Results 41 to 50 of about 62,219 (286)

Watt-level continuous-wave antimonide laser diodes with high carrier-confined active region above 2.5 µm

Discover Nano
Thanks to high performance above room temperature, antimonide laser diodes have shown great potential for broad application in the mid-infrared spectral region.
Hongguang Yu, Chengao Yang, Yihang Chen, Tianfang Wang, Jianmei Shi, Juntian Cao, Zhengqi Geng, Zhiyuan Wang, Yu Zhang, Yingqiang Xu, Haiqiao Ni, Zhichuan Niu   +11 more
doaj   +1 more source

Tuning exciton energy and fine-structure splitting in single InAs quantum dots by applying uniaxial stress

AIP Advances, 2016
Exciton and biexciton emission energies as well as excitonic fine-structure splitting (FSS) in single InAs/GaAs quantum dots (QDs) have been continuously tuned in situ in an optical cryostat using a developed uniaxial stress device.
Dan Su, Xiuming Dou, Xuefei Wu, Yongping Liao, Pengyu Zhou, Kun Ding, Haiqiao Ni, Zhichuan Niu, Haijun Zhu, Desheng Jiang, Baoquan Sun   +10 more
doaj   +1 more source

Progress and Perspectives in Designing Flexible Microsupercapacitors

Micromachines, 2021
Miniaturized flexible microsupercapacitors (MSCs) that can be integrated into self-powered sensing systems, detecting networks, and implantable devices have shown great potential to perfect the stand-alone functional units owing to the robust security ...
La Li, Chuqiao Hu, Weijia Liu, Guozhen Shen   +3 more
doaj   +1 more source

Effects of anharmonic strain on phase stability of epitaxial films and superlattices: applications to noble metals

, 1997
Epitaxial strain energies of epitaxial films and bulk superlattices are studied via first-principles total energy calculations using the local-density approximation.
A. A. Saleh, A. Christensen, A. Fernández Guillermet, A. H. MacDonald, A. K. Schmid, A. Zunger, Alex Zunger, B. de Cremoux, C. Günther, C. Mottet, C. Nagl, C. P. Flynn, C. P. Wang, C. S. Chiang, C. S. L. Chun, C. T. Chan, C. Wolverton, C. Wolverton, C. Wolverton, D. B. Laks, D. D. Chambliss, D. D. Chambliss, D. G. O’Neill, D. J. Bottomley, D. L. Adams, D. M. Wood, D. M. Wood, D. M. Wood, D. M. Wood, D. O. Boerma, E. Bauer, E. C. Bain, E. G. McRae, E. I. Altman, E. Wigner, F. C. Larché, F. C. Larché, F. Gautier, G. Bozzolo, G. O. Pötschke, G. Vidali, H. Brune, H. Röder, H. Wormeester, I. Banerjee, I. P. Ipatova, I. P. Ipatova, J. B. Stringfellow, J. B. Stringfellow, J. B. Stringfellow, J. C. Hamilton, J. Hornstra, J. L. Stevens, J. Tersoff, J. W. Cahn, J. W. Cahn, K. Yang, L. Pleth Nielsen, L. Pleth Nielsen, M. A. Mueller, M. Sob, P. Alippi, P. Hohenberg, P. J. Craievich, P. J. Craievich, P. M. Marcus, R. G. Dandrea, R. Q. Hwang, R. Ramirez, S. Froyen, S. K. Kim, S. Rousset, S.-H. Wei, S.-H. Wei, S.-H. Wei, T. Kraft, V. G. Malyshkin, V. Ozoliņš, W. C. Johnson, W. E. Pickett, W. Kohn, W. P. Lowe, Y. Liu, Y.-R. Tzeng, Z. W. Lu   +84 more
core   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Transverse thermoelectric effect in La0.67Sr0.33MnO3|SrRuO3 superlattices

, 2015
Transverse thermoelectric effects in response to an out-of-plane heat current have been studied in an external magnetic field for ferromagnetic superlattices consisting of La0.67Sr0.33MnO3 and SrRuO3 layers.
Handa, Y., Kikkawa, T., Saitoh, E., Shiomi, Y.   +3 more
core   +1 more source

Response of Bose gases in time-dependent optical superlattices [PDF]

, 2006
The dynamic response of ultracold Bose gases in one-dimensional optical lattices and superlattices is investigated based on exact numerical time evolutions in the framework of the Bose-Hubbard model.
, , Braun-Munzinger K, Clark S R, Fallani L, Felix Schmitt, Gebhard F, Hild M Schmitt F Roth R, Markus Hild, Robert Roth, Roth R, Schmitt F Hild M Roth R   +11 more
core   +2 more sources

Statistical Theory of Superlattices [PDF]

Proceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, 1935
Abstract In a recent paper, Bragg and Williams have pointed out that the arrangement of the atoms in an alloy depends in a striking way on the temperature. At high temperatures, the atoms are distributed practically at random among the lattice points of the crystal, but at low temperatures a superlattice may be formed such that the ...
openaire   +1 more source

Record Energy Storage Performance Metrics in Ferroelectric Hafnia‐Based Films through Heterostructure Design

Advanced Functional Materials, EarlyView.
Dielectric capacitors typically struggle to achieve both high energy storage density and high efficiency at applied voltages below 10 V. Here, we address this challenge by introducing a novel hybrid fluorite/perovskite heterostructure design that combines ultra‐high recoverable energy storage density with efficient energy release (Uf ≈ 1016 J/cm3), at ...
Ampattu R. Jayakrishnan, Nuno Estrócio, Inês Silva, Raluca Negrea, Marian C. Istrate, Koppole C. Sekhar, Luís Marques, Judith L. MacManus‐Driscoll, Ignasi Fina, Florencio Sánchez, José P. B. Silva   +10 more
wiley   +1 more source

Quantum interference between dark-excitons and zone-edged acoustic phonons in few-layer WS2

Nature Communications, 2023
Here, the authors investigate the Raman spectra of few-layered WS2 when the excitation energy is in resonance with the dark exciton, and observe a Fano resonance between dark excitonsand zone-edge acoustic phonons.
Qing-Hai Tan, Yun-Mei Li, Jia-Min Lai, Yu-Jia Sun, Zhe Zhang, Feilong Song, Cedric Robert, Xavier Marie, Weibo Gao, Ping-Heng Tan, Jun Zhang   +10 more
doaj   +1 more source