Abstract
We report the results of specific heat measurements in a magnetic field on single crystal samples of the S = 1 quasi-1D bond alternating antiferromagnet Ni(C9H24N4)NO2(ClO4). The compound has the singlet ground state with an excitation energy gap and the gap closes by application of magnetic field (Hc). We observed a sharp peak corresponding to the long-range ordering above Hc both parallel and perpendicular to the chain at low temperatures. The temperature-magnetic field phase diagram is discussed in comparison with those of the Haldane system Ni(C5H14N2) 2N3(PF6).
| Original language | English |
|---|---|
| Pages (from-to) | 1209-1210 |
| Number of pages | 2 |
| Journal | Physica B: Condensed Matter |
| Volume | 329-333 |
| Issue number | II |
| DOIs | |
| Publication status | Published - May 2003 |
| Externally published | Yes |
Keywords
- Bond alternating antiferromagnet
- Long-range-ordering
- Specific heat
- Temperature-magnetic field phase diagram
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
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Cite this
Tateiwa, N., Hagiwara, M., Aruga-Katori, H., & Kobayashi, T. C. (2003). Specific heat of an S = 1 quasi-1D bond alternating antiferromagnet in a magnetic field. Physica B: Condensed Matter, 329-333(II), 1209-1210. https://doi.org/10.1016/S0921-4526(02)02130-0