X-Ray Magnetic Form Factor of UTe

Masahisa Ito; Fumitake Itoh; Yoshikazu Tanaka; Akihisa Koizumi; Hiroshi Sakurai; Toru Ohta; Koichi Mori; Akira Ochiai; Hiroshi Kawata

doi:10.1143/jpsj.64.2333

Masahisa Ito, Fumitake Itoh, Yoshikazu Tanaka, Akihisa Koizumi, Hiroshi Sakurai, Toru Ohta, Koichi Mori, Akira Ochiai, Hiroshi Kawata

Author information

Masahisa Ito
Faculty of Science, Himeji Institute of Technology, Kanaji 1479–1, Kamigori, Ako, Hyogo 678–12
Fumitake Itoh
Faculty of Engineering, Gunma University, Tenjin–cho 1–5–1, Kiryu 376
Yoshikazu Tanaka
The Institute of Physical and Chemical Research (RIKEN), Hirosawa 2–1, Wako 351–01
Akihisa Koizumi
Faculty of Science, Himeji Institute of Technology, Kanaji 1479–1, Kamigori, Ako, Hyogo 678–12
Hiroshi Sakurai
Faculty of Engineering, Gunma University, Tenjin–cho 1–5–1, Kiryu 376
Toru Ohta
The Institute of Physical and Chemical Research (RIKEN), Hirosawa 2–1, Wako 351–01
Koichi Mori
Japan Atomic Energy Research Institute (JAERI), Tokai, Naka, Ibaraki 319–11
Akira Ochiai
The Oarai Branch, Institute for Material Research, Tohoku University, Narita–cho 2145–2, Oarai, Higashiibaraki, Ibaraki 311–13
Hiroshi Kawata
Photon Factory (PF), National Laboratory for High Energy Physics (KEK), Oho 1–1, Tsukuba, Ibaraki 305

Keywords: X-ray magnetic diffraction, X-ray magnetic Bragg scattering, synchrotron radiation, circularly polarized X-rays, magnetic form factor, orbital magnetic moment, spin magnetic moment, uranium, uranium monochalcogenide, UTe

JOURNAL RESTRICTED ACCESS

1995 Volume 64 Issue 7 Pages 2333-2337

DOI https://doi.org/10.1143/jpsj.64.2333

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Abstract

A measurement of the magnetic form factor of a ferromagnetic actinide compound of UTe with circularly polarized X-rays is reported. The present geometrical configuration of the measurement gives a form factor of L(k)+0.3S(k), where L(k) andS(k) are the form factors of the orbital and the spin magnetic moment, respectively.We have combined the X-ray magnetic form factor with the neutron one which gives L(k)+2S(k) (G. Busch et, al.: J. Phys. C 12 (1979) 1391), and have deduced L(k) and S(k) separately. The obtained profiles of L(k) and S(k) show that the orbital and the spin magnetic moments are spatially spread out more than those calculated for a free uranium ion.

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