Magnetic properties of Au/Co/Ni80Fe20/Co/Au layered structures

• Autorzy: Załęski K. , Urbaniak M. , Szymański B. , Schmidt M. , Aleksiejew J. , Stobiecki F.
• Konferencja: Conference New Materials for Magnetoelectronics, Będlewo, 3-6 May 2006
• Języki publikacji: EN

Abstrakty

EN

The influence of an ultrathin cobalt layer at permalloy/gold interfaces in Au/Ni80Fe20/Au sandwiches and spin-valve (Ni80Fe20/Au/Co/Au)N multilayers on their magnetic and magnetotransport properties is investigated. We show that an effective magnetic anisotropy of Co/Ni80Fe20/Co hybrid structures sandwiched between Au layers can be easily varied by the thickness adjustment of Co and Ni80Fe20 layers. We also show that changes of the anisotropy are mainly determined by the Co layer deposited on Au. On the other hand, the influence of Co layer deposited on Ni80Fe20 is relatively small. The use of hybrid layers in the spin valve MLs with alternating easy plane and perpendicular anisotropy in consecutive ferromagnetic layers leads to significant changes of their magnetoresistance effect.

Słowa kluczowe

EN

ferromagnetic layer; cobalt layer; hybrid structures; magnetic properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2007
• Tom: Vol. 25, No. 2
• Strony: 417--422
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Załęski K.

autor

Urbaniak M.

autor

Szymański B.

autor

Schmidt M.

autor

Aleksiejew J.

autor

Stobiecki F.

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

Bibliografia

• [1] CHAPPERT C., LE DANG K., BEAUVILLAIN P., HURDEQUINT H., RENARD D., Phys. Rev. B, 34 (1986), 3192.
• [2] BLAND J.A.C., HEINRICH B., Utrathin Magnetic Structures I, Springer, Berlin, 1994.
• [3] STOBIECKI F., URBANIAK M., SZYMAŃSKI B., SCHMIDT M., LUCIŃSKI T., phys. stat. sol. B, 243 (2006), 210.
• [4] ASTI G., SOLZI M., GHIDINI M., NERI F.M., Phys. Rev. B, 69 (2004), 174401.
• [5] STOBIECKI F., SZYMAŃSKI B., LUCIŃSKI T., DUBOWIK J., URBANIAK M., K. RÖLL K., J. Magn. Magn. Mater., 282 (2004), 32.
• [6] VOIGTLÄNDER B., MEYER G., AMER N.M., Phys. Rev. B, 44 (1991), 10354.