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Atomic Scale Structure Of Sputtered Metal Multilayers

X. Zhou, H. Wadley, R. Johnson, D. J. Larson, N. Tabat, A. Cerezo, A. Petford-Long, G. Smith, P. Clifton, R. Martens, T. Kelly
Published 2001 · Materials Science

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A combined theoretical and experimental approach has been used to study nanoscale CoFe/Cu/CoFe multilayer films grown by sputter deposition. Such films have applications in sensors that utilize the giant magnetoresistance effect, for example, read heads in high-density information storage devices. Atomistic simulations based on a molecular dynamics approach and an alloy form of the embedded atom method have been developed to accurately model the sputter deposition of the CoFe/Cu/CoFe multilayers. The simulations show that relatively flat interfaces are formed because of the energetic deposition conditions. However, significant intermixing at the CoFe-on-Cu interface, but not at the Cu-on-CoFe interface, was observed. An abnormal Fe depletion zone is also revealed at the CoFe-on-Cu interface. A three-dimensional atom probe method has been used for a nanoscale chemical analysis of the films. It provided direct verification of the simulations. The simulations have then been used to understand the mechanism responsible for the formation of the intermixing defects observed in the multilayers. A novel deposition technique is proposed which reduces both interfacial mixing and Fe depletion by controlling the incident adatom energies.
This paper references
10.1016/0304-8853(93)91227-X
The role of interfaces in NiFe/Cu/NiFe spin values
J. Nozieres (1993)
10.1016/0304-8853(94)01040-4
The role of interface impurities in Co/Cu giant magnetoresistance multilayers
K. P. Wellock (1995)
10.1063/1.372589
Atom probe analysis of planar multilayer structures
D. J. Larson (2000)
10.1063/1.328693
Polymorphic transitions in single crystals: A new molecular dynamics method
M. Parrinello (1981)
10.1016/S0304-8853(96)00609-9
Optimization of giant magnetoresistance in ion beam sputtered Co/Cu multilayers
S. Schmeusser (1997)
10.1007/s100050010058
Advances in Atom Probe Specimen Fabrication from Planar Multilayer Thin Film Structures.
D. J. Larson (2001)
10.1103/PHYSREVB.55.8390
Nanostructural considerations in giant magnetoresistive Co-Cu-based symmetric spin valves
H. D. Chopra (1997)
10.1103/PHYSREVB.50.9957
Relation between interface roughness and giant magnetoresistance in MBE-grown polycrystalline Fe/Cr superlattices.
Beliën (1994)
10.1016/0304-8853(95)00507-2
Spin-dependent scattering and giant magnetoresistance
W. Butler (1995)
10.1016/S0079-6425(00)00009-8
Mechanisms, models and methods of vapor deposition
H. Wadley (2001)
10.1063/1.359565
EFFECT OF ENERGETIC PARTICLE BOMBARDMENT DURING SPUTTER DEPOSITION ON THE PROPERTIES OF EXCHANGE-BIASED SPIN-VALVE MULTILAYERS
J. Kools (1995)
10.1063/1.356727
Giant magnetoresistance with low saturation field in (NixCo100−x/Cu) multilayers
X. Bian (1994)
10.1103/PHYSREVLETT.71.1641
Origin of enhanced magnetoresistance of magnetic multilayers: Spin-dependent scattering from magnetic interface states.
Parkin (1993)
10.1088/0022-3727/32/16/201
Electron microscopy studies of spin-valve materials
X. Portier (1999)
10.1016/0304-8853(94)01571-6
Composition dependence of giant magnetoresistance effect in NiFeCo/Cu multilayers
K. Meguro (1995)
10.1016/0304-8853(94)00587-7
Current understanding and open questions on giant magnetoresistance
Peter M. Levy (1995)
10.1063/1.104765
Giant magnetoresistance in antiferromagnetic Co/Cu multilayers
S. Parkin (1991)
10.1016/S1359-6454(96)00256-X
A Monte Carlo simulation of the physical vapor deposition of nickel
Y. Yang (1997)
10.1016/0304-8853(95)00085-2
Giant magnetoresistance in highly oriented sputter deposited (111) Co/Cu multilayers
R. Pollard (1995)
10.1103/PHYSREVB.29.6443
Embedded-atom method: Derivation and application to impurities, surfaces, and other defects in metals
M. Daw (1984)
10.1016/0304-8853(91)90310-7
Magnetoresistance of Fe/Cr superlattices
F. Petroff (1991)
10.1063/1.358135
Magnetic structure of the spin valve interface
D. M. Nicholson (1994)
10.1016/0304-8853(93)90643-G
Giant magnetoresistance in Co/Cu multilayers sputter-deposited on glass substrates
S. Honda (1993)
10.1063/1.127099
Atomic-scale analysis of CoFe/Cu and CoFe/NiFe interfaces
D. J. Larson (2000)
10.1103/PHYSREVLETT.61.2472
Giant magnetoresistance of (001)Fe/(001)Cr magnetic superlattices.
Baibich (1988)
10.1063/1.1148477
Performance of an energy-compensated three-dimensional atom probe
A. Cerezo (1998)
10.1063/1.368297
Atomistic simulations of the vapor deposition of Ni/Cu/Ni multilayers: The effects of adatom incident energy
X. Zhou (1998)
10.1103/PHYSREVLETT.66.2152
Oscillatory magnetic exchange coupling through thin copper layers.
Parkin (1991)
10.1103/PHYSREVB.56.8970
CALCULATION OF CONDUCTIVITY IN THE PRESENCE OF STRUCTURAL DEFECTS : APPLICATION TO SPIN DEPENDENCE OF CONDUCTIVITY IN COBALT
T. Schulthess (1997)
10.1016/S1044-5803(99)00064-9
Atom Probe Field Ion Microscopy
M. Miller (1996)
10.1063/1.356725
Low field giant magnetoresistance in discontinuous magnetic multilayers
T. L. Hylton (1994)
10.1143/JJAP.32.1097
Effects of Fe Buffer Layer Thickness on Magnetoresistance in Ni-Fe/Cu Multilayers
Toshiyuki Dei (1993)
10.1103/PHYSREVB.39.12554
Alloy models with the embedded-atom method.
M. Johnson (1989)



This paper is referenced by
10.1016/j.jmgm.2020.107655
Molecular dynamics study of tensile behaviour for cold and linear friction welded single crystal tungsten.
R. Singh (2020)
10.1088/0022-3727/43/21/215004
Influence of Co layer thickness on the structural and magnetic properties of ({{\rm Pt}/{\rm Co}_{t{_{{\rm Co}}}}})_{\rm 3} /{\rm Pt}_{t_{{\rm Pt}}}/{\rm IrMn} multilayers
A. Zarefy (2010)
10.1016/J.ACTAMAT.2011.11.041
Gliding at interface during thin film buckling: A coupled atomistic/elastic approach
A. Ruffini (2012)
10.1016/J.JMMM.2019.165570
On the conditions for ordered hexagonal mm2 Co3Pt
Xiao Lu (2019)
10.1016/J.JCRYSGRO.2007.01.010
Low-energy ion-assisted control of interfacial structures in metallic multilayers
J. Quan (2007)
10.1016/J.COMMATSCI.2006.10.006
Transient hole formation during the growth of thin metal oxide layers
X. Zhou (2007)
10.1557/PROC-1086-U08-29
Simulations of an Interface Crack Nucleation During Nanoindentaion : Molecular Dynamics and Finite Element Coupling Approach
S. Hara (2008)
10.4028/www.scientific.net/DDF.312-315.149
Diffusion of Hydrogen in Amorphous Ni-Zr Alloys
E. A. Pastukhov (2011)
10.1016/J.PROENG.2017.09.795
Atomistic Simulations of Elastic-Plastic Deformation in Nickel Single Crystal under Shock Loading
Liu Hai (2017)
10.1039/c8nr00271a
Grain boundary phases in bcc metals.
T. Frolov (2018)
10.1142/S0217979210064241
Computational Study of Tensile Deformation of a Constrained Nanoscale Metallic Glass
J. Pang (2010)
10.1063/1.4873437
Solid-state dimer method for calculating solid-solid phase transitions.
P. Xiao (2014)
10.1088/0022-3727/45/27/275001
Effects of sputter-deposition-induced and post-deposition thermally activated intermixing on the exchange bias properties of [Pt/Co]×3/(Pt)/IrMn films
F. Letellier (2012)
10.1016/J.JNONCRYSOL.2013.05.004
Molecular dynamics simulation studies of structural and dynamical properties of rapidly quenched Al
B. Shen (2014)
10.1016/J.COMMATSCI.2016.08.032
Shock wave sintering of Al/SiC metal matrix nano-composites: A molecular dynamics study
M. Tavakol (2016)
10.1007/978-3-319-42913-7_29-1
Off-Lattice Kinetic Monte Carlo Methods
M. Trochet (2018)
10.1073/pnas.1919136117
Unusual activated processes controlling dislocation motion in body-centered-cubic high-entropy alloys
B. Chen (2020)
10.1088/0953-8984/17/23/014
A charge transfer ionic–embedded atom method potential for the O–Al–Ni–Co–Fe system
X. Zhou (2005)
10.1016/J.SCRIPTAMAT.2006.02.008
The effect of Cu interlayers on grain size and stress in sputtered Fe–Cu multilayered thin films
N. R. Shamsutdinov (2006)
10.1016/J.JMMM.2006.10.1102
Structural investigation of TbCo2/Fe magnetostrictive thin films by tomographic atom probe and Mössbauer spectrometry
A. Grenier (2007)
10.1103/PHYSREVB.80.035404
First-principles-based embedded atom method for PdAu nanoparticles
B. Shan (2009)
10.1007/978-3-642-03307-0_3
Atomic/Molecular-Level Simulations of Laser–Materials Interactions
L. Zhigilei (2010)
10.1103/PHYSREVB.73.174410
Temperature dependence of giant magnetoresistance and magnetic properties in electrodeposited Co − Cu ∕ Cu multilayers: The role of superparamagnetic regions
L. P'eter (2006)
10.1016/j.pnsc.2020.07.001
Influence of composition and size on the thermodynamic stability and structural evolution of CuAlNi nanoclusters
Q. Liu (2020)
10.1016/J.CALPHAD.2017.09.005
Second nearest-neighbor modified embedded-atom method interatomic potentials for the Pt-M (M = Al, Co, Cu, Mo, Ni, Ti, V) binary systems
Jinsoo Kim (2017)
10.1088/1742-6596/574/1/012045
Modeling contact formation between atomic-sized gold tips via molecular dynamics
W. Dednam (2015)
10.1016/J.JNUCMAT.2016.12.010
Identifying self-interstitials of bcc and fcc crystals in molecular dynamics
S. Bukkuru (2017)
10.1007/978-3-319-05987-7_2
Molecular Dynamics Simulations of Laser-Materials Interactions: General and Material-Specific Mechanisms of Material Removal and Generation of Crystal Defects
E. T. Karim (2014)
10.1016/J.TSF.2005.10.012
Atom probe characterization of nanomagnetic materials
D. J. Larson (2006)
10.2320/MATERTRANS.MF200602
Development of Interatomic Potential for Zr-Ni Amorphous Systems
T. Kumagai (2007)
10.1063/1.2816227
Formation mechanism and composition distribution of FePt nanoparticles
C. Srivastava (2007)
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