Results 41 to 50 of about 78 (65)

Charge transport and excited states in organic semiconductors [PDF]

open access: yes, 2011
PhDOrganic semiconductors are of increasing technological interest in applications such as light emitting diodes, field effect transistors, and photovoltaic devices In order to reveal the basic principles behind these organic semiconductors, charge ...
Song, Jingyao
core  

Spectral evidence for a condensate of dark excitons in a trap [PDF]

open access: yes, 2016
Cotutela Universitat Politècnica de Catalunya i Université Pierre et Marie CurieSpatially indirect excitons, being composite bosons, are attractive candidates to explore correlated many-body systems. They possess an inherent large electric dipole, a four-
Beian, Mussie
core   +1 more source

Understand the Growth and Magnetic Ordering in Cuprate-Manganite Superconducting Sandwiches [PDF]

open access: yes, 2022
Between two pieces of bread is a world of unlimited possibilities to discover exciting new flavours. As scientists with access to advanced layering technologies, we procure our own sandwiches with atomic-level precision, creating thin-film multilayers ...
Chan, Andrew
core  

Degradation mechanisms in AlGaN/GaN HEMTs submitted to off and on-state stress conditions [PDF]

open access: yes, 2012
This paper describes a deep investigation of the degradation mechanisms induced by off-state and on-state stress in AlGaN/GaN HEMTs. Concerning reverse-bias degradation, results underline that the exposure to reverse-bias stress can induce (i) a ...
ZANONI, ENRICO   +3 more
core  

Des spectres à l'énergie totale : au-delà de l'approximation GW pour concevoir des interactions effectives. [PDF]

open access: yes
Le monde qui nous entoure est composé de systèmes à nombreuses particules interagissantes, ce qui est essentiel pour comprendre la nature de notre réalité.
El sahili, Abdallah
core   +6 more sources

Characterization of metallic and insulating properties of low-dimensional systems [PDF]

open access: yes, 2015
Dans cette thèse nous avons étudié des indicateurs visant à caractériser les propriétés métalliques ou isolantes de systèmes de basse dimensionnalité à partir de calculs théoriques basés sur la fonction d'onde.
El Khatib, Muammar
core  

Caractérisation des propriétés métalliques et isolantes pour des systèmes de basse dimensionalité [PDF]

open access: yes, 2015
Dans cette thèse nous avons étudié des indicateurs visant à caractériser les propriétés métalliques ou isolantes de systèmes de basse dimensionnalité à partir de calculs théoriques basés sur la fonction d'onde.
El Khatib, Muammar
core  

Etude des propriétés magnétiques des matériaux à bases des métaux de transition sous forme de poudre (AúBO¤) et monocristaux (RMX¥) [PDF]

open access: yes, 2012
The manuscript presents the work on the structural, electrical and magnetic materials manganites poly-crystalline manganites that have a growing industrial interest due to its many applications and the complexity of fundamental point of view, these ...
Issaoui, Fatma
core   +1 more source

Effect of sodium rich pretreatments and processing conditions on microstructure and property evolution of sodium cobalt oxide thermoelectric materials [PDF]

open access: yes, 2014
Global environmental and sustainability issues have led to a growth in interest in oxide based thermoelectric materials. Sodium cobalt oxide, which presents low toxicity, is one of the most promising p-type thermoelectric materials for high temperature ...
Jakubczyk, Ewa
core  

Effects of external fields and interfaces on the electronic and magnetic properties of oxide-based devices [PDF]

open access: yes, 2018
En el campo de la espintrónica, los efectos de ruptura de simetría en superficies e interfaces de heteroestructuras a base de óxidos continuan siendo de gran interés para la comunidad científica debido a que presentan una gran diversidad de fases ...
Carreira, Santiago José
core   +3 more sources

Home - About - Disclaimer - Privacy