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양자나노과학 연구단
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Spin-polarized scanning tunneling microscopy with quantitative insights into magnetic probes

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Title
Spin-polarized scanning tunneling microscopy with quantitative insights into magnetic probes
Author(s)
Soo-hyon Phark; Dirk Sander
Publication Date
2017-12
Journal
NANO CONVERGENCE, v.4, no., pp.8 -
Publisher
Heidelberg : Springer
Abstract
Spin-polarized scanning tunneling microscopy and spectroscopy (spin-STM/S) have been successfully applied to magnetic characterizations of individual nanostructures. Spin-STM/S is often performed in magnetic fields of up to some Tesla, which may strongly influence the tip state. In spite of the pivotal role of the tip in spin-STM/S, the contribution of the tip to the differential conductance dI/dV signal in an external field has rarely been investigated in detail. In this review, an advanced analysis of spin-STM/S data measured on magnetic nanoislands, which relies on a quantitative magnetic characterization of tips, is discussed. Taking advantage of the uniaxial out-of-plane magnetic anisotropy of Co bilayer nanoisland on Cu(111), in-field spin-STM on this system has enabled a quantitative determination, and thereby, a categorization of the magnetic states of the tips. The resulting in-depth and conclusive analysis of magnetic characterization of the tip opens new venues for a clear-cut sub-nanometer scale spin ordering and spin-dependent electronic structure of the non-collinear magnetic state in bilayer high Fe nanoislands on Cu(111). © Korea Nano Technology Research Society 2017.
URI
https://pr.ibs.re.kr/handle/8788114/3637
ISSN
2196-5404
Appears in Collections:
Center for Quantum Nanoscience(양자나노과학 연구단) > Journal Papers (저널 논문)
Files in This Item:
170604 박수현 s40580-017-0102-5_Nano Covergence.pdfDownload

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