Mossbauer study of Al and Cr co-substituted Yttrium iron garnets

被引：5

作者：

Murumkar, V. D. ^{[1
]}

Shengule, D. R. ^{[2
]}

Bichile, G. K. ^{[2
]}

Jadhav, K. M. ^{[2
]}

机构：

[1] Vivekanand Arts SD Commerce & Sci Senior Coll, Dept Phys, Aurangabad 431001, Maharashtra, India

[2] Dr Babasaheb Ambedkar Marathwada Univ, Dept Phys, Aurangabad 431005, MS, India

来源：

HYPERFINE INTERACTIONS | 2009年 / 192卷 / 1-3期

关键词：

Yttrium iron garnet; Mossbauer; Hyperfine parameters; Site occupancy; ALUMINUM;

D O I：

10.1007/s10751-008-9903-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The Mossbauer spectra of Y3AlxCrXFe5-2xO12 (x = 0.0 to 0.6) measured at 300 K have been fitted with two sextets in the ferrimagnetic state corresponding to Fe3+ at the octahedral (a) and the tetrahedral (d) sites for x <= 0.6. The isomer shifts (d) and quadrupole splitting (Delta E-Q) indicate the presence of high spin Fe3+ ions in the tetrahedral (d) and octahedral (a) sites, typical of yttrium of yttrium iron garnet structure. Mossbauer results have shown that Al3+, enters a-sites only but Cr3+ enters both a-and d-sites.

引用

页码：93 / 100

页数：8

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