Dresden 2014 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 19: Poster I
MA 19.27: Poster
Dienstag, 1. April 2014, 13:00–15:30, P1
Surfactant Mediated Growth of Magnetic Multilayers: X-ray and Neutron Reflectivity Study — •Amir Syed Mohd1,2, Mukul Gupta2, Ajay Gupta2, and Jochen Stahn3 — 1Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at MLZ, Lichtenbergst. 1, 85748 Garching, Germany — 2UGC-DAE Consortium for Scientific Research, Khandwa Road Indore-452001, India — 3Laboratory for Neutron Scattering, PSI, CH-5232 Villigen PSI, Switzerland
In magnetic multilayers, often magnetic materials are separated by non-magnetic noble metals, semiconductors or insulators. In general, noble metals and insulators have smaller surface free energy (γ) values as compared to magnetic materials. This difference in γ of materials leads to asymmetric interface during the growth of the magnetic multilayers[1].
While γ being an intrinsic property of the material, energy of adatoms condensing on a substrate also affects thin film growth. Generally, the energy of adatoms is characterized by a deposition process. Although, surfactant mediated growth of magnetic multilayers has been studied [2], but the study of influence of adatom energy is still lacking. In the present work we studied Ag surfactant mediated growth of miscible (Ni/Ti) and immiscible (Cu/Co) multilayers prepared using different deposition techniques viz. e-beam evaporation and ion beam sputtering. Obtained results will be presented and discussed in this presentation. [1] F. J. Himpsel et al Adv. Phys. 1998, 47, 511 [2] H. D. Chopra et al Phys. Rev. B 2002, 65, 094433