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Title: Manipulation of competing ferromagnetic and antiferromagnetic domains in exchange-biased nanostructures

Abstract

In this work, using photoemission electron microscopy combined with x-ray magnetic circular dichroism we show that a progressive spatial confinement of a ferromagnet (FM), either through thickness variation or laterally via patterning, actively controls the domains of uncompensated spins in the antiferromagnet (AF) in exchange-biased systems. Direct observations of the spin structure in both sides of the FM/AF interface in a model system, Ni/FeF2, show that the spin structure is determined by the balance between the competing FM and AF magnetic energies. Coexistence of exchange bias domains, with opposite directions, can be established in Ni/FeF2 bilayers for Ni thicknesses below 10 nm. Patterning the Ni/FeF2 heterostructures with antidots destabilizes the FM state, enhancing the formation of opposite exchange bias domains below a critical antidot separation of the order of a few FeF2 crystal domains. The results suggest that dimensional confinement of the FM may be used to manipulate the AF spin structure in spintronic devices and ultrahigh-density information storage media. Lastly, the underlying mechanism of the uncompensated AF domain formation in Ni/FeF2 may be generic to other magnetic systems with complex noncollinear FM/AF spin structures.

Authors:
 [1];  [2];  [3];  [1];  [4];  [5];  [6];  [6];  [2];  [1];  [1]
+ Show Author Affiliations
  1. Universitat de Barcelona (Spain). Departament de Fisica Fonamental and Institut de Nanociencia i Nanotecnologia (IN2UB)
  2. University of California San Diego, La Jolla, CA (United States). Department of Physics and Center for Advanced Nanoscience
  3. University of the Basque Country, Leioa (Spain). Department of Chemical-Physics, BCMaterials; IKERBASQUE, Basque Foundation for Science (Spain)
  4. Institut de Microelectronica de Barcelona (Spain)
  5. Institut Catala de Nanociència i Nanotecnologia (Spain)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1378656
Alternate Identifier(s):
OSTI ID: 1226670
Grant/Contract Number:  
AC02-05CH11231; FG02-87ER45332
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 17; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Fraile Rodríguez, Arantxa, Basaran, Ali C., Morales, Rafael, Kovylina, Miroslavna, Llobet, Jordi, Borrisé, Xavier, Marcus, Matthew A., Scholl, Andreas, Schuller, Ivan K., Batlle, Xavier, and Labarta, Amílcar. Manipulation of competing ferromagnetic and antiferromagnetic domains in exchange-biased nanostructures. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.92.174417.
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Fraile Rodríguez, Arantxa, Basaran, Ali C., Morales, Rafael, Kovylina, Miroslavna, Llobet, Jordi, Borrisé, Xavier, Marcus, Matthew A., Scholl, Andreas, Schuller, Ivan K., Batlle, Xavier, & Labarta, Amílcar. Manipulation of competing ferromagnetic and antiferromagnetic domains in exchange-biased nanostructures. United States. https://doi.org/10.1103/PhysRevB.92.174417
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Fraile Rodríguez, Arantxa, Basaran, Ali C., Morales, Rafael, Kovylina, Miroslavna, Llobet, Jordi, Borrisé, Xavier, Marcus, Matthew A., Scholl, Andreas, Schuller, Ivan K., Batlle, Xavier, and Labarta, Amílcar. Fri . "Manipulation of competing ferromagnetic and antiferromagnetic domains in exchange-biased nanostructures". United States. https://doi.org/10.1103/PhysRevB.92.174417. https://www.osti.gov/servlets/purl/1378656.
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@article{osti_1378656,
title = {Manipulation of competing ferromagnetic and antiferromagnetic domains in exchange-biased nanostructures},
author = {Fraile Rodríguez, Arantxa and Basaran, Ali C. and Morales, Rafael and Kovylina, Miroslavna and Llobet, Jordi and Borrisé, Xavier and Marcus, Matthew A. and Scholl, Andreas and Schuller, Ivan K. and Batlle, Xavier and Labarta, Amílcar},
abstractNote = {In this work, using photoemission electron microscopy combined with x-ray magnetic circular dichroism we show that a progressive spatial confinement of a ferromagnet (FM), either through thickness variation or laterally via patterning, actively controls the domains of uncompensated spins in the antiferromagnet (AF) in exchange-biased systems. Direct observations of the spin structure in both sides of the FM/AF interface in a model system, Ni/FeF2, show that the spin structure is determined by the balance between the competing FM and AF magnetic energies. Coexistence of exchange bias domains, with opposite directions, can be established in Ni/FeF2 bilayers for Ni thicknesses below 10 nm. Patterning the Ni/FeF2 heterostructures with antidots destabilizes the FM state, enhancing the formation of opposite exchange bias domains below a critical antidot separation of the order of a few FeF2 crystal domains. The results suggest that dimensional confinement of the FM may be used to manipulate the AF spin structure in spintronic devices and ultrahigh-density information storage media. Lastly, the underlying mechanism of the uncompensated AF domain formation in Ni/FeF2 may be generic to other magnetic systems with complex noncollinear FM/AF spin structures.},
doi = {10.1103/PhysRevB.92.174417},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 17,
volume = 92,
place = {United States},
year = {Fri Nov 20 00:00:00 EST 2015},
month = {Fri Nov 20 00:00:00 EST 2015}
}
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https://doi.org/10.1103/PhysRevB.92.174417
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Works referenced in this record:

Lateral length scales in exchange bias
journal, July 2005

Magnetization depth dependence in exchange biased thin films
journal, August 2006

  • Morales, R.; Li, Zhi-Pan; Petracic, O.
  • Applied Physics Letters, Vol. 89, Issue 7
  • DOI: 10.1063/1.2336742

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

Room Temperature Electrical Manipulation of Giant Magnetoresistance in Spin Valves Exchange-Biased with BiFeO 3
journal, February 2012

  • Allibe, Julie; Fusil, Stéphane; Bouzehouane, Karim
  • Nano Letters, Vol. 12, Issue 3
  • DOI: 10.1021/nl202537y

Magnetization reversal of uncompensated Fe moments in exchange biased Ni∕FeF2 bilayers
journal, February 2006

  • Arenholz, Elke; Liu, Kai; Li, Zhipan
  • Applied Physics Letters, Vol. 88, Issue 7
  • DOI: 10.1063/1.2173716

The fabrication of ordered arrays of exchange biased Ni/FeF 2 nanostructures
journal, April 2010

Parallel versus Antiparallel Interfacial Coupling in Exchange Biased Co / FeF 2
journal, January 2006

Absolute Spin Magnetic Moment of FeF 2 from High Energy Photon Diffraction
journal, April 2001

Sign dependence of the x-ray magnetic linear dichroism on the antiferromagnetic spin axis in La Fe O 3 thin films
journal, January 2006

Antiferromagnetic/ferromagnetic nanostructures for multidigit storage units
journal, January 2014

  • Morales, R.; Kovylina, M.; Schuller, Ivan K.
  • Applied Physics Letters, Vol. 104, Issue 3
  • DOI: 10.1063/1.4862317

Spin waves in antiferromagnetic FeF 2
journal, February 1970

  • Hutchings, M. T.; Rainford, B. D.; Guggenheim, H. J.
  • Journal of Physics C: Solid State Physics, Vol. 3, Issue 2
  • DOI: 10.1088/0022-3719/3/2/013

Temperature Dependence of the Fe 57 hfs in Fe F 2 below the Néel Temperature
journal, September 1967

Cryogenic PEEM at the Advanced Light Source
journal, October 2012

  • Doran, Andrew; Church, Matthew; Miller, Tom
  • Journal of Electron Spectroscopy and Related Phenomena, Vol. 185, Issue 10
  • DOI: 10.1016/j.elspec.2012.05.005

Exchange-bias systems with compensated interfaces
journal, December 1999

  • Kiwi, Miguel; Mejı́a-López, José; Portugal, Ruben D.
  • Applied Physics Letters, Vol. 75, Issue 25
  • DOI: 10.1063/1.125517

Positive Exchange Bias in Fe F 2 -Fe Bilayers
journal, June 1996

Exchange bias theory
journal, September 2001

Exchange bias in nanostructures
journal, December 2005

A new paradigm for exchange bias in polycrystalline thin films
journal, April 2010

  • O’Grady, K.; Fernandez-Outon, L. E.; Vallejo-Fernandez, G.
  • Journal of Magnetism and Magnetic Materials, Vol. 322, Issue 8
  • DOI: 10.1016/j.jmmm.2009.12.011

X-ray photoemission electron microscopy, a tool for the investigation of complex magnetic structures (invited)
journal, March 2002

  • Scholl, Andreas; Ohldag, Hendrik; Nolting, Frithjof
  • Review of Scientific Instruments, Vol. 73, Issue 3
  • DOI: 10.1063/1.1445485

Role of interfacial structure on exchange-biased FeF 2 − Fe
journal, March 1999

Magnetization reversal in Ni/FeF 2 heterostructures with the coexistence of positive and negative exchange bias
journal, December 2012

New type of domain walls: Domain walls caused by frustrations in multilayer magnetic nanostructures
journal, March 2004

  • Morosov, A. I.; Sigov, A. S.
  • Physics of the Solid State, Vol. 46, Issue 3
  • DOI: 10.1134/1.1687851

Images of the Antiferromagnetic Structure of a NiO(100) Surface by Means of X-Ray Magnetic Linear Dichroism Spectromicroscopy
journal, August 1999

Angular dependence of exchange anisotropy on the cooling field in ferromagnet/fluoride thin films
journal, January 2006

Depth Profile of Uncompensated Spins in an Exchange Bias System
journal, July 2005

Tuning Exchange Bias in Core/Shell FeO/Fe 3 O 4 Nanoparticles
journal, December 2011

  • Sun, Xiaolian; Frey Huls, Natalie; Sigdel, Aruna
  • Nano Letters, Vol. 12, Issue 1
  • DOI: 10.1021/nl2034514

Three-dimensional spin structure in exchange-biased antiferromagnetic/ferromagnetic thin films
journal, August 2009

  • Morales, R.; Vélez, M.; Petracic, O.
  • Applied Physics Letters, Vol. 95, Issue 9
  • DOI: 10.1063/1.3216055

Consequences of Spin-Flop Coupling in Exchange Biased Films
journal, November 1998

Mirror symmetry in magnetization reversal and coexistence of positive and negative exchange bias in Ni/FeF2
journal, April 2011

  • Kovylina, M.; Erekhinsky, M.; Morales, R.
  • Applied Physics Letters, Vol. 98, Issue 15
  • DOI: 10.1063/1.3577648

Exchange bias flop in Fe x Zn 1 − x F 2 / Co bilayers
journal, September 2002

Positive exchange-bias induced by interface domain wall quenching in Gd Fe ∕ Tb Fe films
journal, April 2006

Exchange bias
journal, February 1999

Simple model for thin ferromagnetic films exchange coupled to an antiferromagnetic substrate
journal, October 1987

  • Mauri, D.; Siegmann, H. C.; Bagus, P. S.
  • Journal of Applied Physics, Vol. 62, Issue 7
  • DOI: 10.1063/1.339367

The Crystal Structure of MnF 2 , FeF 2 , CoF 2 , NiF 2 and ZnF 2
journal, November 1954

  • Stout, J. W.; Reed, Stanley A.
  • Journal of the American Chemical Society, Vol. 76, Issue 21
  • DOI: 10.1021/ja01650a005

Tuning exchange bias in Ni/FeF2 heterostructures using antidot arrays
journal, October 2009

  • Kovylina, M.; Erekhinsky, M.; Morales, R.
  • Applied Physics Letters, Vol. 95, Issue 15
  • DOI: 10.1063/1.3248306

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

Interfacial Uncompensated Antiferromagnetic Spins: Role in Unidirectional Anisotropy in Polycrystalline Ni 81 Fe 19 / CoO Bilayers
journal, August 1997

Critical behavior in anisotropic antiferromagnets
journal, February 1983

Relevance of length scales in exchange biased submicron dots
journal, April 2009

  • Li, Zhi-Pan; Morales, R.; Schuller, Ivan K.
  • Applied Physics Letters, Vol. 94, Issue 14
  • DOI: 10.1063/1.3114372

Random-field model of exchange anisotropy at rough ferromagnetic-antiferromagnetic interfaces
journal, March 1987

Bidomain state in exchange biased FeF2∕Ni
journal, November 2005

  • Petracic, O.; Li, Zhi-Pan; Roshchin, Igor V.
  • Applied Physics Letters, Vol. 87, Issue 22
  • DOI: 10.1063/1.2138357

Exchange bias in Fe0.6Zn0.4F2/Fe heterostructures
journal, February 2002

Antiferromagnetic domain size and exchange bias
journal, June 2008

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    Works referencing / citing this record:

    Multifunctional Magnetic Nanostructures: Exchange Bias Model and Applications
    book, January 2017

    Ferroelectric strain modulation of antiferromagnetic moments in Ni/NiO ferromagnet/antiferromagnet heterostructures
    journal, May 2017

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