Spin-Dependent-Recombination Detected Magnetic Resonance of Antimony Donors in Silicon
(2014) PHYM01 20142Solid State Physics
Department of Physics
- Abstract
- Realizing quantum information processing would be a paradigm shift in the way calculations and encryptions are used, and is as such a very attractive topic. On the hardware end, attempts on making architectures separating quantum processors and memories like in classical computers have been made. One type of possible quantum memory are group-V donor nuclear and electron spins in silicon, which exhibit long storage times and is well integrateable into the current silicon technology. Among the group-V donors, antimony has not previously been studied for possible use as a quantum memory in low magnetic fields. The antimony nucleus is theoretically expected to exhibit a strong quadrupole moment, which interactions might broaden or shift... (More)
- Realizing quantum information processing would be a paradigm shift in the way calculations and encryptions are used, and is as such a very attractive topic. On the hardware end, attempts on making architectures separating quantum processors and memories like in classical computers have been made. One type of possible quantum memory are group-V donor nuclear and electron spins in silicon, which exhibit long storage times and is well integrateable into the current silicon technology. Among the group-V donors, antimony has not previously been studied for possible use as a quantum memory in low magnetic fields. The antimony nucleus is theoretically expected to exhibit a strong quadrupole moment, which interactions might broaden or shift magnetic resonance lines away from theory.
This work shows a successful magnetic resonance spectroscopy of the two stable antimony isotopes in silicon at low magnetic fields through the spin-dependent recombination process. Shifts in resonance frequency for low fields are in particular studied, namely hyperfine interaction shifts, g-factor shifts, and electrical quadrupole shifts. Conventional EPR electron Sx-transitions, electron-nucleus flip-flop Sz-transitions and NMR nuclear Ix transitions are successfully observed down to the lower limit of the experimental setup of 6 mT. A shift characteristic of quadrupole interactions is observed in both isotopes for the $S_z$ and $I_x$-transitions at the order of 10 MHz. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/4905125
- author
- Rosenius, Samuel LU
- supervisor
- organization
- course
- PHYM01 20142
- year
- 2014
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- quantum information, magnetic resonance, nuclear physics, semiconductors, donors
- language
- English
- additional info
- This work was done as part of the double-degree exchange program at Keio University, Tokyo, Japan.
- id
- 4905125
- date added to LUP
- 2015-02-10 21:02:54
- date last changed
- 2015-02-10 21:02:54
@misc{4905125, abstract = {{Realizing quantum information processing would be a paradigm shift in the way calculations and encryptions are used, and is as such a very attractive topic. On the hardware end, attempts on making architectures separating quantum processors and memories like in classical computers have been made. One type of possible quantum memory are group-V donor nuclear and electron spins in silicon, which exhibit long storage times and is well integrateable into the current silicon technology. Among the group-V donors, antimony has not previously been studied for possible use as a quantum memory in low magnetic fields. The antimony nucleus is theoretically expected to exhibit a strong quadrupole moment, which interactions might broaden or shift magnetic resonance lines away from theory. This work shows a successful magnetic resonance spectroscopy of the two stable antimony isotopes in silicon at low magnetic fields through the spin-dependent recombination process. Shifts in resonance frequency for low fields are in particular studied, namely hyperfine interaction shifts, g-factor shifts, and electrical quadrupole shifts. Conventional EPR electron Sx-transitions, electron-nucleus flip-flop Sz-transitions and NMR nuclear Ix transitions are successfully observed down to the lower limit of the experimental setup of 6 mT. A shift characteristic of quadrupole interactions is observed in both isotopes for the $S_z$ and $I_x$-transitions at the order of 10 MHz.}}, author = {{Rosenius, Samuel}}, language = {{eng}}, note = {{Student Paper}}, title = {{Spin-Dependent-Recombination Detected Magnetic Resonance of Antimony Donors in Silicon}}, year = {{2014}}, }