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Title: Crystal structure and magnetic properties of the breathing kagome ising antiferromagnet Yb3Ni11Ge4.63
Authors: Takahashi, M
Nawa, K
Okuyama, D
Nojiri, H
Frontzek, MD
Avdeev, M
Yoshida, M
Ueta, D
Yoshizawa, H
Sato, TJ
Keywords: Crystal structure
Magnetic properties
Intermetallic compounds
Ytterbium alloys
Germanium alloys
Nickel alloys
Specific heat
Ising model
Issue Date: 31-Jul-2020
Publisher: The Physical Society of Japan
Citation: Takahashi, M., Nawa, K., Okuyama, D., Nojiri, H., Frontzek, M. D., Avdeev, M., Yoshida, M., Ueta, D., Yoshizawa, H., & Sato, T. J. (2020). Crystal structure and magnetic properties of the breathing kagome ising antiferromagnet Yb3Ni11Ge4.63. Journal of the Physical Society of Japan, 89(9), 094704. doi:10.7566/JPSJ.89.094704
Abstract: We have investigated magnetic properties of the rare-earth based intermetallic compound Yb3Ni11Ge4.63 (YNG), where Yb3+ ions form a breathing-kagome lattice. Single-site 4f electron wavefunctions of the ground-state doublet are deduced from magnetization and heat capacity measurements. The Weiss temperatures are quite anisotropic as Θa = −0.01(2) K (H ∥ a) and Θc = −0.67(2) K (H ∥ c), indicating Ising-like spin–spin interactions dominating in this compound. Low-temperature neutron diffraction confirms absence of magnetic Bragg peaks down to 0.05 K, whereas enhancement of broad peaks below 0.8 K was observed, a signature of short-range spin correlations. Competing interactions on the breathing-kagome lattice would suppress a magnetic long-range order in YNG. ©2020 The Physical Society of Japan
ISSN: 0031-9015
Appears in Collections:Journal Articles

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