Sökning: "STO"

Visar resultat 11 - 15 av 32 avhandlingar innehållade ordet STO.

1. 11. Thin Films and Multilayers of Yba2Cu3O7-δ and Srtio3; Growth, Characterization, And secondary Phase Formation

   Författare :Niclas Edvardsson; Michael Karkut; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Sputter-deposited thin films and multilayers of YBa2Cu3O7-δ (YBCO) and SrTi03 (STO) have been grown and studied. Microstructure in general, and formation of secondary phases, in particular, have been studied in relation to growth conditions. LÄS MER

3. 12. Functional Interfaces in Epitaxial YBa2Cu3O7-δ with Artificial Grain Boundary Junctions

   Författare :Henrik Pettersson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The properties of superconducting devices based on grain boundaries in YBa2Cu3O7-δ (YBCO) thin films are determined by the atomic structure of the grain boundary plane. To obtain these devices based on single grain boundaries, biepitaxial fabrication techniques has been used. LÄS MER

4. 13. Spin momentum transfer effects for spintronic device applications

   Författare :Yan Zhou; Johan Åkerman; Daniel E. Bürgler; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spin Torque Oscillator; Giant Magnetoresistance; Tunneling Magnetoresistance; Magnetism; Magnetism;

   Sammanfattning : The recent discovery that a spin-polarized current can exert a large torque on a ferromagnet, through direct transfer of spin angular momentum, offers the possibility of electrical current controlled manipulation of magnetic moment in nanoscale magnetic device structures. This so-called spin torque effect holds great promise for two applications, namely, spin torque oscillators (STOs) for wireless communication and radar communication, and spin transfer torque RAM (STT-RAM) for data/information storage. LÄS MER

5. 14. High resolution microstructural characterization of oxide thin films and interfaces

   Författare :Nikolina Tuzla; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; oxides; Microstructure; TEM; thin films; interfaces; HAADF STEM; YSZ.; SrTiO3; 2DEG; LaAlO3; heterostructures;

   Sammanfattning : Oxide interfaces can introduce properties that are different compared to thecorresponding crystal bulk properties. The properties can be tuned by changing thestructure. It has become clear that these oxide interface systems are potentiallysuitable for future electronic devices with unique and tailored properties. LÄS MER

7. 15. Fate of perfluoroalkyl acids in the aquatic environment with a focus on mass balance studies

   Författare :Marko Filipovic; Urs Berger; Michael McLachlan; Crispin Halsall; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PFAA; PFOS; AFFF; tap water; ground water; WWTP; mass balance; atmospheric deposition; rivers; Baltic Sea; Applied Environmental Science; tillämpad miljövetenskap;

   Sammanfattning : Perfluoroalkyl substances (PFASs) are man-made chemicals. Their unique properties make them beneficial for a wide range of industrial and consumer product applications, such as in aqueous film forming foam (AFFF), durable water repellent clothing, hydraulic oils and food packaging materials. LÄS MER