Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Accessing the Anisotropic Nonthermal Phonon Populations in Black Phosphorus

MPG-Autoren
/persons/resource/persons222712

Seiler,  Helene
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons195530

Zahn,  Daniela
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons246539

Zacharias,  Marios
NOMAD, Fritz Haber Institute, Max Planck Society;
Department of Mechanical and Materials Science Engineering, Cyprus University of Technology;

/persons/resource/persons206873

Hildebrandt,  Patrick-Nigel
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons138038

Vasileiadis,  Thomas
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons203272

Windsor,  Yoav William
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons245740

Qi,  Yingpeng
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21497

Ernstorfer,  Ralph
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)

2006.12873.pdf
(Preprint), 10MB

acs.nanolett.1c01786.pdf
(Verlagsversion), 7MB

Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Seiler, H., Zahn, D., Zacharias, M., Hildebrandt, P.-N., Vasileiadis, T., Windsor, Y. W., et al. (2021). Accessing the Anisotropic Nonthermal Phonon Populations in Black Phosphorus. Nano Letters, 21(14), 6171-6178. doi:10.1021/acs.nanolett.1c01786.


Zitierlink: https://hdl.handle.net/21.11116/0000-0006-A16E-9
Zusammenfassung
We combine ultrafast electron diffuse scattering experiments and first-principles calculations of the coupled electron–phonon dynamics to provide a detailed momentum-resolved picture of lattice thermalization in black phosphorus. The measurements reveal the emergence of highly anisotropic nonthermal phonon populations persisting for several picoseconds after exciting the electrons with a light pulse. Ultrafast dynamics simulations based on the time-dependent Boltzmann formalism are supplemented by calculations of the structure factor, defining an approach to reproduce the experimental signatures of nonequilibrium structural dynamics. The combination of experiments and theory enables us to identify highly anisotropic electron–phonon scattering processes as the primary driving force of the nonequilibrium lattice dynamics in black phosphorus. Our approach paves the way toward unravelling and controlling microscopic energy flows in two-dimensional materials and van der Waals heterostructures, and may be extended to other nonequilibrium phenomena involving coupled electron–phonon dynamics such as superconductivity, phase transitions, or polaron physics.