Zobrazeno 1 - 10
of 1 854
pro vyhledávání: '"Dravid, Vinayak"'
Autor:
Kopas, Cameron J., Goronzy, Dominic P., Pham, Thang, Castanedo, Carlos G. Torres, Cheng, Matthew, Cochrane, Rory, Nast, Patrick, Lachman, Ella, Zhelev, Nikolay Z., Vallieres, Andre, Murthy, Akshay A., Oh, Jin-su, Zhou, Lin, Kramer, Matthew J., Cansizoglu, Hilal, Bedzyk, Michael J., Dravid, Vinayak P., Romanenko, Alexander, Grassellino, Anna, Mutus, Josh Y., Hersam, Mark C., Yadavalli, Kameshwar
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:
http://arxiv.org/abs/2408.02863
Palladium (Pd) catalysts have been extensively studied for the direct synthesis of H2O through the hydrogen oxidation reaction at ambient conditions. This heterogeneous catalytic reaction not only holds considerable practical significance but also se
Externí odkaz:
http://arxiv.org/abs/2404.14348
Autor:
Torres-Castanedo, Carlos G., Goronzy, Dominic P., Pham, Thang, McFadden, Anthony, Materise, Nicholas, Das, Paul Masih, Cheng, Matthew, Lebedev, Dmitry, Ribet, Stephanie M., Walker, Mitchell J., Garcia-Wetten, David A., Kopas, Cameron J., Marshall, Jayss, Lachman, Ella, Zhelev, Nikolay, Sauls, James A., Mutus, Joshua Y., McRae, Corey Rae H., Dravid, Vinayak P., Bedzyk, Michael J., Hersam, Mark C.
Superconducting Nb thin films have recently attracted significant attention due to their utility for quantum information technologies. In the processing of Nb thin films, fluoride-based chemical etchants are commonly used to remove surface oxides tha
Externí odkaz:
http://arxiv.org/abs/2404.04489
Autor:
Koo, Kunmo, Chellam, Nikhil S., Shim, Sangyoon, Mirkin, Chad A., Schatz, George C., Hu, Xiaobing, Dravid, Vinayak P.
In-situ environmental transmission electron microscopy (E-TEM) provides sub-Angstrom spatiotemporal information on nanoscale chemical transformations. However, the high-energy electron probe can significantly affect the surrounding medium's chemistry
Externí odkaz:
http://arxiv.org/abs/2402.17928
Autor:
Varnavides, Georgios, Ribet, Stephanie M., Zeltmann, Steven E., Yu, Yue, Savitzky, Benjamin H., Byrne, Dana O., Allen, Frances I., Dravid, Vinayak P., Scott, Mary C., Ophus, Colin
Scanning transmission electron microscopy (STEM) has been extensively used for imaging complex materials down to atomic resolution. The most commonly employed STEM modality, annular dark-field imaging, produces easily-interpretable contrast, but is d
Externí odkaz:
http://arxiv.org/abs/2309.05250
Autor:
San, Xingyuan, Hu, Junwei, Chen, Mingyi, Niu, Haiyang, Smeets, Paul J. M., Deng, Jie, Koo, Kunmo, Reis, Roberto dos, Dravid, Vinayak P., Hu, Xiaobing
Calcium carbonate (CaCO3), the most abundant biogenic mineral on earth, plays a crucial role in various fields. Of the four polymorphs, calcite, aragonite, vaterite, and amorphous CaCO3, vaterite is the most enigmatic one due to an ongoing debate reg
Externí odkaz:
http://arxiv.org/abs/2306.08228
Autor:
Bal, Mustafa, Murthy, Akshay A., Zhu, Shaojiang, Crisa, Francesco, You, Xinyuan, Huang, Ziwen, Roy, Tanay, Lee, Jaeyel, van Zanten, David, Pilipenko, Roman, Nekrashevich, Ivan, Lunin, Andrei, Bafia, Daniel, Krasnikova, Yulia, Kopas, Cameron J., Lachman, Ella O., Miller, Duncan, Mutus, Josh Y., Reagor, Matthew J., Cansizoglu, Hilal, Marshall, Jayss, Pappas, David P., Vu, Kim, Yadavalli, Kameshwar, Oh, Jin-Su, Zhou, Lin, Kramer, Matthew J., Lecocq, Florent Q., Goronzy, Dominic P., Torres-Castanedo, Carlos G., Pritchard, Graham, Dravid, Vinayak P., Rondinelli, James M., Bedzyk, Michael J., Hersam, Mark C., Zasadzinski, John, Koch, Jens, Sauls, James A., Romanenko, Alexander, Grassellino, Anna
Publikováno v:
npj Quantum Inf 10, 43 (2024)
We present a novel transmon qubit fabrication technique that yields systematic improvements in T$_1$ relaxation times. We fabricate devices using an encapsulation strategy that involves passivating the surface of niobium and thereby preventing the fo
Externí odkaz:
http://arxiv.org/abs/2304.13257
Autor:
Ribet, Stephanie M., Zeltmann, Steven E., Bustillo, Karen C., Dhall, Rohan, Denes, Peter, Minor, Andrew M., Reis, Roberto dos, Dravid, Vinayak P., Ophus, Colin
In a scanning transmission electron microscope (STEM), producing a high-resolution image generally requires an electron beam focused to the smallest point possible. However, the magnetic lenses used to focus the beam are unavoidably imperfect, introd
Externí odkaz:
http://arxiv.org/abs/2303.09693
Publikováno v:
Microscopy and Microanalysis, 2023
Material properties strongly depend on the nature and concentration of defects. Characterizing these features may require nano- to atomic-scale resolution to establish structure-property relationships. 4D-STEM, a technique where diffraction patterns
Externí odkaz:
http://arxiv.org/abs/2211.06511
Autor:
Murthy, Akshay A., Das, Paul Masih, Ribet, Stephanie M., Kopas, Cameron, Lee, Jaeyel, Reagor, Matthew J., Zhou, Lin, Kramer, Matthew J., Hersam, Mark C., Checchin, Mattia, Grassellino, Anna, Reis, Roberto dos, Dravid, Vinayak P., Romanenko, Alexander
Superconducting thin films of niobium have been extensively employed in transmon qubit architectures. Although these architectures have demonstrated remarkable improvements in recent years, further improvements in performance through materials engine
Externí odkaz:
http://arxiv.org/abs/2203.08710