TY - JOUR
T1 - Crystal growth, crystal structure and anisotropic magnetic properties of KBaR(BO3)2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) triangular lattice materials
AU - Guo, Shu
AU - Kong, Tai
AU - Cevallos, F. Alex
AU - Stolze, Karoline
AU - Cava, R. J.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/2/15
Y1 - 2019/2/15
N2 - Crystals of the KBaR(BO3)2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) rare earth borates were grown by spontaneous nucleation from a KF-B2O3 flux. The crystals obtained were typically well-developed hexagonal plates about 1 mm in large dimension. The crystals were used to study the anisotropic temperature and field dependent magnetization of the materials, which are based on ideal triangular planes of magnetic rare earths. All structures were refined in space group R3-m by single-crystal X-ray diffraction, and in addition to the equilateral triangular rare earth plane lattice, displayed K/Ba site occupancy disorder. All magnetic compounds reveal dominantly antiferromagnetic spin interactions with no magnetic ordering above 1.8 K. With the exception of KBaGd(BO3)2, magnetic anisotropy was observed for other five magnetic members of the family. The results suggest that KBaR(BO3)2 crystals may be of further interest for investigating the magnetic properties of rare earth ions on a triangular lattice.
AB - Crystals of the KBaR(BO3)2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) rare earth borates were grown by spontaneous nucleation from a KF-B2O3 flux. The crystals obtained were typically well-developed hexagonal plates about 1 mm in large dimension. The crystals were used to study the anisotropic temperature and field dependent magnetization of the materials, which are based on ideal triangular planes of magnetic rare earths. All structures were refined in space group R3-m by single-crystal X-ray diffraction, and in addition to the equilateral triangular rare earth plane lattice, displayed K/Ba site occupancy disorder. All magnetic compounds reveal dominantly antiferromagnetic spin interactions with no magnetic ordering above 1.8 K. With the exception of KBaGd(BO3)2, magnetic anisotropy was observed for other five magnetic members of the family. The results suggest that KBaR(BO3)2 crystals may be of further interest for investigating the magnetic properties of rare earth ions on a triangular lattice.
KW - Flux crystal growth
KW - Geometric magnetic frustration
KW - Rare earth borate
UR - http://www.scopus.com/inward/record.url?scp=85054667166&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85054667166&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2018.10.037
DO - 10.1016/j.jmmm.2018.10.037
M3 - Article
AN - SCOPUS:85054667166
SN - 0304-8853
VL - 472
SP - 104
EP - 110
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
ER -