Sökresultat

We present spatial and dynamic information on the s = 1/2 distorted kagome antiferromagnet volborthite, Cu3V2O7(OD)(2) center dot 2D(2)O, obtained by polarized and inelastic neutron scattering. The instantaneous structure factor, S(Q), is dominated by nearest-neighbor pair correlations, with short-range order at wave vectors Q(1) = 0.65(3) angstrom(-1) and Q(2) = 1.15(5) angstrom(-1) emerging belo

Scanning tunneling microscopy (STM) and scanning tunneling luminescence were used to correlate the topography with the emission spectra from individual self-assembled, InP quantum dots (QDs). We have investigated in detail how the electric field induced by the STM tip affects the emission from the QDs. This was done when exciting a QD, by altering the bias for constant current, by altering the cur

In this Letter, we manipulate the phase shift of a Josephson junction using a parallel double quantum dot (QD). By employing a superconducting quantum interference device, we determine how orbital hybridization and detuning affect the current-phase relation in the Coulomb blockade regime. For weak hybridization between the QDs, we find π junction characteristics if at least one QD has an unpaired

Understanding piezotronic correlated carrier recombination behavior in quantum wells is essential for their applications. In this work, we have studied the influence of piezotronics on carrier recombination processes in single InGaN/GaN multiple quantum wells microwire (MQW-MW) by using steady-state and time-resolved spectroscopies. We conclude that mechanical strain induced piezotronics promotes

We report growth and characterization of a coupled quantum dot structure that utilizes nanowire templates for selective epitaxy of radial heterostructures. The starting point is a zinc blende InAs nanowire with thin segments of wurtzite structure. These segments have dual roles: they act as tunnel barriers for electron transport in the InAs core, and they also locally suppress growth of a GaSb she

Bacterial infections spanning from local wound infections, affecting patients with non-healing leg ulcers, postoperative wounds or burns, to severe infections and sepsis, are significant medical problems. Today's anti-infective treatments do not address the excessive activation of inflammatory pathways during infection and sepsis, and resistance problems are increasing. Hence, there is a huge unmBacterial infections spanning from local wound infections, affecting patients with non-healing leg ulcers, postoperative wounds or burns, to severe infections and sepsis, are significant medical problems. Today's anti-infective treatments do not address the excessive activation of inflammatory pathways during infection and sepsis, and resistance problems are increasing. Hence, there is a huge unm

What mechanism should be designed to allocate PhD applicants to universities in Sweden? We introduce the Swedish PhD admissions problem, and it is influenced by the college admissions problem (Gale and Shapley 1962) and the student placement problem (Balinski and Sönmez 1999). In order to “solve” this problem, we design a novel mechanism, namely the compromise algorithm. We propose three theorems

This report contains research summaries of the 17 PhD projects that were active at the Department of Automatic Control in June 1999.

This thesis investigates affective and semantic meaning-making in online audiovisual propaganda published by the Danish nationalist youth organization, Generation Identitær. Specifically, the study uses the notion of affective investments and relations in order to account for the ways in which the organization’s propaganda operates. It follows a feminist and postcolonial tradition and centers the

Centrum för III-nitridteknologi (C3NiT) - ett Vinnova-kompetenscentrum - är en plattform för att generera och utnyttja spetsforskning inom III-nitridhalvledare för nästa generations kraft- och högfrekvenselektronik, genom en kombination av vetenskaplig excellens och industriell relevans. C3NiT består av akademiska partners (Lunds universitet, Linköpings universitet och Chalmers tekniska högskola)The Centre for III-nitride technology (C3NiT) – a Vinnova Competence Centre – is a platform for generating and exploiting cutting-edge research in III-nitride semiconductors for the next generation of power and high frequency electronics, through a combination of scientific excellence and industrial relevance. C3NiT consists of the academic partners (Lund University, Linköping University and Chal

Bokhistorisk forskning kretsar kring boken och andra dokumenttyper som fysiska föremål och kring samspelet mellan individen, samhället och den grafiska kommunikationen i såväl äldre som modern tid. Tryckkulturens materiella och sociala historia, de grafiska teknikernas funktion och betydelse i empiriskt och historiskt såväl som teoretiskt hänseende samt bokens, bildens och typografins funktioner oBook history research encompasses the book and other document types as physical objects as well as the interaction between the individual, society and graphical communication through out history. The material and social history of print culture, and the function and significance of graphical techniques in empirical and historical as well as theoretical terms constitute key areas of the division’s

Bangkok is a multicultural metropolis where different cultures are exchanged and frequently in contact. The Chinese diaspora has settled in Bangkok for a long period of time. The intermarriage between the Thai and the Chinese has created a complex identity known as Sino-Thai for their descendants. This study aimed to explore the identity perception of the third generation Sino-Thai in Bangkok by a