IONIZATION-ENERGY LEVELS OF DIVALENT-CATIONS AND TRANSITION-METAL CATIONS IN Y3FE5O12 SINGLE-CRYSTALS

被引：1
|
作者：
FURUKAWA, Y
SATO, M
MARKGRAF, SA
机构：
[1] Magnetic and Electronic Materials Research Laboratory, Hitachi Metals Ltd., Kumagaya, Saitama, 360
[2] Materials Science and Engineering, Cornell University, Ithaca, NY
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 6A期
关键词：
YTTRIUM IRON GARNET; Y3FE5O12; CRYSTAL; FLOATING ZONE METHOD; ACTIVATION ENERGY; IONIZATION ENERGY LEVEL; ELECTRICAL RESISTIVITY; OPTICAL ISOLATOR;
D O I：
10.1143/JJAP.33.3464
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Correlation between transparency and electrical resistivity for Y3Fe5O12 Single crystals doped with various diva lent and transition metal cations is examined. Regardless of the dopant, when the electrical resistivity becomes greater than 10(5) Omega.cm the transparency at 1.5 mu m drastically increases. The activation energy for various dopants is determined from the temperature dependence of the electrical resistivity. The activation energy differs for each dopant, and the value gives the ionization level for carriers in the forbidden band gap.
引用
收藏
页码：3464 / 3468
页数：5
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