Fourfold Magnetic Anisotropy of CoPd Alloy, Obtained by Solid State Reactions in Epitaxal Pd/hcp-Сo and Pd/fcc-Co Bilayers


Article Preview

The solid-state reaction between epitaxial hcp-Co (110) and fcc-Co (001) thin films and Pd layers was investigated at annealing temperatures between 250 and 650 °C using X-ray diffraction and magnetic measurements. No significant intermixing of the layers occurs at annealing temperatures below 400 °C. For the atomic composition 1Co:1Pd after annealing at 450 °C the disordered solid solution fcc-CoxPd1-x is formed on the Pd/hcp-Co (110) and Pd/fcc-Co (001) interfaces. Epitaxial relationships CoPd (110)〈-111〉 || MgO(001)〈100〉 and CoPd (001)〈100〉 || MgO(001)〈100〉 between the nucleated disordered phase CoPd and the substrate MgO(001) were determined for Pd/hcp-Co (110) and Pd/fcc-Co (001) bilayers, respectively. The first magnetocrystalline anisotropy constant of the disordered CoPd phase ​​K1CoPd = - (1.8 ± 0.4)·104 J/m3 for the (110) and (001) orientations was obtained.



Solid State Phenomena (Volumes 233-234)

Edited by:

Nikolai Perov and Anna Semisalova






V.G. Myagkov et al., "Fourfold Magnetic Anisotropy of CoPd Alloy, Obtained by Solid State Reactions in Epitaxal Pd/hcp-Сo and Pd/fcc-Co Bilayers", Solid State Phenomena, Vols. 233-234, pp. 571-574, 2015

Online since:

July 2015




* - Corresponding Author

[1] B.M. Lairson, W. Liu, A. P. Payne, C. Baldwin, and H. Hamilton, J. Appl. Phys. 77 (1995) 6675.

[2] B.D. Terris, J. Magn. Magn. Mater. 321 (2009) 512.

[3] S. Mangin, D. Ravelosona, J. A. Katine, M. J. Carey, B. D. Terris, E. E. Fullerton, Nature Mater. 5 (2006) 210.

[4] Z. Liu, R. Brandt, O. Hellwig, S. Florez, T. Thomson, B. Terris, H. Schmidt, J. Magn. Magn. Mater. 323 (2011) 1623.

[5] D. Weller, A. Moser, L. Folks,  M.E. Best,  W. Lee,  M.F. Toney, M. Schwickert, J. -U. Thiele, and M.F.  Doerner, IEEE Trans. Magn. 36 (2000) 10.

DOI: 10.1109/20.824418

[6] M. Gottwald, K. Lee, J.J. Kan, B. Ocker, J. Wrona, S. Tibus, J. Langer, S.H. Kang, and E.E. Fullerton, Appl. Phys. Lett. 102 (2013) 052405.

DOI: 10.1063/1.4791577

[7] A. Murdoch, A.G. Trant, J. Gustafson, T.E. Jones, T.C.Q. Noakes, P. Bailey, C.J. Baddeley, Surf. Sci. 608 (2013) 212.

[8] Yu.V. Goryunov, M.G. Khusainov, I.A. Garifullin et al., J. Magn. Magn. Mater. 138 (1994) 216.

[9] E. Gu, M. Gester, R.J. Hicken, C. Daboo, M. Tselepi, S.J. Gray, J.A.C. Bland, L.M. Brown, T. Thomson and P.C. Riedi, Phys. Rev. B 52 (1995) 14704.

DOI: 10.1103/physrevb.52.14704

[10] N. Miyata, M. Hagiwara, Y. Ichiyanagi, K. Kuwahara, H. Matsufuji, J. Phys. Soc. Jpn. 55 (1986) 961.

In order to see related information, you need to Login.