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  • ВЛИЯНИЕ ВНЕШНЕГО МАГНИТНОГО ПОЛЯ НА МАГНИТНЫЕ СВОЙСТВА КВАЗИОДНОМЕРНЫХ ХАЛДЕЙНОВСКИХ МАГНЕТИКОВ (Y1-XNdX)2BaNiO5
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October 14, 2026
At HSE University–St Petersburg, Experts Discuss How AI Changes Tourist Routes and Cultural Heritage
Neural networks are no longer simple travel assistants; now they decide what to include on the route and what to skip. Artificial intelligence changes how people perceive a place and shapes the image of tourist centres. At the II International Scientific and Practical Conference ’Information Technologies in the Preservation and Promotion of Cultural Heritage,’ researchers discussed who controls algorithmic solutions and in what ways, and whether authentic traditions get lost in them.
October 12, 2026
Road Injuries Leading Cause of Death Among Men Aged 10 to 39
Worldwide, road injuries are the leading cause of death among males aged 10–39. An international team of researchers reached this conclusion as part of the Global Burden of Disease Study 2023, analysing data from 204 countries between 1990 and 2023. Their findings have been published in The Lancet Public Health, with HSE University Professor Vasily Vlassov listed among the collaborators.
October 8, 2026
HSE Experts Take Part in 23rd Annual Meeting of Valdai Discussion Club
The 23rd Annual Meeting of the Valdai Discussion Club was held from September 28 to October 1, 2026 under the theme ‘Responsibility for the Future: Limits of the Possible, or Limitless Possibilities?’ The forum brought together 120 experts from 40 countries, including representatives of China, the United States, India, Brazil, the United Kingdom, Germany, Egypt, Iran, and Japan.

 

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ВЛИЯНИЕ ВНЕШНЕГО МАГНИТНОГО ПОЛЯ НА МАГНИТНЫЕ СВОЙСТВА КВАЗИОДНОМЕРНЫХ ХАЛДЕЙНОВСКИХ МАГНЕТИКОВ (Y1-XNdX)2BaNiO5

С. 150–150.
Popova E.

In this paper, the field dependences of magnetization M(B) and temperature dependences of heat capacity C(T,B) were investigated for compounds of the (Y1-xNdx)2BaNiO5 family with different concentrations of neodymium  in the presence of an external magnetic field

Language: Russian
Full text
DOI
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Keywords: халдейновские цепочки Haldane chainsспиновая щельspin gap
Publication based on the results of:
Квантовые эффекты в низкоразмерных гибридных наноструктурах (2022)

In book

Фундаментальная математика и ее приложения в естествознании: спутник Международной научной конференции "Уфимская осенняя математическая школа-2022". Тезисы докладов ХIII Международной школы-конференции студентов, аспирантов и молодых ученых, посвященной 50-летию образования математического и физического факультетов БашГУ
Уфа: РИЦ БашГУ, 2022.
Similar publications
Фазовые переходы под действием магнитного поля в редкоземельных никелатах
Popova E., В кн.: СОВРЕМЕННЫЕ ФИЗИКА, МАТЕМАТИКА, ЦИФРОВЫЕ И НАНОТЕХНОЛОГИИ В НАУКЕ И ОБРАЗОВАНИИ (ФМЦН-24) Сборник тезисов III Всероссийской молодежной школы-конференции, посвященной 70-летию со дня рождения профессора Р.М. Асадуллина.: Уфа: Башкирский государственный педагогический университет им. М. Акмуллы, 2024. С. 85–87.
The main motif of the crystal structure of rare earth nickelates (Y1-xRx)2BaNiO5 (R = Gd or Nd) are chains of Ni2+ ions with spin S=1 (Haldane chains) directed along the a axis of the crystal. The interaction between rare earth ions R3+ located between the chains is carried out through spin fluctuations of the nickel ...
Added: March 5, 2025
ВЗАИМОДЕЙСТВИЯ МАГНИТНЫХ ПОДСИСТЕМ В КВАЗИОДНОМЕРНЫХ ХАЛДЕЙНОВСКИХ МАГНЕТИКАХ (Y1-XNDX)2BANIO5
Popova E., В кн.: Сборник тезисов II Всероссийской молодежной школы-конференции «СОВРЕМЕННЫЕ ФИЗИКА, МАТЕМАТИКА, ЦИФРОВЫЕ И НАНОТЕХНОЛОГИИ В НАУКЕ И ОБРАЗОВАНИИ (ФМЦН-23)», посвященной 80-летию со дня рождения д.ф.-м.н., профессора Р.С.Сингатуллина.: Уфа: Издательство БГПУ, 2023. С. 118–119.
The compounds of the (Y1-xNdx)2BaNiO5 family contain two types of magnetic ions: Ni2+ (S=1) and Nd3+ (J=9/2). The interaction between the magnetic subsystems of the studied compounds with different concentrations of neodymium is manifested in anomalies in the temperature dependence of the heat capacity C(T) and the magnetic susceptibility χ(T). The paper analyzes experimental data ...
Added: March 5, 2025
ВЛИЯНИЕ ВНЕШНЕГО МАГНИТНОГО ПОЛЯ НА МАГНИТНЫЕ СВОЙСТВА КВАЗИОДНОМЕРНЫХ ХАЛДЕЙНОВСКИХ МАГНЕТИКОВ (Y1-xNdx)2BaNiO5 (x = 0.25 и 0.04)
Popova E., Известия Уфимского научного центра РАН 2023 № 1 С. 75–80
In the compounds of the (Y1-xNdx)2BaNiO5 family, the paradoxical coexistence of the Haldane phase and spin waves is realized. The magnetic ordering in the system is caused by the interaction of Nd3+ ions through spin fluctuations of a nickel chain, which remains internally disordered. Nd3+ magnetic moments do not deviate from the c axis of ...
Added: March 22, 2023
Халдейновские цепочки
Popova E., Екомасов Е. Г., Известия Уфимского научного центра РАН 2021 № 1 С. 49–55
In a number of quasi-one-dimensional magnets, transition metal ions obeying the motives of the crystal lattice can form chains of integer spins that are distant from each other, named Haldane chains. This paper provides a brief overview of the magnetic properties of Haldane chains and considers some compounds containing such chains. The main features of ...
Added: December 28, 2020
Магнитные взаимодействия в квазиодномерных халдейновских антиферромагнетиках
Popova E., В кн.: Фундаментальная математика и ее приложения в естествознании: тезисы докладов XI Международной школы-конференции студентов, аспирантов и молодых ученых (г. Уфа, 11 – 14 ноября 2020 г.).: НИЦ «АЭТЕРНА», 2020. С. 128–129.
In this paper, the temperature dependences of the heat capacity C(T) and magnetic susceptibility χ(T) of polycrystalline samples of the (Y1-xndx)2banio5 family are studied in a wide range of concentrations, from x = 0.01 to x = 1. The analysis of the dependences of χ (T) showed that in all the studied compounds in the ...
Added: December 28, 2020
Coexistence of the magnetically ordered and Haldane states in (Y1-xNdx)2BaNiO5
Popova E., Klimin S. A., Popova M. N. et al., , in: EPJ Web of ConferencesVol. 185: Moscow International Symposium on Magnetism (MISM 2017) .: EDP Sciences, 2018. Ch. 03003 P. 1–4.
The magnetic properties of (Y1-xNdx)2BaNiO5  with x = 0.01, 0.02, 0.03, 0.04, and 0.05 are investigated by means of specific heat, magnetic susceptibility, and spectroscopic measurements. We estimate a magnetic contribution of the neodymium subsystem into the magnetic susceptibility and specific heat using temperature dependencies of the splitting of the ground Kramers doublet of the ...
Added: October 3, 2018
EPJ Web of Conferences
EDP Sciences, 2018.
The magnetic properties of (Y1-xNdx)2BaNiO5  with x = 0.01, 0.02, 0.03, 0.04, and 0.05 are investigated by means of specific heat, magnetic susceptibility, and spectroscopic measurements. We estimate a magnetic contribution of the neodymium subsystem into the magnetic susceptibility and specific heat using temperature dependencies of the splitting of the ground Kramers doublet of the ...
Added: October 3, 2018
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