91 citations · 473 across the 25 of their papers we have counts for
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Structural and Electronic Properties of a Triangular Lattice Magnet NaPrTe Compared with NaNdTe and NaTbTe
Koki Eto, Yoshihiko Okamoto, Naoyuki Katayama +3
NaPrTe2, NaNdTe2, and NaTbTe2 are found to be triangular lattice magnets with the alpha-NaFeO2 structure, where lanthanoid atoms with 4f electrons form a triangular lattice, based…
Breathing pyrochlore magnet CuGaCrS: Magnetic, thermodynamic, and dielectric properties
M. Gen, H. Ishikawa, A. Miyake +11
We investigate the crystallographic and magnetic properties of a chromium-based thiospinel CuGaCrS. From a synchrotron x-ray diffraction experiment and structural refin…
Signatures of a magnetic superstructure phase induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet
M. Gen, A. Ikeda, K. Aoyama +11
The mutual coupling of spin and lattice degrees of freedom is ubiquitous in magnetic materials and potentially creates exotic magnetic states in response to the external magnetic f…
Magnetostriction studies up to megagauss fields using fiber Bragg grating technique
Akihiko Ikeda, Yasuhiro H. Matsuda, Daisuke Nakamura +13
We here report magnetostriction measurements under pulsed megagauss fields using a high-speed 100 MHz strain monitoring system devised using fiber Bragg grating (FBG) technique wit…
Kagome-Triangular Lattice Antiferromagnet NaBa2Mn3F11
Hajime Ishikawa, Tsuyoshi Okubo, Yoshihiko Okamoto +1
A new type of magnetically frustrated lattice is found in the layered fluoride NaBa2Mn3F11. A kagome-type array of regular triangles composed of Mn2+ ions (spin 5/2) deforms so as…
Magnetic Properties of the Spin-1/2 Deformed Kagome Antiferromagnet Edwardsite
Hajime Ishikawa, Yoshihiko Okamoto, Zenji Hiroi
We prepared a powder sample of edwardsite Cd2Cu3(SO4)2(OH)6 4H2O, which is a new candidate compound for the spin-1/2 kagome antiferromagnet, and studied its magnetic properties by…
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…
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…