Zobrazeno 1 - 10
of 514
pro vyhledávání: '"Matthew J Kramer"'
Autor:
David P. Pappas, Mark Field, Cameron J. Kopas, Joel A. Howard, Xiqiao Wang, Ella Lachman, Jinsu Oh, Lin Zhou, Alysson Gold, Gregory M. Stiehl, Kameshwar Yadavalli, Eyob A. Sete, Andrew Bestwick, Matthew J. Kramer, Josh Y. Mutus
Publikováno v:
Communications Materials, Vol 5, Iss 1, Pp 1-7 (2024)
Abstract Superconducting quantum bits (qubits) rely on ultra-thin, amorphous oxide tunneling barriers that can have significant inhomogeneities and defects as grown. This can result in relatively large uncertainties and deleterious effects in the cir
Externí odkaz:
https://doaj.org/article/d20a8d0740a34eadb18fb448e6af70b0
Autor:
Mustafa Bal, Akshay A. Murthy, Shaojiang Zhu, Francesco Crisa, Xinyuan You, Ziwen Huang, Tanay Roy, Jaeyel Lee, David van Zanten, Roman Pilipenko, Ivan Nekrashevich, Andrei Lunin, Daniel Bafia, Yulia Krasnikova, Cameron J. Kopas, Ella O. Lachman, Duncan Miller, Josh Y. Mutus, Matthew J. Reagor, Hilal Cansizoglu, Jayss Marshall, David P. Pappas, Kim Vu, Kameshwar Yadavalli, Jin-Su Oh, Lin Zhou, Matthew J. Kramer, Florent Lecocq, Dominic P. Goronzy, Carlos G. Torres-Castanedo, P. Graham Pritchard, Vinayak P. Dravid, James M. Rondinelli, Michael J. Bedzyk, Mark C. Hersam, John Zasadzinski, Jens Koch, James A. Sauls, Alexander Romanenko, Anna Grassellino
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-8 (2024)
Abstract We present a transmon qubit fabrication technique that yields systematic improvements in T 1 relaxation times. We encapsulate the surface of niobium and prevent the formation of its lossy surface oxide. By maintaining the same superconductin
Externí odkaz:
https://doaj.org/article/e2667e9866cd4486bc13a96591904d6d
Autor:
Gaoyuan Ouyang, Prashant Singh, Ranran Su, Duane D. Johnson, Matthew J. Kramer, John H. Perepezko, Oleg N. Senkov, Daniel Miracle, Jun Cui
Publikováno v:
npj Computational Materials, Vol 9, Iss 1, Pp 1-10 (2023)
Abstract Refractory multi-principal-element alloys (RMPEAs) exhibit high specific strength at elevated temperatures (T). However, current RMPEAs lack a balance of room-temperature (RT) ductility, high-T strength, and high-T creep resistance. Using de
Externí odkaz:
https://doaj.org/article/6ab3ec3a957146a7bc8a70d816fc0275
Autor:
Richard H. J. Kim, Joong M. Park, Samuel Haeuser, Chuankun Huang, Di Cheng, Thomas Koschny, Jinsu Oh, Cameron Kopas, Hilal Cansizoglu, Kameshwar Yadavalli, Josh Mutus, Lin Zhou, Liang Luo, Matthew J. Kramer, Jigang Wang
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-7 (2023)
Abstract The challenge underlying superconducting quantum computing is to remove materials bottleneck for highly coherent quantum devices. The nonuniformity and complex structural components in the underlying quantum circuits often lead to local elec
Externí odkaz:
https://doaj.org/article/d2bc0ce33b044a8ea0c48fbd7af50138
Autor:
Zachary P. Tener, Xubo Liu, Ikenna C. Nlebedim, Matthew J. Kramer, Michael A. McGuire, Michael S. Kesler
Publikováno v:
Metals, Vol 14, Iss 3, p 294 (2024)
We investigate the effect of an applied magnetic field on the entire HDDR process using a customized reactor vessel and a warm-bore superconducting magnet. We analyzed the resulting properties produced at both a 0 applied field and a 2 Tesla applied
Externí odkaz:
https://doaj.org/article/818d0cd880d6491f8b270b13c38249d0
Autor:
Sunil Ghimire, Kamal R Joshi, Amlan Datta, Aidan Goerdt, Makariy A Tanatar, Deborah Schlagel, Matthew J Kramer, Jayss Marshall, Cameron J Kopas, Joshua Y Mutus, Alexander Romanenko, Anna Grassellino, Ruslan Prozorov
Publikováno v:
Materials for Quantum Technology, Vol 4, Iss 4, p 045201 (2024)
The London penetration depth, $\lambda(T)$ , was measured in various forms of niobium, including foils, thin films, single crystals, and samples from superconducting radio-frequency (SRF) cavities. We observed a significant difference in $\lambda(T)$
Externí odkaz:
https://doaj.org/article/23779c3d161e4407bc141101276537a3
Autor:
Cameron J Kopas, Dominic P Goronzy, Thang Pham, Carlos G Torres Castanedo, Matthew Cheng, Rory Cochrane, Patrick Nast, Ella Lachman, Nikolay Z Zhelev, André Vallières, Akshay A Murthy, Jin-su Oh, Lin Zhou, Matthew J Kramer, Hilal Cansizoglu, Michael J Bedzyk, Vinayak P Dravid, Alexander Romanenko, Anna Grassellino, Josh Y Mutus, Mark C Hersam, Kameshwar Yadavalli
Publikováno v:
Materials for Quantum Technology, Vol 4, Iss 4, p 045101 (2024)
The performance of superconducting qubits is often limited by dissipation and two-level systems (TLS) losses. The dominant sources of these losses are believed to originate from amorphous materials and defects at interfaces and surfaces, likely as a
Externí odkaz:
https://doaj.org/article/e6e88d4a421f4fdc910803785b0e9e5c
Autor:
Sean W. Fackler, Vasileios Alexandrakis, Dennis König, A. Gilad Kusne, Tieren Gao, Matthew J. Kramer, Drew Stasak, Kenny Lopez, Brad Zayac, Apurva Mehta, Alfred Ludwig, Ichiro Takeuchi
Publikováno v:
Science and Technology of Advanced Materials, Vol 18, Iss 1, Pp 231-238 (2017)
Thin film libraries of Fe-Co-V were fabricated by combinatorial sputtering to study magnetic and structural properties over wide ranges of composition and thickness by high-throughput methods: synchrotron X-ray diffraction, magnetometry, composition,
Externí odkaz:
https://doaj.org/article/5ee7cd0cf87546b89fd57e068fe54da3
Autor:
Licong Peng, Ying Zhang, Min He, Bei Ding, Wenhong Wang, Huanfang Tian, Jianqi Li, Shouguo Wang, Jianwang Cai, Guangheng Wu, J. Ping Liu, Matthew J. Kramer, Bao-gen Shen
Publikováno v:
npj Quantum Materials, Vol 2, Iss 1, Pp 1-7 (2017)
Spintronics: Generation of magnetic biskyrmions by electric current Electric current can generate and control the density of magnetic biskyrmions in a centrosymmetric MnNiGa alloy at room temperature. Skyrmions are chiral spin textures whose spins po
Externí odkaz:
https://doaj.org/article/04be9ce12fe44e4ea06e59b3e0ae4135
Autor:
Aaron G. Kassen, Emma M. H. White, Liangfa Hu, Wei Tang, Lin Zhou, Matthew J. Kramer, Iver E. Anderson
Publikováno v:
AIP Advances, Vol 8, Iss 5, Pp 056206-056206-6 (2018)
An estimated 750,000 new hybrid electric and plug-in battery vehicles, most with permanent magnet synchronous alternating current (PMAC) drive motors, took to the road in 2016 alone. Accompanied by 40% year over year growth in the EV market significa
Externí odkaz:
https://doaj.org/article/3e4dcb79f48840599ee8597ef3fd4d12