Counterrotating magnetic order in the honeycomb layers of
Journal Article
·
· Physical Review B
- Johns Hopkins Univ., Baltimore, MD (United States)
- Colorado State Univ., Fort Collins, CO (United States); Canadian Inst. for Advanced Research (CIFAR), Toronto, ON (Canada)
- Univ. of Toronto, ON (Canada)
- Princeton Univ., NJ (United States)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)
- Univ. of Toronto, ON (Canada); Canadian Inst. for Advanced Research (CIFAR), Toronto, ON (Canada)
- Johns Hopkins Univ., Baltimore, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Johns Hopkins Univ., Baltimore, MD (United States)
In this paper we report the magnetic structure and electronic properties of the honeycomb antiferromagnet NaNi2BiO5.66. We find magnetic order with moments along the c axis for temperatures below $$T_{c1}$$ = 6.3(1)K and then in the honeycomb plane for $$T < T_{c2}$$ = 4.8(1) K with a counterrotating pattern and an ordering wave vector q = (1/3, 1/3, 0.15(1)). Density functional theory and electron spin resonance indicate this is high-spin Ni3+ magnetism near a high to low spin transition. The ordering wave vector, in-plane magnetic correlations, missing entropy, spin state, and superexchange pathways are all consistent with bond-dependent Kitaev-Γ-Heisenberg exchange interactions in NaNi2BiO6–δ .
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Institute for Quantum Matter (IQM); Johns Hopkins Univ., Baltimore, MD (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Natural Sciences and Engineering Research Council of Canada (NSERC); Canada Foundation for Innovation (CFI); Gordon and Betty Moore Foundation; National Institute of Standards and Technology (NIST); National Science Foundation (NSF)
- Grant/Contract Number:
- SC0019331; DMR-1508249
- OSTI ID:
- 1767739
- Journal Information:
- Physical Review B, Vol. 100, Issue 21; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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