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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/64026

Title: Fe Nanoclusters on the Ge(001) Surface Studied by Scanning Tunnelling Microscopy, Density Functional Theory Calculations and X-Ray Magnetic Circular Dichroism
Author: SHVETS, IGOR
KRASNIKOV, SERGEY
MURPHY, BARRY
LUBBEN, OLAF
PREOBREJENSKI, A.B.
Sponsor: 
Name Grant Number
07/RFP/MASF185

Author's Homepage: http://people.tcd.ie/ivchvets
http://people.tcd.ie/krasniks
Keywords: Ge(001)
iron nanoclusters
self-assembly
STM
X-Ray Magnetic Circular Dichroism
Density Functional Theory calculations
Issue Date: Oct-2011
Publisher: Tsinghua University Press
Citation: O. Lubben, SA Krasnikov, AB Preobrajenski, BE Murphy, IV Shvets, Fe Nanoclusters on the Ge(001) Surface Studied by Scanning Tunnelling Microscopy, Density Functional Theory Calculations and X-Ray Magnetic Circular Dichroism, Nano Research, 4, 10, 2011, 971 - 978
Series/Report no.: Nano Research;4, 10
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.
Description: PUBLISHED The original publication is available at www.springerlink.com
URI: http://hdl.handle.net/2262/64026
Appears in Collections:Physics (Scholarly Publications)

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