Zobrazeno 1 - 10
of 221
pro vyhledávání: '"Crooker, Scott"'
Tuning the density of resident electrons or holes in semiconductors provides crucial insight into the composition of excitonic complexes that are observed as absorption or photoluminescence resonances in optical studies. Moreover, we can change the w
Externí odkaz:
http://arxiv.org/abs/2411.11790
Autor:
Yakovlev, Dmitri R., Crooker, Scott A., Semina, Marina A., Rautert, Janina, Mund, Johannes, Dirin, Dmitry N., Kovalenko, Maksym V., Bayer, Manfred
Cesium lead bromide (CsPbBr$_3$) is a representative material of the emerging class of lead halide perovskite semiconductors that possess remarkable optoelectronic properties. Its optical properties in the vicinity of the band gap energy are greatly
Externí odkaz:
http://arxiv.org/abs/2307.07035
Autor:
Du, Kai, Xu, Xianghan, Won, Choongjae, Wang, Kefeng, Crooker, Scott A., Rangan, Sylvie, Bartynski, Robert, Cheong, Sang-Wook
Publikováno v:
npj Quantum Materials volume 8, Article number: 17 (2023)
Antiferromagnetic states with no stray magnetic fields can enable high-density ultra-fast spintronic technologies. However, the detection and control of antiferromagnetic Neel vectors remain challenging. Linear magnetoelectric antiferromagnets (LMAs)
Externí odkaz:
http://arxiv.org/abs/2304.01513
Autor:
Junior, Paulo E. Faria, Naimer, Thomas, McCreary, Kathleen M., Jonker, Berend T., Finley, Jonathan J., Crooker, Scott A., Fabian, Jaroslav, Stier, Andreas V.
Publikováno v:
2D Materials 10, 034002 (2023)
The valley Zeeman physics of excitons in monolayer transition metal dichalcogenides provides valuable insight into the spin and orbital degrees of freedom inherent to these materials. Being atomically-thin materials, these degrees of freedom can be i
Externí odkaz:
http://arxiv.org/abs/2301.12234
Publikováno v:
Nature Materials 22, 305 (2023)
Magnetic proximity interactions (MPIs) between atomically-thin semiconductors and two-dimensional magnets provide a means to manipulate spin and valley degrees of freedom in nonmagnetic monolayers, without the use of applied magnetic fields. In such
Externí odkaz:
http://arxiv.org/abs/2206.09958
Autor:
Bian, Mengying, Zhu, Liang, Wang, Xiao, Choi, Junho, Chopdekar, Rajesh V., Wei, Sichen, Wu, Lishu, Huai, Chang, Marga, Austin, Yang, Qishuo, Li, Yuguang C., Yao, Fei, Yu, Ting, Crooker, Scott A., Cheng, Xuemei M, Sabirianov, Renat F., Zhang, Shengbai, Lin, Junhao, Hou, Yanglong, Zeng, Hao
Publikováno v:
Advanced Materials 2022, 2200117
Realizing van der Waals (vdW) epitaxy in the 80s represents a breakthrough that circumvents the stringent lattice matching and processing compatibility requirements in conventional covalent heteroepitaxy. However, due to the weak vdW interactions, th
Externí odkaz:
http://arxiv.org/abs/2203.12519
Autor:
Li, Xiangzhi, Jones, Andrew C., Choi, Junho, Zhao, Huan, Chandrasekaran, Vigneshwaran, Pettes, Michael T., Piryatinski, Andrei, Sinitsyn, Nikolai, Crooker, Scott A., Htoon, Han
Quantum light emitters (QEs) capable of generating single photons of well-defined circular polarization could enable non-reciprocal single photon devices and deterministic spin-photon interfaces critical for realizing complex quantum networks. To dat
Externí odkaz:
http://arxiv.org/abs/2203.00797
Publikováno v:
Phys. Rev. Lett. 129, 076801 (2022)
In the archetypal monolayer semiconductor WSe$_2$, the distinct ordering of spin-polarized valleys (low-energy pockets) in the conduction band allows for studies of not only simple neutral excitons and charged excitons (i.e., trions), but also more c
Externí odkaz:
http://arxiv.org/abs/2202.08375
Autor:
Ren, Lei, Lombez, Laurent, Robert, Cedric, Beret, Dorian, Lagarde, Delphine, Urbaszek, Bernhard, Renucci, Pierre, Taniguchi, Takashi, Watanabe, Kenji, Crooker, Scott A., Marie, Xavier
Using a spatially-resolved optical pump-probe experiment, we measure the lateral transport of spin/valley polarized electrons over very long distances (tens of micrometers) in a single WSe2 monolayer. By locally pumping the Fermi sea of 2D electrons
Externí odkaz:
http://arxiv.org/abs/2202.01050
In monolayer transition-metal dichalcogenide semiconductors, many-body correlations can manifest in optical spectra when photoexcited electron-hole pairs (excitons) are introduced into a 2D Fermi sea of mobile carriers. At low carrier densities, the
Externí odkaz:
http://arxiv.org/abs/2201.00780