Search results

Multiphoton excitation of hot carriers generates multiexcitons that are probed as a function of the absolute number of photons absorbed. Standard assumptions of Auger recombination analyses fail for an average of 2 excitations.

Coherent folded acoustic phonons in a multilayered GaSb/InAs epitaxial heterostructure were generated by femtosecond laser pulses and studied by means of ultrafast x-ray diffraction. Coherent phonons excited simultaneously in the fundamental acoustic branch and the first back-folded branch were detected. This represents the first clear evidence for phonon branch folding based directly on the atomi

We have observed and investigated random telegraph noise in the photoluminescence (PL) from small InP quantum dots (QDs) in GaInP. Very few of the QDs exhibit switching between two states, which have similar total intensities, but distinctly different spectra. Usually, one of the states dominates at low excitation power and the other at high excitation power. The switching occurs on the time scale

In half-metallic systems, electronic conduction is mediated by a single spin species, offering enormous potential for spintronic devices. Here, using microscopic-area angle-resolved photoemission, we show that a spin-polarised two-dimensional hole gas is naturally realised in the polar magnetic semiconductor AgCrSe2 by an intrinsic self-doping at its CrSe2-terminated surface. Through comparison wi

RAMP-UP: Regenerative Medicine and Advanced Therapy Medicinal Products – United for PhD Excellence Curious about the RAMP-UP COFUND Doctoral Programme? Here you will find answers to the most common questions about eligibility, application steps, funding, mobility, and what it’s like to be part of a Europe-wide network of ATMP researchers. Eligibility & Application Q: Can I apply if I have not yet

https://www.stemcellcenter.lu.se/RAMP-UP/phd-applicants/frequently-asked-questions-faqs - 2026-07-17

The ternary system didodecyltrimethylammonium bromide, 1-decanol, and water forms an extended reversed continuous phase of cubic symmetry at 25 °C. The cubic phase belongs to the space group Im3m, as shown by small-angle X-ray experiments. We present extensive deuterium NMR relaxation data from this cubic phase for 1-decanol, deuterated at the carbon adjacent to the hydroxyl carbon position. 2H sp

Climate change can strongly affect renewable energy production. The state of the art in projecting future renewable energy generation has focused on using regional climate prediction. However, regional climate prediction is characterized by inherent uncertainty due to the complexity of climate models. This work provides a comprehensive study to quantify the impact of climate uncertainties in proje

Street Artivism on Athenian Walls – A cognitive semiotic analysis of metaphor and narrative in street art Street Artivism on Athenian Walls – A cognitive semiotic analysis of metaphor and narrative in street art Published 26 May 2021 How do Athenian street artists use creativity in activism or activism in their creative practices to construct forms of protest and resistance? What kinds of strategi

https://www.sol.lu.se/en/article/street-artivism-on-athenian-walls-a-cognitive-semiotic-analysis-of-metaphor-and-narrative-in-street-art/ - 2026-07-16

Water particle orbits are key elements in the Lagrange wave formulation. The stochastic Miche implementation of the Lagrange model is a linear Gaussian two-dimensional or three-dimensional space–time model which exhibits typical nonlinear wave characteristics when transformed to Eulerian coordinates. This paper investigates the statistical relation between the degree of front–back asymmetry of ind

The aim of this thesis is to explore how religious practices of the immigrants are shaped after migrating to a more secular country. As a more concrete case, I am interested in the religious practices of Turkish immigrants in Sweden. For the purposes of the study fourteen semi-structured interviews with first generation Turkish immigrants in Malmö were conducted to investigate the changes in relig

One extra chromosome copy (i.e., trisomy) is the most common type of chromosome aberration in cancer cells. The mechanisms behind the generation of trisomies in tumor cells are largely unknown, although it has been suggested that dysfunction of the spindle assembly checkpoint (SAC) leads to an accumulation of trisomies through failure to correctly segregate sister chromatids in successive cell div

During recent years, Maxwell’s demon has regained interest in the work of understanding the connection between thermodynamics and information theory. This thesis presents transport properties of electrons in a double quantum dot system operated by Maxwell’s demon. The demon transports electrons from a lower to higher chemical potential through a pump-like scheme without performing any net work on

In this work, we explored the photoinduced charge carriers dynamics rationalizing the photocatalytic oxidation of NO over N-doped Bi2O2CO3/graphene quantum dots composites(N-BOC/GQDs) via time-resolved photoluminescence (TRPL). Under visible light illumination, only GQDs can be photoexcited and inject electrons to N-BOC within 0.5 ns. Under UV light irradiation, the interfacial Z-scheme heterojunc

Using megahertz x-ray free electron laser imaging with x-ray pulses of ~25 femtoseconds and a machine-learning strategy, we have conducted comprehensive in situ imaging studies on the dynamics of cavitation bubble clouds in ultrasound fields at the SPB/SFX beamline of the European XFEL. The research unambiguously revealed the quasi-simultaneous implosion of multiple bubbles and simultaneous collap

Kompetenscentret AdTherM inriktar sig på analyser av termiska processer i industriella tillämpningar, inklusive termo- och elektrokemisk energiomvandling. De flesta utmaningar för industrin inom detta område är generiska och baseras på samma fysiska mekanismer. För att utveckla detta forskningsfält måste både experiment och modeller förbättras och samordnas. AdTherM är en plattform som är centreraAdTherM targets analyses of thermal processes in industrial applications, including thermo- and electrochemical energy conversion activities. Most challenges for the industry in this area are generic and based on the same physical mechanisms. To develop this field, both experiments and models need to be improved and coordinated. AdTherM is a platform centered around the models and methods used t

NanoLund är Lunds universitets centrum för forskning, utbildning och innovation inom nanovetenskap. Över 400 personer inom fakulteterna för teknik, naturvetenskap och medicin är verksamma i detta strategiska forskningsområde. Det finansieras av den svenska regeringen och är Sveriges största forskningsmiljö för nanovetenskap och nanoteknologi.

Under devisen ”A Great Place to do Nanoscience” vilNanoLund, the centre for research, education and innovation in nanoscience at Lund University, engages over 400 researchers, students and staff at the faculties of engineering, science and medicine. It is a strategic research area funded by the Swedish Government and Sweden’s largest research environment for nanoscience and nanotechnology.

Our ambition is to be a Great Place to do Nanoscience: