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Перегляд Condensed Matter Physics за автором "Richter, J."

Репозиторій DSpace/Manakin

Перегляд Condensed Matter Physics за автором "Richter, J."

Сортувати за: Порядок: Результатів:

  • Entropy of fermionic models on highly frustrated lattices 
    Honecker, A.; Richter, J. (Condensed Matter Physics, 2005)
    Spinless fermions on highly frustrated lattices are characterized by the lowest single-particle band which is completely flat. Concrete realizations are provided by the sawtooth chain and the kagome lattice. For these ...
  • Semiquantitative theory for high-field low-temperature properties of a distorted diamond spin chain 
    Derzhko, O.; Richter, J.; Krupnitska, O. (Condensed Matter Physics, 2012)
    We consider the antiferromagnetic Heisenberg model on a distorted diamond chain and use the localized-magnon picture adapted to a distorted geometry to discuss some of its high-field low-temperature properties. More ...
  • The Heisenberg antiferromagnet on the square-kagomé lattice 
    Richter, J.; Schulenburg, J.; Tomczak, P.; Schmalfuß, D. (Condensed Matter Physics, 2009)
    We discuss the ground state, the low-lying excitations as well as high-field thermodynamics of the Heisenberg antiferromagnet on the two-dimensional square-kagom´e lattice. This magnetic system belongs to the class of ...
  • The spin-1/2 Heisenberg ferromagnet on the pyrochlore lattice: A Green's function study 
    Hutak, T.; Müller, P; Richter, J.; Krokhmalskii, T.; Derzhko, O. (Condensed Matter Physics, 2018)
    We consider the pyrochlore-lattice quantum Heisenberg ferromagnet and discuss the properties of this spin model at arbitrary temperatures. To this end, we use the Green’s function technique within the random-phase (or ...

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