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YCr6Ge6 as a Candidate Compound for a Kagome Metal
Yui Ishii, Hisatomo Harima, Yoshihiko Okamoto +2
We show that YCr6Ge6, comprising a kagome lattice made up of Cr atoms, is a plausible candidate compound for a kagome metal that is expected to exhibit anomalous phenomena such as…
A novel crystal polymorph of volborthite, Cu3V2O7(OH)2 2H2O
Hajime Ishikawa, Jun-ichi Yamaura, Yoshihiko Okamoto +3
A new polymorph of volborthite [tricopper(II) divanadium(V) heptaoxide dihydroxide dihydrate], Cu3V2O7(OH)2 2H2O, has been discovered in a single crystal prepared by hydrothermal s…
Crystal Chemistry and Magnetic Properties of Manganese Zinc Alloy "YMn2Zn20" Comprising a Mn Pyrochlore Lattice
Yoshihiko Okamoto, Takeshi Shimizu, Jun-ichi Yamaura +1
The chemical composition, crystal structure, and magnetic properties of a manganese zinc alloy with an ideal composition of YMn2Zn20, which comprises a pyrochlore lattice made of M…
Distorted Kagome Lattice Generated by a Unique Orbital Arrangement in the Copper Mineral KCu3As2O7(OH)3
Yoshihiko Okamoto, Hajime Ishikawa, Gøran J. Nilsen +1
We study polycrystalline samples of KCu3As2O7(OH)3, a new candidate spin-1/2 kagome antiferromagnet, by magnetic susceptibility and heat capacity measurements above 2 K. The unique…