Abstract
We report on a polarized neutron reflectivity investigation of the magnetic proximity effect in PdCo bilayer. Magnetization of individual layers is measured independently, and individual hysteresis loop is inferred. The proximity effect in Si < 100 > /Pdx/Coy samples is explored as a function of layer thickness. Grazing incidence X-ray diffraction measurements were carried out to check the purity and the structure of the samples. Polarized neutron reflectometry was used to evaluate the magnetic moment. The measurements have shown a good structural quality and a surface roughness less than 0.5 nm. A net magnetization was observed from the splitting of the non-spin flip reflectivity curves. The measured Pd magnetic moment varied from 0.012 to 0.031 μB/Pd atom. In spite of the low values found, we have demonstrated the existence of a correlation between Pd magnetic moment and the thickness ratio t(Pd)/t(Co).
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References
J Crangle and W R Scott J. Appl. Phys. 36 921 (1965)
J W Cable, E O Wollan and W C Koehler Phys. Rev. A 138 755 (1965)
M Weinert and R E Watson Phys. Rev. B 51 17168 (1995)
O Rader, E Vescovo, J Redinger, S Blügel, C Carbone, W Eberhardt and W Gudat Phys. Rev. Lett. 72 2247 (1994)
E E Fullerton, D Stoeffler, K Ounadjela, B Heinrich, Z Celinski and J A C Bland Phys. Rev. B 51 6364 (1995)
J Vogel, A Fontaine, V Cros, F Petroff, J P Kappler, G Krill, A Rogalev and J Goulon Phys. Rev. B 55 3663 (1997)
V Cros, F Petroff, J Vogel, A Fontaine, J L Menendez, A Cebollada, W Grange, J P Kappler, M Finazzi and N Brookes Europhys. Lett. 49 807 (2000)
T Manago, T Ono, H Miyajima, K Kawaguchi and M Sohma J. Phys. Soc. Japan 68 334 (1999)
Y F Lu, M Przybylski, M Nývlt, A Winkelmann, L Yan, Y Shi, J Barthel and J Kirschner Phys. Rev. B 73 035429 (2006)
H L Meyerheim, M Przybylski, A Ernst, Y Shi, J Henk, E Soyka and J Kirschner Phy. Rev. B 76 035425 (2007)
A Hoffmann, M R Fitzsimmons, J A Dura and C F Majkrzak Phys. Rev. B 65 024428 (2002)
J J Akerman, I Guedes, C Leighton, M Grimsditch and I K Schuller Phys. Rev. B 65 104432 (2002)
P K Manna and S M Yusuf Phys. Rep. 535 61 (2014)
S Hope, J Lee, P Rosenbusch, G Lauhoff, J A C Bland, A Ercole, D Bucknall, J Penfold, H J Lauter, V Lauter and R Cubitt Phys. Rev. B 55 11422 (1997)
S B Qadri, T M Keller, C A Little and P Lubitz Appl. Phys. A 81 587 (2005)
M R Fitzsimmonsa et al J. Magn. Magn. Mater. 271 103 (2004)
L M Falicov, D T Pierce, S D Bader, R Gronsky, K B Hathaway, H J Hopster, D N Lambeth, S S P Parkin, G Prinz, M Salamon, I K Schuller and R H Victora J. Mater. Res. 5 1299 (1990)
E E Fullerton, D M Kelly, J Guimpel, I K Schuller and Y Bruynseraede Phys. Rev. Lett. 68 859 (1992)
N M Rensing, A P Payne and B M Clemens J. Magn. Magn. Mater. 121 436 (1993)
M R Fitzsimmons and I K Schuller J. Magn. Magn. Mater 350 199 (2014)
L G Parratt Phys. Rev. 95 359 (1954)
G P Felcher Phys. Rev. B 24 1595 (1981)
W H Press, B P Flannery, S A Teukolsky and W T Vetterling Numerical recipes, 3rd edn. (Cambridge University Press) (1988)
A J Liu and M E Fisher Phys. Rev. A 40 7202 (1989)
A L Patterson Phys. Rev. 56 978 (1939)
V L Moruzzi Phys. Rev. Lett. 57 2211 (1986)
V L Moruzzi, P M Marcus, K Schwarz and P Mohn Phys. Rev. B 34 1784 (1986)
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We would like to thank Dr.Thomas Kristfor his assistance in PNR measurements and helpful discussions.
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Makhloufi, M., Salah, H. & Redjdal, N. Investigating magnetic proximity effects in PdCo using polarized neutron and X-ray reflectometry. Indian J Phys (2024). https://doi.org/10.1007/s12648-024-03128-0
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DOI: https://doi.org/10.1007/s12648-024-03128-0