Resonant X-ray emission spectra by the electric quadrupole excitation at the MnK-edge of MnO

被引：9

作者：

Shoji, H

Taguchi, M

Hirai, E

Iwazumi, T

Kotani, A

Nanao, S

Isozumi, Y

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

[2] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy

[3] Inst Mat Struct Sci, Photon Factory, Tsukuba, Ibaraki 3050801, Japan

[4] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[5] Kyoto Univ, Radioisotope Res Ctr, Sakyo Ku, Kyoto 6118501, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 06期

关键词：

resonant x-ray emission spectroscopy; electric quadrupole excitation; angle dependence; Mn oxide; cluster model; Wigner-Eckart theorem;

D O I：

10.1143/JPSJ.72.1560

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the incident, the scattering and the azimuthal angle dependences of the Mn Kbeta resonant x-ray emission spectroscopy (RXES) due to the electric quadrupole excitation by tuning the incident photon energy to the pre-edge region of the Mn K-edge for a MnO single crystal both experimentally and theoretically. RXES caused by the electric quadrupole excitation shows a strong sensitivity to these angles, and the agreement between theory and experiment is good. Different angle dependences are shown between the excitation to the T-2g orbital and that to the E-g one. It is discussed that RXES can be a powerful tool to separate the electric quadrupole and dipole contributions in the pre-edge region of the transition-metal K-edge in transition metal compounds.

引用

页码：1560 / 1569

页数：10