Perpendicular anisotropy and magneto-optical Kerr effect of (Ni/Pd) multilayers

Jen, S. U.; Shieh, C.H.; Chiang, Hai‐Pang

doi:10.1016/j.jpcs.2004.02.004

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…Magnetic anisotropy is one of the intensively studied issues due to its critical role in magnetic recording. It is known to be affected by several factors, such as structure [1,2], film strain [3] and thickness [4], temperature [5], broken symmetry at the interface [6] and so forth. As a potential candidate for magnetic recording, Ni x Pd 1Àx alloy has been studied for a long time.…”

mentioning

confidence: 99%

Magnetism and magnetic anisotropy of NixPd1−x alloy

Tang

Tian

Yin

et al. 2007

Journal of Magnetism and Magnetic Materials

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mentioning

confidence: 99%

Magnetism and magnetic anisotropy of NixPd1−x alloy

Tang

Tian

Yin

et al. 2007

Journal of Magnetism and Magnetic Materials

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“…Details of the measurements of PKR ͑ K ͒ and reflectance R were described in Ref. 11. The measurements of H and were described in Ref.…”

Section: Methodsmentioning

confidence: 99%

Enhancement of polar Kerr effect by forming Au nanoparticles on Ni surface

Jen

Chen

2005

Journal of Applied Physics

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Au ( x ) ∕ Ni ( y ) ∕ glass ( sub ) bilayered films, with x ranging from 0to310Å and y=85Å, were made by the vapor evaporation method in vacuum. The surface morphology of each bilayer was examined by an atomic force microscope. The results show that when x=xm=25 and 100Å, respectively, there were, in particular, a large number of Au nanoparticles (or nanoislands) forming on top of the Ni surface. As a result, we observed considerable enhancement in either the polar Kerr rotation θK or the extraordinary Hall coefficient RS at these two thicknesses. As is well known, the penetration depth δP of the electron transverse flow, crossing the Au∕Ni interface from the Ni to the Au layer, is of the order of the electron mean free path ℓAu, i.e., δP=(3∕8)ℓAu≈116Å, in the Au layer. Hence, the situation xm<δP is always satisfied. Then, the strong enhancement of θK is due to the surface plasma resonance effect on the Au nanoparticles (e.g., by reducing the real part of the diagonal dielectric tensor εxx so that Re[εxx(ω)]≈1, where ℏω=1.96eV). Moreover, the formation of Au nanoparticles roughens the bilayer’s surface. That means the enhancement of RS is due to the increase of the surface resistivity ρS. Finally, since the side-jump mechanism is effective, it could affect θK too (e.g., by enhancing the imaginary part of the off-diagonal conductivity Im[σxy]).

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“…Odličan sinergijski efekat koji se javlja između Ni i Pd, čini NiPd kao novu generaciju katalizatora potpuno različitih osobina od pojedinačnih Ni i Pd katalizatora. Formiranje nikl-oksida (NiO) može značajno pojačati katalitičku aktivnost i otpornost Pd na adsorpciju ugljen-monoksida, zbog adsorpcije OH grupe na nižem potencijalu povećavajući broj aktivacionih centara za elektrokatalitičku reakciju [7][8][9].…”

Section: Uvodunclassified

Laser-induced modification of 5x(Ni/Pd)/Si and (Ni/Pd)/Si systems by picosecond pulses

Stupar¹,

Peruško²,

Petrović³

2015

Tehnika

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Rad prikazuje proučavanje promena hemijskog sastava i morfologije kompaktnog (Ni/Pd)/Si i višeslojnog 5x(Ni/Pd)/Si tankog sloja posle modifikacije pikosekundnim laserskim zračenjem. Istraživanje je obuhvatilo analizu efekata koji su izazvani delovanjem zračenja Nd:YAG lasera talasne dužine 1064 nm sa dužinom trajanja impulsa od 150 ps na kompleksnim uzorcima. Laserski izazvane modifikacije hemijskog sastava i morfologije zavise od energije predate sistemu i broja akumuliranih impulsa. Rezultati pokazuju povećanje površinske hrapavosti praćeno intenzivnom ablacijom i površinskim topljenjem materijala u modifikovanoj oblasti. Laserska modifikacija posmatranih sistema indukovala je intenzivno mešanje komponenti individualnih Ni i Pd slojeva, sa velikom verovatnoćom formiranja intermetalnih NiPd jedinjenja. Jedan od značajnijih rezultata površinske modifikacije je formiranje mozaične i paralelne periodične strukture nanometarskih dimenzija.

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Perpendicular anisotropy and magneto-optical Kerr effect of (Ni/Pd) multilayers

Cited by 3 publications

References 10 publications

Magnetism and magnetic anisotropy of NixPd1−x alloy

Magnetism and magnetic anisotropy of NixPd1−x alloy

Enhancement of polar Kerr effect by forming Au nanoparticles on Ni surface

Laser-induced modification of 5x(Ni/Pd)/Si and (Ni/Pd)/Si systems by picosecond pulses

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