Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1596279 | Solid State Communications | 2007 | 4 Pages |
Abstract
Results of synthesis, X-ray structure analysis, electron spin resonance, susceptibility, magnetization and specific heat measurements of powdered Cu(bmen)2Pd(CN)4 (bmen=N,Nâ²-dimethyl-1,2-diaminoethane) are reported. Its structure is formed of quasi-linear chains of the [-Cu(bmen)2-NC-Ni(CN)2-CN-]n composition; these are interlinked by hydrogen bonds (HBs) leading to two-dimensional patterns. Upon magnetic, spectral and thermodynamic measurements the compound was identified as an S=1/2 Heisenberg antiferromagnet on a square lattice with J/k=â0.48K due to the dominant role of HBs in creating a square network. The long-range ordering observed at 0.24 K is proposed to be of a Néel type. The possibility of tuning the exchange interactions in various directions is considered.
Keywords
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
J. Hanko, M. OrendáÄ, J. Kuchár, Z. Žák, J. Äernák, A. OrendáÄová, A. Feher,