2024 Thcr2si2结构

Thcr2si2结构

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WebBoth compounds are of ThCr2Si2 type crystal structure and exhibit antiferromagnetic ordering below TN = 53 K and TN = 12.8 K respectively. The magnetic structure wave vector is τ = [0, 0, 1]. View Web10 Aug 2024 · The ThCr 2 Si 2 structure was first reported by Ban and Sikirica in (), and since then, it has proven to be one of the most ubiquitous structural arrangements for …

ThCr2Si2型铁基超导体和相关磁性材料的输运性质与磁扭矩研究_ …

Web1 Apr 2024 · Magnetic phase diagram of the solid solution LaMn2 (Ge1−xSix)2 (0 ≤ x ≤ 1) unraveled by powder neutron diffraction. The structural and magnetic properties of the … Web1 Apr 2024 · Abstract. This work provides a brief review of the crystal structure, compositional scope, structural phase transitions, superconductivity, magnetism, and … chums winter coats

EuRu2As2: A New Ferromagnetic Metal with Collapsed ThCr2Si2 …

WebThCr2Si2结构层状化合物具有丰富的物理内涵,表现出奇特的物性。层状结构特点使其在能带和物性调控方面具有优势,通过筛选物性决定层（T2X2层）、掺杂或修饰有可能发现超导 … Web5 Jun 2024 · We investigated the coexistence of superconductivity and antiferromagnetic order in the compound Er2O2Bi with anti-ThCr2Si2-type structure through resistivity, magnetization, specific heat measurements and first-principle calculations. The superconducting transition temperature Tc of 1.23 K and antiferromagnetic transition … Web本发明涉及一种抑制LaCo2As2产生Co空位的方法及该方法制备的化合物。技术背景ThCr2Si2结构由形成共价键的“金属-非金属层”和“中间金属层”组成，其中“中间金属层”通常由碱金属，碱土金属或稀土金属构成。具有ThCr2Si2结构的化合物有一千种左右，其中含3d过渡族金属的化合物又占了其中大部分 ... chums wellingtons

Increased hole mobility in anti-ThCr2Si2-type La2O2Bi co-sintered …

ThCr2Si2 structure type: The “perovskite” of intermetallics

Web我们想进一步研究这类铱化物超导体,我们通过高温高压反应方法合成了具有ThCr2Si2型晶体结构的超导体Ba Ir_2As_2。多晶样品在空气中极其不稳定,需要氩气氛围的保护。BaIr_2As_2在2.45 K出现超导电性,属于第二类超导体,这与BaIr2P2和SrIr_2As_2超导体相似。 Web20 Feb 1998 · N. Sangeetha, V. Anand, E. Cuervo-Reyes, V. Smetana, A. Mudring, D. Johnston. Materials Science. 2024. The compound EuCo {2-y}As2 with the tetragonal ThCr2Si2 structure is known to contain Eu {+2} ions with spin S = 7/2 that order below a temperature TN = 47 K into an antiferromagnetic (AFM) proper…. Expand. 25. chums wilton mona lisa rugsWeb5 Apr 2024 · This database is a sister to the American Mineralogist Crystal Structure Database (AMCSD) and contains all the data that is in the AMCSD as well as data that has been deposited by individuals and laboratories. The database is searchable by text, words, elements, volume, or number of elements. Crystal structure data are downloadable in CIF ... detailed map of lincolnshire

"Web13 Dec 2024 · In Y 2 O 2 Bi with Bi square net, H substitution and Li intercalation led to higher superconducting transition temperature (T c), while F substitution led to lower T c, where T c is universally scaled by unit cell tetragonality c/a.Li intercalated Y 2 O 2 Bi showed a higher T c than previously reported Y 2 O 2 Bi even for the similar c/a. " - Thcr2si2结构

Thcr2si2结构

ThCr2Si2结构的铁基超导体及其相关材料研究(可编辑) - 豆丁网

Web1 Apr 2024 · Magnetic phase diagram of the solid solution LaMn2 (Ge1−xSix)2 (0 ≤ x ≤ 1) unraveled by powder neutron diffraction. The structural and magnetic properties of the ThCr2Si2-type solid solution LaMn2 (Ge1−xSix)2 (x = 0.0 to 1.0) have been investigated employing a combination of X-ray diffraction, magnetization and….

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Web16 May 2024 · We report synthesis, crystal structure and superconductivity in ThCr2Si2-type LaFe2As2 (La122). La122 was synthesized at 960°C for 1.5 h under a pressure of 3.4 GPa. An as-synthesized La122 (non-superconductor) had a collapsed tetragonal structure with a short c-axis length of 11.0144(4) Å as observed in CaFe2As2 under pressure. The … Web20 Nov 2014 · ThCr2Si2结构的铁基超导体及其相关材料研究泌中国科学技术大学学位论文原创性声明本人声明所呈交的学位论文,是本人在导师指导下进行研究工作所取得的成果。 …
WebAbstract. LaCo 2 As 2 can be synthesized as pure crystalline material by annealing a mixture of elements in Bi flux. The reaction, however, is accompanied by the incorporation … WebMetallic anti-ThCr2Si2-type RE2O2Bi (RE = rare earth) with Bi square nets show superconductivity while insulating La2O2Bi shows high hole mobility, by expanding the c-axis length through oxygen intercalation. In this study, alkaline earth metal oxides (CaO, SrO and BaO) were co-sintered with La2O2Bi. CaO and
Web一个固体实例： $\ce{ThCr2Si2}$ 的结构前线轨道概念表面上的轨道相互作用一个研究实例： $\ce{Ni(100)}$ 面上的 $\ce{CO}$ 化学吸附势垒化学吸附是一种折衷效应三维扩展结构 … Web豆丁网是面向全球的中文社会化阅读分享平台，拥有商业,教育,研究报告,行业资料,学术论文,认证考试,星座,心理学等数亿实用 ...
WebWe report a series of layered superconductors, anti-ThCr2Si2-type RE2O2Bi (RE = rare earth), composed of electrically conductive Bi square nets and magnetic insulating RE2O2 layers. Superconductivity was induced by separating the Bi square nets as a result of excess oxygen incorporation, irrespective of the

Web本文为您介绍超导材料的发展前景,内容包括超导材料的发展前景好,超导材料的最新进展。超导材料，是指具有在一定的低温条件下呈现出电阻等于零以及排斥磁力线的性质的材料。现已发现有28种元素和几千种合金和化合物可以成为超导体。下面是有关于超导材料的发展前 … detailed map of lewes delawareWeb24 Jul 2009 · 基于密度泛函理论，从头计算了具有ThCr2Si2型四方晶系的稀土金属化合物Yfe2B2体相的物理特性.能量计算结果表明Yfe2B2体相处于顺磁金属态；而能带结构、态密度、布居数以及差分电荷分布的计算结果表明Y原子的5s，5p电子具有很强的局域性；Fe原子的3d电子和B的1s，2s和2p电子强烈耦合，使得最近邻Fe ... detailed map of londonWeb24 Jul 2009 · 基于密度泛函理论，从头计算了具有ThCr2Si2型四方晶系的稀土金属化合物Yfe2B2体相的物理特性.能量计算结果表明Yfe2B2体相处于顺磁金属态；而能带结构、态 … chums womens nightwearWeb在本论文中,我们对ThCr2Si2结构的铁基及其相关化合物进行研究。. 我们详细地研究了122欠掺杂铁基超导体的面内电阻各向异性,并且研究了EuFe2-xCoxAs2的电子顺磁共振。. 我们 … chums womens bootsWeb7 Sep 2011 · EuRu2As2 was characterized by structural, resistivity, magnetization and Mössbauer measurements. It crystallizes in collapsed ThCr2Si2-type structure with c/a=2.58 and space group I4/mmm. The … chums womens brasWeb28 Oct 2015 · 在本论文中，我们对ThCr2Si2结构的铁基及其相关化合物进行研究。. 我们详细地研究i＇122欠掺杂铁基超导体的面内电阻各向异性，并且研究了EuFe2一zCozAs2的电 … detailed map of louisville kyWeb1 Aug 2002 · ThCr2Si2-type crystal has a large family member, most of which have certain unusual properties. In this work, the electronic, elastic and thermal properties of the … detailed map of madhya pradesh}