Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y2CoRuO6
- Rutgers Univ., Piscataway, NJ (United States); Chinese Academy of Sciences (CAS), Beijing (China)
- Consejo Superior de Investigaciones Cientificas (CSIC), Madrid (Spain). Instituto de Catálisis y Petroleoquímica
- New Jersey Inst. of Technology, Newark, NJ (United States)
- Rutgers Univ., Piscataway, NJ (United States)
- State Univ. of New York (SUNY), Stony Brook, NY (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Chinese Academy of Sciences (CAS), Beijing (China)
- Max Planck Society, Dresden (Germany). Max Planck Inst. for Chemical Physics of Solids
- National Synchrotron Radiation Research Center, Hsinchu (Taiwan)
- Rutgers Univ., Piscataway, NJ (United States); Chosun Univ., Qwangji (South Korea)
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1486928
- Journal Information:
- Chemistry of Materials, Vol. 30, Issue 20; ISSN 0897-4756
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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