1D spin systems

Low dimensional quantum spin systems

In systems with low dimensional magnetic interactions, geometrical frustration and small spins the macoscopic properties are strongly affected by quantum fluctuations. We aim to unveil novel ground states and effects in this class of materials and to establish new model systems. The objective is to achieve a broad understanding of the important physical parameters and to find common features in mechanisms that drive the formation of these states in strongly correlated electron systems.

Work is partially funded by DFG via the Russian-German Joint Laboratory on Quantum ground states: The role of reduced dimensionality and frustration (486 RUS 113/864/0-1).

• Telephone number compounds (Sr,Ca,La)12Cu24O41
• S=1 spin ladders in Na2Ni2(C2O4)3(H2O)2
• Frustrated edge sharing spin chains: FM vs. helical spin structures: Li2CuO2, LiZrCuO4, NaCu2O2, PbCu(SO4)(OH)2
• Diamond chain compounds: Cu3(CO3)2(OH)2

Selected publications:

• M. C. R. Gibson, K. C. Rule, A. U. B. Wolter, J.-U. Hoffmann, O. Prokhnenko, D. A. Tennant, S. Gerischer, M. Kraken, F. J. Litterst, S. Süllow, J. Schreuer, H. Luetkens, A. Brühl, B. Wolf, M. Lang

  Magnetoelastic and structural properties of azurite Cu3(CO3)2(OH)2 from neutron scattering and muon spin rotation, Physical Review B 81 (2010) 140406.

• S.-L. Drechsler, O. Volkova, A.N. Vasiliev, N. Tristan, J. Richter, M. Schmitt, H. Rosner, J. Malek, R. Klingeler, A.A. Zvyagin, B. Buechner
  Frustrated cuprate route from antiferromagnetic to ferromagnetic spin- heisenberg chains: Li2ZrCuO4 as a missing link near the quantum critical point, Physical Review Letters 98 (2007) Nr. 7, S. 77202

• S.-L. Drechsler, N. Tristan, R. Klingeler, B. Buechner, J. Richter, J. Malek, O. Volkova, A. Vasiliev, M. Schmitt, A. Ormeci, C. Loison, W. Schnelle, H. Rosner
  Helimagnetism and weak ferromagnetism in NaCu2O2 and related frustrated chain cuprates, Journal of Physics: Condensed Matter 19 (2007) Nr. 14, S. 145230/1-7 URL
• R. Leidl, R. Klingeler, B. Büchner, M. Holtschneider, W. Selke. Quenched charge disorder in CuO2 spin chains: Experimental and numerical studies. Phys. Rev. B 73, 224415 (2006)
• M. Goiran, M. Costes, J.M. Broto, F.C. Chou, R. Klingeler, E. Arushanov, S.-L. Drechsler, B. Büchner, V. Kataev. High-field ESR studies of the quantum spin magnet CaCu2O3. New J. Phys. 8, 74 (2006)
• C. Mennerich, H.-H. Klauss, M. Broekelmann, F.J. Litterst, C. Golze, R. Klingeler, V. Kataev, B. Büchner, S.-N. Grossjohann, W. Brenig, M. Goiran, H. Rakoto, J.-M. Broto, O. Kataeva, D.J. Price. Antiferromagnetic Dimers of Ni(II) in the S=1 Spin-Ladder Na2Ni2(C2O4)3(H2O)2.. Phys. Rev. B 73, 174415 (2006)
• M. v. Zimmermann, J. Geck, S. Kiele, R. Klingeler, and B. Büchner, Structural modulations in Sr14Cu24O41 and their relation to charge ordering. Phys. Rev. B 73, 115121 (2006)
• R. Klingeler, B. Büchner, K.-Y. Choi, V. Kataev, U. Ammerahl, A. Revcolevschi, J. Schnack. Revisiting the chain magnetism in Sr14Cu24O41: Experimental and numerical results. Phys. Rev. B 73 014426 (2006)
• R. Klingeler, N. Tristan, B. Büchner, M. Hücker, U. Ammerahl, A. Revcolevschi, Magnetisation of hole doped CuO2 spin chains in Sr14-xCaxCu24O41. Phys. Rev. B 72, 184406 (2005)
• H. Gerdes, A. Bosse, D. Mienert, F.J. Litterst, R. Klingeler, B. Büchner, H.-H. Klauss. Charge order and dimer formation in the Cu (S=1/2) spin chains of Sr13LaCu24O41. J. Magn. Magn. Mat. 290-291, 338 (2005)
• T. Kroll, R. Klingeler, J. Geck, B. Büchner, W. Selke, M. Hücker, A. Gukasov. Magnetism of low doped spin chains in Lax(Sr,Ca)14-xCu24O41. J. Magn. Magn. Mat. 290-291, 306 (2005)
• S.-L. Drechsler, J. Richter, J. Malek, A.S. Moskvin, R. Klingeler, H. Rosner. Spiral vs. ferro­magnetic in-chain order in edge-shared cuprates. J. Magn. Magn. Mat. 290-291, 345 (2005)