skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction

Abstract

Magnetic skyrmions are two-dimensional non-collinear spin textures characterized by an integer topological number. Room-temperature skyrmions were recently found in magnetic multilayer stacks, where their stability was largely attributed to the interfacial Dzyaloshinskii–Moriya interaction. The strength of this interaction and its role in stabilizing the skyrmions is not yet well understood, and imaging of the full spin structure is needed to address this question. Here, we use a nitrogen-vacancy centre in diamond to measure a map of magnetic fields produced by a skyrmion in a magnetic multilayer under ambient conditions. We compute the manifold of candidate spin structures and select the physically meaningful solution. We find a Néel-type skyrmion whose chirality is not left-handed, contrary to preceding reports. We propose skyrmion tube-like structures whose chirality rotates through the film thickness. We show that NV magnetometry, combined with our analysis method, provides a unique tool to investigate this previously inaccessible phenomenon.

Authors:
; ; ORCiD logo; ORCiD logo; ORCiD logo; ; ORCiD logo;
Publication Date:
Research Org.:
Massachusetts Inst. of Tech., Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1459464
Alternate Identifier(s):
OSTI ID: 1511458
Grant/Contract Number:  
SC0012371
Resource Type:
Published Article
Journal Name:
Nature Communications
Additional Journal Information:
Journal Name: Nature Communications Journal Volume: 9 Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United Kingdom
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Dovzhenko, Y., Casola, F., Schlotter, S., Zhou, T. X., Büttner, F., Walsworth, R. L., Beach, G. S. D., and Yacoby, A. Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction. United Kingdom: N. p., 2018. Web. doi:10.1038/s41467-018-05158-9.
Dovzhenko, Y., Casola, F., Schlotter, S., Zhou, T. X., Büttner, F., Walsworth, R. L., Beach, G. S. D., & Yacoby, A. Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction. United Kingdom. doi:10.1038/s41467-018-05158-9.
Dovzhenko, Y., Casola, F., Schlotter, S., Zhou, T. X., Büttner, F., Walsworth, R. L., Beach, G. S. D., and Yacoby, A. Fri . "Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction". United Kingdom. doi:10.1038/s41467-018-05158-9.
@article{osti_1459464,
title = {Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction},
author = {Dovzhenko, Y. and Casola, F. and Schlotter, S. and Zhou, T. X. and Büttner, F. and Walsworth, R. L. and Beach, G. S. D. and Yacoby, A.},
abstractNote = {Magnetic skyrmions are two-dimensional non-collinear spin textures characterized by an integer topological number. Room-temperature skyrmions were recently found in magnetic multilayer stacks, where their stability was largely attributed to the interfacial Dzyaloshinskii–Moriya interaction. The strength of this interaction and its role in stabilizing the skyrmions is not yet well understood, and imaging of the full spin structure is needed to address this question. Here, we use a nitrogen-vacancy centre in diamond to measure a map of magnetic fields produced by a skyrmion in a magnetic multilayer under ambient conditions. We compute the manifold of candidate spin structures and select the physically meaningful solution. We find a Néel-type skyrmion whose chirality is not left-handed, contrary to preceding reports. We propose skyrmion tube-like structures whose chirality rotates through the film thickness. We show that NV magnetometry, combined with our analysis method, provides a unique tool to investigate this previously inaccessible phenomenon.},
doi = {10.1038/s41467-018-05158-9},
journal = {Nature Communications},
number = 1,
volume = 9,
place = {United Kingdom},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1038/s41467-018-05158-9

Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Skyrmions in chiral magnets with Rashba and Dresselhaus spin-orbit coupling
journal, January 2016


A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics
journal, January 1958


Magnetic-field-dependent photodynamics of single NV defects in diamond: an application to qualitative all-optical magnetic imaging
journal, October 2012


Current-driven dynamics of chiral ferromagnetic domain walls
journal, June 2013

  • Emori, Satoru; Bauer, Uwe; Ahn, Sung-Min
  • Nature Materials, Vol. 12, Issue 7
  • DOI: 10.1038/nmat3675

Room-temperature chiral magnetic skyrmions in ultrathin magnetic nanostructures
journal, January 2016

  • Boulle, Olivier; Vogel, Jan; Yang, Hongxin
  • Nature Nanotechnology, Vol. 11, Issue 5
  • DOI: 10.1038/nnano.2015.315

Chirality-Induced Asymmetric Magnetic Nucleation in Pt / Co / AlO x Ultrathin Microstructures
journal, July 2014


Additive interfacial chiral interaction in multilayers for stabilization of small individual skyrmions at room temperature
journal, January 2016

  • Moreau-Luchaire, C.; Moutafis, C.; Reyren, N.
  • Nature Nanotechnology, Vol. 11, Issue 5
  • DOI: 10.1038/nnano.2015.313

Towards control of the size and helicity of skyrmions in helimagnetic alloys by spin–orbit coupling
journal, September 2013


Field-Dependent Size and Shape of Single Magnetic Skyrmions
journal, May 2015


Skyrmions on the track
journal, March 2013

  • Fert, Albert; Cros, Vincent; Sampaio, João
  • Nature Nanotechnology, Vol. 8, Issue 3
  • DOI: 10.1038/nnano.2013.29

New Type of Stable Particlelike States in Chiral Magnets
journal, September 2015


Skyrmion Lattice in a Chiral Magnet
journal, February 2009


Experimental observation of chiral magnetic bobbers in B20-type FeGe
journal, April 2018

  • Zheng, Fengshan; Rybakov, Filipp N.; Borisov, Aleksandr B.
  • Nature Nanotechnology, Vol. 13, Issue 6
  • DOI: 10.1038/s41565-018-0093-3

Chiral spin torque at magnetic domain walls
journal, June 2013

  • Ryu, Kwang-Su; Thomas, Luc; Yang, See-Hun
  • Nature Nanotechnology, Vol. 8, Issue 7
  • DOI: 10.1038/nnano.2013.102

Unwinding of a Skyrmion Lattice by Magnetic Monopoles
journal, May 2013


Nanoscale magnetic skyrmions in metallic films and multilayers: a new twist for spintronics
journal, June 2016


The nature of domain walls in ultrathin ferromagnets revealed by scanning nanomagnetometry
journal, April 2015

  • Tetienne, J. -P.; Hingant, T.; Martínez, L. J.
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms7733

Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets
journal, February 2016

  • Woo, Seonghoon; Litzius, Kai; Krüger, Benjamin
  • Nature Materials, Vol. 15, Issue 5
  • DOI: 10.1038/nmat4593

Nanoscale Imaging of Current Density with a Single-Spin Magnetometer
journal, March 2017


Are Skyrmions (2D solitons) observable in 2D antiferromagnets?
journal, February 1992


Spontaneous skyrmion ground states in magnetic metals
journal, August 2006

  • Rößler, U. K.; Bogdanov, A. N.; Pfleiderer, C.
  • Nature, Vol. 442, Issue 7104, p. 797-801
  • DOI: 10.1038/nature05056

Dynamics of magnetic vortices
journal, August 1991


Nanometre-scale probing of spin waves using single electron spins
journal, August 2015

  • van der Sar, Toeno; Casola, Francesco; Walsworth, Ronald
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms8886

Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit
journal, June 2017

  • Huang, Bevin; Clark, Genevieve; Navarro-Moratalla, Efrén
  • Nature, Vol. 546, Issue 7657
  • DOI: 10.1038/nature22391

Interfacial Dzyaloshinskii-Moriya interaction in perpendicularly magnetized Pt/Co/AlO x ultrathin films measured by Brillouin light spectroscopy
journal, May 2015


Topological properties and dynamics of magnetic skyrmions
journal, December 2013


Anisotropic Superexchange Interaction and Weak Ferromagnetism
journal, October 1960


Real-space observation of a two-dimensional skyrmion crystal
journal, June 2010


Direct observation of the skyrmion Hall effect
journal, September 2016

  • Jiang, Wanjun; Zhang, Xichao; Yu, Guoqiang
  • Nature Physics, Vol. 13, Issue 2
  • DOI: 10.1038/nphys3883

A robust scanning diamond sensor for nanoscale imaging with single nitrogen-vacancy centres
journal, April 2012

  • Maletinsky, P.; Hong, S.; Grinolds, M. S.
  • Nature Nanotechnology, Vol. 7, Issue 5
  • DOI: 10.1038/nnano.2012.50

Tailoring magnetic energies to form dipole skyrmions and skyrmion lattices
journal, January 2017