X-ray natural circular dichroism

被引：121

作者：

Alagna, L

Prosperi, T

Turchini, S

Goulon, J

Rogalev, A

Goulon-Ginet, C

Natoli, CR

Peacock, RD

Stewart, B

机构：

[1] CNR, ICMAT, AdR Roma, I-00016 Monterotondo, Italy

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

[3] Univ Grenoble, Fac Pharm, F-38706 La Tronche, France

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

[5] Univ Glasgow, Dept Chem, Glasgow G12 8QQ, Lanark, Scotland

[6] Univ Paisley, Dept Chem & Chem Engn, Paisley PA1 2BE, Renfrew, Scotland

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.80.4799

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of natural circular dichroism (CD) in the x-ray region. Measurements at the Nd L-3 edge in single crystals of Na3Nd(digly)(3) . 2NaBF(4) . 6H(2)O show CD with a dissymmetry factor g approximate to 10(-3) of the same order of magnitude as observed in the visible-uv region and similar to 100 times greater than in the vibrational infrared. Calculations using multiple scattering theory (MST) are in excellent agreement with the measured CD in the near-edge region (about 100 eV from the rising edge) and show that the effect arises from the electric dipole-electric quadrupole interference mechanism.

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页码：4799 / 4802

页数：4

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