Interplay between magnetic anisotropies in CoAu and Co films and antidot arrays: effects on the spin configuration and hysteretic behavior. Spizzo, F, Del Bianco, L, Coïsson, M, Chinni, F, Mattarello, V, Maurizio, C, & Mattei, G PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 20:16835-16846–16846, ROYAL SOC CHEMISTRY, 2018. doi abstract bibtex We studied (i) a set of three Co: Au continuous films, grown by sputtering co-deposition (B80 nm thick) with concentration ratios of 2 : 1, 1 : 1 and 1 : 0 (i.e., a pure Co film was also included), and (ii) a corresponding set of antidot arrays, produced by nanosphere lithography with the same hexagonal pattern (nominal lattice periodicity B520 nm). The samples were investigated by atomic and magnetic force microscopy and SQUID magnetometry. A twofold aim was fulfilled: to gain information on the magnetism of the CoAu compound (saturation magnetization, effective in-plane and out-of-plane anisotropy, exchange stiffness constant and magnetostrictive behavior) and to compare the magnetic behavior of the continuous and patterned samples. The continuous films exhibited a variety of hysteretic behaviours and magnetic configurations, ruled by the interplay between different magnetic anisotropy terms (magnetocrystalline, magnetoelastic and shape). The Co1Au1 film was anisotropic in the plane, whereas Co2Au1 and Co were isotropic and had an out-of-plane magnetization component; stripe domains were observed in Co2Au1, resulting in a transcritical hysteresis loop. A key role in determining these properties was ascribed to the magnetoelastic anisotropy term. Unlike the continuous films, the antidot arrays showed a similar hysteretic behavior and important similarities in the spin configuration were pointed out, despite the different compositions. We argue, also based on micromagnetic simulations, that this occurred because the nanopatterning enabled a local modification of the shape anisotropy, thus smoothing out the differences observed in the continuous films.
@article{
11577_3286058,
author = {Spizzo, F and Del Bianco, L and Coïsson, M and Chinni, F and Mattarello, V and Maurizio, C and Mattei, G},
title = {Interplay between magnetic anisotropies in CoAu and Co films and antidot arrays: effects on the spin configuration and hysteretic behavior},
year = {2018},
publisher = {ROYAL SOC CHEMISTRY},
journal = {PHYSICAL CHEMISTRY CHEMICAL PHYSICS},
volume = {20},
abstract = {We studied (i) a set of three Co: Au continuous films, grown by sputtering co-deposition (B80 nm thick)
with concentration ratios of 2 : 1, 1 : 1 and 1 : 0 (i.e., a pure Co film was also included), and (ii) a
corresponding set of antidot arrays, produced by nanosphere lithography with the same hexagonal
pattern (nominal lattice periodicity B520 nm). The samples were investigated by atomic and magnetic
force microscopy and SQUID magnetometry. A twofold aim was fulfilled: to gain information on the
magnetism of the CoAu compound (saturation magnetization, effective in-plane and out-of-plane
anisotropy, exchange stiffness constant and magnetostrictive behavior) and to compare the magnetic
behavior of the continuous and patterned samples. The continuous films exhibited a variety of hysteretic
behaviours and magnetic configurations, ruled by the interplay between different magnetic anisotropy
terms (magnetocrystalline, magnetoelastic and shape). The Co1Au1 film was anisotropic in the plane,
whereas Co2Au1 and Co were isotropic and had an out-of-plane magnetization component; stripe
domains were observed in Co2Au1, resulting in a transcritical hysteresis loop. A key role in determining
these properties was ascribed to the magnetoelastic anisotropy term. Unlike the continuous films, the
antidot arrays showed a similar hysteretic behavior and important similarities in the spin configuration
were pointed out, despite the different compositions. We argue, also based on micromagnetic
simulations, that this occurred because the nanopatterning enabled a local modification of the shape
anisotropy, thus smoothing out the differences observed in the continuous films.},
doi = {10.1039/c8cp02323a},
pages = {16835-16846--16846}
}
Downloads: 0
{"_id":"G7eKBjitoTuCrBGfr","bibbaseid":"spizzo-delbianco-cosson-chinni-mattarello-maurizio-mattei-interplaybetweenmagneticanisotropiesincoauandcofilmsandantidotarrayseffectsonthespinconfigurationandhystereticbehavior-2018","author_short":["Spizzo, F","Del Bianco, L","Coïsson, M","Chinni, F","Mattarello, V","Maurizio, C","Mattei, G"],"bibdata":{"bibtype":"article","type":"article","author":[{"propositions":[],"lastnames":["Spizzo"],"firstnames":["F"],"suffixes":[]},{"propositions":[],"lastnames":["Del","Bianco"],"firstnames":["L"],"suffixes":[]},{"propositions":[],"lastnames":["Coïsson"],"firstnames":["M"],"suffixes":[]},{"propositions":[],"lastnames":["Chinni"],"firstnames":["F"],"suffixes":[]},{"propositions":[],"lastnames":["Mattarello"],"firstnames":["V"],"suffixes":[]},{"propositions":[],"lastnames":["Maurizio"],"firstnames":["C"],"suffixes":[]},{"propositions":[],"lastnames":["Mattei"],"firstnames":["G"],"suffixes":[]}],"title":"Interplay between magnetic anisotropies in CoAu and Co films and antidot arrays: effects on the spin configuration and hysteretic behavior","year":"2018","publisher":"ROYAL SOC CHEMISTRY","journal":"PHYSICAL CHEMISTRY CHEMICAL PHYSICS","volume":"20","abstract":"We studied (i) a set of three Co: Au continuous films, grown by sputtering co-deposition (B80 nm thick) with concentration ratios of 2 : 1, 1 : 1 and 1 : 0 (i.e., a pure Co film was also included), and (ii) a corresponding set of antidot arrays, produced by nanosphere lithography with the same hexagonal pattern (nominal lattice periodicity B520 nm). The samples were investigated by atomic and magnetic force microscopy and SQUID magnetometry. A twofold aim was fulfilled: to gain information on the magnetism of the CoAu compound (saturation magnetization, effective in-plane and out-of-plane anisotropy, exchange stiffness constant and magnetostrictive behavior) and to compare the magnetic behavior of the continuous and patterned samples. The continuous films exhibited a variety of hysteretic behaviours and magnetic configurations, ruled by the interplay between different magnetic anisotropy terms (magnetocrystalline, magnetoelastic and shape). The Co1Au1 film was anisotropic in the plane, whereas Co2Au1 and Co were isotropic and had an out-of-plane magnetization component; stripe domains were observed in Co2Au1, resulting in a transcritical hysteresis loop. A key role in determining these properties was ascribed to the magnetoelastic anisotropy term. Unlike the continuous films, the antidot arrays showed a similar hysteretic behavior and important similarities in the spin configuration were pointed out, despite the different compositions. We argue, also based on micromagnetic simulations, that this occurred because the nanopatterning enabled a local modification of the shape anisotropy, thus smoothing out the differences observed in the continuous films.","doi":"10.1039/c8cp02323a","pages":"16835-16846–16846","bibtex":"@article{\n\t11577_3286058,\n\tauthor = {Spizzo, F and Del Bianco, L and Coïsson, M and Chinni, F and Mattarello, V and Maurizio, C and Mattei, G},\n\ttitle = {Interplay between magnetic anisotropies in CoAu and Co films and antidot arrays: effects on the spin configuration and hysteretic behavior},\n\tyear = {2018},\n\tpublisher = {ROYAL SOC CHEMISTRY},\n\tjournal = {PHYSICAL CHEMISTRY CHEMICAL PHYSICS},\n\tvolume = {20},\n\tabstract = {We studied (i) a set of three Co: Au continuous films, grown by sputtering co-deposition (B80 nm thick)\r\nwith concentration ratios of 2 : 1, 1 : 1 and 1 : 0 (i.e., a pure Co film was also included), and (ii) a\r\ncorresponding set of antidot arrays, produced by nanosphere lithography with the same hexagonal\r\npattern (nominal lattice periodicity B520 nm). The samples were investigated by atomic and magnetic\r\nforce microscopy and SQUID magnetometry. A twofold aim was fulfilled: to gain information on the\r\nmagnetism of the CoAu compound (saturation magnetization, effective in-plane and out-of-plane\r\nanisotropy, exchange stiffness constant and magnetostrictive behavior) and to compare the magnetic\r\nbehavior of the continuous and patterned samples. The continuous films exhibited a variety of hysteretic\r\nbehaviours and magnetic configurations, ruled by the interplay between different magnetic anisotropy\r\nterms (magnetocrystalline, magnetoelastic and shape). The Co1Au1 film was anisotropic in the plane,\r\nwhereas Co2Au1 and Co were isotropic and had an out-of-plane magnetization component; stripe\r\ndomains were observed in Co2Au1, resulting in a transcritical hysteresis loop. A key role in determining\r\nthese properties was ascribed to the magnetoelastic anisotropy term. Unlike the continuous films, the\r\nantidot arrays showed a similar hysteretic behavior and important similarities in the spin configuration\r\nwere pointed out, despite the different compositions. We argue, also based on micromagnetic\r\nsimulations, that this occurred because the nanopatterning enabled a local modification of the shape\r\nanisotropy, thus smoothing out the differences observed in the continuous films.},\n\tdoi = {10.1039/c8cp02323a},\n\tpages = {16835-16846--16846}\n}\n","author_short":["Spizzo, F","Del Bianco, L","Coïsson, M","Chinni, F","Mattarello, V","Maurizio, C","Mattei, G"],"key":"11577_3286058","id":"11577_3286058","bibbaseid":"spizzo-delbianco-cosson-chinni-mattarello-maurizio-mattei-interplaybetweenmagneticanisotropiesincoauandcofilmsandantidotarrayseffectsonthespinconfigurationandhystereticbehavior-2018","role":"author","urls":{},"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/f/oe8HqxqrxvzPuSFEP/references (1).bib","dataSources":["J4CFTDgCDD5QTpety","ZXyTrMmQrEEnkHnok"],"keywords":[],"search_terms":["interplay","between","magnetic","anisotropies","coau","films","antidot","arrays","effects","spin","configuration","hysteretic","behavior","spizzo","del bianco","coïsson","chinni","mattarello","maurizio","mattei"],"title":"Interplay between magnetic anisotropies in CoAu and Co films and antidot arrays: effects on the spin configuration and hysteretic behavior","year":2018}