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| Content Provider | EDP Sciences |
|---|---|
| Author | Huiting Yu Shengli Liu Bin Li Haiyun Wang Jie Cheng Z. H. Wang |
| Abstract | A series of polycrystalline samples of Sr2Ir1−xO4 has been synthesized by the solid-state reaction method. The evolution of the structure and the physical properties are studied with increasing Ir vacancies. Ir vacancies induce a significant structural change, especially the decrease of the Ir-O-Ir bond angle. This, together with the increasing disorder causes the increasing of resistivity. The sharp decrease of the total moment is attributed to the reduced number of magnetic Ir4+ ions and the weakened exchange interactions resulting from the diluted Ir4+ ions. The enhancement moment at lower temperature is probably due to the long-way exchange interactions of diluted Ir4+ spins via Ir5+ ions. The suppression of the antiferromagnetic transition contrasting to the enhancement of the insulating state may suggest that magnetic order is not the origin of the gap opening in the Sr2IrO4 system. |
| Page Count | 6 |
| File Format | HTM / HTML PDF |
| ISSN | 02955075 |
| e-ISSN | 12864854 |
| Issue Number | 2 |
| Journal | EPL |
| Volume Number | 120 |
| DOI | 10.1209/0295-5075/120/27007 |
| Alternate Webpage(s) | https://articles/epl/abs/2017/20/epl18878/epl18878.html |
| Language | English |
| Publisher | EDP Sciences, IOP Publishing and Società Italiana di Fisica |
| Publisher Date | 2017-10-01 |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | © EPLA, 2018 |
| Subject Keyword | Strongly correlated electron systems; heavy fermions Transition-metal compounds Effects of crystal defects, doping and substitution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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