Fabrication and magnetic properties of fcc CoXPt1−X nanowires

Mallet, Jérémy; Yu-Zhang, K.; Chien, C. L.; Eagleton, Tom S.; Searson, Peter C.

doi:10.1063/1.1739274

Cited by 67 publications

(47 citation statements)

References 16 publications

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“…12 There are recent reports of electrodeposition of ferromagnetic metals and alloys into nanoporous membranes. [13][14][15] Some coercivity ͑0.16 T͒ has been reported for cobalt deposited into alumina templates, and there are recent reports of Co-Pt nanotubes 16 and nanowires 17,18 with interesting hysteretic properties prepared in this way.…”

Section: Introductionmentioning

confidence: 99%

Thick-film permanent magnets by membrane electrodeposition

Rhen¹,

Backen²,

Coey³

2005

Journal of Applied Physics

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Thick films of nearly equiatomic Co-Pt produced by electrodeposition into nanoporous membranes exhibit an isotropic magnetic phase with square hysteresis loops ͑M r / M s = 0.95͒ and coercivity of up to 1.3 T. The initial magnetization curve is characteristic of pinning-type magnets. The coercivity can be controlled by the choice of annealing temperature or alloy composition, which depends on the chemical composition of the plating bath, properties which can be exploited to produce fine-pitch pole patterns.

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Section: Introductionmentioning

confidence: 99%

Thick-film permanent magnets by membrane electrodeposition

Rhen¹,

Backen²,

Coey³

2005

Journal of Applied Physics

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“…The EDS data ( Figure S1a) shows that the main signal peaks are ascribed to the elements Co and Pt, and reveals that the atomic ratio of Co to Pt is nearly 30:70. The XRD data of samples is shown in Figure S1b, which represents a good match with the face-centered cubic (fcc) structure of CoPt, according to the Bragg reflections data [35,36]. Pt hollow nanostructures will be described later.…”

Section: Resultsmentioning

confidence: 62%

Pt-Based Nanostructures for Observing Genuine SERS Spectra of p-Aminothiophenol (PATP) Molecules

et al. 2017

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By one-pot wet chemical method, Pt-based hollow nanostructures were synthesized at room temperature. Because of the highly damping optical response of the metal, these Pt-based hollow nanostructures exhibited weak thermal effects with a laser focal spot on 4-aminothiophenol (PATP) molecules limiting dimerisation. The isolated surface enhanced Raman scattering (SERS) spectra of PATP, in which the vibrational bands from 4,4 -dimercaptoazobenzene (DMAB) molecules are not observed, were able to be seen, and this was in good agreement with the Raman spectra of PATP powder. In addition, the concentration of PATP molecules was varied, and the illumination time was increased to 2000 s, respectively. It was found that spectra were stable with varied PATP concentrations, and the plasmon-driven chemical conversion of PATP to DMAB was still suppressed, even when the laser illumination time was increased to 2000 s.

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“…The difference between the perpendicular and parallel M-H curves defines the uniaxial anisotropy for CoPt nanowire arrays. For 40 nm CoPt nanowires ( Figure 7a) the remanent squareness (SQ) in the parallel (⁄⁄) geometry is larger than that of the perpendicular (⊥) geometry attributing to the parallel alignment of the magnetic easy axis along the wire axis (Mallet et al, 2004). For 200 nm CoPt nanowires as shown in Figure 7b, SQ in the perpendicular geometry is larger than that of the parallel geometry.…”

Section: Characterizationmentioning

confidence: 96%

“…For example the critical diameter for CoPt nanowires was calculated as d c =14 nm (Mallet et al, 2004). The equation describing the dependence of H c on the diameter of nanowires in the curling mode has been given as follows (Mallet et al, 2004) …”

Section: Curling Rotation Modelmentioning

confidence: 99%