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It is well known that ion irradiation can be successfully used to reproduce microstructural features triggered by neutron irradiation. Even though the irradiation process brings many benefits, it is also associated with several drawbacks.…

Materials Science · Physics 2023-04-25 A. Zaborowska , Ł. Kurpaska , E. Wyszkowska , A. Azarov , M. Turek , A. Kosińska , M. Frelek-Kozak , J. Jagielski

This work presents conclusive observations about the long lasting topic of eumelanins' electronic vs. ionic conduction, allowing to access unprecedented conductivity of this mammal pigment. Key strengths of the study include, the easy…

A detailed comparison is presented of the temperature dependence of the conductivity of dilute, strongly interacting electrons in two-dimensional silicon inversion layers in the metallic regime in the presence and in the absence of a…

Strongly Correlated Electrons · Physics 2009-11-10 Yeekin Tsui , S. A. Vitkalov , M. P. Sarachik , T. M. Klapwijk

Boron implantation with in-situ dynamic annealing is used to produce highly conductive sub-surface layers in type IIa (100) diamond plates for the search of a superconducting phase transition. Here we demonstrate that high-fluence MeV…

Materials Science · Physics 2016-06-21 L. H. Willems van Beveren , R. Liu , H. Bowers , K. Ganesan , B. C. Johnson , J. C. McCallum , S. Prawer

Precise control of the conductivity of semiconductors through doping has enabled the creation of advanced electronic devices, similarly, the ability to control the conductivity in oxides can enable novel advanced electronic and…

Applied Physics · Physics 2019-02-20 Simone Bianconi , Min-Su Park , Hooman Mohseni

We investigated the electrical conductivity of platinum nanowires with heights ranging from 2 nm to 200 nm, deposited by focused electron beam induced deposition (FEBID). Post-deposition processing was employed to enhance the electrical…

Mesoscale and Nanoscale Physics · Physics 2026-01-21 Rajendra Rai , Ujjwal Dhakal , Binod DC , Yoichi Miyahara

Amorphous alumina is employed ubiquitously as a high-dielectric-constant material in electronics, and its thermal-transport properties are of key relevance for heat management in electronic chips and devices. Experiments show that the…

Materials Science · Physics 2023-12-27 Angela F. Harper , Kamil Iwanowski , William C. Witt , Mike C. Payne , Michele Simoncelli

A new Sesame-type table for the electrical conductivity of aluminum is described. The table is based on density functional theory calculations and ranges from 0.001 to 1 times solid density (2.7 g/cm^3 ), and from 0.01 to 1000 eV in…

Plasma Physics · Physics 2020-04-22 C. E. Starrett , R. Perriot , N. R. Shaffer , T. Nelson , L. A. Collins , C. Ticknor

In this study structural and mechanical properties of a 1 um thick Al2O3 coating, deposited on 316L stainless steel by Pulsed Laser Deposition (PLD), subjected to high energy ion irradiation were assessed. Mechanical properties of pristine…

We have fabricated Pt-containing granular metals by focused electron beam induced deposition from the $(CH_3)_3CH_3C_5H_4Pt$ precursor gas. The granular metals are made of platinum nanocrystallites embedded in a carbonaceous matrix. We have…

Materials Science · Physics 2015-05-27 F. Porrati , R. Sachser , C. H. Schwalb , A. S. Frangakis , M. Huth

Further development of nuclear power plant technology relies heavily on materials durability under operating conditions. Estimating the materials performance in the operando tests is crucial. In this paper, the mechanical behavior of thin…

Pure metals (Cu, Ti, Zr, V, Pd) and diluted Pd-alloys (Pd-Ag, Pd-Pt, Pd-Ru, Pd-Rh) were implanted by 25 keV deuterium ions at fluences in the range (1.2{\div}2.3)x1022 D+/m2. The post-treatment depth distributions of deuterium ions were…

Therapeutic ultrasound for brain stimulation has increased in the last years. This energy has shown promising results for treating Alzheimers disease, Parkinsons disease, and traumatic brain injury, among other conditions. However, the…

We have varied the disorder in a two-dimensional electron system in silicon by applying substrate bias. When the disorder becomes sufficiently low, we observe the emergence of the metallic phase, and find evidence for a metal-insulator…

Strongly Correlated Electrons · Physics 2009-10-30 Dragana Popovic , A. B. Fowler , S. Washburn

Gallium oxide and in particular its thermodynamically stable \b{eta}-Ga2O3 phase is within the most exciting materials in research and technology nowadays due to its unique properties, such as an ultra-wide band gap and a very high…

We simulate bulk materials under strong currents by following in real-time the dynamics of the electrons under an electric field. By changing the intensity of the electric field, our method can model, for the first time, non-linear effects…

Materials Science · Physics 2017-02-03 Xavier Andrade , Sebastien Hamel , Alfredo A. Correa

Lithium-ion batteries (LIBs) have become essential in modern energy storage; however, their performance is often limited by the stability and efficiency of their components, particularly the cathode and electrolyte. Transition metal layered…

Materials Science · Physics 2025-07-15 M. D. Hashan C. Peiris , Michael Woodcox , Diana Liepinya , Robert Shepard , Hao Liu , Manuel Smeu

Microscopic devices are widely used in optomechanical experiments at the cutting-edge of precision experimental physics. Such devices often need to have high electrical conductivity but low reflectivity at optical wavelengths, which can be…

Optics · Physics 2024-11-22 Gautam Venugopalan , Giorgio Gratta

This paper considers the degradation of alumina and zirconia toughened alumina vs. alumina for hip implants. The materials are as assumed to be load bearing surfaces subjected to shocks in wet conditions. The load is a peak of force; 9 kN…

Medical Physics · Physics 2013-11-28 Juliana Uribe , Jean Geringer , Laurent Gremillard , Bruno Reynard

The results of XPS core-level and valence band measurements, photoluminescence spectra of a-SiO2 implanted by Zn-ions (E=30 keV, D=1*1017 cm^-2) and Density Functional Theory calculations of electronic structure as well as formation…

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