X-ray resonant scattering as a direct probe of orbital ordering in transition-metal oxides

被引：56

作者：

Fabrizio, M

Altarelli, M

Benfatto, M

机构：

[1] Int Sch Adv Studies, I-34013 Trieste, Italy

[2] INFM, I-34013 Trieste, Italy

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[4] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.80.3400

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

X-ray resonant scattering at the K-edge of transition-metal oxides is shown to measure the orbital order parameter, supposed to accompany magnetic ordering in some cases. Virtual transitions to the 3d orbitals are quadrupolar in general. In cases with no inversion symmetry, such as V2O3, treated in detail here, a dipole component enhances the resonance. Hence, we argue that the detailed structure of orbital order in V2O3 is experimentally accessible.

引用

页码：3400 / 3403

页数：4

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