Study of

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概要

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• The ⁵⁷Fe Mössbauer effect of DyFe<inf>2</inf>Zn<inf>20</inf>and YFe<inf>2</inf>Zn<inf>20</inf>was studied at temperatures between 8 and 301 K, and at room temperature in the presence of an external magnetic field. The spectra of the two compounds appeared almost the same at temperatures above 77 K. Each spectrum exhibited a double peak, which is attributed to the electric field gradient (EFG) present at the Fe nuclei. However, the spectrum of DyFe<inf>2</inf>Zn<inf>20</inf>at 8 K exhibited a complicated shape, resulting from a magnetic hyperfine field and the EFG at the Fe nuclei. From the detailed analyses of the spectra, we concluded that Fe magnetic moments interact antiferromagnetically with Dy magnetic moments and that the Fe magnetic moments in DyFe<inf>2</inf>Zn<inf>20</inf>at 8 K are approximately 0.2 \mu_{\text{B}}/Fe.

• 2013-11-15

著者

• Tamura Ichiro

  Physics Department Toyama Medical And Pharmaceutical University

• Isikawa Yosikazu

  Graduate School of Science and Engineering, University of Toyama, Toyama 930-8555, Japan

• Mizushima Toshio

  Graduate School of Science and Engineering, University of Toyama, Toyama 930-8555, Japan

• Miyamoto Souta

  Graduate School of Science and Engineering, University of Toyama, Toyama 930-8555, Japan

関連論文

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• Origin of Weak Ferromagnetism in Yb_xFe_4Sb_, Relationship between Weak Ferromagnetism and Filling Ratio x(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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• Mossbauer Effect Study of Lattice Vibration of the Interface Layer between the Oxidized Surface and the Metallic Core of Small Iron Particles
• Low Frequency Vibrational Modes in Sintered Small Metal Particles Studied by Missbauer Spectroscopy
• Magnetic and Thermal Properties of Cubic Single-Crystal PrCu4Ag
• Temperature Dependence of Quadrupole Splitting and Spectra for Yb[x]FeSb Studied by Fe Mossbauer Effect
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• Dense Kondo Effect in Caged Compound CeRu₂Zn₂₀
• Mossbauer Effect and Magnetization Studies of YbFe_4Sb_ and LaFe_4Sb_(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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