LARGE ROOM-TEMPERATURE MAGNETOOPTICAL KERR EFFECT IN CUCR2SE4-XBRX (X = 0 AND 0.3)

被引:10
作者
BRANDLE, H [1 ]
SCHOENES, J [1 ]
WACHTER, P [1 ]
HULLIGER, F [1 ]
REIM, W [1 ]
机构
[1] SIEMENS AG,ZENT FORSCH & ENTWICKLUNG,W-8520 ERLANGEN,GERMANY
关键词
D O I
10.1016/0304-8853(91)90330-D
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The reflectivity between 0.03 and 12.4 eV and the magneto-optical polar Kerr rotation and Kerr ellipticity between 0.55 and 5.17 eV have been measured on CuCr2Se4-xBrx with x = 0 and 0.3. In the infrared large Kerr effects up to -1.19-degrees at room temperature have been observed. The origin of these effects is a strong interband transition, probably a charge transfer transition, which is additionally enhanced by a plasma edge in the reflectivity. It is shown that the energy of the maximum Kerr effect can be tuned by suitable substitutions.
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页码:207 / 210
页数:4
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