Zobrazeno 1 - 10
of 213
pro vyhledávání: '"A. T. Charlie Johnson"'
Autor:
Chengyu Wen, Carl H. Naylor, Kevin P. O’Brien, Adedapo Oni, Mahmut S. Kavrik, Yeonjoon Suh, A. T. Charlie Johnson Jr.
Publikováno v:
APL Materials, Vol 12, Iss 9, Pp 091105-091105-8 (2024)
Layered transition metal dichalcogenide (TMD) materials have attracted great interest for applications in electronics. Here, we report a method to synthesize TMD materials at controlled locations with the desired layer number. Metal oxide precursors
Externí odkaz:
https://doaj.org/article/d9e8bb4262cb4b1a95736858f2c7aa57
Autor:
Nishal Shah, Vasant Iyer, Zhiping Zhang, Zhaoli Gao, Juhwan Park, Venkata Yelleswarapu, Firooz Aflatouni, A. T. Charlie Johnson, David Issadore
Publikováno v:
Microsystems & Nanoengineering, Vol 9, Iss 1, Pp 1-13 (2023)
Abstract The detection and analysis of rare cells in complex media such as blood is increasingly important in biomedical research and clinical diagnostics. Micro-Hall detectors (μHD) for magnetic detection in blood have previously demonstrated ultra
Externí odkaz:
https://doaj.org/article/bef15e708293477e9e18d9d5b84f074f
Autor:
Anis Chiout, Cléophanie Brochard-Richard, Laetitia Marty, Nedjma Bendiab, Meng-Qiang Zhao, A. T. Charlie Johnson, Fabrice Oehler, Abdelkarim Ouerghi, Julien Chaste
Publikováno v:
npj 2D Materials and Applications, Vol 7, Iss 1, Pp 1-8 (2023)
Abstract Nanomechanical resonators are built into phones, as filters or accelerometers, but they lack a knob to effectively tune the frequency at the nanoscale when it’s easy to tune on an octave the tone of a classical musical instrument like a gu
Externí odkaz:
https://doaj.org/article/3a5b107f274840918fd56e381dfb3e44
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-6 (2023)
Understanding and controlling symmetry in nature is of paramount importance. In this work, the authors reveal an unexpected effect of the general duality relation between piezoelectricity and piezomagnetism on their symmetries, enabling novel phononi
Externí odkaz:
https://doaj.org/article/99472cac64ab4adc9c4b227f4edab838
Autor:
Kelotchi S. Figueroa, Natalya A. Zimbovskaya, Nicholas J. Pinto, Chengyu Wen, A. T. Charlie Johnson
Publikováno v:
AIP Advances, Vol 12, Iss 7, Pp 075008-075008-8 (2022)
Charge transport in ferroelectric (FE) gated graphene far from the Dirac point (DP) was studied in the temperature range 300 K < T < 350 K. A non-monotonic/monotonic/non-monotonic behavior in the conductivity [σ(T)] was observed as one moved away fr
Externí odkaz:
https://doaj.org/article/0c0e831086534c7b969c374b6ebf862f
Autor:
Nicolette Driscoll, Richard E. Rosch, Brendan B. Murphy, Arian Ashourvan, Ramya Vishnubhotla, Olivia O. Dickens, A. T. Charlie Johnson, Kathryn A. Davis, Brian Litt, Danielle S. Bassett, Hajime Takano, Flavia Vitale
Publikováno v:
Communications Biology, Vol 4, Iss 1, Pp 1-14 (2021)
Driscoll, Rosch et al. design transparent graphene-based surface probes to achieve simultaneous electrophysiological recording and calcium imaging of epileptic seizures in mice. This method could be used to investigate circuit dynamics during seizure
Externí odkaz:
https://doaj.org/article/f932d6cf433744e78a90d1a0559256c2
Autor:
Zhaoli Gao, Sheng Wang, Joel Berry, Qicheng Zhang, Julian Gebhardt, William M. Parkin, Jose Avila, Hemian Yi, Chaoyu Chen, Sebastian Hurtado-Parra, Marija Drndić, Andrew M. Rappe, David J. Srolovitz, James M. Kikkawa, Zhengtang Luo, Maria C. Asensio, Feng Wang, A. T. Charlie Johnson
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
The semiconducting ABC configuration of trilayer graphene is more challenging to grow on large scales than its semimetallic ABA counterpart. Here, an approach to trilayer growth via chemical vapor deposition is presented that utilizes substrate curva
Externí odkaz:
https://doaj.org/article/56c581fa05234c709cfe115631e4b2c2
Autor:
Kelotchi S. Figueroa, Natalya A. Zimbovskaya, Nicholas J. Pinto, Chengyu Wen, A. T. Charlie Johnson
Publikováno v:
AIP Advances, Vol 11, Iss 8, Pp 085015-085015-9 (2021)
Charge transport near the Dirac point (DP) was investigated in graphene using ferroelectric (FE) gating in the temperature range of 300 < T < 350 K. We observed that the conductivity (σ) near the DP had a positive temperature gradient that switched
Externí odkaz:
https://doaj.org/article/4a4fa62640f74fcab034a5b6ab3ef061
Publikováno v:
AIP Advances, Vol 10, Iss 12, Pp 125225-125225-6 (2020)
Monolayer MoS2 crystals investigated in this work were grown via chemical vapor deposition on Si/SiO2 substrates. Using a wet KOH etch, these crystals were transferred onto the edge of a freshly cleaved p-Si/SiO2 wafer where they formed mechanically
Externí odkaz:
https://doaj.org/article/c680e340ea70400f8dc10d54a681796f
Autor:
Nicholas Kybert, Katharine Prokop-Prigge, Cynthia M. Otto, Lorenzo Ramirez, EmmaRose Joffe, Janos Tanyi, Jody Piltz-Seymour, A. T. Charlie Johnson, George Preti
Publikováno v:
AIP Advances, Vol 10, Iss 3, Pp 035213-035213-11 (2020)
All cells release low molecular weight organic compounds that possess finite vapor pressures at body and/or ambient temperatures. These volatile organic compounds (VOCs) may possess an odor and can be found emanating from all body fluids. As cells tu
Externí odkaz:
https://doaj.org/article/99ab91e2bc7a423880294bf5ef2d1849