Theoretical investigation of the behavior of CuSe2O5 compound in high magnetic fields
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- 作者：Z. Saghafi ; J. Jahangiri ; jahangirii@gmail.com" class="auth_mail" title="E-mail the corresponding author ; S. Mahdavifar ; H. Hadipour ; S. Farjami Shayesteh
- 关键词：Magnetic field ; Spin chain ; Thermodynamic behavior ; DM interaction
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：398
- 期：Complete
- 页码：183-189
- 全文大小：569 K
文摘
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We investigate thermodynamic properties of CuSe2O5 at high magnetic fields.
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The behavior of CuSe2O5 above Neel temperature (TN) is like spin chains.
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This compound above TN is described by1D spin-1/2 XXZ Heisenberg model.
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There is one quantum critical field in this compound at Hc=2300 K Oe.
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Indications on thermodynamic curves confirm the event of such a phase transition.
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Wilson ratio (Rw) at fixed temperature remains almost constant in the LL phase.
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Rw exhibits anomalous enhancement near the quantum critical field.