Type-I superconductivity in 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Al</mml:mi><mml:mn>6</mml:mn></mml:msub><mml:mi>Re</mml:mi></mml:mrow></mml:math>

Peets, Darren C.; Cheng, Erjian; Ying, Tianping; Kriener, Markus; Shen, Xiaoping; Li, Shiyan; Feng, D. L.

doi:10.1103/physrevb.99.144519

Cited by 24 publications

(19 citation statements)

References 43 publications

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“…This is a characteristic feature of type-I superconductors, such as YSb 2 , 22 KBi 2 , 23 ScGa 3 , LuGa 3 , 24 and ReAl 6 . 25 The broadening of the M(H) data from a pure sawtooth is likely a consequence of demagnetization effects.…”

Section: Resultsmentioning

confidence: 99%

Superconductivity on a Bi Square Net in LiBi

et al. 2020

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We present the crystallographic analysis, superconducting characterization and theoretical modeling of LiBi, that contains the lightest and the heaviest nonradioactive metal. The compound crystallizes in a tetragonal (CuAu-type) crystal structure with Bi square nets separated by Li planes (parameters a = 3.3636(1) Å and c = 4.2459(2) Å, c/a = 1.26). Superconducting state was studied in detail by magnetic susceptibility and heat capacity measurements. The results reveal that LiBi is a moderately coupled type-I superconductor (λ e-p = 0.66) with T c = 2.48 K and a thermodynamic critical field H c (0) = 157 Oe. Theoretical studies show that bismuth square net is responsible for superconductivity in this compound, but the coupling between the Li planes and Bi planes makes a significant contribution to the superconductivity.

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Section: Resultsmentioning

confidence: 99%

Superconductivity on a Bi Square Net in LiBi

et al. 2020

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“…Superconductivity is observed below the onset point of the diamagnetization signal, i.e., T onset c = 2.0 K. The superconducting volume fraction estimated from the ZFC data slightly exceeds 100%, indicating a good sample quality. Meanwhile, the relatively small difference between the ZFC and FC curves shows a very small contribution from magnetic vortices, indicating type-I superconductivity [10] [11]. The isothermal magnetization 4πM (H) of NbGe 2 in the temperature range 1.8 ∼ 0.4 K is displayed in Fig.…”

Section: Resultsmentioning

confidence: 98%

“…Only a few are reported to be type I, and most of them are elementary metals with lower T c [9]. Nevertheless, a few binary and ternary compounds are found to be type I, for example, ScGa 3 [10], Al 6 Re [11], PdTe 2 [12], BeAu [13], Rh 2 Ga 9 [14], and LiPd 2 Ge [15]. Interestingly, some type-I superconductors will become type II/1 at low temperatures, accompanied by an enhanced surface superconducting state [16,17].…”

Section: Introductionmentioning

confidence: 99%

Type-I superconductivity in noncentrosymmetric NbGe$_{2}$

Lv,

Li,

Chen

et al. 2020

Preprint

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Single crystals of NbGe2 which crystallize in a noncentrosymmetric hexagonal structure with chirality are synthesized and their superconductivity is investigated. Type-I superconductivity is confirmed by dc magnetization, field-induced second-to first-order phase transition in specific heat, and a small Ginzburg-Landau parameter κGL = 0.12. The isothermal magnetization measurements show that there is a crossover from type-I to type-II/1 superconductivity with decreasing temperature and an unusually enhanced surface superconducting critical field (Hc3) is discovered. The band structure calculations indicate the presence of Kramer-Weyl nodes near the Fermi level. These observations demonstrate that NbGe2 is an interesting and rare example involving the possible interplay of type-I superconductivity, noncentrosymmetric structure and topological properties.

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“…When Peets studied the superconductivity of Al, he found that the critical superconducting temperature of nano-Al is 2.7 times that of crystalline Al. e critical superconducting temperature of nano-Al is 2.7 times than that of crystalline Al [8].…”

Section: Introductionmentioning

confidence: 95%

Structural Performance Characteristics of Nanomaterials and Its Application in Traditional Architectural Cultural Design and Landscape Planning

Chao-hai

Wang

2021

Advances in Civil Engineering

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In recent years, with the rapid development of industrial technology, industrial materials have also begun to develop in more and more refined directions. Nanotechnology is one of the most developed core technologies in industrial technology, and these characteristics of nanomaterials make them shine in many fields, especially in the field of construction. Nowadays, conventional materials still have the problems of heavy weight and high thermal conductivity as thermal insulation materials for external walls. At the same time, it has outstanding performance that conventional materials do not have. Nanomaterials are widely used in various fields with rapid growth due to their many excellent properties and have produced huge economic benefits and social significance. This article describes the basic characteristics of nanomaterials, including surface effects, quantum size effects, small size effects, and macroscopic quantum tunneling effects. As nanomaterials and nanotechnology become more and more mature, the research on architectural coatings in our country has been slightly strengthened. Nanomaterials have a huge impact on future economic development and have become the most promising objects in the current material field. The experimental results prove that the foaming ability of nanomaterials is much better than that of ordinary materials, and the fault tolerance rate of the cement paste is also the highest. This can also positively show that the relationship between nanotechnology and construction engineering is getting closer and closer, and the combination of nanomaterials and construction materials shows people the broad prospects of construction materials for the development of ecological construction materials that improve the living environment and improve the quality of life.

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Type-I superconductivity in Al6Re

Cited by 24 publications

References 43 publications

Superconductivity on a Bi Square Net in LiBi

Superconductivity on a Bi Square Net in LiBi

Type-I superconductivity in noncentrosymmetric NbGe$_{2}$

Structural Performance Characteristics of Nanomaterials and Its Application in Traditional Architectural Cultural Design and Landscape Planning

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