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Title: A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks: distorted viscous vortex

Abstract

Magnetic vortices have generated intense interest in recent years due to their unique reversal mechanisms, fascinating topological properties, and exciting potential applications. In addition, the exchange coupling of magnetic vortices to antiferromagnets has also been shown to lead to a range of novel phenomena and functionalities. Here we report a new magnetization reversal mode of magnetic vortices in exchange coupled Ir20Mn80/Fe20Ni80 microdots: distorted viscous vortex reversal. In contrast to the previously known or proposed reversal modes, the vortex is distorted close to the interface and viscously dragged due to the uncompensated spins of a thin antiferromagnet, which leads to unexpected asymmetries in the annihilation and nucleation fields. These results provide a deeper understanding of the physics of exchange coupled vortices and may also have important implications for applications involving exchange coupled nanostructures.

Authors:
 [1];  [1];  [2];  [3];  [3];  [3];  [4];  [5];  [6];  [3];  [7];  [1];  [8]
+ Show Author Affiliations
  1. Univ. of California, Davis, CA (United States)
  2. Universitat de Barcelona (Spain)
  3. Univ. Autonoma de Barcelona, Bellaterra (Barcelona) (Spain)
  4. Univ. Autonoma de Barcelona, Bellaterra (Barcelona) (Spain); ICN2 - Institut Catala de Nanociencia is Nanotechnologia, Bellaterra (Barcelona) (Spain)
  5. Colorado State Univ., Fort Collins (United States)
  6. Argonne National Lab. (ANL), Argonne, IL (United States)
  7. Univ. Autonoma de Barcelona, Bellaterra (Barcelona) (Spain); Institucio Catalana de Recerca i Estudis Avancats (ICREA), Barcelona (Spain)
  8. Univ. Autonoma de Barcelona, Bellaterra (Barcelona) (Spain); ICN2 - Institut Catala de Nanociencia is Nanotechnologia, Bellaterra (Barcelona) (Spain); Institucio Catalana de Recerca i Estudis Avancats (ICREA), Barcelona (Spain)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1214389
Alternate Identifier(s):
OSTI ID: 1352841
Grant/Contract Number:  
AC02-06CH11357; 2014-SGR-1015; ECCS-1232275; DMR-1008791; 11328402
Resource Type:
Accepted Manuscript
Journal Name:
Nanoscale
Additional Journal Information:
Journal Volume: 7; Journal Issue: 21; Journal ID: ISSN 2040-3364
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE

Citation Formats

Gilbert, Dustin A., Ye, Li, Varea, Aïda, Agramunt-Puig, Sebastià, del Valle, Nuria, Navau, Carles, López-Barbera, José Francisco, Buchanan, Kristen S., Hoffmann, Axel, Sánchez, Alvar, Sort, Jordi, Liu, Kai, and Nogués, Josep. A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks: distorted viscous vortex. United States: N. p., 2015. Web. doi:10.1039/c5nr01856k.
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Gilbert, Dustin A., Ye, Li, Varea, Aïda, Agramunt-Puig, Sebastià, del Valle, Nuria, Navau, Carles, López-Barbera, José Francisco, Buchanan, Kristen S., Hoffmann, Axel, Sánchez, Alvar, Sort, Jordi, Liu, Kai, & Nogués, Josep. A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks: distorted viscous vortex. United States. https://doi.org/10.1039/c5nr01856k
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Gilbert, Dustin A., Ye, Li, Varea, Aïda, Agramunt-Puig, Sebastià, del Valle, Nuria, Navau, Carles, López-Barbera, José Francisco, Buchanan, Kristen S., Hoffmann, Axel, Sánchez, Alvar, Sort, Jordi, Liu, Kai, and Nogués, Josep. Tue . "A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks: distorted viscous vortex". United States. https://doi.org/10.1039/c5nr01856k. https://www.osti.gov/servlets/purl/1214389.
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@article{osti_1214389,
title = {A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks: distorted viscous vortex},
author = {Gilbert, Dustin A. and Ye, Li and Varea, Aïda and Agramunt-Puig, Sebastià and del Valle, Nuria and Navau, Carles and López-Barbera, José Francisco and Buchanan, Kristen S. and Hoffmann, Axel and Sánchez, Alvar and Sort, Jordi and Liu, Kai and Nogués, Josep},
abstractNote = {Magnetic vortices have generated intense interest in recent years due to their unique reversal mechanisms, fascinating topological properties, and exciting potential applications. In addition, the exchange coupling of magnetic vortices to antiferromagnets has also been shown to lead to a range of novel phenomena and functionalities. Here we report a new magnetization reversal mode of magnetic vortices in exchange coupled Ir20Mn80/Fe20Ni80 microdots: distorted viscous vortex reversal. In contrast to the previously known or proposed reversal modes, the vortex is distorted close to the interface and viscously dragged due to the uncompensated spins of a thin antiferromagnet, which leads to unexpected asymmetries in the annihilation and nucleation fields. These results provide a deeper understanding of the physics of exchange coupled vortices and may also have important implications for applications involving exchange coupled nanostructures.},
doi = {10.1039/c5nr01856k},
journal = {Nanoscale},
number = 21,
volume = 7,
place = {United States},
year = {Tue Apr 28 00:00:00 EDT 2015},
month = {Tue Apr 28 00:00:00 EDT 2015}
}
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https://doi.org/10.1039/c5nr01856k
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Works referenced in this record:

Asymmetric reversal of the hysteresis loop in exchange-biased nanodots
journal, March 2005

Magnetization reversal of Co ∕ Pt multilayers: Microscopic origin of high-field magnetic irreversibility
journal, December 2004

Magnetization Reversal in Submicron Disks: Exchange Biased Vortices
journal, August 2005

Magnetic properties of L 1 0 -FePt/Fe exchange-coupled composite nanodots
journal, May 2014

Phase-locking of magnetic vortices mediated by antivortices
journal, June 2009

Size-dependent magnetic properties of 100–500 nm diameter IrMn/NiFe disks made by a two-step deposition process
journal, November 2014

  • Liu, F.; Ross, C. A.
  • Journal of Applied Physics, Vol. 116, Issue 19
  • DOI: 10.1063/1.4902080

Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions
journal, November 2013

Vortex Chirality in Exchange-Biased Elliptical Magnetic Rings
journal, December 2006

Magnetic Biasing of a Ferroelectric Hysteresis Loop in a Multiferroic Orthoferrite
journal, January 2014

Memory effect and triplet pairing generation in the superconducting exchange biased Co/CoO x /Cu 41 Ni 59 /Nb/Cu 41 Ni 59 layered heterostructure
journal, August 2013

  • Zdravkov, V. I.; Lenk, D.; Morari, R.
  • Applied Physics Letters, Vol. 103, Issue 6
  • DOI: 10.1063/1.4818266

Direct observation of imprinted antiferromagnetic vortex states in CoO/Fe/Ag(001) discs
journal, January 2011

  • Wu, J.; Carlton, D.; Park, J. S.
  • Nature Physics, Vol. 7, Issue 4
  • DOI: 10.1038/nphys1891

Antiferromagnetic layer thickness dependence of the IrMn/Co exchange-bias system
journal, December 2003

Simulations of magnetic vortex dynamics in exchange-biased sub-micron-sized disks
journal, November 2013

  • Parreiras, S. O.; Fior, G. B. M.; Garcia, F.
  • Journal of Applied Physics, Vol. 114, Issue 20
  • DOI: 10.1063/1.4833568

Magnetic vortex oscillator driven by d.c. spin-polarized current
journal, May 2007

  • Pribiag, V. S.; Krivorotov, I. N.; Fuchs, G. D.
  • Nature Physics, Vol. 3, Issue 7
  • DOI: 10.1038/nphys619

Coercivity of ledge-type L10-FePt/Fe nanocomposites with perpendicular magnetization
journal, February 2009

  • Goll, D.; Breitling, A.
  • Applied Physics Letters, Vol. 94, Issue 5
  • DOI: 10.1063/1.3078286

Direct Observation of Internal Spin Structure of Magnetic Vortex Cores
journal, October 2002

Asymmetric Reversal in Inhomogeneous Magnetic Heterostructures
journal, June 2006

Sign Control of Magnetoresistance Through Chemically Engineered Interfaces
journal, October 2014

  • Ciudad, David; Gobbi, Marco; Kinane, Christy J.
  • Advanced Materials, Vol. 26, Issue 45
  • DOI: 10.1002/adma.201401283

Deconvoluting reversal modes in exchange-biased nanodots
journal, October 2012

Electrical switching of the vortex core in a magnetic disk
journal, March 2007

  • Yamada, Keisuke; Kasai, Shinya; Nakatani, Yoshinobu
  • Nature Materials, Vol. 6, Issue 4
  • DOI: 10.1038/nmat1867

Exchange-Biased Magnetic Vortices
journal, July 2008

  • Hoffmann, A.; Sort, J.; Buchanan, K. S.
  • IEEE Transactions on Magnetics, Vol. 44, Issue 7
  • DOI: 10.1109/TMAG.2008.924547

Chirality control via double vortices in asymmetric Co dots
journal, February 2011

Correlation between Exchange Bias and Pinned Interfacial Spins
journal, July 2003

Micromagnetic modeling of spin-wave dynamics in exchange-biased permalloy disks
journal, October 2007

Mechanisms for exchange bias
journal, November 2000

Temperature induced single domain–vortex state transition in sub-100nm Fe nanodots
journal, November 2007

  • Dumas, Randy K.; Liu, Kai; Li, Chang-Peng
  • Applied Physics Letters, Vol. 91, Issue 20
  • DOI: 10.1063/1.2807276

Electric Control of Exchange Bias Training
journal, October 2013

Magnetic Vortex Core Observation in Circular Dots of Permalloy
journal, August 2000

Uncompensated Moments in the MnPd / Fe Exchange Bias System
journal, September 2008

Ordered magnetic nanostructures: fabrication and properties
journal, January 2003

Controlling magnetic vortices through exchange bias
journal, January 2006

  • Sort, J.; Salazar-Alvarez, G.; Baró, M. D.
  • Applied Physics Letters, Vol. 88, Issue 4
  • DOI: 10.1063/1.2165290

Pinned magnetization in the antiferromagnet and ferromagnet of an exchange bias system
journal, June 2007

Control of the chirality and polarity of magnetic vortices in triangular nanodots
journal, February 2010

Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
journal, July 2009

  • Salazar-Alvarez, G.; Kavich, J. J.; Sort, J.
  • Applied Physics Letters, Vol. 95, Issue 1
  • DOI: 10.1063/1.3168515

Controlling vortex chirality and polarity by geometry in magnetic nanodots
journal, January 2014

  • Agramunt-Puig, Sebastia; Del-Valle, Nuria; Navau, Carles
  • Applied Physics Letters, Vol. 104, Issue 1
  • DOI: 10.1063/1.4861423

Temperature dependent magnetization reversal of exchange biased magnetic vortices in IrMn/Fe microcaps
journal, July 2014

  • Thomas, S.; Nissen, D.; Albrecht, M.
  • Applied Physics Letters, Vol. 105, Issue 2
  • DOI: 10.1063/1.4890380

Oscillatory dependence of current-driven magnetic domain wall motion on current pulse length
journal, September 2006

  • Thomas, Luc; Hayashi, Masamitsu; Jiang, Xin
  • Nature, Vol. 443, Issue 7108
  • DOI: 10.1038/nature05093

Single-Domain Circular Nanomagnets
journal, August 1999

Magnetic vortex core reversal by excitation of spin waves
journal, April 2011

  • Kammerer, Matthias; Weigand, Markus; Curcic, Michael
  • Nature Communications, Vol. 2, Issue 1
  • DOI: 10.1038/ncomms1277

Creating an Artificial Two-Dimensional Skyrmion Crystal by Nanopatterning
journal, April 2013

Reversal behavior of exchange-biased submicron dots
journal, January 2005

  • Li, Zhi-Pan; Petracic, Oleg; Eisenmenger, Johannes
  • Applied Physics Letters, Vol. 86, Issue 7
  • DOI: 10.1063/1.1863449

Quantitative Decoding of Interactions in Tunable Nanomagnet Arrays Using First Order Reversal Curves
journal, February 2014

  • Gilbert, Dustin A.; Zimanyi, Gergely T.; Dumas, Randy K.
  • Scientific Reports, Vol. 4, Issue 1
  • DOI: 10.1038/srep04204

Biofunctionalized magnetic-vortex microdiscs for targeted cancer-cell destruction
journal, November 2009

  • Kim, Dong-Hyun; Rozhkova, Elena A.; Ulasov, Ilya V.
  • Nature Materials, Vol. 9, Issue 2
  • DOI: 10.1038/nmat2591

Control of quantum magnets by atomic exchange bias
journal, December 2014

  • Yan, Shichao; Choi, Deung-Jang; Burgess, Jacob A. J.
  • Nature Nanotechnology, Vol. 10, Issue 1
  • DOI: 10.1038/nnano.2014.281

Anisotropy dependence of irreversible switching in Fe∕SmCo and FeNi∕FePt exchange spring magnet films
journal, June 2005

  • Davies, Joseph E.; Hellwig, Olav; Fullerton, Eric E.
  • Applied Physics Letters, Vol. 86, Issue 26
  • DOI: 10.1063/1.1954898

Exchange bias in nanostructures
journal, December 2005

Anisotropic magnetoresistance in an antiferromagnetic semiconductor
journal, September 2014

  • Fina, I.; Marti, X.; Yi, D.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms5671

Field dependent exchange coupling in NiO/Co bilayers
journal, January 2003

Magnetization reversal in circularly exchange-biased ferromagnetic disks
journal, January 2009

Magnetic fingerprints of sub- 100 nm Fe dots
journal, April 2007

Vortex magnetization reversal in double-layer ferromagnetic/antiferromagnetic dots
journal, May 2007

  • Guslienko, K. Y.; Hoffmann, A.
  • Journal of Applied Physics, Vol. 101, Issue 9
  • DOI: 10.1063/1.2719620

Translational-mode dynamics of exchange-biased vortices
journal, April 2008

  • Buchanan, K. S.; Hoffmann, A.; Novosad, V.
  • Journal of Applied Physics, Vol. 103, Issue 7
  • DOI: 10.1063/1.2830643

Exchange bias
journal, February 1999

Probing the A 1 to L 1 0 transformation in FeCuPt using the first order reversal curve method
journal, August 2014

  • Gilbert, Dustin A.; Liao, Jung-Wei; Wang, Liang-Wei
  • APL Materials, Vol. 2, Issue 8
  • DOI: 10.1063/1.4894197

Vortex Nucleation in Exchange Biased Magnetic Nanoelements
journal, June 2010

  • Dantas, Ana L.; Reboucas, G. O. G.; Carrico, A. S.
  • IEEE Transactions on Magnetics, Vol. 46, Issue 6
  • DOI: 10.1109/TMAG.2010.2040254

Effect of anisotropy on the critical antiferromagnet thickness in exchange-biased bilayers
journal, August 2002

First-order reversal curve diagram analysis of a perpendicular nickel nanopillar array
journal, April 2005

Field Evolution of Tilted Vortex Cores in Exchange-Biased Ferromagnetic Dots
journal, September 2006

Simultaneous in-plane and out-of-plane exchange bias using a single antiferromagnetic layer resolved by x-ray magnetic circular dichroism
journal, October 2009

  • Nogués, J.; Stepanow, S.; Bollero, A.
  • Applied Physics Letters, Vol. 95, Issue 15
  • DOI: 10.1063/1.3232213

Magnetic Vortex State Stability, Reversal and Dynamics in Restricted Geometries
journal, June 2008

  • Guslienko, K. Yu.
  • Journal of Nanoscience and Nanotechnology, Vol. 8, Issue 6
  • DOI: 10.1166/jnn.2008.003
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    • Nature Communications, Vol. 7, Issue 1
    • DOI: 10.1038/ncomms10293

    Magnetic bilayer-skyrmions without skyrmion Hall effect
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