Thermodynamic and optical properties of new langasites Pr3CrGe3Be2O14 and Pr3AlGe3Be2O14

M. M. Markina; B. V. Mill; S. A. Klimin; M. N. Popova; A. N. Vasiliev

doi:10.1016/j.jallcom.2021.162766

Thermodynamic and optical properties of new langasites Pr₃CrGe₃Be₂O₁₄ and Pr₃AlGe₃Be₂O₁₄

M. M. Markina
, B. V. Mill
, S. A. Klimin
, M. N. Popova
, A. N. Vasiliev

Lomonosov Moscow State University
RAS - Institute of Spectroscopy
National University of Science and Technology "MISiS"

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We present the results of thermodynamic and optical spectroscopy measurements of the Pr₃CrGe₃Be₂O₁₄ 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 Pr₃CrGe₃Be₂O₁₄, 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 Pr₃AlGe₃Be₂O₁₄. Both compounds evidence the Schottky anomaly at low temperatures, most pronounced in the case of Pr₃CrGe₃Be₂O₁₄.

Original language	English
Article number	162766
Journal	Journal of Alloys and Compounds
Volume	898
DOIs	https://doi.org/10.1016/j.jallcom.2021.162766
State	Published - Mar 25 2022
Externally published	Yes

Keywords

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

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10.1016/j.jallcom.2021.162766

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title = "Thermodynamic and optical properties of new langasites Pr3CrGe3Be2O14 and Pr3AlGe3Be2O14",

abstract = "We present the results of thermodynamic and optical spectroscopy measurements of the Pr3CrGe3Be2O14 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 Pr3CrGe3Be2O14, no long-range magnetic order has been found down to 0.4 K in terms of both magnetization M and specific heat Cp. These data are compared with those on Pr3AlGe3Be2O14. Both compounds evidence the Schottky anomaly at low temperatures, most pronounced in the case of Pr3CrGe3Be2O14.",

keywords = "High-resolution optical spectroscopy, Low-dimensional magnetism, Magnetic susceptibility, New langasites, Schottky anomaly, Specific heat",

author = "Markina, \{M. M.\} and Mill, \{B. V.\} and Klimin, \{S. A.\} and Popova, \{M. N.\} and Vasiliev, \{A. N.\}",

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year = "2022",

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doi = "10.1016/j.jallcom.2021.162766",

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T1 - Thermodynamic and optical properties of new langasites Pr3CrGe3Be2O14 and Pr3AlGe3Be2O14

AU - Markina, M. M.

AU - Mill, B. V.

AU - Klimin, S. A.

AU - Popova, M. N.

AU - Vasiliev, A. N.

PY - 2022/3/25

Y1 - 2022/3/25

N2 - We present the results of thermodynamic and optical spectroscopy measurements of the Pr3CrGe3Be2O14 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 Pr3CrGe3Be2O14, no long-range magnetic order has been found down to 0.4 K in terms of both magnetization M and specific heat Cp. These data are compared with those on Pr3AlGe3Be2O14. Both compounds evidence the Schottky anomaly at low temperatures, most pronounced in the case of Pr3CrGe3Be2O14.

AB - We present the results of thermodynamic and optical spectroscopy measurements of the Pr3CrGe3Be2O14 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 Pr3CrGe3Be2O14, no long-range magnetic order has been found down to 0.4 K in terms of both magnetization M and specific heat Cp. These data are compared with those on Pr3AlGe3Be2O14. Both compounds evidence the Schottky anomaly at low temperatures, most pronounced in the case of Pr3CrGe3Be2O14.

KW - High-resolution optical spectroscopy

KW - Low-dimensional magnetism

KW - Magnetic susceptibility

KW - New langasites

KW - Schottky anomaly

KW - Specific heat

UR - https://www.scopus.com/pages/publications/85120468488

U2 - 10.1016/j.jallcom.2021.162766

DO - 10.1016/j.jallcom.2021.162766

M3 - Article

AN - SCOPUS:85120468488

SN - 0925-8388

VL - 898

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 162766

ER -

Thermodynamic and optical properties of new langasites Pr₃CrGe₃Be₂O₁₄ and Pr₃AlGe₃Be₂O₁₄

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Keywords

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