Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Ponomareva, I. P."'
Rashba-Dresselhaus effects, which originate from spin-orbit coupling and allow for spin manipulations, are actively explored in materials following the pursuit of spintronics and quantum computing. However, materials that possess practically signific
Externí odkaz:
http://arxiv.org/abs/2407.14420
Autor:
Kashikar, Ravi, Valdespino, Arlies, Ogg, Charlton, Uppgard, Edvin, Lisenkov, S., Ponomareva, I.
Ferroelectricity has recently been demonstrated in germanium-based inorganic halide perovskites. We use atomistic first-principles-based simulations to study ultra-thin CsGeBr$_3$ films with thicknesses of 4-18 nm and develop a theory for ferroelectr
Externí odkaz:
http://arxiv.org/abs/2404.04144
First-principles-based atomistic simulations are used to reveal ferroelectric phases and phase transitions induced in a semiconductor ferroelectric, CsGeBr$_3$, by external loads: hydrostatic pressure, uniaxial and biaxial stresses, and misfit strain
Externí odkaz:
http://arxiv.org/abs/2403.10421
Spin splitting, or removal of spin degeneracy in the electronic energy band/level is often a measure of spin-orbit coupling strength and a way to manipulate spin degrees of freedom. We use first-principles simulations to predict giant spin splitting
Externí odkaz:
http://arxiv.org/abs/2403.10035
Autor:
Kashikar, Ravi, DeTellem, D., Ghosh, P. S., Xu, Yixuan, Ma, S., Witanachchi, S., Phan, Manh-Huong, Lisenkov, S., Ponomareva, I.
Hybrid organic-inorganic perovskites are famous for the diversity of their chemical compositions, phases and phase transitions, and associated physical properties. We use a combination of experimental and computational techniques to reveal strong cou
Externí odkaz:
http://arxiv.org/abs/2312.17352
Recently ferroelectricity has been demonstrated in the family of halide perovskites: CsGeX$_3$ (X=Cl, Br, I). We develop a first-principles-based computational approach to probe finite-temperature properties of \cgb. Our computations reveal the exist
Externí odkaz:
http://arxiv.org/abs/2306.04033
Machine learning has been establishing its potential in multiple areas of condensed matter physics and materials science. Here we develop and use an unsupervised machine learning workflow within a framework of first-principles-based atomistic simulat
Externí odkaz:
http://arxiv.org/abs/2212.14087
Persistent spin textures are highly desirable for applications in spintronics as they may allow for long carrier spin lifetimes. However, they are also rare as only four point groups can host such textures, and even for these four groups, the emergen
Externí odkaz:
http://arxiv.org/abs/2211.12605
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