Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Churchill, H."'
Autor:
Patel, S., Faltermeier, T., Puri, S., Rodriguez, R., Reynolds, K., Davari, S., Churchill, H. O. H., Borys, N. J., Nakamura, H.
We present strain tuning of excitonic emission in monolayer MoSe$_2$ by using a high-temperature physical vapor deposition (PVD). The use of two amorphous substrates, Si$_{3}$N$_{4}$ and SiO$_{2}$, provides two setpoints to induce distinct amounts of
Externí odkaz:
http://arxiv.org/abs/2408.15469
Autor:
Doha, M. H., Batista, J. I. Santos, Rawwagah, A. F., Thompson, J. P., Fereidouni, A., Watanabe, K., Taniguchi, T., El-Shenawee, M., Churchill, H. O. H.
We report the fabrication, characterization, and modeling of photoconductive antennas using 40 nm thin-film flakes of black phosphorus (BP) as the photoconductor and hexagonal boron nitride (hBN) as a capping layer to prevent oxidation of BP. Dipole
Externí odkaz:
http://arxiv.org/abs/2007.12775
Autor:
Davari, S., Stacy, J., Mercado, A. M., Tull, J. D., Basnet, R., Pandey, K., Watanabe, K., Taniguchi, T., Hu, J., Churchill, H. O. H.
Publikováno v:
Phys. Rev. Applied 13, 054058 (2020)
We report the fabrication and characterization of gate-defined hole quantum dots in monolayer and bilayer WSe$_2$. The devices were operated with gates above and below the WSe$_2$ layer to accumulate a hole gas, which for some devices was then select
Externí odkaz:
http://arxiv.org/abs/2002.11799
Akademický článek
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Autor:
Churchill, H. O. H., Fatemi, V., Grove-Rasmussen, K., Deng, M. T., Caroff, P., Xu, H. Q., Marcus, C. M.
Publikováno v:
Phys. Rev. B 87, 241401(R) (2013)
We present transport measurements in superconductor-nanowire devices with a gated constriction forming a quantum point contact. Zero-bias features in tunneling spectroscopy appear at finite magnetic fields, and oscillate in amplitude and split away f
Externí odkaz:
http://arxiv.org/abs/1303.2407
Publikováno v:
Physical Review B 89, 121303(R) 2014
We demonstrate gate control of the electronic g-tensor in single and double quantum dots formed along a bend in a carbon nanotube. From the dependence of the single-dot excitation spectrum on magnetic field magnitude and direction, we extract spin-or
Externí odkaz:
http://arxiv.org/abs/1210.6402
Publikováno v:
Phys Rev. B 86, 115322 (2012)
We investigate spin relaxation in a silicon double quantum dot via leakage current through Pauli blockade as a function of interdot detuning and magnetic field. A dip in leakage current as a function of magnetic field on a \sim 40 mT field scale is a
Externí odkaz:
http://arxiv.org/abs/1111.6873
Publikováno v:
Physical Review B 82, 165427 (2010)
We study the energy spectrum of symmetric double quantum dots in narrow-gap carbon nanotubes with one and two electrostatically confined electrons in the presence of spin-orbit and Coulomb interactions. Compared to GaAs quantum dots, the spectrum exh
Externí odkaz:
http://arxiv.org/abs/1006.0724
Publikováno v:
Materials Today 13, 18 (2010)
Carbon nanotubes bridge the molecular and crystalline quantum worlds, and their extraordinary electronic, mechanical and optical properties have attracted enormous attention from a broad scientific community. We review the basic principles of fabrica
Externí odkaz:
http://arxiv.org/abs/0912.2745
Autor:
Churchill, H. O. H., Kuemmeth, F., Harlow, J. W., Bestwick, A. J., Rashba, E. I., Flensberg, K., Stwertka, C. H., Taychatanapat, T., Watson, S. K., Marcus, C. M.
Publikováno v:
Phys. Rev. Lett. 102, 166802 (2009).
We use charge sensing of Pauli blockade (including spin and isospin) in a two-electron 13C nanotube double quantum dot to measure relaxation and dephasing times. The relaxation time, T1, first decreases with parallel magnetic field then goes through
Externí odkaz:
http://arxiv.org/abs/0811.3239