Matching Items (38)
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- All Subjects: Chamber music
- Creators: Landschoot, Thomas
Description
In this research, our goal was to fabricate Josephson junctions that can be stably processed at 300°C or higher. With the purpose of integrating Josephson junction fabrication with the current semiconductor circuit fabrication process, back-end process temperatures (>350 °C) will be a key for producing large scale junction circuits reliably, which requires the junctions to be more thermally stable than current Nb/Al-AlOx/Nb junctions. Based on thermodynamics, Hf was chosen to produce thermally stable Nb/Hf-HfOx/Nb superconductor tunnel Josephson junctions that can be grown or processed at elevated temperatures. Also elevated synthesis temperatures improve the structural and electrical properties of Nb electrode layers that could potentially improve junction device performance. The refractory nature of Hf, HfO2 and Nb allow for the formation of flat, abrupt and thermally-stable interfaces. But the current Al-based barrier will have problems when using with high-temperature grown and high-quality Nb. So our work is aimed at using Nb grown at elevated temperatures to fabricate thermally stable Josephson tunnel junctions. As a junction barrier metal, Hf was studied and compared with the traditional Al-barrier material. We have proved that Hf-HfOx is a good barrier candidate for high-temperature synthesized Josephson junction. Hf deposited at 500 °C on Nb forms flat and chemically abrupt interfaces. Nb/Hf-HfOx/Nb Josephson junctions were synthesized, fabricated and characterized with different oxidizing conditions. The results of materials characterization and junction electrical measurements are reported and analyzed. We have improved the annealing stability of Nb junctions and also used high-quality Nb grown at 500 °C as the bottom electrode successfully. Adding a buffer layer or multiple oxidation steps improves the annealing stability of Josephson junctions. We also have attempted to use the Atomic Layer Deposition (ALD) method for the growth of Hf oxide as the junction barrier and got tunneling results.
ContributorsHuang, Mengchu, 1987- (Author) / Newman, Nathan (Thesis advisor) / Rowell, John M. (Committee member) / Singh, Rakesh K. (Committee member) / Chamberlin, Ralph (Committee member) / Wang, Robert (Committee member) / Arizona State University (Publisher)
Created2013
Description
In order to cope with the decreasing availability of symphony jobs and collegiate faculty positions, many musicians are starting to pursue less traditional career paths. Also, to combat declining audiences, musicians are exploring ways to cultivate new and enthusiastic listeners through relevant and engaging performances. Due to these challenges, many community-based chamber music ensembles have been formed throughout the United States. These groups not only focus on performing classical music, but serve the needs of their communities as well. The problem, however, is that many musicians have not learned the business skills necessary to create these career opportunities. In this document I discuss the steps ensembles must take to develop sustainable careers. I first analyze how groups build a strong foundation through getting to know their communities and creating core values. I then discuss branding and marketing so ensembles can develop a public image and learn how to publicize themselves. This is followed by an investigation of how ensembles make and organize their money. I then examine the ways groups ensure long-lasting relationships with their communities and within the ensemble. I end by presenting three case studies of professional ensembles to show how groups create and maintain successful careers. Ensembles must develop entrepreneurship skills in addition to cultivating their artistry. These business concepts are crucial to the longevity of chamber groups. Through interviews of successful ensemble members and my own personal experiences in the Tetra String Quartet, I provide a guide for musicians to use when creating a community-based ensemble.
ContributorsDalbey, Jenna (Author) / Landschoot, Thomas (Thesis advisor) / McLin, Katherine (Committee member) / Ryan, Russell (Committee member) / Solis, Theodore (Committee member) / Spring, Robert (Committee member) / Arizona State University (Publisher)
Created2013
ContributorsGronnier, Henry (Performer) / Ngwenyama, Nokuthula (Performer) / Landschoot, Thomas (Performer) / Dokshitsky, Rina (Performer) / ASU Library. Music Library (Publisher)
Created2017-04-02
ContributorsLandschoot, Thomas (Performer) / Marelli, Michele (Performer) / Millea, Joe (Performer) / Spring, Robert (Performer) / ASU Library. Music Library (Publisher)
Created2017-11-08
ContributorsJiang, Danwen (Performer) / McLin, Katherine (Performer) / Swartz, Jonathan (Performer) / Buck, Nancy (Performer) / Landschoot, Thomas (Performer) / Rotaru, Catalin (Performer) / Schuring, Martin (Performer) / Spring, Robert (Performer) / Pagano, Caio, 1940- (Performer) / ASU Library. Music Library (Publisher)
Created2006-03-26
ContributorsRyan, Russell (Performer) / Campbell, Andrew (Pianist) (Performer) / Buck, Nancy (Performer) / Cosand, Walter, 1950- (Performer) / Schuring, Martin (Performer) / FitzPatrick, Carole (Performer) / Landschoot, Thomas (Performer) / ASU Library. Music Library (Publisher)
Created2010-09-26
ContributorsGronnier, Henry (Performer) / Diener, Thomas (Performer) / Landschoot, Thomas (Performer) / Dokshitsky, Rina (Performer) / Rossetti Piano Quartet (Performer) / ASU Library. Music Library (Publisher)
Created2016-01-24
ContributorsMancuso, Simone (Director) / Ryan, Russell (Performer) / Landschoot, Thomas (Performer) / Arizona Contemporary Music Ensemble (Performer) / ASU Library. Music Library (Publisher)
Created2014-11-16
ContributorsMoeling, Robert (Performer) / Rosenthal, Paul (Performer) / Werff, Ivo-Jan van der (Performer) / Landschoot, Thomas (Performer) / ASU Library. Music Library (Publisher)
Created2015-01-25
ContributorsCardenes, Andres (Performer) / Landschoot, Thomas (Performer) / Chen, Wendy (Performer) / ASU Library. Music Library (Publisher)
Created2018-01-21