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Title: Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y2CoRuO6

Journal Article · · Chemistry of Materials
 [1];  [2];  [3];  [4]; ORCiD logo [5];  [6];  [7];  [7];  [7];  [8]; ORCiD logo [1];  [9];  [9];  [9];  [10]; ORCiD logo [4]
  1. Rutgers Univ., Piscataway, NJ (United States); Chinese Academy of Sciences (CAS), Beijing (China)
  2. Consejo Superior de Investigaciones Cientificas (CSIC), Madrid (Spain). Instituto de Catálisis y Petroleoquímica
  3. New Jersey Inst. of Technology, Newark, NJ (United States)
  4. Rutgers Univ., Piscataway, NJ (United States)
  5. State Univ. of New York (SUNY), Stony Brook, NY (United States)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  7. Chinese Academy of Sciences (CAS), Beijing (China)
  8. Max Planck Society, Dresden (Germany). Max Planck Inst. for Chemical Physics of Solids
  9. National Synchrotron Radiation Research Center, Hsinchu (Taiwan)
  10. 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
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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Figures / Tables (7)