Doping effects on the relaxation of frustration and magnetic properties of YMn0.9Cu0.1O3
| Autor: | G.L. Xiao, Xiaoping Wang, Zhao Jin, Zefeng Xia, L.X. Xiao, L.R. Shi, Yun Ni, W. Yu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Ionic radius
Materials science Condensed matter physics media_common.quotation_subject Relaxation (NMR) Frustration 02 engineering and technology Crystal structure 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Magnetization Lattice constant Condensed Matter::Superconductivity 0103 physical sciences Antiferromagnetism Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology Single crystal media_common |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 444:206-210 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2017.08.030 |
| Popis: | The crystal structure and magnetic properties of hexagonal YMn0.9Cu0.1O3 single crystal are systematically investigated. The refinement results of XRD show the lattice constant decreases, which is unusually due to the doped Cu2+ ion has a larger ionic radius than the Mn3+ ions. The XPS results show that the coexistence of Mn2+, Mn3+ and Mn4+ ions in YMn0.9Cu0.1O3 single crystal. Magnetization measurements show that Cu doped YMn0.9Cu0.1O3 and parent YMnO3 have almost the same antiferromagnetic transition temperature TN, which indicates the AFM interaction is robust in the geometry frustrated system. Because doping directly destroy some of the Mn3+ ions nets, the relaxation of frustration of Mn in-plane 2D triangular geometry network leads to the significantly decrease of Mn3+ ions AFM interaction. In addition, the coexistence and competition between the ferromagnetic and antiferromagnetic interactions among the Mn2+, Mn3+ and Mn4+ ions lead to a complicated and irreversible magnetization behavior in YMn0.9Cu0.1O3 single crystal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect