Search for dissertations about: "Ga"

Showing result 21 - 25 of 322 swedish dissertations containing the word Ga.

  2. 21. Synthesis and characterization of Ga-containing MAX phase thin films

    Author : Andrejs Petruhins; Johanna Rosén; Per O A Persson; Erik Lewin; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The study of magnetic Mn+1AXn (MAX) phases (n = 1 − 3, M – a transition metal, A – an A group element, X – C or N) is a recently established research area, fuelled by theoretical predictions and first confirmed experimentally through alloying of Mn into the well-known Cr2AlC and Cr2GeC. Theoretical phase stability investigations suggested a new magnetic MAX phase, Mn2GaC, containing Ga which is liquid close to room temperature. READ MORE

  4. 22. Crystal structures and phase equilibria in the Mn-Ga system

    Author : Magnus Boström; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The Mn-Ga equilibrium phase diagram was reinvestigated. The phase analyses were performed both by powder and single crystal X-ray diffraction methods. READ MORE

  5. 23. Studies of genes involved in regulating flowering time in Arabidopsis

    Author : Maria Svensson; Högskolan i Skövde; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; flowering time; fold recognition; GA biosynthesis; promoter trapping; RNA-binding; T-DNA tagging; Biology; Biologi; Naturvetenskap; Natural sciences;

    Abstract : Transition from a vegetative growth phase to flowering in plants occurs in response to both environmental conditions and endogenous signals. Identification of genes that are involved in regulating the time of flowering is of great importance in agri- and horticulture. READ MORE

  6. 24. Spectroscopic Studies of the Elements Ba, Fe, Ga, In and Ru

    Author : Hans Karlsson; Enheten för fysikalisk och teoretisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fourier transform spectroscopy; branching fractions; oscillator strengths; term analysis; hyperfine structure; barium; gallium; iron; indium; Condensed matter:electronic structure; ruthenium.; magnetic and optical properties; electrical; spectroscopy; relaxation; magnetic resonance; supraconductors; egenskaper elektriska; Kondenserade materiens egenskaper:elektronstruktur; magnetiska och optiska ; supraledare; magnetisk resonans; spektroskopi; Astronomy; space research; cosmic chemistry; Astronomi; rymdvetenskap; kosmisk kemi; Fysicumarkivet A:2002:Karlsson;

    Abstract : New measurements of the elements Ba, Fe, Ga, In and Ru are reported. The analysis of barium contains new wavelengths, improved energy level values and new values of the ionization limit in both Ba I and Ba II. Oscillator strengths and radiative lifetimes in Fe II, as a part of the FERRUM project, are reported. READ MORE

  7. 25. Room-temperature defect-engineered spin functionalities in Ga(In)NAs alloys

    Author : Yuttapoom Puttisong; Weimin Chen; Irina Buyanova; Martin S. Brandt; Linköpings universitet; []
    Keywords : ;

    Abstract : Semiconductor spintronics is one of the most interesting research fields that exploits both charge and spin properties for future photonics and electronic devices. Among many challenges of using spin in semiconductors, efficient generation of electron spin polarization at room temperature (RT) remains difficult. READ MORE