Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Dimitrie Culcer"'
Publikováno v:
npj Spintronics, Vol 2, Iss 1, Pp 1-10 (2024)
Abstract The spin-Hall effect underpins some of the most active topics in modern physics, including spin torques and the inverse spin-Hall effect, yet it lacks a proper theoretical description. This makes it difficult to differentiate the SHE from ot
Externí odkaz:
https://doaj.org/article/c0b52c49c7134e74bf8b12a95fc9d557
Publikováno v:
Advances in Physics: X, Vol 9, Iss 1 (2024)
The investigation of orbital angular momentum (OAM) of delocalised Bloch electrons has advanced our understanding of magnetic, transport, and optical phenomena in crystals, drawing widespread interest across various materials science domains, from me
Externí odkaz:
https://doaj.org/article/1dadcd12f94445b0ae3e915c43c516d1
Autor:
Abhikbrata Sarkar, Joel Hochstetter, Allen Kha, Xuedong Hu, Michelle Y. Simmons, Rajib Rahman, Dimitrie Culcer
Publikováno v:
npj Quantum Information, Vol 8, Iss 1, Pp 1-11 (2022)
Abstract Multi-donor quantum dots have been at the forefront of recent progress in Si-based quantum computation. Among them, 2P: 1P spin qubits have a built-in dipole moment, making them ideal for electron dipole spin resonance (EDSR) using the donor
Externí odkaz:
https://doaj.org/article/35860e4f343d4fecb85fc898e34a07bb
Autor:
Ke Wang, Gang Xu, Fei Gao, He Liu, Rong-Long Ma, Xin Zhang, Zhanning Wang, Gang Cao, Ting Wang, Jian-Jun Zhang, Dimitrie Culcer, Xuedong Hu, Hong-Wen Jiang, Hai-Ou Li, Guang-Can Guo, Guo-Ping Guo
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-6 (2022)
Hole-spin qubits in germanium are promising candidates for rapid, all-electrical qubit control. Here the authors report Rabi oscillations with the record frequency of 540 MHz in a hole-based double quantum dot in a germanium hut wire, which is attrib
Externí odkaz:
https://doaj.org/article/2a1162c51b28448bb04d63bc4d5deaa4
Autor:
Zhanning Wang, Elizabeth Marcellina, Alex. R. Hamilton, James H. Cullen, Sven Rogge, Joe Salfi, Dimitrie Culcer
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-8 (2021)
Abstract Strong spin-orbit interactions make hole quantum dots central to the quest for electrical spin qubit manipulation enabling fast, low-power, scalable quantum computation. Yet it is important to establish to what extent spin-orbit coupling exp
Externí odkaz:
https://doaj.org/article/ee879c97ea1e4ca1acc0c997a79b3a9b
Publikováno v:
PRX Energy, Vol 2, Iss 1, p 013006 (2023)
The bulk photovoltaic effect (BPVE) leads to directed photocurrents and photovoltages in bulk materials. Unlike photovoltages in p-n junction solar cells that are limited by carrier recombination to values below the band-gap energy of the absorbing m
Externí odkaz:
https://doaj.org/article/746ffde2324c4a83a6cfebd25fc9d050
Publikováno v:
Materials for Quantum Technology, Vol 3, Iss 2, p 025002 (2023)
The mutual interplay between electron transport and magnetism has attracted considerable attention in recent years, primarily motivated by strategies to manipulate magnetic degrees of freedom electrically, such as spin–orbit torques and domain wall
Externí odkaz:
https://doaj.org/article/72fe3beb4d804ff2903bd64b205e57e8
Publikováno v:
Materials for Quantum Technology, Vol 3, Iss 1, p 012003 (2023)
In recent years, hole-spin qubits based on semiconductor quantum dots have advanced at a rapid pace. We first review the main potential advantages of these hole-spin qubits with respect to their electron-spin counterparts and give a general theoretic
Externí odkaz:
https://doaj.org/article/b83f8b996d30486c847b396baacc0042
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p 013001 (2022)
The semiclassical equations of motion are widely used to describe carrier transport in conducting materials. Nevertheless, the substantial challenge of incorporating disorder systematically into the semiclassical model persists, leading to quantitati
Externí odkaz:
https://doaj.org/article/cf2d77a7645d4b498af078d8c54a8f49
Publikováno v:
JPhys Materials, Vol 6, Iss 1, p 014002 (2022)
The origins of the spin-orbit torque (SOT) at ferromagnet/topological insulator interfaces are incompletely understood. The theory has overwhelmingly focussed on the Edelstein effect due to the surface states in the presence of a scalar scattering po
Externí odkaz:
https://doaj.org/article/f4a35a83cabf4b8983e984a769734591