Spectroscopic study of Gd nanostructures quantum confined in Fe corrals

Low dimensional nanostructures have attracted attention due to their rich physical properties and potential applications. The essential factor for their functionality is their electronic properties, which can be modified by quantum confinement. Here the electronic states of Gd atom trapped in open F...

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Main Authors:	Cao, R. X., Sun, L., Miao, B. F., Li, Q. L., Zheng, C., Wu, D., You, B., Zhang, W., Han, P., Bader, S. D., Zhang, W. Y., Ding, H. F.
Format:	Online
Language:	English
Published:	Nature Publishing Group 2015
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4498218/

id	pubmed-4498218
recordtype	oai_dc
spelling	pubmed-44982182015-07-13 Spectroscopic study of Gd nanostructures quantum confined in Fe corrals Cao, R. X. Sun, L. Miao, B. F. Li, Q. L. Zheng, C. Wu, D. You, B. Zhang, W. Han, P. Bader, S. D. Zhang, W. Y. Ding, H. F. Article Low dimensional nanostructures have attracted attention due to their rich physical properties and potential applications. The essential factor for their functionality is their electronic properties, which can be modified by quantum confinement. Here the electronic states of Gd atom trapped in open Fe corrals on Ag(111) were studied via scanning tunneling spectroscopy. A single spectroscopic peak above the Fermi level is observed after Gd adatoms are trapped inside Fe corrals, while two peaks appear in empty corrals. The single peak position is close to the higher energy peak of the empty corrals. These findings, attributed to quantum confinement of the corrals and Gd structures trapped inside, are supported by tight-binding calculations. This demonstrates and provides insights into atom trapping in open corrals of various diameters, giving an alternative approach to modify the properties of nano-objects. Nature Publishing Group 2015-07-10 /pmc/articles/PMC4498218/ /pubmed/26160318 http://dx.doi.org/10.1038/srep12092 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Cao, R. X. Sun, L. Miao, B. F. Li, Q. L. Zheng, C. Wu, D. You, B. Zhang, W. Han, P. Bader, S. D. Zhang, W. Y. Ding, H. F.
spellingShingle	Cao, R. X. Sun, L. Miao, B. F. Li, Q. L. Zheng, C. Wu, D. You, B. Zhang, W. Han, P. Bader, S. D. Zhang, W. Y. Ding, H. F. Spectroscopic study of Gd nanostructures quantum confined in Fe corrals
author_facet	Cao, R. X. Sun, L. Miao, B. F. Li, Q. L. Zheng, C. Wu, D. You, B. Zhang, W. Han, P. Bader, S. D. Zhang, W. Y. Ding, H. F.
author_sort	Cao, R. X.
title	Spectroscopic study of Gd nanostructures quantum confined in Fe corrals
title_short	Spectroscopic study of Gd nanostructures quantum confined in Fe corrals
title_full	Spectroscopic study of Gd nanostructures quantum confined in Fe corrals
title_fullStr	Spectroscopic study of Gd nanostructures quantum confined in Fe corrals
title_full_unstemmed	Spectroscopic study of Gd nanostructures quantum confined in Fe corrals
title_sort	spectroscopic study of gd nanostructures quantum confined in fe corrals
description	Low dimensional nanostructures have attracted attention due to their rich physical properties and potential applications. The essential factor for their functionality is their electronic properties, which can be modified by quantum confinement. Here the electronic states of Gd atom trapped in open Fe corrals on Ag(111) were studied via scanning tunneling spectroscopy. A single spectroscopic peak above the Fermi level is observed after Gd adatoms are trapped inside Fe corrals, while two peaks appear in empty corrals. The single peak position is close to the higher energy peak of the empty corrals. These findings, attributed to quantum confinement of the corrals and Gd structures trapped inside, are supported by tight-binding calculations. This demonstrates and provides insights into atom trapping in open corrals of various diameters, giving an alternative approach to modify the properties of nano-objects.
publisher	Nature Publishing Group
publishDate	2015
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4498218/
_version_	1613246360943853568

Spectroscopic study of Gd nanostructures quantum confined in Fe corrals

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