Физика твердого тела最新文献_第6页

Идентификация парамагнитных центров гадолиния и железа в ортосиликатах скандия и иттрия scandia和ittria正交硅酸盐中超磁性中心的鉴定

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.05.55494.45

В. А. Важенин, А. П. Потапов, К. А. Субботин, А. В. Фокин, М.Ю. Артёмов, Андрей Игоревич Титов, С. К. Павлов

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Влияние скорости ориентационной вытяжки на пьезоэлектрические свойства в короноэлектретах на основе сополимера винилиденфторид-тетрафторэтилен 共聚合物四氟乙烯对压电牵引率的影响

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.01.53929.482

Юрий Андреевич Гороховатский, Д. Э. Темнов, Ю И Сотова

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Исследование сжимаемости цианамидов металлов и влияния давления на их электронные свойства 金属氰化物可压缩性和电子性能压力研究

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.07.55850.81

Д. В. Корабельников, И. А. Федоров

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Механические свойства и теплопроводность композитов на основе скомканного графена и наночастиц никеля: молекулярная динамика 复合石墨和镍纳米颗粒的机械性能和热传导:分子动力学

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.09.56256.101

К.А. Крылова, Л.Р. Сафина, Р. Т. Мурзаев, С. А. Щербинин, Ю.А. Баимова, Р. Р. Мулюков

{"title":"Механические свойства и теплопроводность композитов на основе скомканного графена и наночастиц никеля: молекулярная динамика","authors":"К.А. Крылова, Л.Р. Сафина, Р. Т. Мурзаев, С. А. Щербинин, Ю.А. Баимова, Р. Р. Мулюков","doi":"10.21883/ftt.2023.09.56256.101","DOIUrl":"https://doi.org/10.21883/ftt.2023.09.56256.101","url":null,"abstract":"The mechanical properties and thermal conductivity of a composite based on crumpled graphene flakes and nickel nanoparticles obtained by high-temperature hydrostatic compression are investigated by the method of molecular dynamics. The pores of the graphene matrix of the composite are filled with nickel nanoparticles of different sizes (respectively, different contents of Ni - 8, 16 and 24 at.%). It was found that an increase in the amount of nickel on the one hand increases the thermal conductivity of the composite, and on the other hand reduces its strength, since strength is determined by the presence of a graphene grid, and thermal conductivity is determined by the presence of a conductive metal. The obtained results on thermophysical properties combined with high mechanical characteristics of Ni/graphene composites allow us to predict their application for the manufacture of new flexible electronics, supercapacitors and lithium-ion batteries.","PeriodicalId":24077,"journal":{"name":"Физика твердого тела","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87533872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Особенности оптических свойств полуметаллических соединений ScBi и YBi

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.09.56243.137

Юрий Викторович Князев, Ю. И. Кузьмин

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Влияние внешних воздействий на ползучесть алюминиевых сплавов с микроскопическими включениями при комнатных температурах 外部影响铝合金的蠕变，在室温下微量激活铝合金。

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.04.55286.549

М. Friha, Д.Е. Пшонкин, П.А. Скворцов, В.К. Николаев, А. А. Скворцов

{"title":"Влияние внешних воздействий на ползучесть алюминиевых сплавов с микроскопическими включениями при комнатных температурах","authors":"М. Friha, Д.Е. Пшонкин, П.А. Скворцов, В.К. Николаев, А. А. Скворцов","doi":"10.21883/ftt.2023.04.55286.549","DOIUrl":"https://doi.org/10.21883/ftt.2023.04.55286.549","url":null,"abstract":"It is devoted to the experimental study of the creep of an aluminum alloy containing microscopic inclusions. It was found that preliminary electric ignition (j<3· 106 A/m2) of the material leads to an increase in the creep of the samples. The reasons for the observed changes are associated by the authors with the formation of local areas of high mechanical stresses near the interface of the inclusion - matrix interface. The assessment of the level of emerging local thermoelastic stresses in aluminum deltaT ~ 35 MPa, as well as the characteristic size of such areas (~ 2 µm). The observed increase in creep is determined by the resultant effect of residual stresses and stresses of thermal nature, which contributes to the creation of additional local sources of deformation in the interfacial regions. Local stress concentrators lead to a local increase in the number of mobile dislocations, which is the main reason for the change in the mechanical properties of the aluminum alloy under consideration with microscopic inclusions.","PeriodicalId":24077,"journal":{"name":"Физика твердого тела","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85578428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Влияние массива субмикронных магнитных точек на намагниченность, критический ток и структуру вихревых конфигураций в ВТСП 亚微米磁点对vcp的磁化、临界电流和涡流结构的影响

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.04.55287.500

Анастасия Н. Максимова, Игорь А. Руднев, Владимир А. Кашурников, Александр Николаевич Мороз

{"title":"Влияние массива субмикронных магнитных точек на намагниченность, критический ток и структуру вихревых конфигураций в ВТСП","authors":"Анастасия Н. Максимова, Игорь А. Руднев, Владимир А. Кашурников, Александр Николаевич Мороз","doi":"10.21883/ftt.2023.04.55287.500","DOIUrl":"https://doi.org/10.21883/ftt.2023.04.55287.500","url":null,"abstract":"A vortex lattice in a high-temperature superconductor (HTS) with an array of submicron magnetic dots on the surface has been studied by the Monte Carlo method within the framework of a three-dimensional model of a layered high-temperature superconductor. The adjustment of the vortex lattice to an array of magnetic points was observed — ordered states arising in the process of remagnetization — configurations of one, two, three, or more vortex filaments fixed to a single magnetic point. The occurrence of these configurations was accompanied by peaks on the magnetization curve. The influence of the HTS anisotropy on the adjustment of the vortex lattice is analyzed. The ordered configurations of the vortex lattice are also associated with the non-monotonic nature of the dependences of the superconductor critical current on the magnetic field. The influence of temperature, magnetic moment of points, and film thickness on the critical current is investigated. With an increase in temperature and a decrease in the magnetization of magnetic points, the maximum of the critical current shifts towards a lower field. The structure of vortex filaments in the inhomogeneous field of a magnetic point is analyzed in detail. The mechanism of the influence of ordered vortex configurations on magnetization and critical current is discussed.","PeriodicalId":24077,"journal":{"name":"Физика твердого тела","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80753713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Исследование распространения спиновых волн в системе гофрированный волновод-планарный волновод при изменении параметров модуляции 自旋波传播研究，波导-平面波导改变调制参数

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.07.55840.43h

Виктор Андреевич Губанов, А. В. Кострикин, Александр Владимирович Садовников

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Температурно-барические особенности магнитных характеристик в системах со структурными переходами типа смещения 偏移型结构转移系统中磁性温度特征

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.02.54303.523

В.Я. Вальков, А.В. Головчан, И.Ф. Грибанов, Б.М. Тодрис, Е.П. Андрейченко, В. И. Митюк, А. В. Маширов

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Распространение невзаимных спиновых волн в многослойном магнонном кристалле 多层木兰晶体中非外部性自旋波传播

Физика твердого тела Pub Date : 2023-01-01 DOI: 10.21883/ftt.2023.06.55657.18h

С А Одинцов, А.С. Пташенко, Эдвин Гарривич Локк, Е. Н. Бегинин, Александр Владимирович Садовников

{"title":"Распространение невзаимных спиновых волн в многослойном магнонном кристалле","authors":"С А Одинцов, А.С. Пташенко, Эдвин Гарривич Локк, Е. Н. Бегинин, Александр Владимирович Садовников","doi":"10.21883/ftt.2023.06.55657.18h","DOIUrl":"https://doi.org/10.21883/ftt.2023.06.55657.18h","url":null,"abstract":"The possibility of frequency-selective propagation of spin waves in a magnonic microwave guide with a magnonic crystal consisting of two layers with different values of the saturation magnetization in the layers is demonstrated. It is shown that multimode propagation of spin waves can occur inside a two-layer structure in two frequency ranges, while the presence of a magnonic crystal on the surface of the structure leads to the manifestation of a band gap in one of the frequency ranges. At the same time, the process of propagation of a spin-wave signal is accompanied by a strong nonreciprocity, which manifests itself in a change in the amplitude-frequency characteristics when the direction of the external magnetic field is reversed, while the frequency range of the band gap differs depending on the direction of the field. The proposed concept of a two-layer spin-wave waveguide can underlie the manufacture of multichannel filters or magnonic logic devices.","PeriodicalId":24077,"journal":{"name":"Физика твердого тела","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73567774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0