Junjie He

Oct 17, 2024 | pubs.acs.org | Zhaobo Zhou |Yang Wu |Junjie He |Thomas Frauenheim

IntroductionClick to copy section linkSection link copied!Hot carriers (HCs) refer to charge carriers (electrons and holes) that acquire excess kinetic energy from external excitation, with hot electrons (HE) having energies above the conduction band minimum (CBM) and hot holes having energies below the valence band maximum (VBM).

Oct 17, 2024 | dx.doi.org | Zhaobo Zhou |Yang Wu |Junjie He |Thomas Frauenheim

IntroductionClick to copy section linkSection link copied!Hot carriers (HCs) refer to charge carriers (electrons and holes) that acquire excess kinetic energy from external excitation, with hot electrons (HE) having energies above the conduction band minimum (CBM) and hot holes having energies below the valence band maximum (VBM).

Sep 20, 2024 | pubs.acs.org | Zhaobo Zhou |Thomas Frauenheim |Junjie He |de Jong

The ultrafast manipulation of magnetization dynamics via laser pulses has emerged as a focal point within the realm of opto-spintronics in recent years, owing to its rapidity and low energy consumption. (1−5) The electromagnetic field inherent to laser pulses facilitates interactions with electronic degrees of freedom, eliciting charge excitations and indirectly coupling to spin, (6) thereby enabling regulation of magnetization dynamics.