Journal of Alloys and Compounds2022,Vol.8987.DOI:10.1016/j.jallcom.2021.162766

(162766)Thermodynamic and optical properties of new langasites Pr_3CrGe_3Be_2O_(14) and Pr_3AlGe_3Be_2O_(14)

M.M. Markina B.V. Mill S.A Klimin
Journal of Alloys and Compounds2022,Vol.8987.DOI:10.1016/j.jallcom.2021.162766

(162766)Thermodynamic and optical properties of new langasites Pr_3CrGe_3Be_2O_(14) and Pr_3AlGe_3Be_2O_(14)

M.M. Markina 1B.V. Mill 1S.A Klimin2
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作者信息

  • 1. Lomonosov Moscow State University, Moscow 119991, Russia
  • 2. Institute of Spectroscopy, Russian Academy of Sciences, Moscow 108840, Russia
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Abstract

We present the results of thermodynamic and optical spectroscopy measurements of the Pr_3CrGe_3Be_2O_(14) compound - a member of the recently discovered Be-subgroup of the langasite family. Despite the presence of both rare-earth and transition-metal subsystems in Pr_3CrGe_3Be_2O_(14), no long-range magnetic order has been found down to 0.4 K in terms of both magnetization M and specific heat C_p. These data are compared with those on Pr_3AlGe_3Be_2O_(14). Both compounds evidence the Schottky anomaly at low temperatures, most pronounced in the case of Pr_3CrGe_3Be_2O_(14).

Key words

New langasites/Magnetic susceptibility/Specific heat/High-resolution optical spectroscopy/Low-dimensional magnetism/Schottky anomaly

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出版年

2022
Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN:0925-8388
参考文献量25
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