Multiferroicity in an organic charge-transfer salt that is suggestive of electric-dipole-driven magnetism

Nature Materials

Volumn 11, Issue 9, 2012, Pages 755-758

  Lunkenheimer, Peter ^a   Müller, Jens ^b   Krohns, Stephan ^a   Schrettle, Florian ^a   Loidl, Alois ^a   Hartmann, Benedikt ^b   Rommel, Robert ^b   De Souza, Mariano ^b,e   Hotta, Chisa ^c   Schlueter, John A ^d   Lang, Michael ^b  

^a UNIVERSITY OF AUGSBURG   (Germany)

^b GOETHE UNIVERSITY   (Germany)

^c KYOTO SANGYO UNIVERSITY   (Japan)

^d ARGONNE NATIONAL LABORATORY   (United States)

^e SÃO PAULO STATE UNIVERSITY UNESP   (Brazil)

Author keywords

[No Author keywords available]

Indexed keywords

ANTIFERROMAGNETIC MATERIALS; ANTIFERROMAGNETISM; CHARGE TRANSFER; DEGREES OF FREEDOM (MECHANICS); FERROELECTRIC MATERIALS;

ANTIFERROMAGNETIC SPIN ORDERING; DIFFERENT MECHANISMS; ELECTRICAL DIPOLES; ELECTRONIC FERROELECTRICITIES; FERROELECTRIC ORDER; INVERSION SYMMETRY; SPIN FRUSTRATIONS; TWO-DIMENSIONAL ORGANIC CHARGE TRANSFER SALTS;

FERROELECTRICITY;

EID: 84866396581     PISSN: 14761122     EISSN: 14764660     Source Type: Journal    
DOI: 10.1038/nmat3400     Document Type: Article

References (30)

1. Fiebig, M. Revival of the magnetoelectric effect. J. Phys.D 38, R123-R152 (2005).
2. Cheong, S-W. & Mostovoy, M. Multiferroics: A magnetic twist for ferroelectricity. Nature Mater. 6, 13-20 (2007).
3. Sergienko, I. A. & Dagotto, E. Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites. Phys. Rev. B 73, 094434 (2006).
4. Katsura, H., Nagaosa, N. & Balatsky, A. V. Spin current and magnetoelectric effect in noncollinear magnets. Phys. Rev. Lett. 95, 057205 (2005).
5. Mostovoy, M. Ferroelectricity in spiral magnets. Phys. Rev. Lett. 96, 067601 (2006).
6. Van den Brink, J. & Khomskii, D. I. Multiferroicity due to charge ordering. J. Phys. Condens. Matter 20, 434217 (2008).
7. Kanoda, K. in The Physics of Organic Superconductors and Conductors (ed. Lebed, A.) Ch. 22, 623-642 (Springer, 2008).
8. Toyota, N., Lang, M. & Müller, J. Low-Dimensional Molecular Metals (Springer, 2007).
9. Abdel-Jawad, M. et al. Anomalous dielectric response in the dimer Mott insulator-(BEDT-TTF)2Cu2(CN)3. Phys. Rev. B 82, 125119 (2010).
10. Hotta, C. Quantum electric dipoles in spin-liquid dimer Mott insulator-(ET)2Cu2(CN)3. Phys. Rev. B 82, (R)241104 (2010).
11. Li, H., Clay, R. T. & Mazumdar, S. The paired-electron crystal in the two-dimensional frustrated quarter-filled band. J. Phys. Condens. Matter 22, 272201 (2010).
12. Miyagawa, K., Kawamoto, A., Nakazawa, Y. & Kanoda, K. Antiferromagnetic ordering and spin structure in the organic conductor,-(BEDT-TTF)2CuTN(CN)2UCl. Phys. Rev. Lett. 75, 1174-1177 (1995).
13. Smith, D. F. et al. Dzialoshinskii-Moriya interaction in the organic superconductor-(BEDT-TTF)2CuTN(CN)2UCl. Phys. Rev. B 68, 024512 (2003).
14. Wang, H. H. et al. New-phase materials,-(ET)2CuTN(CN)2UX, XDCl, Br and I-The synthesis, structure and superconductivity above 11 K in the Cl (Tc D 12:8 K, 0.3 kbar) and Br (Tc D 11:6 K) salts. Synth. Met. 42, 1983-1990 (1991).
15. Williams, J. M. et al. From semiconductor-semiconductor transition (42 K) to the highest-Tc organic superconductor,-(ET)2CuTN(CN)2UCl (Tc D12:5K). Inorg. Chem. 29, 3272-3274 (1990).
16. Dressel, M. et al. Studies of the microwave resistivity of-(BEDTTTF)2CuTN(CN)2UCl. Synth. Met. 70, 927-928 (1995).
17. Lines, M. E. & Glass, A. M. Principles and Application of Ferroelectrics and Related Materials (Clarendon, 1977).
18. Nad, F. & Monceau, P. Dielectric response of the charge ordered state in quasi-one-dimensional organic conductors. J. Phys. Soc. Jpn 75, 051005 (2006).
19. Stare²ini, D., Biljakovi, K., Lunkenheimer, P. & Loidl, A. Slowing down of the relaxational dynamics at the ferroelectric phase transition in one-dimensional (TMTTF)2AsF6. Solid State Commun. 137, 241-245 (2006).
20. Pinter, M. et al. Magnetic anisotropy and low-frequency dielectric response of weak ferromagnetic phase in-(BEDTTTF)2CuTN(CN)2UCl, where BEDT-TTF is Bis(ethylenedithio)tetrathiafulvalene. Eur. Phys. J. B 11, 217-225 (1999).
21. Kagawa, F., Horiuchi, S., Tokunaga, M., Fujioka, J. & Tokura, Y. Ferroelectricity in a one-dimensional organic quantum magnet. Nature Phys. 6, 169-172 (2010).
22. Schrettle, F., Krohns, S., Lunkenheimer, P., Brabers, V. A. M. & Loidl, A. Relaxor ferroelectricity and the freezing of short-range polar order in magnetite. Phys. Rev. B 83, 195109 (2011).
23. Joos, Ch. et al. Polaron melting and ordering as key mechanisms for colossal resistance effects in manganites. Proc. Natl Acad. Sci. USA 104, 13597-13602 (2007).
24. Schrettle, F. et al. Switching the ferroelectric polarization by external magnetic fields in the spinD1=2 chain cuprate LiCuVO4. Phys. Rev. B 77, 144101 (2008).
25. Naka, M. & Ishihara, S. Electronic ferroelectricity in a dimer Mott insulator. J. Phys. Soc. Jpn 79, 063707 (2010).
26. Yamamoto, K. et al. Strong optical nonlinearity and its ultrafast response associated with electron ferroelectricity in an organic conductor. J. Soc. Phys. Jpn 77, 074709 (2008).
27. Lunkenheimer, P. et al. Colossal dielectric constants in transition-metal oxides. Eur. Phys. J. Spec. Top. 180, 61-89 (2010).
28. Takahide, Y. et al. Highly nonlinear current-voltage characteristics of the organic Mott insulator-(BEDTTTF)2CuTN(CN)2UCl. Phys. Rev. B 84, 035129 (2011).
29. Shimizu, Y., Miyagawa, K., Kanoda, K., Maesato, M. & Saito, G. Spin liquid state in an organic Mott insulator with a triangular lattice. Phys. Rev. Lett. 91, 107001 (2003).
30. Wang, H. H. et al. Phase selectivity in the simultaneous synthesis of the Tc D 12:8 K (0.3 kbar) organic superconductor-(BEDTTTF)2CuTN(CN)2UCl or the semiconductor (BEDT-TTF) CuTN(CN)2U2. Chem. Mater. 4, 247-249 (1992).