BROWSE

Related Scientist

CQN's photo.

CQN
양자나노과학 연구단
more info

ITEM VIEW & DOWNLOAD

Atomic-scale sensing of the magnetic dipolar field from single atoms.

Cited 38 time in webofscience Cited 39 time in scopus
1,413 Viewed 325 Downloaded
Title
Atomic-scale sensing of the magnetic dipolar field from single atoms.
Author(s)
Taeyoung Choi; William Paul; Steffen Rolf-Pissarczyk; Andrew J. Macdonald; Fabian D. Natterer; Kai Yang; Philip Willke; Christopher P. Lutz; Andreas, Heinrich
Subject
ELECTRON SPIN, ; RESONANCE, ; NANOSCALE, ; SPECTROSCOPY, ; ANISOTROPY, ; SURFACE
Publication Date
2017-05
Journal
NATURE NANOTECHNOLOGY, v.12, no.5, pp.420 - 424
Publisher
NATURE PUBLISHING GROUP
Abstract
Spin resonance provides the high-energy resolution needed to determine biological and material structures by sensing weak magnetic interactions1. In recent years, there have been notable achievements in detecting2 and coherently controlling3, 4, 5, 6, 7 individual atomic-scale spin centres for sensitive local magnetometry8, 9, 10. However, positioning the spin sensor and characterizing spin–spin interactions with sub-nanometre precision have remained outstanding challenges11, 12. Here, we use individual Fe atoms as an electron spin resonance (ESR) sensor in a scanning tunnelling microscope to measure the magnetic field emanating from nearby spins with atomic-scale precision. On artificially built assemblies of magnetic atoms (Fe and Co) on a magnesium oxide surface, we measure that the interaction energy between the ESR sensor and an adatom shows an inverse-cube distance dependence (r−3.01±0.04). This demonstrates that the atoms are predominantly coupled by the magnetic dipole–dipole interaction, which, according to our observations, dominates for atom separations greater than 1 nm. This dipolar sensor can determine the magnetic moments of individual adatoms with high accuracy. The achieved atomic-scale spatial resolution in remote sensing of spins may ultimately allow the structural imaging of individual magnetic molecules, nanostructures and spin-labelled biomolecules. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/3709
DOI
10.1038/NNANO.2017.18
ISSN
1748-3387
Appears in Collections:
Center for Quantum Nanoscience(양자나노과학 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
170306_최태영 AJH nnano.2017.18_Nature Nano.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse