Abstract
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.
| Original language | English |
|---|---|
| Article number | 024402 |
| Journal | Physical Review B |
| Volume | 109 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 1 2024 |
Funding
We thank Z. Z. He for helpful discussions. This work was supported by the National Key R&D Program of China (2022YFA1403202), Key Program of National Natural Science Foundation of China (Grant No. 12234006), and the Shanghai Municipal Science and Technology Major Project (Grant No. 2019SHZDZX01). This research used resources at the High Flux Isotope Reactor and Spallation Neutron Source, DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory.
| Funders | Funder number |
|---|---|
| National Natural Science Foundation of China | 12234006 |
| Science and Technology Commission of Shanghai Municipality | 2019SHZDZX01 |
| National Key Research and Development Program of China | 2022YFA1403202 |