Zobrazeno 1 - 10
of 60 295
pro vyhledávání: '"Electron–phonon coupling"'
Optically active defects often play a crucial role in governing the light emission as well as the electronic properties of materials. Moreover, defect-mediated states in the mid-gap region can trap electrons, thus opening a path for the recombination
Externí odkaz:
http://arxiv.org/abs/2501.00423
We propose a fully $ \textit{ab initio} $ approach to predicting thermal attenuation in elastic helium atom scattering amplitudes, validated through strong agreement with experiments on Nb(100) and (3$\times$1)-O/Nb(100) surfaces. Our results reveal
Externí odkaz:
http://arxiv.org/abs/2412.11305
Autor:
Waheed, Yunus, Shit, Sumitra, Surendran, Jithin T, Prasad, Indrajeet D, Watanabe, Kenji, Taniguchi, Takashi, Kumar, Santosh
Transition metal dichalcogenides and related layered materials in their monolayer and a few layers thicknesses regime provide a promising optoelectronic platform for exploring the excitonic- and many-body physics. Strain engineering has emerged as a
Externí odkaz:
http://arxiv.org/abs/2412.10114
Autor:
Fasahat, S., Fiuza-Maneiro, N., Schäfer, B., Xu, K., Gómez-Graña, S., Alonso, M. I., Polavarapu, L., Goñi, A. R.
So far, the striking sign reversal in the near-ambient slope of the gap temperature dependence of colloidal CsPbCl3 perovskite nanocrystals (NCs) compared to its Br counterpart, remains unresolved. Pure bromide NCs exhibit a linear gap increase with
Externí odkaz:
http://arxiv.org/abs/2411.13727
Autor:
Benítez, Pol, Chen, Siyu, Jiang, Ruoshi, López, Cibrán, Tamarit, Josep-Lluís, Íñiguez-González, Jorge, Saucedo, Edgardo, Monserrat, Bartomeu, Cazorla, Claudio
Silver chalcohalide antiperovskites (CAP), Ag$_{3}$XY (X = S, Se; Y = Br, I), are a family of highly anharmonic inorganic compounds with great potential for energy applications. However, a substantial and unresolved discrepancy exists between the opt
Externí odkaz:
http://arxiv.org/abs/2411.16279
Recent angle-resolved photoemission spectroscopy (ARPES) experiments on a kagome metal CsV$_3$Sb$_5$ revealed distinct multimodal dispersion kinks and nodeless superconducting gaps across multiple electron bands. The prominent photoemission kinks sug
Externí odkaz:
http://arxiv.org/abs/2411.07427
A one-third monolayer of the heavy metals Sn and Pb deposited on semiconductor substrates can lead to a $\sqrt{3}\times\sqrt{3}$ surface reconstruction, constituting an exciting triangular lattice material platform. A long history of experiments iden
Externí odkaz:
http://arxiv.org/abs/2409.17350
Autor:
Wu, Qi-Yi, Zhang, Chen, Li, Bai-Zhuo, Liu, Hao, Song, Jiao-Jiao, Chen, Bo, Liu, Hai-Yun, Duan, Yu-Xia, He, Jun, Liu, Jun, Cao, Guang-Han, Meng, Jian-Qiao
The quasiparticle relaxation dynamics of the iron-based superconductor CsCa$_2$Fe$_4$As$_4$F$_2$ ($T_c$ $\sim$ 29 K) were investigated using ultrafast optical spectroscopy. A pseudogap ($\Delta_{PG}$ $\approx$ 3.3 meV) was observed to open below $T^{
Externí odkaz:
http://arxiv.org/abs/2410.16610
Autor:
Nonato, A., Rodríguez-Hernández, Juan S., Abreu, D. S., Soares, C. C. S., Gómez, Mayra A. P., García-Fernández, Alberto, Señarís-Rodríguez, María A., andújar, Manuel Sánchez, Ayala, A. P., Paschoal, C. W. A., da Silva, Rosivaldo Xavier
Hybrid halide perovskites (HHPs) have attracted significant attention due to their remarkable optoelectronic properties that combine the advantages of low cost-effective fabrication methods of organic-inorganic materials. Notably, low-dimensional hyb
Externí odkaz:
http://arxiv.org/abs/2409.08259
We study the effect of electron-phonon coupling on the location of the Fermi Liquid to Wigner Crystal transition in the two-dimensional electron gas realized in various material platforms. Based on dimensional estimates of the relevant parameters, we
Externí odkaz:
http://arxiv.org/abs/2408.02653