Photoluminescence and magnetic properties of CdPS₃ intercalated with rare earth ions

详细信息	查看全文 | 推荐本文 |

• 作者：Masayuki Aoike ; Toshihiro Masubuchi ; Eisuke Gonmori ; Yoji Kubota ; Tadataka Watanabe ; Yumiko Takahashi ; Kouichi Takase ; Yoshiki Takano
• 关键词：Rare earth ; Luminescence ; Magnetization ; Layered compound
• 刊名：Journal of Alloys and Compounds
• 出版年：2008
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：28 February 2008
• 卷：451
• 期：1-2
• 页码：470-472
• 文件大小：345 K

摘要

We have investigated the photoluminescence (PL) and the magnetic properties of CdPS₃ intercalated with Ce and Eu ions. Two kinds of the intercalated phases are obtained. In the first phases (P_Ce and P_Eu), the hydrated rare earth ions exist in the van der Waals gap. The second phases (D_Ce and D_Eu) are obtained by the dehydration of P_Ce and P_Eu. Rare earth ions are inserted into the lamellar layers in them. All phases are paramagnetic. While the magnetic properties of P_Ce, P_Eu and D_Ce are explained by Ce³⁺ and Eu³⁺ ions, respectively, those of D_Eu suggest the coexistence of Eu²⁺ and Eu³⁺ ions. In the PL spectra at 4.2 K, while 4f → 5d transition of Ce³⁺ ions is observed in D_Ce, 4f → 4f transition of Eu³⁺ ions and 4f → 5d transition of Eu²⁺ ions are observed in D_Eu. These are consistent with the magnetic properties.