We have exploited the pseudomorphic growth of the magnetically soft Fe3Pt phase on top of L10-FePt to obtain fully epitaxial soft/hard nanocomposites on both MgO(100) and SrTiO3(100). The magnetic properties of this new nanocomposite system, driven by the soft/hard exchange-coupling, can be tailored by varying soft phase thickness, soft phase magnetic anisotropy and substrate. Coercivity is strongly reduced by the addition of the soft phase, a reduction which is definitely affected by the nominal composition of the soft phase and by the substrate choice; similarly is the magnetic phase diagram of the composite system. Coercive field decreases down to 21% of the hard layer value for Fe3Pt(5 nm)/FePt(3.55 nm) nanocomposites on SrTiO3; this maximum coercivity reduction was obtained with a nominal atomic content of Fe in the soft phase of 80%.
Skip Nav Destination
Article navigation
28 February 2015
Research Article|
February 24 2015
Epitaxial Fe3Pt/FePt nanocomposites on MgO and SrTiO3
F. Casoli;
F. Casoli
a)
1
IMEM-CNR
, Parco Area delle Scienze 37/A, Parma, I-43124, Italy
Search for other works by this author on:
P. Lupo;
P. Lupo
b)
2Information Storage Materials Laboratory, Department of Electrical and Computer Engineering,
National University of Singapore
, Singapore 117576, Singapore
Search for other works by this author on:
L. Nasi;
L. Nasi
1
IMEM-CNR
, Parco Area delle Scienze 37/A, Parma, I-43124, Italy
Search for other works by this author on:
R. Cabassi;
R. Cabassi
1
IMEM-CNR
, Parco Area delle Scienze 37/A, Parma, I-43124, Italy
Search for other works by this author on:
S. Fabbrici;
S. Fabbrici
1
IMEM-CNR
, Parco Area delle Scienze 37/A, Parma, I-43124, Italy
Search for other works by this author on:
F. Bolzoni;
F. Bolzoni
1
IMEM-CNR
, Parco Area delle Scienze 37/A, Parma, I-43124, Italy
Search for other works by this author on:
P. Ranzieri;
P. Ranzieri
1
IMEM-CNR
, Parco Area delle Scienze 37/A, Parma, I-43124, Italy
Search for other works by this author on:
F. Albertini
F. Albertini
1
IMEM-CNR
, Parco Area delle Scienze 37/A, Parma, I-43124, Italy
Search for other works by this author on:
a)
Author to whom correspondence should be addressed. Electronic mail: casoli@imem.cnr.it
b)
This research was performed while P. Lupo was at IMEM-CNR, Parco Area delle Scienze 37/A, Parma I-43124, Italy.
J. Appl. Phys. 117, 083906 (2015)
Article history
Received:
November 06 2014
Accepted:
February 10 2015
Citation
F. Casoli, P. Lupo, L. Nasi, R. Cabassi, S. Fabbrici, F. Bolzoni, P. Ranzieri, F. Albertini; Epitaxial Fe3Pt/FePt nanocomposites on MgO and SrTiO3. J. Appl. Phys. 28 February 2015; 117 (8): 083906. https://doi.org/10.1063/1.4913292
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
Citing articles via
A step-by-step guide to perform x-ray photoelectron spectroscopy
Grzegorz Greczynski, Lars Hultman
GaN-based power devices: Physics, reliability, and perspectives
Matteo Meneghini, Carlo De Santi, et al.
Related Content
Shock Compression of FePt and FePt/Fe3Pt Nanoparticles: Exchange‐Coupled Nanocomposite Magnets
AIP Conference Proceedings (July 2006)
Dual phase transformation and resultant magnetic properties in Fe3Pt thin films
J. Appl. Phys. (February 2012)
Anomalous metamagnetic-like transition in a FeRh/Fe3Pt interface occurring at T ≈ 120 K in the field-cooled-cooling curves for low magnetic fields
AIP Advances (September 2012)
Experimental measurements of the heats of formation of Fe3Pt, FePt, and FePt3 using differential scanning calorimetry
J. Appl. Phys. (July 2011)
Neutron diffraction study on very high elastic strain of 6% in an Fe3Pt under compressive stress
Appl. Phys. Lett. (June 2014)