WebMay 23, 2024 · Inverse Heusler compounds in the XA structure (prototype Hg 2 CuTi, space group F-4m3) differs from the full Heusler structure (L2 1) by half the X atoms interchanging positions with the Y or Z ... WebApr 11, 2024 · It was suggested recently [Anand et al., Energy Env. Sci. 11 (2024) 1480] that single-phase half-Heusler compounds can be obtained from structurally unstable alloys having 19 valence electrons by introducing defects to adjust their valence electrons count to 18. In our work we extend this approach to Fe–V–Al and Fe–Ti–Sn full-Heusler …
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Web2 days ago · 1.Introduction. Half metallic ferromagnetic materials have attracted much attention due to their high Curie temperature (T c) and tunable electronic structure [1].In 1983, half metallicity in half-heusler NiMnSb alloy was first proposed by Groot et al. [2] while studying the electronic band structure it is found that the spin majority channel … WebJun 27, 2024 · The half-Heusler compounds with valence electron counting (VEC) of eight or 18 electrons are semiconductors with fascinating electronic and thermoelectric properties, and these fascinating properties are of topological insulating properties, potential application in solar cell, application in piezoelectric, high-performance thermoelectric …
WebJul 23, 2024 · Many half-Heusler compounds, RPtBi (R = rare earth), have been theoretically predicted to be topological semimetals. Among various topological … WebApr 13, 2024 · Cubic Mn_{2}Ga films with the half-Heusler C1_{b} structure are grown on V (001) epitaxial films. ... Extensive first-principles calculations suggest that inverse …
WebJan 1, 2024 · Thermoelectric properties of half-Heusler compounds TaIrGe1-xSnx (x = 0, 0.25, 0.50, 0.75 and 1) has been computed using semi-classical Boltzmann transport theory, TaIrGe0.5Sn0.5 has a higher ... WebOct 31, 2024 · New compositions and superstructures based on Heusler and half-Heusler compounds are being reported and investigated, both experimentally and theoretically (including by using the density functional …
WebIn this work, different characteristics of GB phases in Ti-doped NbFeSb half-Heusler compounds are revealed using a combination of scanning transmission electron …
WebApr 4, 2024 · A half-Heusler compound, which has a total of 18 valence electron counts, is a novel prospective thermoelectric material, with higher electrical conductivity than other … thalia theater networkWebApr 12, 2024 · However, half metallicity also depends strongly on atomic order in Heusler compounds. In our example, Mn 2 VAl (L2 1 -type) and Mn 2 CoAl (XA-type) have different crystal structures, and it is difficult to achieve the atomic order required experimentally in Heusler materials. synthesize an ionic compound labWebJan 11, 2024 · We find that the presence of such a gap at the Fermi energy in one or both spin channels contributes significantly to the stability of a half-Heusler compound. We … thalia theater rache der fledermausWebSep 13, 2024 · Half-Heusler (HH) compounds (space group Fm m) have garnered increasing attention in recent years in the thermoelectric community. Three decades ago, … thalia theater presseThe half-Heusler compounds have distinctive properties and high tunability which makes the class very promising as thermoelectric materials. A study has predicted that there can be as many as 481 stable half-Heusler compounds using high-throughput ab initio calculation combine with machine … See more Heusler compounds are magnetic intermetallics with face-centered cubic crystal structure and a composition of XYZ (half-Heuslers) or X2YZ (full-Heuslers), where X and Y are transition metals and Z is in the See more Depending on the field of literature being surveyed, one might encounter the same compound referred to with different chemical formulas. An example of the most common difference is X2YZ versus XY2Z, where the reference to the two transition metals X … See more Understanding the mechanical properties of Heusler compounds is paramount for temperature-sensitive applications (e.g. thermoelectrics) for which some sub-classes of Heusler compounds are used. However, experimental studies are rarely encountered in … See more • Cu2MnAl, Cu2MnIn, Cu2MnSn • Ni2MnAl, Ni2MnIn, Ni2MnSn, Ni2MnSb, Ni2MnGa • Co2MnAl, Co2MnSi, Co2MnGa, Co2MnGe, Co2NiGa • Pd2MnAl, Pd2MnIn, Pd2MnSn, Pd2MnSb See more Although traditionally thought to form at compositions XYZ and X2YZ, studies published after 2015 are discovering and reliably predicting … See more The early studies Full-Heusler compound Cu2MnAl has the following properties. Its magnetism varies considerably with heat treatment and composition. It has a room-temperature saturation induction of around 8,000 gauss, which exceeds that of the element See more Half-metallic ferromagnets exhibit a metallic behavior in one spin channel and an insulating behavior in the other spin channel. The first example of Heusler Half-metallic … See more thalia thaiWebZrNiSn基half-Heusler热电材料具有较高的热导率,限制了其热电性能进一步提高。为了降低晶格热导率,本研究采用磁悬浮熔炼和放电等离子烧结的方法制备ZrNiSn和Zr_(0.5)Hf_(0.5)Ni_(1-x)Pt_(x)Sn(x=0,0.1,0.15,0.2,0.25,0.3)高熵half-Heusler热电合金。在Zr位进行Hf原子替代,Ni位进行Pt原子替代以调控该合金的构型熵, synthesit reviewWebhalf Heusler compounds. 4. Summary and Conclusion Ti0.33Zr0.33Hf0.33NiSn half-Heusler compounds were prepared by arc melting, and the thermoelectric … thalia theater programm april