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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20260819T000158Z
UID:https://www.mpsd.mpg.de/events/7683/17178
DTSTART:20161121T130000Z
DTEND:20161121T140000Z
CLASS:PUBLIC
CREATED:20161116T111005Z
DESCRIPTION:Flexural and in-plane thermal fluctuations in crystalline membr
 anes affect the band structure of the carriers\, which has an effect on tr
 ansport properties as well as carrier density of states of 2D systems. I c
 onsider a specific example of one-layer black phosphorus\, which is a high
 ly anisotropic material\, and present our recent results on intrinsic carr
 ier mobility. In contrast to graphene\, where the mobility is determined b
 y two-phonon (flexural) scattering\, in black phosphorus one-phonon (in-pl
 ane) processes dominate. I also will show the results on DOS tail for hole
 s in black phosphorus that have quasi-one-dimensional dispersion (my /mx 
 » 1) and\, as a result\, an enhanced Van Hove singularity at the valence 
 band top. Interaction with flexural phonons results in smearing of this si
 ngularity and to an appearing of a tail in DOS in the gap. The material pa
 rameters are determined by ab initio GW calculations and then are used for
  quantitative estimation of the above-mentioned effects.\nSpeaker: Sergey 
 Brener
LAST-MODIFIED:20161116T113802Z
LOCATION:CFEL (Bldg. 99)\, Room: Seminar Room V\, O1.109
ORGANIZER;CN=Angel Rubio:mailto:
SUMMARY:MPSD Seminar: Sergey Brener - Some aspects of intrinsic electron-ph
 oton interaction in black phosphorus
URL;VALUE=URI:https://www.mpsd.mpg.de/events/7683/17178
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