The emerging ferroic orderings in two dimensions

Abstract

Because of the discovery of carbon atomic flatland, emerging physical phenomena are reported using the platform of two-dimensional materials and their hetero-structures. Especially, quantum orderings, such as superconductivity, ferromagnetism, and ferroelectricity in the atomically thin limit are cutting edge topics, which are of broad interest in the scope of condensed matter physics. In this study, we will recall the recent developments on two-dimensional ferroic orderings from both experimental and theoretical points of view. The booming of ferroic orderings in van der Waals two-dimensional materials are believed to hold promises for the next generation spin-or dipole-related nanoelectronics, because they can be seamlessly interfaced into heterostructures, and in principle are in line with large scale low-cost growth, flexible wearable devices, as well as semiconducting electronics thanks to the existence of band gaps in many of them.

Recent Advances in SnSe Nanostructures beyond Thermoelectricity

“…As 2D materials facilitate the trend of miniaturization and high integration of devices, 2D ferroics has aroused wide public interest as their versatility and controllable characteristics bring new applications. [ 181 ] Excitingly, theoretical simulations and experiments have suggested the existence of ferroics in 2D SnSe.…”

Thermal fatigue crack initiation and propagation behaviors of GH3230 nickel‐based superalloy

“… where T represents the current temperature field (thermal loading condition), ρ denotes density, c represents specific heat, λ is the thermal conductivity and t represents time. Referring to the description of the physical properties of GH3230 nickel‐based superalloy in the material handbook, 27 the mechanical and thermal properties are almost isotropy. The boundary conditions are expressed as follows.…”

“…GH3230 nickel‐based superalloy was selected to conduct the thermal fatigue tests, which nominal chemical composition is presented in Table 1 27 . The density of the GH3230 superalloy is 8,934 kg/m 3 , and its material parameters are shown in Table 2 27 . Referring to Chinese Aviation Industry Standard HB 6660–2011, 28 a rectangular plate with the dimension of 50 mm × 20 mm × 2 mm containing a V‐notch was machined using GH3230 superalloy, as shown in Figure 1A.…”

“…GH3230 nickel‐based superalloy was selected to conduct the thermal fatigue tests, which nominal chemical composition is presented in Table 1 27 . The density of the GH3230 superalloy is 8,934 kg/m 3 , and its material parameters are shown in Table 2 27 .…”

“…27 The density of the GH3230 superalloy is 8,934 kg/m 3 , and its material parameters are shown in Table 2. 27 Referring to Chinese Aviation Industry Standard HB 6660-2011, 28 a rectangular plate with the dimension of 50 mm  20 mm  2 mm containing a V-notch was machined using GH3230 superalloy, as shown in Figure 1A. The radius of the V-notch arc was selected as 0.1 mm and its opening angle was selected as 60 .…”