Reflection of Neutrons from Fan-Like Magnetic Systems
[1]
Vladimir Ignatovich, FLNP JINR 6 Joliot-Curie, Dubna, Moscow reg.141980 RF.
[2]
Yuriy Nikitenko, FLNP JINR 6 Joliot-Curie, Dubna, Moscow reg.141980 RF.
[3]
Florin Radu, Helmholtz-Zentrum für Materialien und Energie, Albert-Einstein-Str. 15, D-12489, Berlin, Germany.
An analytical solution is found for neutron reflectivity from so called fan-like magnetic mirrors with perpendicular exchange-spring multilayered magnetic structure. The main feature of the reflection curves related to this type of magnetization is pointed out. The results of numerical calculations for some parameters of the system are presented. The problems of time parity and detailed balance violation in the model are discussed.
Multilayers, Neutron Scattering, Diffraction, Polarization, Magnetism
[1]
J. B. Kortright, M. Rice, S.-K. Kim, C.C. Walton, T. Warwick, Magn. Magn. Mater. 207, 7-44, (1999).
[2]
A. I. Buzdin, Rev. Mod. Phys. 77, 935-976 (2005).
[3]
C. Leighton, M. R. Fitzsimmons, P. Yashar, A. Hoffmann, J. Noguès, J. Dura, C. F. Majkrzak, and Ivan K. Schuller, Phys.Rev. Lett. 86, 4394 (2001); M. R. Fitzsimmons, P. Yashar, C.Leighton, Ivan K. Schuller, J. Nogu{\'e}s, C. F. Majkrzak, and J.A. Dura, Phys. Rev. Lett. 84, 3986 (2000).
[4]
M.Calvo, Phys. Rev. B 18, 5073 (1978).
[5]
E. Goto, N. Hayashi, T. Miyashita, and K. Nakagawa, J. Appl. Phys. 36, 2951 (1965).
[6]
K. V. O'Donovan, J. A. Borchers, C. F. Majkrzak, O. Hellwig, and E. E. Fullerton, Phys. Rev. Lett. 88, 067201 (2002)
[7]
V. E. Kuncser, M. Doi, W. Keune, M. Askin, H. Spies, J. S. Jiang, A. Inomata, and S. D. Bader, Phys. Rev. B 68, 064416 (2003).
[8]
O. Hellwig, J. B. Kortright, K. Takano, and Eric E. Fullerton, Phys. Rev. B 62, 11694 (2003).
[9]
G. Asti, M. Ghidini, R. Pellicelli, C. Pernechele, M. Solzi, F.Albertini, F. Casoli, S. Fabbrici, and L. Pareti. Magnetic phase diagram and demagnetization processes in perpendicular exchange-spring multilayers. Phys.Rev. B 73, 094406, (2006).
[10]
R. H. Victora, and Xiao Shen. Composite Media for Perpendicular Magnetic Recording. IEEE Trans.Magn. 41, 537-42, (2005).
[11]
V. L. Aksenov, V. K. Ignatovich, Yu. V. Nikitenko, Crystallography Reports 51, 734-753 (2006).
[12]
F. Radu, V. K.Ignatovich, Physica B 267-268, 175-180 (1999).
[13]
F. Radu. Polarized Neutron Reflectometry Software``POLAR'' http://www.ep4.rub.de/radu/welcome/polar.html.
[14]
A. Ruhm, B. P. Toperverg, and H. Dosch, Phys. Rev. B 60, 16073 (1999).
[15]
L. Deak, L. Bottyan, D. L. Nagy, and H. Spiering, Physica B 297, 113 (2001).
[16]
V.K.Ignatovich, Yu.V.Nikitenko, A.A.Fraerman. T-odd correlations in neutron reflectometry experiments. Proc. XVII International seminar on Interaction of Neutrons with Nuclei, Dubna May 27-30 2009.
