Sökning: "ultrathin"

Visar resultat 6 - 10 av 52 avhandlingar innehållade ordet ultrathin.

1. 6. Processing and Properties of Ultrathin Perovskite Manganites

   Författare :Peter Johnsson; KTH; []
   Nyckelord :colossal magnetoresistance; thin films; thickness dependence;

   Sammanfattning : .... LÄS MER

3. 7. Synthesis and In Situ ToF-LEIS Analysis of Ultrathin Silicides and Ti-based Films

   Författare :Philipp Mika Wolf; Daniel Primetzhofer; Zhen Zhang; Eduardo Pitthan; Tuan Thien Tran; Anders Hallén; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ion scattering; in situ characterization; nickel silicide; ultrathin metal silicide; epitaxial silicide; surface analysis; titanium based films; high-resolution depth profiling;

   Sammanfattning : Thin films and coatings play a significant role in today’s society, with applications in electronics, optics, mechanics, and biomedicine. Further advancement in the field of surface coatings requires a good understanding of the unique features of ultrathin films and surfaces, which can only be reached with analysis techniques capable of resolving composition and morphology on a sub-nm scale. LÄS MER

4. 8. Spectroelectrochemistry with Ultrathin lon-Selective Membranes

   Författare :Yujie Liu; Gaston A. Crespo; Maria Cuartero; Alvaro Colina Santamaria; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ion-selective electrodes; electron-transfer and ion-transfer processes; spectroelectrochemistry; ultrathin membranes; thin-layer voltammetry; coulometry; Jonselektiva elektroder; elektronöverförings- och jonöverföringsprocesser; spektroelektrokemi; ultratunna membran; tunnskiktsvoltammetri; coulometri; Kemi; Chemistry;

   Sammanfattning : Rapid and decentralized chemical sensing strategies are highly demanded in contemporary society to monitor ongoing processes relevant to the environment, food analysis, healthcare, sports performance, etc. In this context, ion-selective electrodes (ISEs) based on polymeric membranes have emerged as a promising analytical technique owing to their features of low cost, portability, versatility, and energy efficiency. LÄS MER

5. 9. YBCO nanowires to study nanoscale ordering in High-Tc Superconductors

   Författare :Riccardo Arpaia; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; nanoscale ordering; nanoSQUIDs; nanowires; High-Tc superconductors; ultrathin films; oxygen doping; nanowire-based single photon detectors;

   Sammanfattning : We present the realization of YBa2Cu3O7-δ (YBCO) nanowires for both basic physics studies, which could help to elucidate the microscopic mechanisms of High critical Temperature Superconductors (HTS), and for novel applications.The first part of the thesis describes an improved nanopatterning procedure, based on e-beam lithography in combination with an amorphous carbon mask and a very gentle Ar+ ion etching. LÄS MER

7. 10. Reorienting the magnetic moment: XMCD and EXAFS on ultrathin films

   Författare :Cecilia Andersson; Uppsala universitet; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER