TY - JOUR
T1 - Anomalous Ferromagnetic Behavior in Orthorhombic Li3Co2SbO6
AU - Duan, Qianhui
AU - Bu, Huanpeng
AU - Pomjakushin, Vladimir
AU - Luetkens, Hubertus
AU - Li, Yuke
AU - Zhao, Jinkui
AU - Gardner, Jason S.
AU - Guo, Hanjie
N1 - Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/7/18
Y1 - 2022/7/18
N2 - Monoclinic Li3Co2SbO6 has been proposed as a Kitaev spin liquid candidate and investigated intensively, whereas the properties of its polymorph, the orthorhombic phase, are less known. Here we report the magnetic properties of orthorhombic Li3Co2SbO6 as revealed by dc and ac magnetic susceptibility, muon spin relaxation (μSR), and neutron diffraction measurements. Successive magnetic transitions at 115, 89, and 71 K were observed in the low-field dc susceptibility measurements. The transitions below TN (115 K) are suppressed at higher applied fields. However, zero-field ac susceptibility measurements reveal distinct frequency-independent transitions at about 114, 107, 97, 79, and 71 K. A long-range magnetic ordered state was confirmed by specific heat, μSR, and neutron diffraction measurements, all indicating a single transition at about 115 K. The discrepancy between different measurements is attributed to possible stacking faults and/or local disorders of the ferromagnetic zigzag chains, resulting in ferromagnetic boundaries within the overall antiferromagnetic matrix.
AB - Monoclinic Li3Co2SbO6 has been proposed as a Kitaev spin liquid candidate and investigated intensively, whereas the properties of its polymorph, the orthorhombic phase, are less known. Here we report the magnetic properties of orthorhombic Li3Co2SbO6 as revealed by dc and ac magnetic susceptibility, muon spin relaxation (μSR), and neutron diffraction measurements. Successive magnetic transitions at 115, 89, and 71 K were observed in the low-field dc susceptibility measurements. The transitions below TN (115 K) are suppressed at higher applied fields. However, zero-field ac susceptibility measurements reveal distinct frequency-independent transitions at about 114, 107, 97, 79, and 71 K. A long-range magnetic ordered state was confirmed by specific heat, μSR, and neutron diffraction measurements, all indicating a single transition at about 115 K. The discrepancy between different measurements is attributed to possible stacking faults and/or local disorders of the ferromagnetic zigzag chains, resulting in ferromagnetic boundaries within the overall antiferromagnetic matrix.
UR - http://www.scopus.com/inward/record.url?scp=85134632022&partnerID=8YFLogxK
U2 - 10.1021/acs.inorgchem.2c01293
DO - 10.1021/acs.inorgchem.2c01293
M3 - Article
C2 - 35792577
AN - SCOPUS:85134632022
SN - 0020-1669
VL - 61
SP - 10880
EP - 10887
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 28
ER -