Results 21 to 30 of about 62,219 (286)

The use of silicon-germanium superlattices for thermoelectric devices and microfabricated generators [PDF]

, 2016
Low dimensional structures such as superlattices have the potential to improve the thermoelectric properties of materials by engineering the scattering of phonons to reduce the thermal conductivity and therefore improve the thermeoelectric performance ...
Biagioni, Paolo, Brida, Daniele, Ferre Llin, Lourdes, Fischer, Marco, Frigerio, J.B.J., Frigerio, Jacopo, Gallacher, Kevin, Giliberti, Valeria, Isella, Giovanni, Mirando, Francesco, Ortolani, Michele, Paul, Douglas J., Pellegrini, Giovanni, Samarelli, Antonio   +13 more
core   +1 more source

Diffraction from Nanocrystal Superlattices

Nanomaterials, 2022
Diffraction from a lattice of periodically spaced crystals is a topic of current interest because of the great development of self-organised superlattices (SL) of nanocrystals (NC).
Antonio Cervellino, Ruggero Frison
doaj   +1 more source

Landau Diamagnetism and de Haas–van Alphen Oscillations, Formed in Single Crystals of Y₃Fe₅O₁₂, in Local Nanodimensional-Sized 2D Phase Separation Regions, Located inside Layered Domain Walls at Room Temperature and T = 77 K

Nanomaterials, 2023
This paper presents results of the magnetic dynamics study (the microwave power absorptions at the fixed frequencies during magnetic field sweeping) in samples of Y3Fe5O12 single crystals in the form of plates and spheres of various sizes, at frequencies
Boris Khannanov, Evgeny Golovenchits, Mikhail Shcheglov, Viktoriya Sanina   +3 more
doaj   +1 more source

Nonlinear dynamics of trions under strong optical excitation in monolayer MoSe2

Scientific Reports, 2018
By employing ultrafast transient reflection measurements based on two-color pump-probe spectroscopy, the population and valley polarization dynamics of trions in monolayer MoSe2 were investigated at relatively high excitation densities under near ...
Jialiang Ye, Tengfei Yan, Binghui Niu, Ying Li, Xinhui Zhang   +4 more
doaj   +1 more source

High-Power, High-Efficiency GaSb-Based Laser with Compositionally Linearly Graded AlGaAsSb Layer

Applied Sciences, 2023
We propose a novel graded AlGaAsSb layer growth method to achieve a super-linear interface by precisely controlling the cell temperature and valve position.
Yihang Chen, Chengao Yang, Tianfang Wang, Hongguang Yu, Jianmei Shi, Xiangbin Su, Yu Zhang, Youwen Zhao, Cunzhu Tong, Donghai Wu, Yingqiang Xu, Haiqiao Ni, Zhichuan Niu   +12 more
doaj   +1 more source

Phonon Universal Transmission Fluctuations and Localization in Semiconductor Superlattices with a Controlled Degree of Order [PDF]

, 1993
We study both analytically and numerically phonon transmission fluctuations and localization in partially ordered superlattices with correlations among neighboring layers. In order to generate a sequence of layers with a varying degree of order we employ
A. Garg, A. Garg, A.A. Abrikosov, A.A. Abrikosov, A.G. Aronov, D. Isaacson, D. Levine, D.C. Hurley, D.C. Hurley, Franco Nori, I.M. Lifshitz, J.W. Goodman, K. Ishii, K. Kono, N. Nishiguchi, N. Nishiguchi, N.G. Van Kampen, Norihiko Nishiguchi, O. Koblinger, P. Hoel, P.V. Santos, P.W. Anderson, R. Merlin, R. Merlin, R. Merlin, S. Hendricks, S. Tamura, S. Tamura, S. Tamura, S. Tamura, S. Washburn, Shin-ichiro Tamura, V. Narayanamurti, Y. Zhu, Z. Cheng   +34 more
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Phase transitions in Ising magnetic films and superlattices

, 1999
Within the framework of mean field theory, we examine the phase transitions in Ising magnetic films and superlattices. By transfer matrix method, we derive two general nonlinear equations for phase transition temperatures of Ising magnetic films and ...
Aguilera-Granja, Balcerzak, Barnás, Benyoussef, Benyoussef, Binder, Binder, Camley, Chen, Guo-Zhen Yang, Hai, Hinchey, Hinchey, Jiang, Ma, Mills, Morkowsky, Ortı́z-Saavedra, Rau, Rau, Saber, Saber, Sarmento, Sarmento, Sarmento, Shanlov, Shao-Hua Pan, Sy, Weller, Xiao-Guang Wang, Yariv, Zheng   +31 more
core   +1 more source

Chemically triggered formation of two-dimensional epitaxial quantum dot superlattices [PDF]

, 2016
Two dimensional superlattices of epitaxially connected quantum dots enable size-quantization effects to be combined with high charge carrier mobilities, an essential prerequisite for highly performing QD devices based on charge transport.
De Roo, Jonathan, Dendooven, Jolien, Detavernier, Christophe, Drijvers, Emile, Hens, Zeger, Infante, Ivan, Solano Minuesa, Eduardo, ten Brinck, Stephanie, Walravens, Willem   +8 more
core   +1 more source

Scalable photonic sources using two-dimensional lead halide perovskite superlattices [PDF]

, 2020
Miniaturized photonic sources based on semiconducting two-dimensional (2D) materials offer new technological opportunities beyond the modern III-V platforms.
Blülle, Balthasar, Chiu, Yu-Cheng, Jagielski, Jakub, Jordan, Lucie, Krumeich, Frank, Li, Yen-Ting, Ruhstaller, Beat, Santos, Elton J. G., Scullion, Declan, Shih, Chih-Jen, Solari, Simon F.   +10 more
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Topology, edge states, and zero-energy states of ultracold atoms in 1D optical superlattices with alternating onsite potentials or hopping coefficients

, 2017
One-dimensional superlattices with periodic spatial modulations of onsite potentials or tunneling coefficients can exhibit a variety of properties associated with topology or symmetry.
Chien, Chih-Chun, He, Yan, Kouachi, Said, Wright, Kevin   +3 more
core   +1 more source