<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">GdFe</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> alloy formation studied on the atomic scale by scanning tunneling microscopy

R. Pascal; M. Getzlaff; H. Tödter; M. Bode; R. Wiesendanger

doi:10.1103/PhysRevB.60.16109

${GdFe}_{2}$ alloy formation studied on the atomic scale by scanning tunneling microscopy

R. Pascal, M. Getzlaff, H. Tödter, M. Bode, and R. Wiesendanger

Phys. Rev. B 60, 16109 – Published 15 December 1999

Abstract

Well-ordered ${GdFe}_{2}$ alloy films of up to two ML thickness were grown on top of a W(110) substrate and characterized by using scanning tunneling microscopy/spectroscopy (STM/STS) and low-energy electron diffraction (LEED). The crystallographic structure of the ultrathin films was found to be different from the well-known bulk structure (C15 Laves phase). This is supposed to result from the influence of the substrate on the growth behavior. Based on atomically resolved STM images and LEED studies, a structure model for the ultrathin ${GdFe}_{2}$ films on W(110) is proposed.

Received 12 May 1999

DOI:https://doi.org/10.1103/PhysRevB.60.16109

Authors & Affiliations

R. Pascal, M. Getzlaff^*, H. Tödter, M. Bode, and R. Wiesendanger

Institute of Applied Physics and Microstructure Research Center, University of Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany

^*Author to whom correspondence should be addressed. FAX: (+49)40428385311. Electronic address: getzlaff@physnet.uni-hamburg.de

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Vol. 60, Iss. 23 — 15 December 1999

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