Fe Nanoclusters on the Ge(001) Surface Studied by Scanning Tunneling Microscopy, Density Functional Theory Calculations and X-Ray Magnetic Circular Dichroism
(2011) In Nano Reseach 4(10). p.971-978- Abstract
- The growth of Fe nanoclusters on the Ge(001) surface has been studied using low-temperature scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. STM results indicate that Fe nucleates on the Ge(001) surface, forming well-ordered nanoclusters of uniform size. Depending on the preparation conditions, two types of nanoclusters were observed having either four or sixteen Fe atoms within a nanocluster. The results were confirmed by DFT calculations. Annealing the nanoclusters at 420 K leads to the formation of nanorow structures, due to cluster mobility at such temperature. The Fe nanoclusters and nanorow structures formed on the Ge(001) surface show a superparamagnetic behaviour as measured by X-ray magnetic... (More)
- The growth of Fe nanoclusters on the Ge(001) surface has been studied using low-temperature scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. STM results indicate that Fe nucleates on the Ge(001) surface, forming well-ordered nanoclusters of uniform size. Depending on the preparation conditions, two types of nanoclusters were observed having either four or sixteen Fe atoms within a nanocluster. The results were confirmed by DFT calculations. Annealing the nanoclusters at 420 K leads to the formation of nanorow structures, due to cluster mobility at such temperature. The Fe nanoclusters and nanorow structures formed on the Ge(001) surface show a superparamagnetic behaviour as measured by X-ray magnetic circular dichroism. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2253150
- author
- Luebben, Olaf ; Krasnikov, Sergey A. ; Preobrajenski, Alexei LU ; Murphy, Barry E. and Shvets, Igor V.
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ge(001), iron nanoclusters, self-assembly, scanning tunnelling, microscopy, X-ray magnetic circular dichroism, density functional, theory calculations
- in
- Nano Reseach
- volume
- 4
- issue
- 10
- pages
- 971 - 978
- publisher
- Springer
- external identifiers
-
- wos:000296649100006
- scopus:80053442309
- ISSN
- 1998-0124
- DOI
- 10.1007/s12274-011-0153-6
- language
- English
- LU publication?
- yes
- id
- 4b37c648-1675-4069-920b-94d01a84b9c5 (old id 2253150)
- date added to LUP
- 2016-04-01 10:07:04
- date last changed
- 2022-01-25 19:57:14
@article{4b37c648-1675-4069-920b-94d01a84b9c5, abstract = {{The growth of Fe nanoclusters on the Ge(001) surface has been studied using low-temperature scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. STM results indicate that Fe nucleates on the Ge(001) surface, forming well-ordered nanoclusters of uniform size. Depending on the preparation conditions, two types of nanoclusters were observed having either four or sixteen Fe atoms within a nanocluster. The results were confirmed by DFT calculations. Annealing the nanoclusters at 420 K leads to the formation of nanorow structures, due to cluster mobility at such temperature. The Fe nanoclusters and nanorow structures formed on the Ge(001) surface show a superparamagnetic behaviour as measured by X-ray magnetic circular dichroism.}}, author = {{Luebben, Olaf and Krasnikov, Sergey A. and Preobrajenski, Alexei and Murphy, Barry E. and Shvets, Igor V.}}, issn = {{1998-0124}}, keywords = {{Ge(001); iron nanoclusters; self-assembly; scanning tunnelling; microscopy; X-ray magnetic circular dichroism; density functional; theory calculations}}, language = {{eng}}, number = {{10}}, pages = {{971--978}}, publisher = {{Springer}}, series = {{Nano Reseach}}, title = {{Fe Nanoclusters on the Ge(001) Surface Studied by Scanning Tunneling Microscopy, Density Functional Theory Calculations and X-Ray Magnetic Circular Dichroism}}, url = {{http://dx.doi.org/10.1007/s12274-011-0153-6}}, doi = {{10.1007/s12274-011-0153-6}}, volume = {{4}}, year = {{2011}}, }