JAHN-TELLER SYSTEMS AT HIGH PRESSURE

被引：2

作者：

Rodriguez, Fernando ^{[1
]}

机构：

[1] Univ Cantabria, MALTA Consolider Team, DCITIMAC, Fac Ciencias, E-39005 Santander, Spain

来源：

HIGH-PRESSURE CRYSTALLOGRAPHY: FROM FUNDAMENTAL PHENOMENA TO TECHNOLOGICAL APPLICATIONS | 2010年

关键词：

Jahn-Teller effect; Spin state; Mn3+; Co3+; High-pressure absorption; HYDROSTATIC-PRESSURE; OPTICAL-PROPERTIES; CRYSTAL; SPECTROSCOPY; TRANSITION; STATES;

D O I：

10.1007/978-90-481-9258-8_19

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Structural studies of Jahn-Teller (JT) systems involving transition metal ions often require using complementary spectroscopic techniques in order to complete an adequate characterization. X-ray absorption and diffraction though standard techniques for structural studies in concentrated materials are not well suited to investigate diluted or structurally subtle JT compounds. In this work we analyze the usefulness of optical spectroscopy to investigate structural properties of JT systems involving both diluted and concentrated compounds that are difficult to extract from diffraction experiments. Moreover, in some cases, the usage of different experimental techniques is crucial to obtain reliable conclusions. Some Mn3+, Ni3+ and Co3+ systems with perovskite structure will be presented and analyzed as an illustration.

引用

页码：215 / 229

页数：15

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