Noncoplanar magnetic order in the breathing kagome lattice compound Pb(OF)Cu3(SeO3)2(NO3)
- Fudan Univ., Shanghai (China); Shanghai Qi Zhi Institute (China)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Fudan Univ., Shanghai (China); Shanghai Qi Zhi Institute (China); Shanghai Research Center for Quantum Sciences (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China)
We report a comprehensive study investigating the magnetic ordering properties of the quasi-two-dimensional breathing kagome lattice compound Pb(OF)Cu3(SeO3)2(NO3) using neutron diffraction and thermodynamic measurements. A long-range magnetic order emerges below the Néel temperature, TN = 18K, characterized by a propagating vector k = (0,0,1.5). Refinement analysis reveals that the copper moments display a noncoplanar arrangement, with the c components parallelly aligned within the breathing kagome plane and antiparallelly aligned between the layers. In-plane moment components form a chiral “tail-chase” structure. The magnetic order is quickly suppressed under moderate external fields applied both within and perpendicular to the kagome plane. Potential magnetic interactions that may be associated with the noncoplanar chiral magnetic structure are discussed.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); National Natural Science Foundation of China (NSFC); National Key R&D Program of China
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 2438833
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 2 Vol. 109; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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