Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Crowell, Paul A."'
Autor:
Shani, Lior, Lueb, Pim, Menning, Gavin, Gupta, Mohit, Riggert, Colin, Littman, Tyler, Hackbarth, Frey, Rossi, Marco, Jung, Jason, Badawy, Ghada, Verheijen, Marcel A., Crowell, Paul, Bakkers, Erik P. A. M., Pribiag, Vlad S.
Quantum devices based on InSb nanowires (NWs) are a prime candidate system for realizing and exploring topologically-protected quantum states and for electrically-controlled spin-based qubits. The influence of disorder on achieving reliable topologic
Externí odkaz:
http://arxiv.org/abs/2306.00117
Autor:
Etheridge, James M., Dill, Joseph, Dempsey, Connor P., Pendharkar, Mihir, Garcia-Barriocanal, Javier, Yu, Guichuan, Pribiag, Vlad S., Crowell, Paul A., Palmstrøm, Chris J.
We report on the interplay of two uniaxial magnetic anisotropies in epitaxial Fe thin films of varying thickness grown on InAs(001) as observed in ferromagnetic resonance experiments. One anisotropy originates from the Fe/InAs interface while the oth
Externí odkaz:
http://arxiv.org/abs/2305.14648
Autor:
Heischmidt, Brett, Yu, Maituo, Dardzinski, Derek, Etheridge, James, Moayedpour, Saeed, Pribiag, Vlad S., Crowell, Paul A., Marom, Noa
We present a first-principles study of the electronic and magnetic properties of epitaxial interfaces between the Heusler compounds Ti$_2$MnIn and Ni$_2$MnIn and the III-V semiconductors, InSb and InAs, respectively. We use density functional theory
Externí odkaz:
http://arxiv.org/abs/2209.14101
We demonstrate the pumping of phonons by ferromagnetic resonance in a series of [Co(0.8 nm)/Pd(1.5 nm)]$_n$ multilayers ($n =$ 6, 11, 15, and 20) with large magnetostriction and perpendicular magnetic anisotropy. The effect is shown using broadband f
Externí odkaz:
http://arxiv.org/abs/2110.01714
Spin-helical states, which arise in quasi-one-dimensional (1D) channels with spin-orbital (SO) coupling, underpin efforts to realize topologically-protected quantum bits based on Majorana modes in semiconductor nanowires. Detecting helical states is
Externí odkaz:
http://arxiv.org/abs/2104.02884
Autor:
Peria, William K., Wang, Xinjun, Yu, Heshan, Lee, Seunghun, Takeuchi, Ichiro, Crowell, Paul A.
Publikováno v:
Phys. Rev. B 103, 220403 (2021)
We report an enhanced magnetoelastic contribution to the Gilbert damping in highly magnetostrictive Fe$_{0.7}$Ga$_{0.3}$ thin films. This effect is mitigated for perpendicular-to-plane fields, leading to a large anisotropy of the Gilbert damping in a
Externí odkaz:
http://arxiv.org/abs/2103.07008
Autor:
Yang, Zedong, Heischmidt, Brett, Gazibegovic, Sasa, Badawy, Ghada, Car, Diana, Crowell, Paul A., Bakkers, Erik P. A. M., Pribiag, Vlad S.
Publikováno v:
Nano Letters 20, 3232 (2020)
Signatures of Majorana zero modes (MZMs), which are the building blocks for fault-tolerant topological quantum computing, have been observed in semiconductor nanowires (NW) with strong spin-orbital-interaction (SOI), such as InSb and InAs NWs with pr
Externí odkaz:
http://arxiv.org/abs/1909.07431
Autor:
Peria, William K., Peterson, Timothy A., McFadden, Anthony P., Qu, Tao, Liu, Changjiang, Palmstrøm, Chris J., Crowell, Paul A.
Publikováno v:
Phys. Rev. B 101, 134430 (2020)
We report on broadband ferromagnetic resonance linewidth measurements performed on epitaxial Heusler thin films. A large and anisotropic two-magnon scattering linewidth broadening is observed for measurements with the magnetization lying in the film
Externí odkaz:
http://arxiv.org/abs/1909.02738
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