期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2025-03-01 |
| 作品名稱 | Experimental and theoretical evidence of weak spin-lattice coupling in the double perovskite Sr2YRuO6 |
| 作品名稱（其他語言） | |
| 著者 | Hsiang-Lin Liu; Bommareddy Poojitha; Yi-Lin Lin; Hsiao-Wen Chen; Chao-Hung Du; Ting-Hua Lu; Supratik Mukherjee; A. C. Garcia-Castro; Ganapathy Vaitheeswaran |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of Raman Spectroscopy 56(3), p.286-296 |
| 摘要 | Sr2YRuO6 is a material that provides an ideal platform for studying magnetic frustration in three-dimensional geometries. Herein, we combine Raman spectroscopy and density functional theory calculations to establish connections between the lattice dynamics and magnetic states in Sr2YRuO6 single crystals. The x-ray diffraction profiles reveal that Sr2YRuO6 possesses an ordered double-perovskite structure with distorted monoclinic symmetry. Three magnetic phase transitions are observed and linked to the presence of weak ferromagnetism at 135 K and short- and long-range antiferromagnetic orderings at 32 and 26 K. The oxygen-octahedron antistretching and stretching modes, observed at 570 and 766 cm−1, exhibit anomalies near the magnetic phase transition temperatures, indicating an intriguing interplay between the lattice and spin degrees of freedom. Their spin–phonon coupling constants of 0.7 cm−1 reflect the weak spin–lattice interactions in Sr2YRuO6. |
| 關鍵字 | density functional theory calculation; magnetic phase transition; polarized Raman spectroscopy; spin–phonon coupling; Sr2YRuO6 single crystal |
| 語言 | en |
| ISSN | 0377-0486; 1097-4555 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129501 ) |