CRC 1143 – Correlated Magnetism
As part of the collaborative research centre CRC 1143 - “Correlated Magnetism: From Frustration to Topology”, we are currently investigating two families of compounds with triangular or honeycomb arrangements of magnetically active cations. Specifically, we are investigating delafossites with a general composition of AMX2 and ferrates, such as
K2–xFe4O7–x(OH)x.
The delafossites that are being investigated have an undistorted trigonal arrangement of magnetically active cations with preferential antiferromagnetic coupling. At very low temperatures, magnetic frustration is then observed because in this arrangement, not all of the neighbouring magnetic moments can simultaneously align antiparallel to one another. For ions with an effective moment of Jeff = ½ this may result in a non-singularly ordered ground state. Instead, a superposition of states with minimal energy may result which is known as a quantum spin liquid (QSL); the underlying theory was proposed by Anderson in the middle of the 1970’s. Up to now, no real compound with an unquestionably proven QSL ground state has been identified. However, within our group we have been able to prepare a material that comes closer to Anderson’s prediction than any other material so far: NaYbS2. Besides the Yb-based delafossites, our group also focusses on Ce- and Ti-based delafossites, which are also comprehensively characterised within the CRC.
The second group of compounds investigated within our group contain a honeycomb net arrangement of magnetically active ions. With a suitable magnetic coupling, a magnetically frustrated ground state may also result. Transition metal halides such as a-RuCl3 have been studied extensively in this regard over the last couple of years, also within the CRC. In order to tune the frustration, the interactions between the honeycomb nets play an important role and can be influenced by the structural design. In ferrates such as K2–xFe4O7–x(OH)x the honeycomb nets are connected via tetrahedral pairs that act as spacers. By varying the ions within these pairs, the coupling between the honeycomb nets can be accessed and the magnetic properties can be varied accordingly.
Principal investigators
Mr Prof. Dr. Michael Ruck
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Chemie/Hydrowissenschaften, CHE 464 Bergstraße 66
01069 Dresden
Private Lecturer and Associated Professor
NameMr Prof. Dr. rer. nat. habil. Thomas Doert
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Chemie/Hydrowissenschaften, CHE 456 Bergstraße 66
01069 Dresden
Co-workers
Doktorandin
NameMs Ellen Häußler M.Sc.
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Chemie/Hydrowissenschaften, 4th Floor, Room 458 Bergstraße 66
01069 Dresden
Doktorand
NameMr Manuel Schulze M. Sc.
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Chemie/Hydrowissenschaften, CHE 458 Bergstraße 66
01069 Dresden
Literature
Delafossites
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Häußler, Ellen: Synthese und Charakterisierung von Thio und Selenodelafossiten LiTiS2, LiTiSe2 und NaYb1-xLuxS2. Dresden, Technische Universität, Master thesis, 2019
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K. M. Ranjith, S. Luther, T. Reimann, B. Schmidt, P. Schlender, J. Sichelschmidt, H. Yasuoka, A. M. Strydom, I. Scurschii, J. Wosnitza, H. Kühne, T. Doert, M. Baenitz,
Anisotropic field-induced ordering in the triangular-lattice quantum spin liquid NaYbSe2, Phys. Rev. B 100, 224417 (2019) (arXiv) -
R. Sarkar, Ph. Schlender, V. Grinenko, E. Haeussler, Peter J. Baker, Th. Doert, H.-H. Klauss, Quantum spin liquid ground state in the disorder free triangular lattice NaYbS2, Phys. Rev. B 100, 241116(R) (2019) (arXiv)
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G. Bastien, B. Rubrecht, E. Haeussler, P. Schlender, Z. Zangeneh, S. Avdoshenko, R. Sarkar, A. Alfonso, S. Luther, Y. A. Onykiienko, H. C. Walker, H. Kühne, V. Grinenko, Z. Guguchia, V. Kataev, H.-H. Klauss, L. Hozoi, J. van den Brink, D. S. Inosov, B. Büchner, A. U. B. Wolter, T. Doert, Long-range magnetic order in the S = 1/2 triangular lattice antiferromagnet KCeS2, SciPost Physics 9, 041 (2020) (arXiv)
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A. A. Kulbakov, S. M. Avdoshenko, I. Puente-Orench, M. Deep, M. Doerr, P. Schlender, T. Doert, D. S. Inosov, Stripe-yz magnetic order in the triangular-lattice antiferromagnet KCeS2, J. Phys.: Condens. Matter 33, 425802 (2021) (arXiv)
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B. Schmidt, J. Sichelschmidt, K. M. Ranjith, Th. Doert, M. Baenitz, Yb delafossites: unique bond dependent exchange frustration of 4f spin 1/2 moments on a perfect triangular lattice, Phys. Rev. B. 103, 214445 (2021) (arXiv)
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E. Häußler, J. Sichelschmidt, M. Baenitz, E. C. Andrade, M. Vojta, T. Doert,
Diluting a triangular-lattice spin liquid: Synthesis and characterization of NaYb1-xLuxS2 single crystals,Phys. Rev. Mater. 6, 046201(2022) (arXiv)
Ferrates
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R. Albrecht, J. Hunger, M. Hölzel, R. Pöttgen, T. Block, Th. Doert, M. Ruck,
Antiferromagnetic Alkali Metal Oxohydroxoferrates(III) with Correlated Hydrogen Bonding Systems, ChemistryOpen 8, 1399–1406 (2019) -
R. Albrecht, M. Hoelzel, H. Beccard, M. Rüsing, L. Eng, Th. Doert, M. Ruck, Potassium Ion Conductivity in the Cubic Labyrinth of a Piezoelectric, Antiferromagnetic Oxoferrate(III)-Tellurate(VI), Chem. Eur. J. 27, 14299 (2021)
TM trihalides
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R. Hentrich, M. Roslova, A. Isaeva, T. Doert, W. Brenig, B. Büchner, C. Hess,
Large thermal Hall effect in α-RuCl3: Evidence for heat transport by Kitaev-Heisenberg paramagnons, Phys. Rev. B 99, 085136 (2019) -
G. Bastien, M. Roslova, M. H. Haghighi K. Mehlawat, J. Hunger, A. Isaeva, T. Doert, M. Vojta, B. Büchner, A. U. B. Wolter, Spin-glass state and reversed magnetic anisotropy induced by Cr doping in the Kitaev magnet α-RuCl3, Phys. Rev. B 99, 214410 (2019) (arXiv)
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M. Roslova, J. Hunger, G. Bastien, D. Pohl, H. Haghighi, A.U.B. Wolter, A. Isaeva, U. Schwarz, B. Rellinghaus, K. Nielsch, B. Büchner, T. Doert, Detuning the Honeycomb of the α-RuCl3 Kitaev lattice: A case of Cr3+ dopant, Inorg. Chem. 58, 6659-6668 (2019)
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A. Koitzsch, E. Müller, M. Knupfer, B. Büchner, D. Nowak, A. Isaeva, Th. Doert, M. Grüninger, S. Nishimoto, J. van den Brink, Low temperature enhancement of ferromagnetic Kitaev correlations in α-RuCl3, Phys. Rev. Mater. 4, 094408 (2020) (arXiv)
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R. Hentrich, X. Hong, M. Gillig, F. Caglieris, M. Culo, M. Shahrokhvand, U. Zeitler, M. Roslova, A. Isaeva, T. Doert, L. Janssen, M. Vojta, B. Büchner, C. Hess, High-field thermal transport properties of the Kitaev quantum magnet α-RuCl3: evidence for low-energy excitations beyond the critical field, Phys. Rev. B 102, 235155 (2020) (arXiv)
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T. Klaproth, E. Müller, C. Habenicht, B. Büchner, M. Knupfer, M. Roslova, A. Isaeva, T. Doert, A. Koitzsch, Tuning the electronic structure of the trichloride honeycomb lattice by transition metal substitution, Phys. Rev. Mater. 6, 01400 (2022)
Manganese Bismuth Tellurides
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R. C. Vidal, A. Zeugner, J. I. Facio, R. Ray, M. H. Haghighi, A. U. B. Wolter, L. T. Corredor Bohorquez, F. Caglieris, S. Moser, T. Figgermeier, T. R. F. Peixoto, H. B. Vasili, M. Valvidares, S. Jung, C. Cacho, A. Alfonsov, K. Mehlawat, V. Kataev, Ch. Heß, M. Richter, B. Büchner, J. van den Brink, M. Ruck, F. Reinert, H. Bentmann, A. Isaeva, Topological electronic structure and intrinsic magnetization in MnBi4Te7: a Bi2Te3-derivative with a periodic Mn sublattice,
Phys. Rev. X. 9, 041065 (2019) (arXiv) -
R. C. Vidal, H. Bentmann, T.R.F. Peixoto, A. Zeugner, S. Moser, C.H. Min, S. Schatz, K. Kißner, M. Ünzelmann, C. I. Fornari, H. B. Vasili, M. Valvidares, K. Sakamoto, J. Fujii, I. Vobornik, T. K. Kim, R. J. Koch, C. Jozwiak, A. Bostwick, J. D. Denlinger, E. Rotenberg, J. Buck, M. Hoesch, F. Diekmann, S. Rohlf, M. Kalläne, K. Rossnagel, M.M. Otrokov, E.V. Chulkov, M. Ruck, A. Isaeva, F. Reinert, Surface states and Rashba-type spin polarization in antiferromagnetic MnBi2Te4 (0001). Phys. Rev. B. 100, 121104(R) (2019) (arXiv)
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A. Zeugner, F. Nietschke, A. U. B. Wolter, S. Gaß, R. C. Vidal, T. R. F. Peixoto, D. Pohl, C. Damm, A. Lubk, R. Hentrich, S. K. Moser, C. Fornari, C. Hee Min, S. Schatz, K. Kißner, M. Ünzelmann, M. Kaiser, F. Scaravaggi, B. Rellinghaus, K. Nielsch, C. Heß, B. Büchner, F. Reinert, H. Bentmann, O. Oeckler, T. Doert, M. Ruck, A. Isaeva, Chemical Aspects of the Candidate Antiferromagnetic Topological Insulator MnBi2Te4, Chem. Mater. 31, 2795 (2019) (arXiv)
Further Research
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R. Albrecht, J. Hunger, Th. Doert, M. Ruck,Syntheses, crystal structures and physical properties of chromium and rhodium hydrogarnets A3[M(OH)6]2 (A = Ca, Sr; M = Cr, Rh), Eur. J. Inorg. Chem. 2019, 1398-1405
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H. Poddig, J. Hunger, S. Kamusella, H.-H. Klauss, A. U. B. Wolter, G. Bastien, L. T. Corredor Bohórquez, Th. Doert, Hydrothermal synthesis, crystal structure determination and magnetic properties of a new calcium iron iridium hydrogarnet Ca3(Ir2–xFex)(FeO4)2–x(O4H4)1+x with 0 ≤ x ≤ 1, Z. Anorg. Allg. Chem. 645, 631-637 (2019)
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D. Souchay, M. Nentwig, D. Günther, S. Keilholz, J. de Boor, A. Zeugner, A. Isaeva, M. Ruck, A.U.B. Wolter, B. Büchner, O. Oeckler, Layered Manganese Bismuth Tellurides with GeBi4Te7- and GeBi6Te10–type Structures: Towards Multifunctional Materials, J. Mater. Chem. C 7, 9939–9953 (2019)
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R. Morrow, M. I. Sturza, R. Ray, C. Himcinschi, J. Kern, P. Schlender, S. Wurmehl,
B. Büchner, M. Richter, Discovery, Crystal Growth, and Characterization of Garnet Eu2PbSb2Zn3O12, Eur. J. Inorg. Chem. 2020, 2512 (2020) -
R. Albrecht, Th. Doert, M. Ruck, The Hydrogarnets Sr3[RE(OH)6]2 (RE = Sc, Y, Ho-Lu): Syntheses, Crystal structures and their Thermal Decomposition to Ternary Rare-Earth Metal Oxides, Z. Anorg. Allg. Chem. 646, 1517–1524 (2020)
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R. Albrecht, J. Hunger, T. Doert, M. Ruck, CaNa[Cr(OH)6] – A Layered Hydroxochromate(III) with Ordered Brucite Structure and its Thermal Decomposition,
Anorg. Allg. Chem. 646, 1130–1137 (2020) -
G. S. Thakur, S. Chattopadhyay, T. Doert, T. Hermannsdörfer, C. Felser,
Crystal growth of spin-frustrated Ba4Nb0.8Ir3.2O12: A possible spin liquid material,
Cryst. Growth Des. 20, 2871 (2020) (arXiv) -
R. Albrecht, F. Graßme, Th. Doert, M. Ruck, Hydroflux syntheses and crystal structures of hydrogarnets Ba3[RE(OH)6]2 (RE = Sc, Y, Ho – Lu), Z. Naturforsch B 75, 951–957 (2020)
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M. Lê Anh, M. Kaiser, M. Ghimire, M. Richter, K. Koepernik, M. Gruschwitz, C. Tegenkamp, Th. Doert, M. Ruck, The weak 3D topological insulator Bi12Rh3Sn3I9,
Chem. Eur. J. 26, 15549 – 15557 (2020) -
G. S. Thakur, Th. Doert, S. Mohitkar, W. Schnelle, C. Felser, M. Jansen,
Crystal growth of a new twinned 8H perovskite Sr8Os6.3O24 exhibiting high TC ferromagnetism, Cryst. Growth Des. 21, 2459–2464 (2021) (arXiv) -
R. Albrecht, H. Poddig, J. Hunger, M. Ruck, P. Benrath, A. Möller, Th. Doert,
Hydrothermal Synthesis, Crystal Structure, and Magnetism of Na2[Ir(OH)6] and its Dehydration to Na2IrO3, Z. Anorg. Allg. Chem. 647, 667-672 (2021) -
P. Gebauer, H. Poddig, L. T. Corredor-Bohorquez, T. Menshchikova, I. Rusinov, P. Golub, F. Caglieris, C. Benndorf, T. Lindemann, E. S. Tchoulkov A. U. B. Wolter, B. Buechner, Th. Doert, A. Isaeva, Heavy-atom antiferromagnet GdBiTe: interplay of magnetism and topology in a symmetry-protected semimetal, Chem. Mater. 33, 2420-2435 (2021)
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D.C. Peets, M. Avdeev, M.C. Rahn, F. Pabst, S. Granovsky, M. Stötzer, D.S. Inosov,
Crystal Growth, Structure, and Noninteracting Quantum Spins in Cyanochroite, K₂Cu(SO₄)₂·6H₂O, ACS Omega 7, 5139-5145 (2022)