Coupled Nd and B' spin ordering in the double perovskites Nd2NaB'O6 (B' = Ru, Os)

Journal Article · Tue Jan 01 00:00:00 EST 2013 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.88.014413· OSTI ID:1092278

Aczel, Adam A ^[1]; Bugaris, Dan ^[2]; Yeon, Jeongho ^[3]; Dela Cruz, Clarina R ^[1]; Zur Loye, Hans-Conrad ^[2]; Nagler, Stephen E ^[1]

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1. ORNL
2. University of South Carolina
3. University of South Carolina, Columbia

We present a neutron powder diffraction study of the monoclinic double perovskite systems Nd$$_2$$NaB$$'$$O$$_6$$ (B$$'$$~$$=$$~Ru, Os), with magnetic atoms occupying both the A and B$$'$$ sites. Our measurements reveal coupled spin ordering between the Nd and B$$'$$ atoms with magnetic transition temperatures of 14~K for Nd$$_2$$NaRuO$$_6$$ and 16~K for Nd$$_2$$NaOsO$$_6$$. There is a Type I antiferromagnetic structure associated with the Ru and Os sublattices, with the ferromagnetic planes stacked along the c-axis and [110] direction respectively, while the Nd sublattices exhibit complex, canted antiferromagnetism with different spin arrangements in each system.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1092278
• Journal Information: Physical Review B, Vol. 88, Issue 1; ISSN 1098--0121
• Country of Publication: United States
• Language: English

Related Subjects

magnetism
double perovskites