| 11. |
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| 12. |
- Ivanov, Sergey A., et al.
(författare)
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Temperature evolution of structural and magnetic properties of stoichiometric LiCu2O2 : Correlation of thermal expansion coefficient and magnetic order
- 2014
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Ingår i: Solid State Sciences. - : Elsevier BV. - 1293-2558 .- 1873-3085. ; 34, s. 97-101
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Tidskriftsartikel (refereegranskat)abstract
- Temperature-dependent crystallographic and magnetic studies on stoichiometric single crystals of LiCu2O2 are reported. The temperature dependence of the lattice parameters was extracted from X-ray powder diffractograms collected on crushed single crystals, from 12 K to 295 K. The magnetic properties are similar to earlier findings demonstrating antiferromagnetic ordering below 25 K. Evidence of magnetoelastic coupling is observed in the thermal expansion along the c-direction; not only at the low temperature antiferromagnetic transitions, but an anomalous behavior of the thermal expansion indicate magnetoelastic coupling also to the magnetic ordering related to a weak spontaneous magnetic moment appearing at 150 K. Ac-susceptibility measurements at different frequencies and superposed dc-fields are employed to further characterize this magnetic anomaly.
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| 13. |
- Lagerqvist, Ulrika, et al.
(författare)
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Synthesis and characterization of cobalt oxide and composite thin films
- 2014
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Ingår i: Advances in Materials. - : Science Publishing Group. - 2327-2503. ; 3:5, s. 52-57
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Tidskriftsartikel (refereegranskat)abstract
- Cobalt oxide and composite thin films were synthesized by spin-coating technique, followed by heating to 500°C in oxidizing, inert, or reducing atmospheres. Methanolic solutions of triethanolamine complexes of cobalt acetates and nitrates were spin-coated at 1000, 2000, and 3000 rpm. The influence of heating parameters and film thickness on the phase content of the films were investigated, using grazing incidence X-ray diffraction, X-ray reflectivity, and scanning electron microscopy. By tuning the synthesis parameters, Co3O4, CoO and Co films were obtained, as well as CoO-Co and Co3O4-CoO composite films of varying phase ratios.
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| 14. |
- Lindahl, Erik, et al.
(författare)
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Gas-Pulsed CVD for Film Growth in the Cu-Ni-N System
- 2012
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Ingår i: Chemical Vapor Deposition. - : Wiley. - 0948-1907 .- 1521-3862. ; 18:1-3, s. 10-16
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Tidskriftsartikel (refereegranskat)abstract
- A new ternary solid solution, Cu3-xNix+yN, is prepared by gas-pulsed CVD at 260 degrees C. Gas pulses of the precursor mixtures Cu(hfac)2+NH3 and Ni(thd)2+NH3, separated by intermittent ammonia pulses, are employed for the deposition of Cu3N and Ni3N, respectively. A few monolayers of the nitrides are grown in each CVD pulse and then mixed by diffusion to produce the solid solution. The metal content of the solid solution can be varied continuously from 100% to about 20% Cu, which means that the electrical properties can be varied from 1.6eV (band gap of Cu3N) to metallic (Ni3N). This is of interest for various applications, e.g., solar energy, catalysis, and microelectronics.
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| 15. |
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| 16. |
- Lindahl, Erik, et al.
(författare)
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In situ study of nickel formation during decomposition of chemical vapor deposition Ni3N films
- 2010
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Ingår i: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films. - : American Vacuum Society. - 0734-2101 .- 1520-8559. ; 28:5, s. 1203-1209
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Tidskriftsartikel (refereegranskat)abstract
- The thermal decomposition of Ni3N thin films, deposited by chemical vapor deposition on SrTiO3 (001) and Si (100) substrates, has been studied by in situ x-ray diffraction, as well as temperature-programed controlled gas emission in both inert and hydrogen atmospheres. The decomposition at inert atmosphere conditions starts at the film/substrate interface, which results in a high degree of ordering in the formed nickel film. In the H-2 atmosphere, the initial film ordering is less pronounced and the decomposition occurs from the film surface and downward. This means that by choosing the annealing atmosphere, inert or hydrogen, the formation of the Ni film can be localized to either the original nitride/substrate interface or to the surface of the nitride. The annealed films show a cube-on-cube growth with respect to the SrTiO3 (001) substrate. The film morphology after the annealing experiments resembles the one of the as-deposited films. The lowest resistivity value is measured for the films annealed in the H-2 atmosphere. (C) 2010 American Vacuum Society. [DOI: 10.1116/1.3478298]
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| 17. |
- Nehler, Therese, 1976-, et al.
(författare)
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Including non-energy benefits in investment calculations in industry - empirical findings from Sweden
- 2014
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Ingår i: ECEEE Industrial Summer Study, 2014. - 9789198048247 - 9789198048254 ; , s. 711-719
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Konferensbidrag (refereegranskat)abstract
- The threat of increased global warming accentuates the need for reducing anthropogenic emissions of GHG (Green House Gases). Improved energy efficiency in industry represents one of the most important means of reducing this threat. Furthermore, improved energy efficiency and cutting energy costs may be key factors for individual enterprises’ long term survival and success because of increased environmental legislation and rise of energy prices. Despite the fact that extensive potentials for improved energy efficiency exists in industry, a large part remains unexploited explained by the existence of various barriers to energy efficiency. The research on barriers is well-developed and regards the non-investment of cost-effective technical measures that improve energy efficiency. In these studies, the actual investment decision is the analysing variable. However, if one extends the system boundary, there are indications that not only the actual reduction of energy cost but also other potential benefits should be taken into account in energy-efficiency investments. Including such factors, named non-energy benefits (NEBs), in the investment calculation mean the investment may have a considerably shorter pay-back period. The aim of this paper is to study if NEBs are considered and measured in energy-efficiency related investments in Swedish industry, and to study factors inhibiting the inclusion of NEBs in investment calculations. Results of this study indicate that NEBs seems to exist in the Swedish industrial companies participating in this study, but only few of the mentioned NEBs were included in investment calculations, explained by among other factors, the hidden cost of monetizing the NEB.
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| 18. |
- Ottosson, Lars-Göran, et al.
(författare)
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Sulfate assimilation mediates tellurite reduction and toxicity in Saccharomyces cerevisiae
- 2010
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Ingår i: Eukaryotic Cell. - 1535-9778 .- 1535-9786. ; 9:10, s. 1635-1647
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Tidskriftsartikel (refereegranskat)abstract
- Despite a century of research and increasing environmental and human health concerns, the mechanistic basis of the toxicity of derivatives of the metalloid tellurium, Te, in particular the oxyanion tellurite, Te(IV), remains unsolved. Here, we provide an unbiased view of the mechanisms of tellurium metabolism in the yeast Saccharomyces cerevisiae by measuring deviations in Te-related traits of a complete collection of gene knockout mutants. Reduction of Te(IV) and intracellular accumulation as metallic tellurium strongly correlated with loss of cellular fitness, suggesting that Te(IV) reduction and toxicity are causally linked. The sulfate assimilation pathway upstream of Met17, in particular, the sulfite reductase and its cofactor siroheme, was shown to be central to tellurite toxicity and its reduction to elemental tellurium. Gene knockout mutants with altered Te(IV) tolerance also showed a similar deviation in tolerance to both selenite and, interestingly, selenomethionine, suggesting that the toxicity of these agents stems from a common mechanism. We also show that Te(IV) reduction and toxicity in yeast is partially mediated via a mitochondrial respiratory mechanism that does not encompass the generation of substantial oxidative stress. The results reported here represent a robust base from which to attack the mechanistic details of Te(IV) toxicity and reduction in a eukaryotic organism.
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| 19. |
- Ottosson, Mikael, et al.
(författare)
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Arbetsrehabilitering och myndighetssamverkan : Utvärdering av Samordningsförbundet i Svedala
- 2010
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Ett i den politiska debatten centralt område är arbetsrehabilitering. Inom detta område går det att se en ökad politisk aktivitet som många gånger mynnar ut i begreppet ”samverkan”. Ropet på samverkan beror möjligen på att det blir allt svårare för enskilda myndigheter att såväl överblicka som hantera sitt verksamhetsfält i takt med att omvärlden ter sig allt mer komplex. Föreliggande rapport bygger på en utvärdering av Samordningsförbundet i Svedala utförd av Mikael Ottosson och Niklas Sandell. Mikael Ottosson är historiker och verksam på Centrum för tillämpad arbetslivsforskning (CTA) vid Malmö högskola och Niklas Sandell är företagsekonom och verksam på Rådet för KommunalEkonomisk Forskning och Utbildning (KEFU) vid Lunds universitet. Utvärderingens primära syfte är att belysa Samordningsförbundet i Svedala som det såg ut vid slutet av 2009. Utvärderingen fokuserar fyra områden: syfte och mål, organisation, innehåll och effektivitet.
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| 20. |
- Ottosson, Mikael, 1980-, et al.
(författare)
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Configuring the 'industrial collective': : A controversy on the use of Swedish forests, 1989–2009
- 2011
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Ingår i: Paper presented at the 27th EGOS Colloquium Gothenburg 2011. ; , s. 1-31
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Konferensbidrag (refereegranskat)abstract
- We introduce a theoretical vocabulary highlighting a neglected area in industrial change theory, the outsider role. Industries cannot be fully examined without considering the influence of concerned groups, i.e. actors concerned with the industrial activity. Our empirical focus is a mature, stable, and highly homogeneous industrial sector, namely, the Swedish forest industry. We identify, analyse, and discuss the development and configuration of various truth claims and standpoints regarding the characteristics and potential uses of Sweden’s forest resources, 1989–2009. We follow the translation of the forest industry from producing solely pulp and paper products to producing electricity, heat, and bio-fuels. We argue that, without the pressure of concerned groups and ‘industrialists in the wild’ on the industry, forest industrial activity would never have been reconfigured.
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