^1H NMR on (Ni_xMn_{1-x})_3[Cr(CN)_6]_2 · nH_2O

• Authors: M. Bokor , K. Tompa , L. Kiss , M. Zentková , A. Zentko , M. Mihalik , S. Maťaš , Z. Mitróová
• Languages of publication: EN

Abstracts

EN

We report on ^1H NMR of (Ni_xMn_{1-x})3[Cr(CN)_6]_2·15H_2O hexacyanochromates, where x changes from 0 to 1. The decay time constants of the free induction decay signals described by an effective spin-spin relaxation time T_{2eff} obtained from M(t) = M_0 exp(t/T_{2eff}) decrease as the local magnetic moments increase produced by the magnetic transition metal ions at the sites of the resonant ^1H nuclei. The recovery of the magnetization in the spin-lattice relaxation time (T_1) experiments was single-exponential.

Keywords

EN

72.80.Ga; 75.50.Xx; 76.60.Lz

Discipline

• 76.60.Lz: Spin echoes
• 72.80.Ga: Transition-metal compounds
• 75.50.Xx: Molecular magnets

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 485-488

Dates

published

2008-01

received

2007-07-09

Contributors

author

M. Bokor

• Institute for Solid State Physics and Optics, HAS, P.O. Box 49, 1525 Budapest, Hungary

author

K. Tompa

• Institute for Solid State Physics and Optics, HAS, P.O. Box 49, 1525 Budapest, Hungary

author

L. Kiss

• Institute for Solid State Physics and Optics, HAS, P.O. Box 49, 1525 Budapest, Hungary

author

M. Zentková

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

A. Zentko

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

M. Mihalik

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

S. Maťaš

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

Z. Mitróová

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

References

• 1. M. Zentková, M. Mihalik, J. Kovač, A. Zentko, Z. Mitróova, M. Lukáčová, V. Kavčanský, L.F. Kiss, Phys. Status Solidi B 243, 272 (2006)
• 2. O. Sato, T. Iyoda, A. Fujishima, K. Hashimoto, Science 272, 704 (1996)
• 3. M. Zentková, Z. Arnold, J. Kamarád, V. Kavčanský, M. Lukáčová, S. Mat'aš, M. Mihalik, Z. Mitróová, A. Zentko, J. Phys., Condens. Matter 19, 266217 (2007)
• 4. D. Papanikolaou, W. Kosaka, S. Margadonna, H. Kagi, S. Ohkoshi, K. Prassides, J. Phys. Chem. C 111, 8086 (2007)
• 5. S. Ohkoshi, T. Iyoda, A. Fujishima, K. Hashimoto, Phys. Rev. B 56, 11642 (1997)
• 6. S. Ohkoshi, K. Arai, Y. Sato, K. Hashimoto, Nature Mater. 3, 857 (2004)
• 7. S. Takeda, Y. Umehara, H. Hara, G. Maruta, Mol. Cryst. Liq. Cryst. 379, 253 (2002)
• 8. H. Ishiyama, G. Maruta, T. Kobayashi, S. Takeda, Polyhedron 22, 1981 (2003)

Identifiers

DOI

10.12693/APhysPolA.113.485