Abstract
A new microporous polyborate, NaCuB7O12.nH 2O, is synthesized using boric acid as a flux. It contains a 14-membered ring framework built up by CuO6 octahedra, BO4 tetrahedra and BO3 triangles. The spin-1/2 dimers of Cu2+ ions are connected by BO3 to form an infinite ladder along the b-axis. Magnetic susceptibility data between 2 and 330 K are presented, and the data are accurately fitted by theoretical predictions of Bleaney-Bowers for the spin-1/2 dimer, with J/kB = -153.8 K, and g = 1.98, where J is the intradimer exchange interaction constant and g is the Landé g factor.
| Original language | English |
|---|---|
| Pages (from-to) | 15-19 |
| Number of pages | 5 |
| Journal | Materials Research Society Symposium Proceedings |
| Volume | 1032 |
| Publication status | Published - 2008 Dec 1 |
| Event | Nanoscale Magnetic Materials and Applications - Boston, MA, United States Duration: 2007 Nov 26 → 2007 Nov 30 |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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Ju, J., Sasaki, J., Toyota, N., & Tanigaki, K. (2008). Novel spin-dimer system of a microporous polyborate NaCuB7O 12.nH2O. Materials Research Society Symposium Proceedings, 1032, 15-19.