Ab initio spin dynamics applied to nanoparticles: Canted magnetism of a finite Co chain along a Pt„111... surface step edge

نویسندگان

  • B. Újfalussy
  • B. Lazarovits
  • L. Szunyogh
  • G. M. Stocks
  • P. Weinberger
چکیده

B. Újfalussy,1 B. Lazarovits,2 L. Szunyogh,2,3 G. M. Stocks,1 and P. Weinberger2 1Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 2Center for Computational Materials Science, Technical University Vienna, A-1060, Gumpendorferstr. 1.a., Vienna, Austria 3Department of Theoretical Physics and Center for Applied Mathematics and Computational Physics, Budapest University of Technology and Economics, Budafoki út 8, H-1521, Budapest, Hungary (Received 26 July 2004; published 16 September 2004)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ab initio study of canted magnetism of finite atomic chains at surfaces

By using ab initio methods on different levels we study the magnetic ground state of (finite) atomic wires deposited on metallic surfaces. A phenomenological model based on symmetry arguments suggests that the magnetization of a ferromagnetic wire is aligned either normal to the wire and, generally, tilted with respect to the surface normal or parallel to the wire. From a first principles point...

متن کامل

Effect of the electric field on magnetic properties of linear chains on a Pt(111) surface

Performing state-of-the-art ab initio calculations we study the effect of the electric field on magnetic properties of Co and Co-Pt chains on Pt(111). Our studies give clear evidence that an externally applied electric field could permit one to tailor magnetic anisotropy in chains. It is demonstrated that the physics behind this effect is related to the spin-dependent screening of an external e...

متن کامل

Interaction of atomic hydrogen with monometallic Au(100), Cu(100), Pt(100) surfaces and surface of bimetallic Au@Cu(100), Au@Pt(100) overlayer systems: The role of magnetism

The spin-polarized calculations in generalized gradient approximation density–functional theory (GGA–DFT) have been used to show how the existence of second metals can modify the atomic hydrogen adsorption on Au (100), Cu (100), and Pt (100) surfaces. The computed adsorption energies for the atomic hydrogen adsorbed at the surface coverage of 0.125 ML (monolayer) for the monometallic Au (100), ...

متن کامل

From the bulk to monatomic wires: An ab initio study of magnetism in Co systems with various dimensionality

A systematic ab initio study within the framework of the local-spin-density approximation including spinorbit coupling and an orbital-polarization term is performed for the spin and orbital moments and for the x-ray magnetic circular dichroism ~XMCD! spectra in hcp Co, in a Pt supported and a free standing Co monolayer, and in a Pt supported and a free standing monatomic Co wire. When including...

متن کامل

Magnetism in systems with various dimensionalities: A comparison between Fe and Co

A systematic ab initio study is performed for the spin and orbital moments and for the validity of the sum rules for x-ray magnetic circular dichroism for Fe systems with various dimensionalities ~bulk, Pt-supported monolayers and monatomic wires, free-standing monolayers and monatomic wires!. Qualitatively, the results are similar to those for the respective Co systems, with the main differenc...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004