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Universal low-temperature behavior of frustrated quantum antiferromagnets in the vicinity of the saturation field
Derzhko, O.; Richter, J. - In: The European Physical Journal B - Condensed Matter and … 52 (2006) 1, pp. 23-36
We study the low-temperature thermodynamic properties of a number of frustrated quantum antiferromagnets which support localized magnon states in the vicinity of the saturation field. For this purpose we use (1) a mapping of the low-energy degrees of freedom of spin systems onto the hard-core...
Persistent link: https://www.econbiz.de/10009280918
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Tarifänderungen im Inlands-dienst vom 30. Januar 1933 bis 30. September 1937
Richter, J. - In: Jahrbuch des Postwesens (1937), pp. 420-459
Persistent link: https://www.econbiz.de/10002691477
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Exact diagonalization of the S=1/2 XY ferromagnet on finite bcc lattices to estimate T=0 properties on the infinite lattice
Schulenburg, J.; Flynn, J.S.; Betts, D.D.; Richter, J. - In: The European Physical Journal B - Condensed Matter and … 21 (2001) 2, pp. 191-204
Persistent link: https://www.econbiz.de/10010843744
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Telework at Home: The Home and the Organization Perspective
Richter, J.; Meshulam, I. - In: Human systems management : HSM 12 (1993) 3, pp. 193-204
Persistent link: https://www.econbiz.de/10006868839
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Der Einfluss der gesamtwirtschaftlichen Nachfrageaggregate auf die Produktions- und Beschäftigungsstruktur - eine quantitative Input-Output-Analyse
Stäglin, Reiner; Edler, Dietmar; Schintke, Joachim; … - In: Zeitschrift für Wirtschafts- und Sozialwissenschaften … 114 (1994) 2, pp. 305-307
Persistent link: https://www.econbiz.de/10006409347
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Ground-state long-range order in quasi-one-dimensional Heisenberg quantum antiferromagnets: high-order coupled-cluster calculations
Zinke, R.; Schulenburg, J.; Richter, J. - In: The European Physical Journal B - Condensed Matter and … 61 (2008) 2, pp. 147-152
We investigate the ground-state magnetic long-range order of quasi-one-dimensional quantum Heisenberg antiferromagnets for spin quantum numbers s=1/2 and s=1. We use the coupled cluster method to calculate the sublattice magnetization and its dependence on the inter-chain coupling J<Subscript>⊥</Subscript>. We find...</subscript>
Persistent link: https://www.econbiz.de/10009280758
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The spin-1/2 J<Subscript>1</Subscript>–J<Subscript>2</Subscript> Heisenberg antiferromagnet on the square lattice: Exact diagonalization for N=40 spins
Richter, J.; Schulenburg, J. - In: The European Physical Journal B - Condensed Matter and … 73 (2010) 1, pp. 117-124
Persistent link: https://www.econbiz.de/10009281179
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Recursion method and one-hole spectral function of the Majumdar-Ghosh model
Kuzian, R.; Hayn, R.; Richter, J. - In: The European Physical Journal B - Condensed Matter and … 35 (2003) 1, pp. 21-31
We consider the application of the recursion method to the calculation of one-particle Green’s functions for strongly correlated systems and propose a new way how to extract the information about the infinite system from the exact diagonalisation of small clusters. Comparing the results for...
Persistent link: https://www.econbiz.de/10009281287
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Magnetic properties of the quantum spin-<InlineEquation ID="IEq1"> <EquationSource Format="TEX">$\frac{1}{2}$</EquationSource> </InlineEquation> XX diamond chain: the Jordan-Wigner approach
Verkholyak, T.; Strečka, J.; Jaščur, M.; Richter, J. - In: The European Physical Journal B - Condensed Matter and … 80 (2011) 4, pp. 433-444
The Jordan-Wigner transformation is applied to study magnetic properties of the quantum spin-<InlineEquation ID="IEq2"> <EquationSource Format="TEX">$\frac{1}{2}$</EquationSource> </InlineEquation> XX model on the diamond chain. Generally, the Hamiltonian of this quantum spin system can be represented in terms of spinless fermions in the presence of a gauge field and different...</equationsource></inlineequation>
Persistent link: https://www.econbiz.de/10009282463