
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L. Amico, A. Osterloh, and U. Eckern
One-Dimensional XXZ Model for Particles Obeying Fractional Statistics
Phys. Rev. B 58, R1703 (1998).
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V. Eyert and K.-H. Höck
The electronic structure of V2O5: Role of octahedral deformation
Phys. Rev. B 57, 12727-12737 (1998).
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V. Eyert, K.-H. Höck, S. Fiechter, and H.Tributsch
Electronic structure of FeS2: The crucial role of electron-lattice interaction
Phys. Rev. B 57, 6350-6359 (1998).
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P. Schmitteckert, T. Schulze, C. Schuster, P. Schwab, and U. Eckern
Anderson-localization versus delocalization of interacting fermions in one dimension
Phys. Rev. Lett. 80, 560-563 (1998).
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R. Gade
Universal R-Matrix and graded Hopf algebra structure of Uq(gl(2|2))
J. Phys. A 31 (1998) 4904 -4925.
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K. Ziegler, M.H. Hettler and P.J. Hirschfeld
Lower Bound for the Fermi Level Density of States of a Disordered D-Wave Superconductor in Two Dimensions
Phys. Rev. B 57, 10825 (1998).
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K. Ziegler
Delocalization of 2D Dirac Fermions: the Role of a Broken Supersymmetry
Phys. Rev. Lett. 80, 3113 (1998).
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K. C. Mishra, B. G. DeBoer, P. C. Schmidt, I. Osterloh, M. Stephan, V. Eyert, and K. H. Johnson,
Electronic Structures and Nature of Host Excitation in Borates,
Ber. Bunsenges. Phys. Chem. 102, 1772-1782 (1998).
1997
- C. R. Werner and U. Eckern
Non-linear conductivity of charge-density-wave systems
Ann. Physik 6 (1997) 595-610 - R. Gade
On the Quantum Affine Superalgebra Uq(gl(2|2))
Nuclear Physics B 500 [PM] (1997) 547-564 - U. Eckern, G. Luciano, A. Tagliacozzo
Dynamical mass of a quantum vortex in a Josephson junction array
Phys. Rev. B 56, 14686-92 (1997) - D. Bormann
Charge Transport in the Dense Two-Dimensional Coulomb Gas
Phys. Rev. Lett. 78, 4324 (1997) - P. Schwab and U. Eckern
Persistent current induced by magnetic impurities.
Z. Phys. B 103, 97-103 (1997) - K. Ziegler and G. Jug
Is the Peak value of sigmaxx at the Quantum Hall Transition Universal?
Z.Physik B 104, 5 (1997) - G. Jug and K. Ziegler
Characterization of the Local Density of States Fluctuations near the Integer Quantum Hall Transition in a Quantum Dot Array
Phys. Rev. B 56, 9789 (1997) - K. Ziegler and A. Shukla
Bose-Einstein Condensation in a Trap: the Case of a Dense Condensate
Phys. Rev. A 56, 1438 (1997) - K. Ziegler
One-Dimensional Interacting Random Walks in Random Environment
in "Nonequilibrium Statistical Mechanics in One Dimension",
ed. V. Privman (Cambridge University Press 1997) - K. Ziegler
Scaling behavior and universality near the quantum Hall transition
Phys. Rev. B 55, 10661 (1997) - K. Ziegler (without figures)
Quantum Hall transition in an array of quantum dots
Phys. Rev. B 55, 10602 (1997) - K. Ziegler, M. H. Hettler and P. J. Hirschfeld
Reply to the Comment by A. A. Nersesyan and A. M. Tsvelik on "Nonzero Fermi Level Density of States for Disordered d-Wave Superconductors in Two Dimensions"
Phys. Rev. Lett. 78, 3982 (1997) - S. Dieterle and K. Ziegler
Recursive Treatment of One-Dimensional Interacting Random Walks
Proceedings of Algoritmy '97
1996
- K. Ziegler, M. H. Hettler, and P. J. Hirschfeld
Non-Zero Fermi Level Density of States for a Disordered d-Wave Superconductor in Two Dimensions
Phys. Rev. Lett. 77, 3013 (1996). - P. Schmitteckert, P. Schwab, and U. Eckern
Reply to the Comment by A.A. Zvyagin and H. Johannesson on our paper "Quantum Coherence in an Exactly Solvable One-dimensional Model with Defects".
Europhys. Lett. 35, 153 (1996). - P. Schmitteckert and U. Eckern
Phase Coherence in a Random One-Dimensional System of Interacting Fermions: A Density Matrix Renormalization Group Study.
Phys. Rev. B - Brief Reports 53, 15397 (1996). - P. Schwab and U. Eckern
Impurity Spin Dynamics and Quantum Coherence in Mesoscopic Rings.
Ann. Phys. (Leipzig) 5, 57-87 (1996). - C. Kübert and A. Muramatsu
Gauge Theory for a Doped Antiferromagnet in a Rotating Reference-Frame
Int. J. of Mod. Phys. B, Vol. 10, No. 28, 3807-3826 (1996). - K. Ziegler
Dirac Fermions with Disorder in Two Dimensions: Exact Results
Phys. Rev. B 53, 9653 (1996). - K. Ziegler
Functional Integration in Bose Systems with Hard-Core Interaction
in ``Path Integrals: Dubna '96'', S. 305, Ed. V. S. Yarunin and M. A. Smondyrev.
1995
- U. Eckern and K.-H. Höck
Elektronen -- fast so schwer wie Wasserstoff
Physik in unserer Zeit 2/1995, pp. 83-87 - U. Eckern and P. Schwab
Normal Persistent Currents.
Adv. Phys. 44, 387-404 (1995). - G. Luciano, U. Eckern, and J.G. Kissner
Effect of external charges on the quantum superconductor - insulator transition in a Josephson junction array.
Europhys. Lett. 32, 669-674 (1995) - G. Luciano, U. Eckern, J.G. Kissner, and A. Tagliacozzo
Quantum vortex dynamics in a Josephson junction array frustrated by external charges
J. Phys.: Condensed Matter 8, 1241-1255 (1996) - P. Schmitteckert, P. Schwab and U. Eckern
Quantum Coherence in an Exactly Solvable One-dimensional Model with Defects.
Europhys. Lett. 30, 543-548 (1995) - C. Kübert and A. Muramatsu
Quantum disordered phase in a doped antiferromagnet.
Europhys. Lett. 30, 481 (1995). - A. Angelucci
Effective lattice actions for correlated electrons.
Phys. Rev. B 51, 11580-11583 (1995) - A. Angelucci, S. Sorella and D. Poilblanc
Large physical spin approach for strongly correlated electrons.
Physics Letters A, Volume 198, Issue 2, 20 February 1995, pp. 145-150 - M. Hettler and K. Ziegler
Phase Transitions of Fermions Coupled to a Gauge Field: a Quantum Monte Carlo Approach
Physica A 218, 461 (1995). - G. Forgacs and K. Ziegler
An Exactly Soluble Model of Directed Polymers with Multiple Phase Transition
Europhys. Lett. 29, 705 (1995). - K. Ziegler and A.M.M. Pruisken
Incommensurate Phase on a Disordered Surface: Instability Against the Formation of Overhangs and Finite Loops
Phys. Rev. E 51, 3359 (1995). - K. Ziegler
Two-Dimensional Electrons in a Strong Magnetic Field with Disorder: Divergence of the Localization Length
Europhys. Lett. 31, 549 (1995).
1994
- R. Bartussek, P. Hänggi, and J.G. Kissner
Periodically Rocked Thermal Ratchets.
Europhys. Lett. 28, 459-464 (1994). - T.A. Costi, P.Schmitteckert, J. Kroha, and P. Wölfle
Infrared Divergences in the Kondo Problem.
Physica C 235-240, 2287-2288 (1994). - T.A. Costi, P.Schmitteckert, J. Kroha, and P. Wölfle
Numerical renormalisation group study of pseudo-fermion and slave-boson spectral functions in the single impurity Anderson Model.
Phys. Rev. Lett. 73, No. 9, p 1275-1278 (1994) . - U. Eckern
Superconductivity in restricted geometries
Physica B 203, 448-453 (1994). - K. Ziegler
Dilute System of Hard-core Bosons: a Soluble Limit
Physica A 208, 177 (1994). - K. Ziegler
Integer Quantum Hall Effect for Lattice Fermions
Europhys. Lett. 28, 49 (1994). - K. Ziegler
Comment on ``Critical Behavior of the Specific Heat in the Two Dimensional Site Diluted Ising System''
Phys. Rev. Lett. 73, 3488 (1994).
1993
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U. Eckern, E. B. Sonin
Vortex Mass and Viscosity in Josephson Junction Arrays
Phys. Rev. B 47, 505-508 (BR) (1993) -
U. Eckern, A. Schmid
Stochastic Fluctuations of Persistent Currents in Mesoscopic Rings
Ann. Phys. (Berlin) 2 [505], 180-200 (1993) -
J. G. Kissner, U. Eckern
Mean-Field Theories for the Quantum Phase Transition in Josephson Junction Arrays
Z. Phys. B 91, 155-160 (1993) -
U. Eckern
Persistent Current Fluctuations in Mesoscopic Rings in the Presence of Spin Effects
Physica Scripta T 49, 338-342 (1993)