Exact solution of electronic transport in semiconductors dominated by scattering on polaronic impurities

Znanstveni rad - Izvorni znanstveni rad

• Autor: Juraj Krsnik
• Autor: Ivo Batistić
• Autor: Anja Marunović
• Autor: Eduard Tutiš
• Autor: Osor Slaven Barišić
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

The scattering of electrons on impurities with internal degrees of freedom is bound to produce the signatures of the scatterer's own dynamics and results in nontrivial electronic transport properties. Previous studies of polaronic impurities in low-dimensional structures, like molecular junctions and one-dimensional nanowire models, have shown that perturbative treatments cannot account for a complex energy dependence of the scattering cross section in such systems. Here we derive the exact solution of polaronic impurities shaping the electronic transport in bulk (3D) systems. In the model with a short-ranged electron-phonon interaction, we solve for and sum over all elastic and inelastic partial cross sections, abundant in resonant features. The temperature dependence of the charge mobility shows the power-law dependence, μ(T)∝T^−ν, with ν being highly sensitive to impurity parameters. The latter may explain nonuniversal power-law exponents observed experimentally, e.g., in high-quality organic molecular semiconductors.

• Ključne riječi (engleski): polaronic impurities; transport
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review B (condensed matter and materials physics)
• Brojčani podaci: vol. 102, br. 24, 241111(R)
• p-ISSN: 2469-9950
• e-ISSN: 2469-9969
• DOI: https://doi.org/10.1103/PhysRevB.102.241111
• URN:NBN: urn:nbn:hr:217:793160
• Datum objave publikacije: 2020
• Projekt: Šifra: IP-2016-06-7258; Naziv (hrvatski): Fizika mnogočestičnih sustava - iskorištavanje svijeta kompleksnosti; Kratica: COMPLEX_ORBIS; Voditelj: Osor-Slaven Barišić; Pravna nadležnost: Hrvatska; Financijer: HRZZ; Linija financiranja: IP
• URL dokumenta: http://bib.irb.hr/1098778
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: © 2020 American Physical Society. Received 31 July 2020; Revised 19 November 2020; Accepted 30 November 2020; Published 17 December 2020.
• Datum i vrijeme pohrane: 2023-04-03 19:58:40