| Title | Crystal structure and magnetic properties of DyCuxGa2-x (x=0-2.0) antiferromagnetic compounds |
| Authors | Xia, Yuanhua Du, Honglin Xu, Jianhui Zhang, Yan Wang, Changsheng Yang, Jinbo Han, Xiangzhen Sun, Kai |
| Affiliation | Peking Univ, Sch Phys, Beijing 100871, Peoples R China. China Inst Atom Energy, Beijing 102413, Peoples R China. |
| Keywords | Crystal structure Magnetic property Antiferromagnetic compounds Magnetic phase transition EARTH GALLIUM COMPOUNDS RARE-EARTH RGA2 TM HO DY ER |
| Issue Date | 2012 |
| Publisher | journal of alloys and compounds |
| Citation | JOURNAL OF ALLOYS AND COMPOUNDS.2012,512,(1),212-215. |
| Abstract | DyCuxGa2-x (x = 0-2.0) compounds have been synthesized; meanwhile, their crystal structure and magnetic properties have been investigated by X-ray diffraction and magnetic measurements. The result shows that the continuous solid-solution series crystallize in three phases, with the structure types of AlB2 (x = 0-0.2), DyCuGe (x = 0.3-0.6) and CeCu2 (x = 0.7-2.0), respectively. The main reason to form the three structure types is considered to be the average atomic radius ratio of R to Cu/Ga. Magnetic-ordering transition of the compounds with x = 0.2-0.6 takes place at about 20 K and 113 K, while those of other compounds only takes place at about 20 K, which is attributed to the change of the near Dy-Dy distances and the ordered substitution of Ga by Cu. (C) 2011 Elsevier B.V. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/148456 |
| ISSN | 0925-8388 |
| DOI | 10.1016/j.jallcom.2011.09.065 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 物理学院 |
