WebApr 13, 2024 · 哈工大团队提出热电制冷材料新策略,成功开发70年来唯一可媲美商用碲化铋合金的新型制冷材料. 应用于通信、传感等领域的电子器件的性能和稳定性,会受到发热问题的严重制约。. 常规散热技术一般是利用水、空气等流体进行对流换热,但该技术并不适用于 ... WebOur Leaders. Atul Bhatia is the CEO, setting DSI Tech’s strategic direction and focusing on the development of financial strategies to support operational growth.. Vinu Luthra is the …
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WebJul 8, 2015 · We report on the controlled modification of relaxation parameters and magnetic moments of epitaxial Fe thin films through Dy doping. Ferromagnetic resonance measurements show that an increase of Dy doping from 0.1% to 5% gives a tripling in Gilbert damping, and more importantly a strongly enhanced anisotropic damping that can … WebJun 30, 2024 · Dy= 0.004 ML (corresponding to a surface density of 0.026 Dy atoms/nm2). (b) Experimental magnetization relaxation curve (dots) and corresponding exponential fit (line), recorded at B = 0.375 T [see black arrow in panel (a)] after saturation at B = 5 T (Dy M. 5edge, θ =60°, T = 2.5 K, Θ. Dy= 0.029 ML).
WebNanoparticles of CaSO 4: Dy with size around 25 nm, were synthesized by the chemical co-precipitation method for the purpose of high energy electron dosimetry.The nanocrytstalline samples were irradiated with 6 MeV energy electrons having fluence varied from 3 × 10 14 to 2 × 10 15 e/cm 2.The pre and post irradiated samples were characterized by the XRD, … WebMay 29, 2024 · of dY impurities on impurity-ligand distances. Although dy ions involve one unpaired electron and thus exhibit a relatively simple electronic structure, it is difficult to observe them in a cubic environment because of the Jahn-Teller theorem [17]. Wing to this fact, the final local geometry reached hy a dY ion placed in an ‘initial’
WebThe Dy4+/Dy3+ ratio can, in principle, be increased by preparing the material under highly oxidizing and Ba-rich conditions and co-doping with acceptor-like impurities; however, post- synthesis treatment may still be needed to realize a non-negligible Dy 4+ concentration. WebAbstract. A series of borate glasses of high optical quality with CaB 4 O 7:Tb, LiCaBO 3:Tb, CaB 4 O 7:Dy, and LiCaBO 3:Dy compositions containing 0.5 and 1.0 mol% Tb 2 O 3 and Dy 2 O 3 impurity compounds were obtained from corresponding polycrystalline compounds using standard glass technology. By electron paramagnetic resonance …
WebJun 1, 2024 · The concentration of impurity level is a crucial parameter in materials preparation, which affects the luminescence properties of materials. ... CaB 4 O 7:Dy, and LiCaBO 3:Dy compositions containing 0.5 and 1.0 mol% Tb 2 O 3 and Dy 2 O 3 impurity compounds were obtained from corresponding polycrystalline compounds using …
Web(RE = Ho, Dy) impurity peaks marked by a black square ( ), a black star (★), or a black diamond (♦) respectively. The obtained lattice parameters, the volume of the unit cell, and density are summarized in Table 1. As shown in Table 1, Dy substitution in the Ho site seems to strongly affect the bitter abstract nounWebDy) impurity peaks marked by a black square ( ), a black star (★), or a black diamond (♦) respectively. The obtained lattice parameters, the volume of the unit cell, and density are summarized in Table 1. Figure 1. Powder XRD patterns and lattice constant evolution for Ho 1-xDy xB 2 alloys. (a) XRD patterns of the obtained alloys. datasheet acerWebsingle crystals with Dy atoms changes the p-type conductivity to the n-type, suggesting that the Dy impurity acts as a donor in Bi 2 Te 3. From the Hall data, it follows that the doping of Bi 2 Te 3 single crystals with the Dy impurity provides an electron concentration of 3 × 1018 cm–3. In this case, upon doping bismuth telluride, dysprosium datasheet 93c86WebAccording recent study, chlorine-containing impurity is presumed to greatly influenced on OLED lifetime rather than non-chlorine containing impurity. By leveraging halogen … bitter about womenWebIn the Security Console, click Identity > Users > Manage Existing. Use the search fields to find the user that you want to edit. Some fields are case sensitive. Click the user that you … datasheet absWebDec 10, 2024 · A theoretical study of the local moment formation and of the magnetic hyperfine field at a non-magnetic s-p impurity, namely Cd, embedded in R Cd ( R = Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho and Er) compounds is reported. bitter acousticWebAbstract. A series of borate glasses of high optical quality with CaB 4 O 7:Tb, LiCaBO 3:Tb, CaB 4 O 7:Dy, and LiCaBO 3:Dy compositions containing 0.5 and 1.0 mol% Tb 2 O 3 … bitter albersloh ortho