Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Sucheta Gorwadkar"'
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 66:1475-1481
We fabricated and evaluated a 1 $\text{M}{\Omega }$ quantum Hall array device with GaAs/AlGaAs substrates. This 1 $\text{M}{\Omega }$ quantized Hall resistance array device consists of 88 Hall bars, and its nominal resistance value is $10^{6} (1-0.03
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1527cc1df1cf72d98c4795cc89d9a21
https://doi.org/10.1109/tim.2016.2620218
https://doi.org/10.1109/tim.2016.2620218
Publikováno v:
2018 Conference on Precision Electromagnetic Measurements (CPEM 2018).
We have developed $10 \ \mathbf{k}\Omega$ and $1\ \mathbf{M}\Omega$ quantum Hall array devices so far on GaAs/AlGaAs substrates. To realize higher quantized resistance, we designed $\pmb{10\ \mathrm{M}\Omega}$ array device. The $10\ \mathbf{M}\Omega$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71bd930cd3543dac9ed1f62cf0397cd1
https://doi.org/10.1109/cpem.2018.8501182
https://doi.org/10.1109/cpem.2018.8501182
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 62:1755-1759
We propose a new design for a 10- $\hbox{k}\Omega$ quantized Hall resistance (QHR) array device. This design realizes quantized resistance values that approach decade values with fewer Hall bars. In this design, the 10- $\hbox{k}\Omega$ QHR array dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a715239a7ebfe88fab632a099fc48ad
https://doi.org/10.1109/tim.2012.2228750
https://doi.org/10.1109/tim.2012.2228750
Publikováno v:
2016 Conference on Precision Electromagnetic Measurements (CPEM 2016).
We have started to develop 1-ΜΩ quantum Hall array standards with GaAs/AlGaAs substrates. This 1-MΩ QHR array device consists of 88 Hall bars, and the nominal value is 1 ΜΩ × (1–0.0342 μΩ/Ω). The ratio for this nominal, 10150/131, was deri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b268bc7d2a1741a888c7ab54ed42bc7c
https://doi.org/10.1109/cpem.2016.7540717
https://doi.org/10.1109/cpem.2016.7540717
Publikováno v:
physica status solidi c. 9:270-273
All the contact pads of a quantized Hall resistance (QHR) device should have a low contact resistance (∼1 Ω) for the application of DC resistance standard devices at cryogenic temperatures. Corrosion of a GaAs/AlGaAs substrate occurs along the edg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0563e963c4925da4f6a35a2617d7d338
https://doi.org/10.1002/pssc.201100293
https://doi.org/10.1002/pssc.201100293
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 60:2590-2595
A quantum Hall array resistance standard (QHARS) device with a nominal value close to 10 kΩ on the i = 2 plateau has been developed on a GaAs/AlGaAs heterosubstrate. This QHARS device consists of 266 Hall bar elements, and its nominal value has only
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2fb6953d7be188332ca465164baff7e
https://doi.org/10.1109/tim.2010.2100630
https://doi.org/10.1109/tim.2010.2100630
Autor:
Masaaki Maezawa, Chiharu Urano, Taro Itatani, J. Maeda, S. Kiryu, H. Saitou, Sucheta Gorwadkar, Nobu-Hisa Kaneko, Takehiko Oe
Publikováno v:
Physica C: Superconductivity and its Applications. :1123-1126
We observed constant voltage steps for an overdamped Josephson array driven by current pulse trains generated by triggering a photo detector located in a cryostat with a mode locked fiber laser. We measured the voltages of the Josephson array as a fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6631f8d838bf943acbcee2fc2a38cf23
https://doi.org/10.1016/j.physc.2007.01.066
https://doi.org/10.1016/j.physc.2007.01.066
Autor:
J. Maeda, Nobu-Hisa Kaneko, Taro Itatani, Sucheta Gorwadkar, H. Saitou, Chiharu Urano, S. Kiryu, Masaaki Maezawa
Publikováno v:
IEEE Transactions on Applied Superconductivity. 17:870-873
We report the experimental results on a Josephson junction array (JJA) driven by current pulse trains generated by triggering a photo detector located in a cryostat with an optical comb. The key components in the experimental system are a mode locked
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73e26b7406d51baf7e89fe0447e66546
https://doi.org/10.1109/tasc.2007.897391
https://doi.org/10.1109/tasc.2007.897391
Autor:
Sucheta Gorwadkar, S. Kiryu, Nobu-Hisa Kaneko, J. Maeda, Masaaki Maezawa, H. Saitou, Chiharu Urano, Taro Itatani
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 56:614-618
In this paper, quantized voltage steps were observed by driving an overdamped Josephson junction array (JJA) with current pulse trains. The current pulse trains were generated by triggering a metal-semiconductor-metal photodetector installed close to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34f432b51f2ff10b2b2a3f361ded2722
https://doi.org/10.1109/tim.2007.891065
https://doi.org/10.1109/tim.2007.891065
Publikováno v:
IEEE Transactions on Instrumentation & Measurement. Jun2017, Vol. 66 Issue 6, p1475-1481. 7p.