Sökning: "STO"

Visar resultat 6 - 10 av 32 avhandlingar innehållade ordet STO.

1. 6. Nano-patterning of two-dimensional electron gas at the interface between SrTiO3 and LaAlO3

   Författare :Pier Paolo Aurino; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Interfaces; q2DEG; Thin Films; Ar Ion Implantation.; LAO STO; Nano-Patterning; Complex Oxides;

   Sammanfattning : .... LÄS MER

3. 7. En förbindelse med en större värld : Postorder i Sverige under tidigt 1900-tal

   Författare :Charlotte Nilsson; Mediehistoria; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; mail order; media history; Åhlén Holm; advertising; catalogue; sales agency; media event; commercial literacy; Sweden; countryside; everyday life; early 20th century; infrastructure; postorder; mediehistoria; Åhlén Holm; annonsering; katalog; agentur; mediehändelse; infrastruktur; reklamkunnighet; Sverige; landsbygd; vardagsliv; tidigt 1900-tal;

   Sammanfattning : This thesis examines mail order in early 20th-century Sweden from the perspective of media history. Its aim is to study the mediated encounter between the foremost mail-order company in Sweden, Åhlén & Holm, and its audience, in order to answer the question of what this mediated link meant for the living conditions and conceptual worlds of the contemporary audience, as well as for the advancement of a Swedish consumer society. LÄS MER

4. 8. Microwave Frequency Stability and Spin Wave Mode Structure in Nano-Contact Spin Torque Oscillators

   Författare :Anders Eklund; B. Gunnar Malm; Johan Åkerman; Mikael Östling; Erik Wahlström; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spintronics; microwave oscillators; magnetization dynamics; spin waves; phase noise; device modelling; electrical characterization; X-ray microscopy; STXM; XMCD; Fysik; Physics; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The nano-contact spin torque oscillator (NC-STO) is an emerging device for highly tunable microwave frequency generation in the range from 0.1 GHz to above 65 GHz with an on-chip footprint on the scale of a few μm. LÄS MER

5. 9. CMOS High Frequency Circuits for Spin Torque Oscillator Technology

   Författare :Tingsu Chen; Ana Rusu; Jerzy Dabrowski; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microwave integrated circuit; CMOS; spin torque oscillator; Balun-LNA; wideband amplifier; on-chip bias-tee; multi-standard multi-band radios;

   Sammanfattning : Spin torque oscillator (STO) technology has a unique blend of features, including but not limited to octave tunability, GHz operating frequency, and nanoscaled size, which makes it highly suitable for microwave and radar applications. This thesis studies the fundamentals of STOs, utilizes the state-of-art STO's advantages, and proposes two STO-based microwave systems targeting its microwave applications and measurement setup, respectively. LÄS MER

7. 10. Tunable Filters based on Ferroelectrics and Semiconductor Varactors

   Författare :Anders Eriksson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High Temperature Superconductor HTS ; quality factor; tunable filter; phase transition; circular disc resonator; Cu BCB multilayer; KTaO3; ferroelectrics; dual mode filter; SrTiO3;

   Sammanfattning : Experimental investigation and development of tunable microwave filters, based on single crystals of SrTiO3 (STO) and KTaO3 (KTO), form the main work of this thesis. The dielectric properties of STO and KTO crystals are evaluated experimentally for a wide temperature range, with a DC bias, using parallel-plate resonators with High Temperature Superconductor (HTS) and normal metal (Cu) electrodes. LÄS MER