Magnetic circular dichroism of the S 2p, Co 2p, and Co 3p core absorption and orbital angular momentum of the Co 3d state in low-spin CoS2.

نویسندگان

  • Muro
  • Shishidou
  • Oda
  • Fukawa
  • Yamada
  • Kimura
  • Imada
  • Suga
  • Park
  • Miyahara
  • Sato
چکیده

Magnetic circular dichroism ~MCD! has been measured for ferromagnetic CoS2 in the S 2p , Co 2p and 3p core absorption regions. MCD in the S 2p region is discussed in terms of the exchange splitting of the unoccupied band. The Co 2p MCD has revealed that the orbital angular momentum of the Co 3d state remains finite in spite of its low-spin configuration. This situation is confirmed by a simple cluster model calculation.

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

Magnetic circular dichroism in the soft-x-ray absorption spectra of Mn-based magnetic intermetallic compounds

We have investigated the magnetic electronic structures of PtMnSb, NiMnSb, Ni2MnSb,MnSb, MnAlGe, and Mn2Sb by soft-x-ray absorption spectroscopy ~XAS! and magnetic circular dichroism ~MCD! measurements in the Mn 2p core absorption region. Different degrees of the electron itinerancy of the Mn 3d states are discussed. The large orbital angular momentum of the Mn 3d electrons is revealed for MnSb...

متن کامل

Orbital contribution to the 3d magnetic moment in ferromagnetic Cu3Au-type transition-metal-Pt alloys probed by soft-x-ray magnetic circular dichroism

Magnetic circular dichroism in the soft-x-ray absorption spectrum in the 2p→3d excitation region of the transition-metal element is measured for ferromagnetic Cu3Au-type alloys, MnPt3 , Fe3Pt and CoPt3 . The electronic state, especially the contribution of the spin and orbital angular momenta to the magnetic moment, is discussed by analyzing the results. The condition for the orbital angular mo...

متن کامل

Electron correlation and charge transfer at the NiÕCo interface

The evolving magnetism and electronic structure at the Ni/Co interface have been studied using x-ray absorption spectroscopy ~XAS! and x-ray photoemission spectroscopy ~XPS! with circularly polarized x rays. Deposition of ultrathin Ni films on thin films of Co grown on Cu~001! results in an intensity enhancement across the Co L2.3 absorption edge. By comparison, the intensity of the Ni L2.3 edg...

متن کامل

Exploring the microscopic origin of magnetic anisotropies with X-ray magnetic circular dichroism (XMCD) spectroscopy

Symmetry breaking and bonding at interfaces leads to a variety of anisotropy phenomena in transition metal sandwiches and multilayers. The charge density, the spin density and the orbital moment become anisotropic. These e!ects can be studied by the X-ray magnetic circular dichroism (XMCD) technique which senses the local anisotropy of charge, spin and angular momentum around an atom that is ex...

متن کامل

Spin state transition in LaCoO3 studied using soft x-ray absorption spectroscopy and magnetic circular dichroism.

Using soft x-ray absorption spectroscopy and magnetic circular dichroism at the Co-L(2,3) edge, we reveal that the spin state transition in LaCoO3 can be well described by a low-spin ground state and a triply degenerate high-spin first excited state. From the temperature dependence of the spectral line shapes, we find that LaCoO3 at finite temperatures is an inhomogeneous mixed-spin state syste...

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:
  • Physical review. B, Condensed matter

دوره 53 11  شماره 

صفحات  -

تاریخ انتشار 1996