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Pis'ma v Zh. Èksper. Teoret. Fiz., 2014, Volume 100, Issue 7, Pages 525–531 (Mi jetpl4141)  

This article is cited in 2 scientific papers (total in 2 papers)

CONDENSED MATTER

Features of the formation of magnetic moments of Tm$^{3+}$ and Yb$^{3+}$ rare-earth ions in LuB$_{12}$ cage glass

N. E. Sluchankoa, A. N. Azarevichab, M. A. Anisimova, A. V. Bogacha, V. V. Voronova, S. Yu. Gavrilkinc, V. V. Glushkovab, S. V. Demishevab, A. V. Kuznetsovd, K. V. Mitsenc, V. B. Philippove, N. Yu. Shitsevalovae, S. Gabanif, K. Flachbartf

a A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow
b Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
c P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
d National Engineering Physics Institute "MEPhI", Moscow
e Frantsevich Institute of Materials Science Problems, National Academy of Sciences of Ukraine, Kiev
f Institute of Experimental Physics, Slovak Academy of Sciences

Abstract: The features of the formation of the magnetic moments of Tm$^{3+}$ and Yb$^{3+}$ ions in a metallic matrix of LuB$_{12}$ cage glass have been studied in measurements of the magnetization and specific heat in the temperature range of $1.9$$300$ K in magnetic fields up to $90$ kOe. It has been shown that a paramagnetic response from the localized moments of isolated ions Tm$^{3+}$ ($7.6\mu_{B}$) and Yb$^{3+}$ ($4.5\mu_{B}$) is observed at temperatures of $150$$300$ K. A transition to the cage glass phase at low temperatures $(T\ll T^*\sim60 $K) is accompanied by disordering in the system of rare-earth ions and by formation of many-body states near Tm$^{3+}$ and Yb$^{3+}$ ions. At low temperatures near $T_m$ in low magnetic fields, the appearance of an additional spin polarization, which is suppressed with an increase in the field, has been observed. The effective moments and $g$-factors of Tm and Yb obtained in high fields imply both the binding of a small fraction of magnetic ions to antiferromagnetic dimers and the $\Gamma_6$ ground state of the $ ^2F_{7/2}$ multiplet of the ytterbium ion. A scenario alternative to the Kondo-type behavior has been proposed to explain the nature of many-body states and the appearance of the spin polarization in rare-earth dodecaborides.

DOI: https://doi.org/10.7868/S0370274X14190102

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English version:
Journal of Experimental and Theoretical Physics Letters, 2014, 100:7, 470–476

Bibliographic databases:

Document Type: Article
Received: 28.07.2014
Revised: 02.09.2014

Citation: N. E. Sluchanko, A. N. Azarevich, M. A. Anisimov, A. V. Bogach, V. V. Voronov, S. Yu. Gavrilkin, V. V. Glushkov, S. V. Demishev, A. V. Kuznetsov, K. V. Mitsen, V. B. Philippov, N. Yu. Shitsevalova, S. Gabani, K. Flachbart, “Features of the formation of magnetic moments of Tm$^{3+}$ and Yb$^{3+}$ rare-earth ions in LuB$_{12}$ cage glass”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:7 (2014), 525–531; JETP Letters, 100:7 (2014), 470–476

Citation in format AMSBIB
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\paper Features of the formation of magnetic moments of Tm$^{3+}$ and Yb$^{3+}$ rare-earth ions in LuB$_{12}$ cage glass
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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\pages 525--531
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    2. W. Han, Zh. Wang, Q. Li, X. Lian, X. Liu, Q. Fan, Ya. Zhao, “Semiconductor-insulator transition in a ybb6 nanowire with boron vacancy”, J. Solid State Chem., 262 (2018), 244–250  crossref  isi  scopus
  • Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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