Concept

Schottky defect

Related publications (177)

Tailoring band gaps of insulators by adsorption at surface defects: Benzoic acids on NaCl surfaces

The adsorption of benzoic acid and its OH-substituted derivatives, namely, salicylic acid (SA) and parasalicylic acid on various NaCl surfaces has been investigated by density-functional theory with hybrid exchange-correlation functional. The ideal NaCl (1 ...

2009

Characterization of a-plane grown GaN on sapphire substrates by electron microscopy

Yadira Arroyo Rojas Dasilva

Gallium nitride (GaN) is one of the most interesting materials for devices applications such as blue light emitting diodes, laser diodes and high power and high temperature electronic applications, because of its large band gap (3.39 eV). Several growth te ...

EPFL2009

Effect of thermal expansion, electronic excitations, and disorder on the Curie temperature of Ni1-xCuxMnSb alloys

We demonstrate the importance of thermal effects such as temperature-induced electronic, magnetic and vibrational excitations, as well as structural defects in the first-principles calculations of the magnetic critical temperature of complex alloys using h ...

2009

Molecular dynamics simulation of radiation damage in bcc tungsten

Molecular dynamics simulations of collision cascades in pure tungsten are performed to assess the primary damage due to irradiation. For short-range interaction the universal potential is used [1], while for long-range interaction, three different embedded ...

Elsevier2009

Molecular dynamics simulation of radiation damage in bcc tungsten

Robin Schäublin

Molecular dynamics simulations of collision cascades in pure tungsten are performed to assess the primary damage due to irradiation. For short-range interaction the universal potential is used [J.F. Ziegler, J.P. Biersack, U. Littmark, The Stopping and Ran ...

Elsevier2009

Optimization of nanoelectronic systems' reliability under massive defect density using Cascaded R-fold modular redundancy

Alexandre Schmid, Yusuf Leblebici, Milos Stanisavljevic

The theoretical analysis of R-fold modular redundancy, cascaded R-fold modular redundancy and NAND multiplexing is presented and these fault-tolerant techniques are compared in terms of resistance to massive levels of defect density. Optimal cluster size a ...

2008

Relaxation processes of point defects in vitreous silica from femtosecond to nanoseconds

Majed Chergui, Frank van Mourik, Andrea Cannizzo, Wojciech Gawelda, Erwin Portuondo Campa, Andrea Callegari

The authors studied ultrafast relaxation of localized excited states at Ge-related O deficient centers in SiO2 using femtosecond transient-absorption spectroscopy. The relaxation dynamics exhibits a biexponential decay, which the authors ascribe to the dep ...

2008

Evaluation of toughness by finite fracture mechanics from crack onset strain of brittle coatings on polymers

Yves Leterrier, Grégory Tornare

Crack onset strain measurements of a confined layer in tension provide the means for layer toughness estimation. The procedure can be simplified if steady-state conditions prevail starting from the commencement of crack propagation, an assumption frequentl ...

Elsevier2008

Effect of irradiation on the microstructure and the mechanical properties of oxide dispersion strengthened low activation ferritic/martensitic steel

Nadine Baluc, Amuthan Ramar

Ferritic/martensitic (F/M) steels show good resistance to swelling and low damage accumulation upon irradiation relative to stainless steels. 0.3 wt% yttria particles were added to the F/M steel EUROFER 97 to produce oxide dispersion strengthened (ODS) ste ...

2007

Early stages of radiation damage in graphite and carbon nanostructures: A first-principles molecular dynamics study

Ursula Röthlisberger, Lothar Helm, Oleg Yazyev, Ivano Tavernelli

Understanding radiation-induced defect formation in carbon materials is crucial for nuclear technology and for the manufacturing of nanostructures with desired properties. Using first-principles molecular dynamics, we perform a systematic study of the none ...

2007

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