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Number of items: 80.

Article

Schneider, Johannes and Hirtreiter, Christian and Morgenstern, Ingo (2009) On the problem of finding a suitable distribution of students to universities in Germany. Physica A Statistical Mechanics and its Applications 388 (20), pp. 4475-4483. Volltext nicht vorhanden.

Bogner, Ludwig and Alt, Marco and Discherl, Thomas and Morgenstern, Ingo and Latscha, Christof and Rickhey, Mark (2009) Fast direct Monte Carlo optimization using the inverse kernel approach. Physics in Medicine and Biology 54 (12), pp. 4051-4067. Zugang zum Volltext eingeschränkt.
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Ebersbach, Anja and Schneider, Johannes and Morgenstern, Ingo (2001) Simulating traffic on german Highways based on the Nagel-Schreckenberg-Model. International Journal of Modern Physics C (ijmpc) 12 (7), pp. 1081-1089. Volltext nicht vorhanden.

Bentner, Johannes and Bauer, Günter and Obermair, Gustav M. and Morgenstern, Ingo and Schneider, Johannes (2001) Optimization of the time-dependent traveling salesman problem with Monte Carlo methods. Physical Review E (PRE) 64 (3), 036701. Zugang zum Volltext eingeschränkt.
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Bauernfeind, M. and Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (2000) Optimization of production panning problems: A case study for assembly lines. International Journal of Modern Physics C (ijmpc) 11 (5), pp. 949-972. Volltext nicht vorhanden.

Ebersbach, Anja and Schneider, Johannes and Morgenstern, Ingo and Hammwöhner, Rainer (2000) The influence of trucks on traffic flow: An investigation on the Nagel-Schreckenberg-Model. International Journal of Modern Physics C (ijmpc) 11 (4), pp. 837-842. Volltext nicht vorhanden.

Fettes, Werner and Morgenstern, Ingo (2000) Limitations of the stochastic diagonalization and the projector QMC in the 2D Hubbard model. Computer Physics Communications Package 124 (2-3), pp. 148-168. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Fettes, Werner and Husslein, Thomas (1999) Critical current in the high-Tc Glass model. International Journal of Modern Physics C (ijmpc) 10 (7), pp. 1335-1345. Volltext nicht vorhanden.

Hackl, R. and Morgenstern, Ingo (1999) A correlation between percolation model and ising model. International Journal of Modern Physics C (ijmpc) 7 (4), pp. 609-612. Volltext nicht vorhanden.

Fettes, Werner and Morgenstern, Ingo (1999) Evidence for d-wave superconductivity in the repulsive Hubbard model. The European Physical Journal B - Condensed Matter 9 (4), pp. 635-639. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Fettes, Werner and Husslein, Thomas and Newns, Dennis M. and Pattnaik, Pratap C. (1999) Glass model, Hubbard Model and high-temperature superconductivity. International Journal of Modern Physics C (ijmpc) 10 (1), pp. 309-320. Volltext nicht vorhanden.

Schneider, Johannes and Morgenstern, Ingo and Singer, Johannes Maria (1998) Bouncing towards the optimum: Improving the results of Monte Carlo optimization algorithms. Physical Review E (PRE) 58 (4), pp. 5085-5095. Zugang zum Volltext eingeschränkt.
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Fettes, Werner and Morgenstern, Ingo (1998) Finite Size Scaling in the tt'-Hubbard Model and in BCS-Reduced Hubbard Models. International Journal of Modern Physics C (ijmpc) 9 (7), pp. 943-985. Volltext nicht vorhanden.

Fettes, Werner and Morgenstern, Ingo and Husslein, Thomas (1997) Parallelization of the exact diagonalization of the t−t′-Hubbard model. Computer Physics Communications Package 106 (1-2), pp. 1-9. Zugang zum Volltext eingeschränkt.
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Hackl, R. and Morgenstern, Ingo (1997) Rapid Close-to-Optimum Optimization by Genetic Algorithms. International Journal of Modern Physics C (ijmpc) 8 (5), pp. 1103-1117. Volltext nicht vorhanden.

Fettes, Werner and Morgenstern, Ingo and Husslein, Thomas (1997) Application of the SD Technique for Solving a BCS-Reduced Hubbard like Hamiltonian. International Journal of Modern Physics C (ijmpc) 8 (5), pp. 1037-1061. Volltext nicht vorhanden.

Schneider, Johannes and Dankesreiter, Markus and Fettes, Werner and Morgenstern, Ingo and Schmid, Martin and Singer, Johannes Maria (1997) Search-space smoothing for combinatorial optimization problems. Physica A Statistical Mechanics and its Applications 243 (1-2), pp. 77-112. Zugang zum Volltext eingeschränkt.
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Husslein, Thomas and Fettes, Werner and Morgenstern, Ingo (1997) Comparison of Calculations for the Hubbard Model Obtained with Quantum-Monte-Carlo, Exact, and Stochastic Diagonalization. International Journal of Modern Physics C (ijmpc) 8 (2), pp. 397-415. Volltext nicht vorhanden.

Husslein, T. and Morgenstern, Ingo and Newns, D. M and Pattnaik, P. C. and Singer, J. M. and Matuttis, H. G. (1996) Quantum Monte Carlo evidence for d-wave pairing in the two-dimensional Hubbard model at a van Hove singularity. Physical Review B (PRB) 54 (22), pp. 16179-16182. Zugang zum Volltext eingeschränkt.
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Schneider, Johannes and Froschhammer, Christine and Morgenstern, Ingo and Husslein, Thomas and Singer, Johannes Maria (1996) Searching for backbones — an efficient parallel algorithm for the traveling salesman problem. Computer physics communications: an international journal devoted to computational physics and computer programs in physics 96 (2-3), pp. 173-188. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Fettes, Werner and Husslein, Thomas and Matuttis, H. G. and Singer, Johannes Maria and Baur, C. (1995) Density of States in the $t^{\prime}$-Hubbard Model: Exact Diagonalisation Results. Journal de Physique I 5 (4), pp. 455-464. Volltext nicht vorhanden.

Bauernfeind, M. and Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (1994) 3D Ising model with Swendsen-Wang dynamics: a parallel approach. Physica A Statistical Mechanics and its Applications 212 (3-4), pp. 277-298. Zugang zum Volltext eingeschränkt.
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Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (1994) Efficient parallelization of the 2D Swendsen-Wang algorithm. Physica A; Statistical Mechanics and its Applications 212 (3-4), pp. 261-276. Zugang zum Volltext eingeschränkt.
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Husslein, Thomas and Newns, Dennis M. and Matuttis, H. G. and Pattnaik, Pratap C. and Morgenstern, Ingo and Singer, Johannes Maria and Fettes, Werner and Baur, C. (1994) Spin-spin correlations in the tt'-Hubbard model. Journal de Physique 1 4 (11), pp. 1573-1576. Volltext nicht vorhanden.

Kleis, U. and Singer, Johannes Maria and Morgenstern, Ingo and Husslein, Thomas and Matuttis, H. G. (1994) Experiences with re-engineering and parallelizing a high-Tc superconductivity code. Parallel Computing 20 (3), pp. 399-407. Volltext nicht vorhanden.

Hackl, R. and Matuttis, H. G. and Singer, Johannes Maria and Husslein, Thomas and Morgenstern, Ingo (1993) Parallelization of the 2D Swendsen-Wang Algorithm. International Journal of Modern Physics C (ijmpc) 4 (6), pp. 1117-1130. Volltext nicht vorhanden.

Morgenstern, Ingo and Husslein, Thomas and Singer, Johannes Maria and Matuttis, H. G. (1993) Double layer Hubbard model: off-diagonal long range order in the nodeless d-wave channel. Journal de Physique I 3 (4), pp. 1043-1051. Volltext nicht vorhanden.

Morgenstern, Ingo and Husslein, Thomas and Singer, Johannes Maria and Matuttis, H. G. (1992) Numerical simulation of the double layer Hubbard model. Journal de Physique II 2 (8), pp. 1489-1493. Volltext nicht vorhanden.

Morgenstern, Ingo and Frick, M. and Von der Linden, Wolfgang (1992) Strong correlations and electron-phonon coupling in high-temperature superconductors: a quantum Monte Carlo study. Journal de Physique I 2 (4), pp. 393-400. Volltext nicht vorhanden.

Frick, M. and Von der Linden, Wolfgang and Morgenstern, Ingo (1992) Anharmonic phonons and electronic correlations in high-Tc superconducters: A quantum Monte-Carlo study. Helvetica Physica Acta 65 (2-3), pp. 413-414. Volltext nicht vorhanden.

Frick, M. and Morgenstern, Ingo and Von der Linden, Wolfgang (1991) Anharmonic phonons and strong electronic correlations in high-TC superconductors: A Quantum Monte Carlo study. Physica C Superconductivity and its Applications 185-18 (3), pp. 1523-1524. Zugang zum Volltext eingeschränkt.
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Frick, M. and Morgenstern, Ingo and Von der Linden, Wolfgang (1991) High-temperature superconductivity in the apex-oxygen model: a quantum Monte Carlo study. Zeitschrift für Physik: B, Condensed matter 82 (3), pp. 339-345. Zugang zum Volltext eingeschränkt.
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Frick, M. and Pattnaik, P. C. and Morgenstern, Ingo and Newns, D. M and Von der Linden, Wolfgang (1990) Monte Carlo study of superconductivity in the three-band Emery model. Physical Review B (PRB) 42 (4), pp. 2665-2668. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Von der Linden, Wolfgang and Frick, M. and Raedt, H. de (1990) Quantum Monte Carlo simulations for high-Tc models. Physica B Condensed Matter 163 (1-3), pp. 641-642. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1990) Spin-glass behavior in the insulating phase of high-Tc superconductors. Physica B Condensed Matter 163 (1-3), pp. 252-254. Zugang zum Volltext eingeschränkt.
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Von der Linden, Wolfgang and Morgenstern, Ingo and Raedt, H. de (1990) Quantum Monte Carlo study of quasiparticles in the Hubbard model. Physical Review B (PRB) 41 (7), pp. 4669-4673. Zugang zum Volltext eingeschränkt.
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Frick, M. and Von der Linden, Wolfgang and Morgenstern, Ingo (1990) Local anharmonic vibrations strong correlations and superconductivity: A quantum simulation study. Zeitschrift für Physik: B, Condensed matter 81 (3), pp. 327-335. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1990) Spin-glass antiphase in high-Tc superconductors. Zeitschrift für Physik B: Condensed Matter 80 (1), pp. 7-13. Zugang zum Volltext eingeschränkt.
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Rossel, C. and Maeno, Y. and Morgenstern, Ingo (1989) Memory Effects in a Superconducting Y-Ba-Cu-O Single Crystal: A Similarity to Spin-Glasses. Physical Review Letters (PRL) 62 (6), pp. 681-684. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1989) Glassy behavior of high-Tc superconductors. IBM journal of research and development 33 (3), pp. 307-313. Volltext nicht vorhanden.

Morgenstern, Ingo (1989) Quantum-Monte-Carlo simulations for fermionic systems. Zeitschrift für Physik: B, Condensed matter 77 (2), pp. 267-273. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Müller, K. A. and Bednorz, J. G. (1988) Glassy behaviour in high-Tc superconductors. Physica B Condensed Matter 152 (1-2), pp. 85-94. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Müller, K. A. and Bednorz, J. G. (1988) Glass behavior of high-Tc superconductors. Physica C Superconductivity and its Applications 153-15 (1), pp. 59-62. Zugang zum Volltext eingeschränkt.
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Keller, H.-J. and Pümpin, B. and Kündig, W. and Odermatt, W. and Patterson, B. D. and Schneider, Johannes W. and Simmler, H. and Connell, S. and Müller, K. A. and Bednorz, J. G. and Blazey, K. W. and Morgenstern, Ingo and Rossel, C. and Savic, I. M. (1988) Internal magnetic fields in YBa2Cu3O7−δ from Muon spin rotation experiments: Discussion in terms of a glasslike superconducting state. Physica C Superconductivity and its Applications 153-15 (1), pp. 71-74. Zugang zum Volltext eingeschränkt.
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Pümpin, B. and Keller, H.-J. and Kündig, W. and Odermatt, W. and Patterson, B. D. and Schneider, J. W. and Simmler, H. and Conell, S. and Müller, K. A. and Bednorz, J. G. and Morgenstern, Ingo (1988) Internal magnetic fields in the high-temperature superconductor YBa2Cu3O7−δ from muon spin rotation experiments. Zeitschrift für Physik: B, Condensed matter 72 (2), pp. 175-180. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Würtz, D. (1988) Monte Carlo simulations for two-dimensional quantum systems. Zeitschrift für Physik B: Condensed Matter 70 (1), pp. 115-120. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1988) Monte-Carlo algorithm for a two-dimensional Hubbard model of high-Tc superconductivity. Zeitschrift für Physik: B, Condensed matter 70 (3), pp. 291-297. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1988) Numerical simulation of the single-band Hubbard model. Zeitschrift für Physik B; Condensed matter 73 (3), pp. 299-302. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1988) Possible mechanism for high-Tc superconductivity. Zeitschrift für Physik: B, Condensed matter 70 (3), pp. 299-305. Zugang zum Volltext eingeschränkt.
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Schneider, Johannes W. and Baumeler, H. and Keller, H. and Odermatt, W. and Patterson, B. D. and Müller, K. and Bednorz, J. G. and Blazey, K. W. and Morgenstern, Ingo (1987) Internal magnetic fields in the high-Tc superconductors La1.8Sr0.2CuO4 and YBa2Cu3O7−δ from muon spin rotation experiments. Physics Letters A 124 (1-2), pp. 107-111. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1987) Neural networks and chip design. Zeitschrift für Physik B; Condensed matter 67 (2), pp. 265-270. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Müller, K. A. and Bednorz, J. G. (1987) Numerical simulations of a high-Tc-superconductive glass model. Zeitschrift für Physik: B, Condensed matter 69 (1), pp. 33-47. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Würtz, D. (1987) Simulated Annealing for “spin-glass-like” optimization problems. Zeitschrift für Physik: B, Condensed matter 67 (3), pp. 397-403. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Huse, David A. (1986) Phenomenological renormalization for spin glasses. Journal of Magnetism and Magnetic Materials 54-57 (1), pp. 170-172. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and van Hemmen, J. L. (1985) Numerical simulations and exactly soluble spin-glass models. Physical Review B (PRB) 32 (9), pp. 6058-6060. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Huse, David A. (1985) Finite-size scaling study of the two-dimensional Ising spin glass. Physical Review B (PRB) 32 (5), pp. 3032-3034. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Würtz, D. (1985) Numerical evaluation of the partition-function for one-dimensional quantum-systems. Physical Review B (PRB) 32 (1), pp. 523-526. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Ogielski, Andrew T. (1985) Critical behavior of three-dimensional Ising spin-glass model. Physical Review Letters (PRL) 54 (9), pp. 928-931. Zugang zum Volltext eingeschränkt.
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Ogielski, Andrew T. and Morgenstern, Ingo (1985) Critical behavior of three‐dimensional Ising model of spin glass. Journal of Applied Physics 57 (8), pp. 3382-3385. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Würtz, D. (1985) Monte Carlo procedure for 2-dimensional fermion systems. Zeitschrift für Physik B; Condensed matter 61 (2), pp. 219-222. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and van Hemmen, J. L. (1984) Short-and long-range interactions in spin-glasses. Physical Review B (PRB) 30 (5), pp. 2934-2936. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1984) Time-dependent specific heat in spin-glasses. Physical Review B (PRB) 29 (7), pp. 4182-4184. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1984) Numerical simulations of modulated systems. Physical Review B (PRB) 29 (3), pp. 1458-1461. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Binder, Kurt (1983) Comment on "Canonical-ensemble results for the Ising model with random bonds in two dimensions". Physical Review B (PRB) 27 (9), pp. 5826-5828. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1983) Long-time behavior of spin-glasses at low temperatures. Physical Review B (PRB) 27 (7), pp. 4522-4525. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1983) Numerical simulations of spin glasses. Lecture notes in physics 192, pp. 305-327. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1982) Analytic solution of a new axial-next-nearest-neighbor model. Physical Review B (PRB) 26 (9), pp. 5296-5299. Zugang zum Volltext eingeschränkt.
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van Hemmen, J. L. and Morgenstern, Ingo (1982) On sampling of Monte Carlo data and disordered systems. Journal of Physics C: Solid State Physics 15 (20), pp. 4353-4365. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1982) Magnetization of spin-glasses in applied magnetic field at low temperatures. Physical Review B (PRB) 25 (9), pp. 6067-6070. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1982) Phase transition in the ±J Ising-spin-glass model. Physical Review B (PRB) 25 (9), pp. 6071-6073. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Horner, H. (1982) Finite energy barriers in the random-bond Ising model. Physical Review B (PRB) 25 (1), pp. 504-507. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1982) Explanation of the freezing temperature in spin glasses. Journal of Applied Physics 53 (11), pp. 7682-7683. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Binder, K. (1981) Two-dimensional Ising model in random magnetic fields. Physical Review B (PRB) 23 (1), pp. 287-297. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1981) Numerically exact solvable random-bond Ising model. Zeitschrift für Physik B; Condensed matter 41 (2), pp. 147-151. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1981) Phase transition in an Ising-spinglass-model including next-nearest-neighbor-interaction? Zeitschrift für Physik B: Condensed matter 42 (1), pp. 23-26. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo (1981) Site dilution in the fully frustrated triangular lattice in two dimensions. Zeitschrift für Physik B; Condensed matter 43 (1), pp. 33-36. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Binder, K. (1980) Magnetic correlations in three-dimensional ising spin glasses. Zeitschrift für Physik: B, Condensed matter 39 (3), pp. 227-232. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Binder, K. (1980) Magnetic correlations in two-dimensional spin-glasses. Physical Review B (PRB) 22 (1), pp. 288-303. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Binder, K. (1979) Evidence Against Spin-Glass Order in the Two-Dimensional Random-Bond Ising Model. Physical Review Letters (PRL) 43 (21), pp. 1615-1618. Zugang zum Volltext eingeschränkt.
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Morgenstern, Ingo and Binder, Kurt and Baumgärtner, Arthur (1978) Statistical mechanics of Ising chains in random magnetic fields. The Journal of Chemical Physics 69 (1), pp. 253-262. Zugang zum Volltext eingeschränkt.
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