Sökning: "Helmer Fjellvåg"

Hittade 2 avhandlingar innehållade orden Helmer Fjellvåg.

1. 1. The Structural Basis for Magnetic Order in New Manganese Compounds

   Författare :Therese Eriksson; Yvonne Andersson; Helmer Fjellvåg; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; Crystal structure; Magnetic structure; Manganese compounds; Transition metal silicides; Transition metal germanides; Magnetic frustration; Neutron powder diffraction; X-ray diffraction; Magnetisation measurements; DFT; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi;

   Sammanfattning : Materials with new or improved properties are crucial for technological development. To provide the foundation for future successful products, it is important to prepare and characterise new chemical compounds that could show unusual properties. LÄS MER

3. 2. Structural and Electrochemical Relations in Electrode Materials for Rechargeable Batteries

   Författare :Viktor Renman; Kristina Edström; Mario Valvo; Cesar Pay Gómez; Mats Johnsson; Helmer Fjellvåg; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; batteries; electrochemical energy storage; oxohalides; conversion; alloy; pyrosilicate; CuHCF; MnHCM; XRD; XANES; in operando; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Sammanfattning : Rechargeable batteries have already conquered the market of portable electronics (i.e., mobile phones and laptops) and are set to further enable the large-scale deployment of electric vehicles and hybrid electric vehicles in a not too distant future. LÄS MER