Giant, level-dependent g factors in InSb nanowire quantum dots.
(2009) In Nano Letters 9(9). p.3151-3156- Abstract
- We report on magnetotransport measurements on InSb nanowire quantum dots. The measurements show that the quantum levels of the InSb quantum dots have giant g factors, with absolute values up to approximately 70, the largest value ever reported for semiconductor quantum dots. We also observe that the values of these g factors are quantum level dependent and can differ strongly between different quantum levels. The presence of giant g factors indicates that considerable contributions from the orbital motion of electrons are preserved in the measured InSb nanowire quantum dots, while the level-to-level fluctuations arise from spin-orbit interaction. We have deduced a value of Delta(SO) = 280 mueV for the strength of spin-orbit interaction... (More)
- We report on magnetotransport measurements on InSb nanowire quantum dots. The measurements show that the quantum levels of the InSb quantum dots have giant g factors, with absolute values up to approximately 70, the largest value ever reported for semiconductor quantum dots. We also observe that the values of these g factors are quantum level dependent and can differ strongly between different quantum levels. The presence of giant g factors indicates that considerable contributions from the orbital motion of electrons are preserved in the measured InSb nanowire quantum dots, while the level-to-level fluctuations arise from spin-orbit interaction. We have deduced a value of Delta(SO) = 280 mueV for the strength of spin-orbit interaction from an avoided level crossing between the ground state and first excited state of an InSb nanowire quantum dot with a fixed number of electrons. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1483650
- author
- Nilsson, Henrik LU ; Caroff, Philippe LU ; Thelander, Claes LU ; Larsson, Marcus LU ; Wagner, Jakob LU ; Wernersson, Lars-Erik LU ; Samuelson, Lars LU and Xu, Hongqi LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nano Letters
- volume
- 9
- issue
- 9
- pages
- 3151 - 3156
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000269654900012
- pmid:19736971
- scopus:70349964624
- pmid:19736971
- ISSN
- 1530-6992
- DOI
- 10.1021/nl901333a
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Solid State Physics (011013006), Polymer and Materials Chemistry (LTH) (011001041), Electrical and information technology (011041010)
- id
- a9fb4af4-cf58-4940-9a3c-68934bb11590 (old id 1483650)
- date added to LUP
- 2016-04-01 12:57:15
- date last changed
- 2022-04-21 18:55:16
@article{a9fb4af4-cf58-4940-9a3c-68934bb11590, abstract = {{We report on magnetotransport measurements on InSb nanowire quantum dots. The measurements show that the quantum levels of the InSb quantum dots have giant g factors, with absolute values up to approximately 70, the largest value ever reported for semiconductor quantum dots. We also observe that the values of these g factors are quantum level dependent and can differ strongly between different quantum levels. The presence of giant g factors indicates that considerable contributions from the orbital motion of electrons are preserved in the measured InSb nanowire quantum dots, while the level-to-level fluctuations arise from spin-orbit interaction. We have deduced a value of Delta(SO) = 280 mueV for the strength of spin-orbit interaction from an avoided level crossing between the ground state and first excited state of an InSb nanowire quantum dot with a fixed number of electrons.}}, author = {{Nilsson, Henrik and Caroff, Philippe and Thelander, Claes and Larsson, Marcus and Wagner, Jakob and Wernersson, Lars-Erik and Samuelson, Lars and Xu, Hongqi}}, issn = {{1530-6992}}, language = {{eng}}, number = {{9}}, pages = {{3151--3156}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Nano Letters}}, title = {{Giant, level-dependent g factors in InSb nanowire quantum dots.}}, url = {{http://dx.doi.org/10.1021/nl901333a}}, doi = {{10.1021/nl901333a}}, volume = {{9}}, year = {{2009}}, }