A5101706308- Semiconductor Quantum Structures and Devices
- Quantum and electron transport phenomena
- Bone Tissue Engineering Materials
- Nanowire Synthesis and Applications
- Advancements in Semiconductor Devices and Circuit Design
- Dental Implant Techniques and Outcomes
- Electronic and Structural Properties of Oxides
- Chalcogenide Semiconductor Thin Films
- Topological Materials and Phenomena
- Vibration Control and Rheological Fluids
- Semiconductor materials and interfaces
- Orthopaedic implants and arthroplasty
- Surface and Thin Film Phenomena
- Calcium Carbonate Crystallization and Inhibition
- Ultrasonics and Acoustic Wave Propagation
- Biological Control of Invasive Species
- Drilling and Well Engineering
- Advanced materials and composites
- Proteoglycans and glycosaminoglycans research
- Hydraulic and Pneumatic Systems
- Diverse Industrial Engineering Technologies
- Glycosylation and Glycoproteins Research
- Veterinary Orthopedics and Neurology
- Carbohydrate Chemistry and Synthesis
- Biocrusts and Microbial Ecology
Lund University
2003-2021
University of Basel
2019-2021
Maastricht University
2015
Dalarna University
2013
Uppsala University
1988-2013
Trinity College Dublin
2011
Bonesupport (Sweden)
2011
Stockholm University
1999-2005
Universitat Politècnica de Catalunya
2001-2003
Most of the research performed on calcium phosphate bone cements (CPBCs) has dealt with improvement cement formulations for new, demanding bone-filling applications. In particular, development injectable is real interest biomedical community. The aim this work was to study effect citric acid injectability and setting properties alpha-tricalcium phosphate-based cements. A comparative kinetic without relating hardening curves hydration rates using a mathematical approach. Citric behaved as...
The complete mitochondrial genomes of two reptiles, the common iguana (Iguana iguana) and caiman (Caiman crocodylus), were sequenced in order to investigate phylogenetic questions tetrapod evolution. addition species allows analysis reptilian relationships using data sets other than those including only fast-evolving species. crocodilian seem have evolved generally at a higher rate vertebrates. Phylogenetic analyses 2889 amino-acid sites from 35 supported bird-crocodile relationship, lending...
An injectable material consisting of calcium sulphate mixed with hydroxyapatite was investigated as a possible alternative to autograft in the restoration bone defects. The studied both vitro simulated body fluid (SBF) and vivo when implanted rat muscles into proximal tibiae rabbits. Variation strength weight during ageing SBF measured. Tissue response, resorption ingrowth were animal models. A good tissue response observed rabbit without inflammatory reactions or presence fibrous tissue....
We report electrical characterization of quantum dots formed by introducing pairs thin wurtzite (WZ) segments in zinc blende (ZB) InAs nanowires. Regular Coulomb oscillations are observed over a wide gate voltage span, indicating that WZ create significant barriers for electron transport. find direct correlation transport properties with dot length and corresponding growth time the enclosed ZB segment. The is made possible using method to extract lengths nanowire crystal phase directly from...
In this work we have developed InAs nanowire templates, with designed zinc blende and wurtzite segments, for selective growth of radial GaSb heterostructures using metal organic vapor phase epitaxy.
Abstract Calcium phosphate bone cements (CPBCs) represent a potential synthetic alternative to bone‐graft materials in surgery applications. CPBCs are biocompatible, bioresorbable, and slowly replaced by new vivo . However, do not develop macroporosity during setting that would allow fast ingrowth good osteointegration of the implant. For this reason, recent research has approached problem inducing inside cement without influencing its normal setting. In study, method for obtaining...
The widespread use of Au as a seed particle in the fabrication semiconductor nanowires presents fundamental limitation to potential incorporation such nanostructures into electronic devices. Although several other growth techniques have been demonstrated, alternative metals remains an underexplored but potentially very promising way influence properties resulting while simultaneously avoiding gold. In this Letter, we demonstrate Sn metal for GaAs grown by metal–organic vapor phase epitaxy....
We use crystal-phase tuning during epitaxial growth of InAs nanowires to create quantum dots with very strong confinement. A set gate electrodes are used reproducibly split the into even smaller pairs for which we can control populations down last electron. The double dots, parallel-coupled source and drain, show clear stable odd-even level pairing due spin degeneracy combination hard-wall barriers shallow interdot tunnel barriers, high single-particle excitation energies allow an order...
Abstract The superconducting proximity effect has recently attracted a renewed interest as the basis of topologically nontrivial states in materials with large spin–orbit interaction, protected boundary useful for quantum information technologies. However, spectroscopy these is challenging because limited control conventional tunnel barriers. Here we report electronic measurements gap semiconducting indium arsenide nanowire segment coupled to superconductor, using dots formed...
Silver antimonate, AgSb${O}_{3}$, in both its defective pyrochlore and ilmenite structural polymorphs, has been suggested as a possible candidate mixed metal oxide for use the photocatalytic splitting of water visible light. In this study, we report electronic-structure calculations, using standard hybrid density-functional-theory approaches, on forms AgSb${O}_{3}$ to fully characterize band structure composition valence conduction bands. Analysis properties optical absorption is also used...
We study spin transport in the one- and two-electron regimes of parallel-coupled double quantum dots (DQDs). The DQDs are formed InAs nanowires by a combination crystal-phase engineering electrostatic gating, with an interdot tunnel coupling ($t$) tunable one order magnitude. Large single-particle energy separations (up to 10 meV) $|g^*|$ factors ($\sim$10) enable detailed studies $B$-field-induced transition from singlet-to-triplet ground state as function $t$. In particular, we investigate...
The surface failure characteristics of different work roll materials, i.e. high speed steel, chromium iron and indefinite chill iron, used in the finishing stands a hot strip mill have been investigated using stereomicroscopy, three-dimensional optical profilometry, scanning electron microscopy energy-dispersive X-ray spectroscopy. results show that mechanisms rolls for rolling are very complex, involving plastic deformation, abrasive wear, adhesive mechanical- thermal-induced cracking,...
According to Swedish National Board of Health and Welfare statistics, a dramatic decrease in both the incidence mortality from acute myo-cardial infarction has been seen past two deca...
Abstract The crystal structure of a material has large impact on the electronic and properties such as band alignment, bandgap energy, surface energies. Au‐seeded III–V nanowires are promising structures for exploring these effects, since most materials they readily grow in either wurtzite or zinc blende structure. In III–Sb however, growth proven difficult. Therefore, other methods must be developed to achieve antimonides. For GaSb, theoretical predictions diverge significantly, but absence...
We present a comprehensive electrical characterization of an InAs/InP nanowire heterostructure, comprising two InP barriers forming quantum dot (QD), adjacent lead segments (LSs) and metallic contacts, demonstrate how to extract valuable quantitative information the QD. The QD shows very regular Coulomb blockade (CB) resonances over large gate voltage range. By analyzing resonance line shapes, we map evolution tunnel couplings from few many electron regime, with electrically tunable <1...
We report growth and characterization of a coupled quantum dot structure that utilizes nanowire templates for selective epitaxy radial heterostructures. The starting point is zinc blende InAs with thin segments wurtzite structure. These have dual roles: they act as tunnel barriers electron transport in the core, also locally suppress GaSb shell, resulting coaxial InAs-GaSb dots integrated electrical probes. parallel hosts spatially separated electrons holes interact due to type-II broken gap...
Hard turning of helical gear hubs produced from low-carbon alloyed steel with a bulk hardness HRC 35, and case hardened up to 60–63 PCBN tools was considered in this study. The workpieces after heat treatment are characterized by non-uniform thickness the surface layer which results high variation measured hardness. deviation microhardness is even greater (HV 314–742) due presence an oxidized that should be removed before measurements. When also considering workpiece run-out deviations...