Synthesis, Structure and Magnetic Properties of Monoclinic Lanthanum-Chromium Borate LaCr3(BO3)4 | Sciact - CRIS-система Института катализа

Synthesis, Structure and Magnetic Properties of Monoclinic Lanthanum-Chromium Borate LaCr3(BO3)4 Научная публикация

Журнал

Journal of Alloys and Compounds
ISSN: 0925-8388 , E-ISSN: 1873-4669

Вых. Данные

Год: 2024, Том: 994, Номер статьи : 174683, Страниц : 9 DOI: 10.1016/j.jallcom.2024.174683

Ключевые слова

borates, flux growth, crystal structure, differential scanning calorimetry, powder X-ray diffraction, IR spectroscopy, antiferromagnet

Авторы

Volkova Elena A. ¹ , Platunov Mikhail S. ² , Antipin Alexander M. ³ , Alpanova Regina R. ¹ , Dubrovskiy Andrey A. ^4,5 , Pyastolova Yulia V. ^4,5 , Podobraznyh Andrey D. ¹ , Kosorukov Vladimir L. ¹ , Koporulina Elizaveta V. ^1,6 , Maltsev Victor V. ¹

Организации

1	Faculty of Geology, Lomonosov Moscow State University, Moscow, Russian Federation
2	Synchrotron radiation facility SKIF, Boreskov Institute of Catalysis SB RAS, Kol'tsovo, Russian Federation
3	Shubnikov Institute of Crystallography, Complex "Crystallography and Photonics", NRC "Kurchatov institute", Moscow, Russian Federation
4	Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
5	Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
6	Melnikov Research Institute of Comprehensive Exploitation of Mineral Resources of the Russian Academy of Sciences, Moscow, Russian Federation

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FWUR-2024-0040
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

Single crystals of LaCr3(BO3)4 were synthesized through spontaneous nucleation from a K2Mo3O10 flux melt. The crystal structure was determined using single-crystal X-ray diffraction (XRD) at temperatures of 293 K and 85 K. LaCr-borate crystallizes in the monoclinic C2/c space group with unit cell parameters a = 7.47980(5) Å, b = 9.55180(7) Å, c = 11.48330(8) Å, β= 104.0060(6)°, V = 796.04(1) Å3 (for C1, T = 293 K), and a = 7.47380(5) Å, b = 9.55520(7) Å, c = 11.47100(8) Å, β = 103.9330(6)°, V = 795.08(1) Å3 (for C2, T = 85 K), each with Z = 4. The temperature dependence of the unit cell parameters, including the monoclinic angle (β) and the unit cell volume (V), was investigated over the range of 85 to 293 K. No structural phase transitions were observed in the low-temperature region down to 85 K. Differential scanning calorimetry (DSC) measurements revealed no high-temperature phase transitions between 50 and 1350°C. Infrared (IR) spectroscopy confirmed the monoclinic structure of LaCr3(BO3)4 crystals, revealing characteristic absorption bands, including the lowest frequency mode associated with the translational vibrations of the La3+ ion.

Volkova E.A. , Platunov M.S. , Antipin A.M. , Alpanova R.R. , Dubrovskiy A.A. , Pyastolova Y.V. , Podobraznyh A.D. , Kosorukov V.L. , Koporulina E.V. , Maltsev V.V.
Synthesis, Structure and Magnetic Properties of Monoclinic Lanthanum-Chromium Borate LaCr3(BO3)4
Journal of Alloys and Compounds. 2024. V.994. 174683 :1-9. DOI: 10.1016/j.jallcom.2024.174683 WOS Scopus CAPlus OpenAlex СКИФ ID

Поступила в редакцию:	14 окт. 2023 г.
Принята к публикации:	28 апр. 2024 г.
Опубликована online:	1 мая 2024 г.
Опубликована в печати:	5 авг. 2024 г.

Web of science:	WOS:001240022300001
Scopus:	2-s2.0-85192196181
Chemical Abstracts:	2024:998210
OpenAlex:	W4396559906
СКИФ ID:	1888

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