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pro vyhledávání: '"Pengke Li (李鹏科)"'
Autor:
Pengke Li (李鹏科)
Contrary to empirical observations, lowest-order $k\cdot\hat{p}$ theory predicts that monolayer black phosphorus ("phosphorene") is completely immune to zigzag-polarized optical excitation at the bandgap energy. Using symmetry arguments, we derive a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a403c21e168c8f232671b4869d50ed9a
Autor:
Pengke Li (李鹏科), Ian Appelbaum
Publikováno v:
Physical Review B. 97
As previously explored with sophisticated computational methods, projecting out incomplete components of Bloch wave functions yields `states' that appear to be `spin polarized'. Here, the consequences and physical relevance of this so-called hidden s
Autor:
Pengke Li (李鹏科), Ian Appelbaum
Publikováno v:
Physical Review B. 94
The electronic structure of crystalline materials reflects the influence of underlying discrete symmetries of the atomic lattice. When these symmetries are broken, associated degeneracies in the spectrum of states often split, with important conseque
Autor:
Pengke Li (李鹏科), Ian Appelbaum
Publikováno v:
Physical Review Applied. 5
In many semiconductors, weak spin-orbit coupling to the environment thwarts spin-state decoherence, allowing long bit lifetimes and thus long-distance spin transport in logic devices. However, this long lifetime also sets a stringent---and relatively
Autor:
Pengke Li (李鹏科), Ian Appelbaum
Several recent experiments on three-dimensional topological insulators claim to observe a large charge current-induced non-equilibrium ensemble spin polarization of electrons in the helical surface state. We present a comprehensive criticism of such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa52c8aadd8b05a667160d90f9c226c8