Electric control of a {Fe-4} single-molecule magnet in a single-electron transistor
(2013) In Physical Review B (Condensed Matter and Materials Physics) 88(22).- Abstract
- Using first-principles methods, we study theoretically the properties of an individual {Fe-4} single-molecule magnet (SMM) attached to metallic leads in a single-electron transistor geometry. We show that the conductive leads do not affect the spin ordering and magnetic anisotropy of the neutral SMM. On the other hand, the leads have a strong effect on the anisotropy of the charged states of the molecule, which are probed in Coulomb blockade transport. Furthermore, we demonstrate that an external electric potential, modeling a gate electrode, can be used to manipulate the magnetic properties of the system. For a charged molecule, by localizing the extra charge with the gate voltage closer to the magnetic core, the anisotropy magnitude and... (More)
- Using first-principles methods, we study theoretically the properties of an individual {Fe-4} single-molecule magnet (SMM) attached to metallic leads in a single-electron transistor geometry. We show that the conductive leads do not affect the spin ordering and magnetic anisotropy of the neutral SMM. On the other hand, the leads have a strong effect on the anisotropy of the charged states of the molecule, which are probed in Coulomb blockade transport. Furthermore, we demonstrate that an external electric potential, modeling a gate electrode, can be used to manipulate the magnetic properties of the system. For a charged molecule, by localizing the extra charge with the gate voltage closer to the magnetic core, the anisotropy magnitude and spin ordering converges to the values found for the isolated {Fe-4} SMM. We compare these findings with the results of recent quantum transport experiments in three-terminal devices. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4376253
- author
- Nossa Márquez, Javier Francisco LU ; Islam, M. F. ; Canali, C. M. and Pederson, M. R.
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 88
- issue
- 22
- article number
- 224423
- publisher
- American Physical Society
- external identifiers
-
- wos:000331753300006
- scopus:84892423956
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.88.224423
- language
- English
- LU publication?
- yes
- id
- aaa87e6b-1042-4568-a9ce-89f5d048a5a4 (old id 4376253)
- date added to LUP
- 2016-04-01 13:52:31
- date last changed
- 2022-03-14 02:27:06
@article{aaa87e6b-1042-4568-a9ce-89f5d048a5a4,
abstract = {{Using first-principles methods, we study theoretically the properties of an individual {Fe-4} single-molecule magnet (SMM) attached to metallic leads in a single-electron transistor geometry. We show that the conductive leads do not affect the spin ordering and magnetic anisotropy of the neutral SMM. On the other hand, the leads have a strong effect on the anisotropy of the charged states of the molecule, which are probed in Coulomb blockade transport. Furthermore, we demonstrate that an external electric potential, modeling a gate electrode, can be used to manipulate the magnetic properties of the system. For a charged molecule, by localizing the extra charge with the gate voltage closer to the magnetic core, the anisotropy magnitude and spin ordering converges to the values found for the isolated {Fe-4} SMM. We compare these findings with the results of recent quantum transport experiments in three-terminal devices.}},
author = {{Nossa Márquez, Javier Francisco and Islam, M. F. and Canali, C. M. and Pederson, M. R.}},
issn = {{1098-0121}},
language = {{eng}},
number = {{22}},
publisher = {{American Physical Society}},
series = {{Physical Review B (Condensed Matter and Materials Physics)}},
title = {{Electric control of a {Fe-4} single-molecule magnet in a single-electron transistor}},
url = {{http://dx.doi.org/10.1103/PhysRevB.88.224423}},
doi = {{10.1103/PhysRevB.88.224423}},
volume = {{88}},
year = {{2013}},
}