Details

Autor(en) / Beteiligte

• Deng, Zheng
• Retuerto, Maria
• Liu, Sizhan
• Croft, Mark
• Stephens, Peter W.
• Calder, Stuart
• Li, Wenmin
• Chen, Bijuan
• Jin, Changqing
• Hu, Zhiwei
• Li, Man-Rong
• Lin, Hong-Ji
• Chan, Ting-Shan
• Chen, Chien-Te
• Kim, Sun Woo
• Greenblatt, Martha

Titel

Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y2CoRuO6

Ist Teil von

• Chemistry of materials, 2018-09, Vol.30 (20)

Ort / Verlag

United States: American Chemical Society (ACS)

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Y2CoRuO6 was synthesized as a B-site ordered double perovskite with distorted monoclinic P21/n symmetry and an average tilting of the CoO6 and RuO6 octahedra of $\bar{ψ}$= 19.7°. DC magnetization measurements show a ferrimagnetic transition at around 82 K. Although long-range ferrimagntic order is supported by neutron diffraction studies, aging phenomena in time-dependent isothermal magnetization, frequency dependence of AC susceptibility, and a smeared peak in the specific heat together reveal spin glass-like dynamics. The magnetic subtleties resemble chaotic behavior as previously observed in some ferro- or ferrimagnetic materials that exhibit spin glass-like dynamics. It is argued that the magnetic dynamics in Y2CoRuO6 mainly stem from competition between antiferromagnetic Co↑-O-(Ru)-O-Co↓/Ru↑-O-(Co)-O-Ru↓ and antiferromagnetic Co↑-O-Ru↓ interactions, besides a degree of Co:Ru antisite disorder. Herein, the B-site ordered Y2CoRuO6 offers a model to explore the intriguing dynamics in correlated 3d–4d transition metal double perovskites.