Observation of internal interfaces in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Pt</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Co</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>(<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="in

Tyson, Trevor; Conradson, Steven D.; Farrow, R. F. C.; Jones, Barbara

doi:10.1103/physrevb.54.r3702

Cited by 91 publications

(51 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As in CoPt 3 in the L1 2 cubic phase considered as a model system, a local chemical disorder at interfaces has the effect of strongly reducing the PMA. 51 In the same spirit, Tyson et al 52 measured by x-ray absorption the rise of PMA in the L1 2 CoPt 3 phase by the preferential formation of Co-Co (Co-Pt) atomic bonds in the in-plane (out-of-plane) direction, thus leading to same conclusion that a disorder, mixing the direction of (Co and Pt) chemical bonds, destroys the PMA. Another argument in favor of alloying and disorder in the thinnest Co or Pt layers is an anomalous increase of the magnetic moment at the (Co/Pt) interfaces due to the high magnetic polarizability of 5d 9 Pt.…”

Section: Magnetic Properties Of (111)-oriented (Co/pt) Multilayersmentioning

confidence: 89%

Spin injection at remanence into III-V spin light-emitting diodes using (Co/Pt) ferromagnetic injectors

et al. 2012

View full text Add to dashboard Cite

We have studied the perpendicular magnetic anisotropy of Co/Pt multilayers and the electron spin injection efficiency by optical spectroscopy from a [Co(0.6 nm)/Pt(1 nm)] 4 /Fe(0.3 nm)/MgO perpendicular tunnel spin injector grown on AlGaAs/GaAs semiconductor light-emitting diodes. We observe a 2.5% circular polarization at low temperature close to the magnetic remanence when the 0.3 nm Fe film of the ferromagnetic injector is sufficiently thin to maintain the magnetization out of plane. The acquired squared magnetization cycle is explained by the remaining interlayer exchange coupling existing between Fe and the (Co/Pt) multilayer through Pt or possible perpendicular magnetic anisotropy at the MgO/Fe interface. The corresponding spin polarization of the current is then estimated as 7%, measured by photoluminescence techniques, after the necessary uprenormalization, taking into account the electron spin-flip rate in the quantum well. In contrast, no circular polarization is observed when the thin Fe layer is removed and despite the rather high magnetic polarizability of the 5d 9 electronic open shell of Pt at the interface with MgO. This emphasizes the reduced size of tunneling branching of wave functions at the interface, of the order of the atomic plane unit.

show abstract

Section: Magnetic Properties Of (111)-oriented (Co/pt) Multilayersmentioning

confidence: 89%

Spin injection at remanence into III-V spin light-emitting diodes using (Co/Pt) ferromagnetic injectors

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Co-Pt multilayers and alloys are attractive candidates for ultrahigh density magnetic recording media due to their high magnetic anisotropy, high coercivity and chemical stability against corrosion [1][2][3][4]. The way to grow the Co-Pt alloys such as pulsed laser deposition was proposed by Testa et al [5].…”

Section: Introductionmentioning

confidence: 99%

Abnormal reduction of coercivity on magnetic cobalt–platinum alloy films

Shern

2006

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

“…The ferromagnetic characteristics of Co-Pt alloys are closely connected to their structure and short-range chemical order [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Magnetic and electronic properties of a Pt–Co bilayer on Pt(111)

Giovanelli

Santis

Panaccione

et al. 2005

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Observation of internal interfaces inPtxCo1−x(
Trevor Tyson
¹
,
Steven D. Conradson
²
,
R. F. C. Farrow
³

et al.

Cited by 91 publications

References 30 publications

Spin injection at remanence into III-V spin light-emitting diodes using (Co/Pt) ferromagnetic injectors

Spin injection at remanence into III-V spin light-emitting diodes using (Co/Pt) ferromagnetic injectors

Abnormal reduction of coercivity on magnetic cobalt–platinum alloy films

Magnetic and electronic properties of a Pt–Co bilayer on Pt(111)

Contact Info

Product

Resources

About

Observation of internal interfaces inPtxCo1−x(Trevor Tyson1, Steven D. Conradson2, R. F. C. Farrow3 et al.

Cited by 91 publications

References 30 publications

Spin injection at remanence into III-V spin light-emitting diodes using (Co/Pt) ferromagnetic injectors

Spin injection at remanence into III-V spin light-emitting diodes using (Co/Pt) ferromagnetic injectors

Abnormal reduction of coercivity on magnetic cobalt–platinum alloy films

Magnetic and electronic properties of a Pt–Co bilayer on Pt(111)

Contact Info

Product

Resources

About

Observation of internal interfaces inPtxCo1−x(
Trevor Tyson
¹
,
Steven D. Conradson
²
,
R. F. C. Farrow
³

et al.