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Title: Exchange bias and bistable magneto-resistance states in amorphous TbFeCo thin films

Abstract

Amorphous TbFeCo thin films sputter deposited at room temperature on thermally oxidized Si substrate are found to exhibit strong perpendicular magnetic anisotropy. Atom probe tomography, scanning transmission electron microscopy, and energy dispersive X-ray spectroscopy mapping have revealed two nanoscale amorphous phases with different Tb atomic percentages distributed within the amorphous film. Exchange bias accompanied by bistable magneto-resistance states has been uncovered near room temperature by magnetization and magneto-transport measurements. The exchange anisotropy originates from the exchange interaction between the ferrimagnetic and ferromagnetic components corresponding to the two amorphous phases. Here, this study provides a platform for exchange bias and magneto-resistance switching using single-layer amorphous ferrimagnetic thin films that require no epitaxial growth.

Authors:
 [1];  [1];  [2];  [3]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [1]
+ Show Author Affiliations
  1. Univ. of Virginia, Charlottesville, VA (United States). Dept. of Physics
  2. Univ. of Virginia, Charlottesville, VA (United States). Dept. of of Materials Science and Engineering
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Physical and Computational Sciences Directorate
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; Defense Threat Reduction Agency (DTRA)
OSTI Identifier:
1454741
Alternate Identifier(s):
OSTI ID: 1234173
Report Number(s):
PNNL-SA-113796
Journal ID: ISSN 0003-6951; APPLAB
Grant/Contract Number:  
HDTRA 1-11-1-0024; AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 1; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Li, Xiaopu, Ma, Chung T., Lu, Jiwei, Devaraj, Arun, Spurgeon, Steven R., Comes, Ryan B., and Poon, S. Joseph. Exchange bias and bistable magneto-resistance states in amorphous TbFeCo thin films. United States: N. p., 2016. Web. doi:10.1063/1.4939240.
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Li, Xiaopu, Ma, Chung T., Lu, Jiwei, Devaraj, Arun, Spurgeon, Steven R., Comes, Ryan B., & Poon, S. Joseph. Exchange bias and bistable magneto-resistance states in amorphous TbFeCo thin films. United States. https://doi.org/10.1063/1.4939240
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Li, Xiaopu, Ma, Chung T., Lu, Jiwei, Devaraj, Arun, Spurgeon, Steven R., Comes, Ryan B., and Poon, S. Joseph. Mon . "Exchange bias and bistable magneto-resistance states in amorphous TbFeCo thin films". United States. https://doi.org/10.1063/1.4939240. https://www.osti.gov/servlets/purl/1454741.
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@article{osti_1454741,
title = {Exchange bias and bistable magneto-resistance states in amorphous TbFeCo thin films},
author = {Li, Xiaopu and Ma, Chung T. and Lu, Jiwei and Devaraj, Arun and Spurgeon, Steven R. and Comes, Ryan B. and Poon, S. Joseph},
abstractNote = {Amorphous TbFeCo thin films sputter deposited at room temperature on thermally oxidized Si substrate are found to exhibit strong perpendicular magnetic anisotropy. Atom probe tomography, scanning transmission electron microscopy, and energy dispersive X-ray spectroscopy mapping have revealed two nanoscale amorphous phases with different Tb atomic percentages distributed within the amorphous film. Exchange bias accompanied by bistable magneto-resistance states has been uncovered near room temperature by magnetization and magneto-transport measurements. The exchange anisotropy originates from the exchange interaction between the ferrimagnetic and ferromagnetic components corresponding to the two amorphous phases. Here, this study provides a platform for exchange bias and magneto-resistance switching using single-layer amorphous ferrimagnetic thin films that require no epitaxial growth.},
doi = {10.1063/1.4939240},
journal = {Applied Physics Letters},
number = 1,
volume = 108,
place = {United States},
year = {Mon Jan 04 00:00:00 EST 2016},
month = {Mon Jan 04 00:00:00 EST 2016}
}
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https://doi.org/10.1063/1.4939240
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Works referenced in this record:

Exchange bias effect in the martensitic state of Ni-Co-Mn-Sn film
journal, June 2013

  • Machavarapu, Ramudu; Jakob, Gerhard
  • Applied Physics Letters, Vol. 102, Issue 23
  • DOI: 10.1063/1.4811164

Phase separation in immiscible silver–copper alloy thin films
journal, July 2009

  • Nag, Soumya; Mahdak, Kristopher C.; Devaraj, Arun
  • Journal of Materials Science, Vol. 44, Issue 13
  • DOI: 10.1007/s10853-009-3449-0

Crystallographically amorphous ferrimagnetic alloys: Comparing a localized atomistic spin model with experiments
journal, July 2011

Size and shape dependence of the exchange-bias field in exchange-coupled ferrimagnetic bilayers
journal, May 2005

Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins
journal, March 2011

Extraordinary Hall resistivity in amorphous terbium–iron thin films and its temperature dependence
journal, September 1983

  • Malmhäll, R.
  • Journal of Applied Physics, Vol. 54, Issue 9
  • DOI: 10.1063/1.332735

Thermally Assisted All-Optical Helicity Dependent Magnetic Switching in Amorphous Fe 100- x Tb x Alloy Films
journal, April 2013

  • Hassdenteufel, Alexander; Hebler, Birgit; Schubert, Christian
  • Advanced Materials, Vol. 25, Issue 22
  • DOI: 10.1002/adma.201300176

Microstructure and magnetism in amorphous rare‐earth–transition‐metal thin films. I. Microstructure
journal, June 1978

  • Leamy, H. J.; Dirks, A. G.
  • Journal of Applied Physics, Vol. 49, Issue 6
  • DOI: 10.1063/1.325249

Design of compensated ferrimagnetic Heusler alloys for giant tunable exchange bias
journal, March 2015

  • Nayak, Ajaya K.; Nicklas, Michael; Chadov, Stanislav
  • Nature Materials, Vol. 14, Issue 7
  • DOI: 10.1038/nmat4248

Contributions of electron and phonon transport to the thermal conductivity of GdFeCo and TbFeCo amorphous rare-earth transition-metal alloys
journal, May 2012

  • Hopkins, Patrick E.; Ding, Manli; Poon, Joseph
  • Journal of Applied Physics, Vol. 111, Issue 10
  • DOI: 10.1063/1.4722231

Columnar microstructure in vapor-deposited thin films
journal, December 1977

Temperature dependence of large exchange-bias in TbFe-Co/Pt
journal, November 2012

  • Romer, S.; Marioni, M. A.; Thorwarth, K.
  • Applied Physics Letters, Vol. 101, Issue 22
  • DOI: 10.1063/1.4767142

The microstructure of sputter‐deposited coatings
journal, November 1986

  • Thornton, John A.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 4, Issue 6
  • DOI: 10.1116/1.573628

Exchange-biased spin-valves for magnetic storage
journal, July 1996

  • Kools, J. C. S.
  • IEEE Transactions on Magnetics, Vol. 32, Issue 4
  • DOI: 10.1109/20.508381

Correlation between antiferromagnetic interface coupling and positive exchange bias
journal, January 2000

Laser assisted crystallization of ferromagnetic amorphous ribbons: A multimodal characterization and thermal model study
journal, November 2013

  • Katakam, Shravana; Devaraj, Arun; Bowden, Mark
  • Journal of Applied Physics, Vol. 114, Issue 18
  • DOI: 10.1063/1.4829279

Exchange bias effect in martensitic epitaxial Ni-Mn-Sn thin films applied to pin CoFeB/MgO/CoFeB magnetic tunnel junctions
journal, May 2015

  • Teichert, N.; Boehnke, A.; Behler, A.
  • Applied Physics Letters, Vol. 106, Issue 19
  • DOI: 10.1063/1.4921080

Extraordinary Hall effect (EHE) of ferromagnetic composites in the effective medium approximation
journal, September 1994

  • Granovsky, A. B.; Vedyayev, A. V.; Brouers, F.
  • Journal of Magnetism and Magnetic Materials, Vol. 136, Issue 1-2
  • DOI: 10.1016/0304-8853(94)90469-3

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

Observation of giant exchange anisotropy
journal, May 1988

  • Webb, D. J.; Marshall, A. F.; Toxen, A. M.
  • IEEE Transactions on Magnetics, Vol. 24, Issue 3
  • DOI: 10.1109/20.3392

Exchange bias in nanostructures
journal, December 2005

The Magnetic Stability of Spin-Dependent Tunneling Devices
journal, August 1998

Magnetic and magneto‐optical properties of rare‐earth transition‐metal alloys containing Gd, Tb, Fe, Co
journal, July 1989

  • Hansen, P.; Clausen, C.; Much, G.
  • Journal of Applied Physics, Vol. 66, Issue 2
  • DOI: 10.1063/1.343551

Strain-induced enhancement of coercivity in amorphous TbFeCo films
journal, January 2013

  • Anuniwat, Nattawut; Ding, Manli; Poon, S. J.
  • Journal of Applied Physics, Vol. 113, Issue 4
  • DOI: 10.1063/1.4788807

Engineered materials for all-optical helicity-dependent magnetic switching
journal, February 2014

  • Mangin, S.; Gottwald, M.; Lambert, C-H.
  • Nature Materials, Vol. 13, Issue 3
  • DOI: 10.1038/nmat3864

Exchange biasing of magnetoelectric composites
journal, April 2012

  • Lage, Enno; Kirchhof, Christine; Hrkac, Viktor
  • Nature Materials, Vol. 11, Issue 6
  • DOI: 10.1038/nmat3306

De-vitrification of nanoscale phase-separated amorphous thin films in the immiscible copper–niobium system
journal, April 2014

Microstructure of multistage annealed nanocrystalline SmCo 2 Fe 2 B alloy with enhanced magnetic properties
journal, February 2014

  • Jiang, Xiujuan; Devaraj, Arun; Balamurugan, B.
  • Journal of Applied Physics, Vol. 115, Issue 6
  • DOI: 10.1063/1.4865298

Tuning the magnetic coupling across ultrathin antiferromagnetic films by controlling atomic-scale roughness
journal, January 2006

  • Kuch, W.; Chelaru, L. I.; Offi, F.
  • Nature Materials, Vol. 5, Issue 2
  • DOI: 10.1038/nmat1548

Spin transfer switching in TbCoFe∕CoFeB∕MgO∕CoFeB∕TbCoFe magnetic tunnel junctions with perpendicular magnetic anisotropy
journal, April 2008

  • Nakayama, Masahiko; Kai, Tadashi; Shimomura, Naoharu
  • Journal of Applied Physics, Vol. 103, Issue 7
  • DOI: 10.1063/1.2838335

All-optical helicity dependent magnetic switching in an artificial zero moment magnet
journal, February 2014

  • Schubert, C.; Hassdenteufel, A.; Matthes, P.
  • Applied Physics Letters, Vol. 104, Issue 8
  • DOI: 10.1063/1.4866803

Tuning exchange bias
journal, October 1999

  • Miltényi, P.; Gierlings, M.; Bamming, M.
  • Applied Physics Letters, Vol. 75, Issue 15
  • DOI: 10.1063/1.124998

Exchange bias behavior in Ni–Mn–Sb Heusler alloys
journal, August 2007

  • Khan, Mahmud; Dubenko, Igor; Stadler, Shane
  • Applied Physics Letters, Vol. 91, Issue 7
  • DOI: 10.1063/1.2772233

Robust antiferromagnetic coupling in hard-soft bi-magnetic core/shell nanoparticles
journal, December 2013

  • Estrader, M.; López-Ortega, A.; Estradé, S.
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms3960

Ultrafast spin dynamics across compensation points in ferrimagnetic GdFeCo : The role of angular momentum compensation
journal, June 2006

Beating the superparamagnetic limit with exchange bias
journal, June 2003

  • Skumryev, Vassil; Stoyanov, Stoyan; Zhang, Yong
  • Nature, Vol. 423, Issue 6942
  • DOI: 10.1038/nature01687

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

Nanoscale phase separation in epitaxial Cr-Mo and Cr-V alloy thin films studied using atom probe tomography: Comparison of experiments and simulation
journal, November 2014

  • Devaraj, A.; Kaspar, T. C.; Ramanan, S.
  • Journal of Applied Physics, Vol. 116, Issue 19
  • DOI: 10.1063/1.4901465

Hall effect in rare‐earth–transition‐metal amorphous alloy films
journal, July 1976

  • Mimura, Y.; Imamura, N.; Kushiro, Y.
  • Journal of Applied Physics, Vol. 47, Issue 7
  • DOI: 10.1063/1.323098

Antisymmetric Magnetoresistance in Magnetic Multilayers with Perpendicular Anisotropy
journal, January 2005

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    Works referencing / citing this record:

    Thickness dependence of ferrimagnetic compensation in amorphous rare-earth transition-metal thin films
    journal, October 2018

    • Ma, Chung Ting; Kirby, Brian J.; Li, Xiaopu
    • Applied Physics Letters, Vol. 113, Issue 17
    • DOI: 10.1063/1.5050626

    Giant exchange bias effect in all-3 d -metal Ni 38.8 Co 2.9 Mn 37.9 Ti 20.4 thin film
    journal, January 2020

    • Liu, K.; Ma, S. C.; Zhang, Z. S.
    • Applied Physics Letters, Vol. 116, Issue 2
    • DOI: 10.1063/1.5129878

    Three-dimensional nanoscale characterisation of materials by atom probe tomography
    journal, November 2016

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