Structural and magnetic properties of the layered compound Ca2.375La0.125Sr0.5GaMn2O8

Pramana

A K Bera¹  A Jain¹  S M Yusuf1¹ 

[1] Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India$$

关键词: Neutron diffraction;    low-dimensional magnetism;    antiferromagnetic.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The brownmillerite-type layered compound Ca2.375La0.125Sr0.5GaMn2O8 has been synthesized. The crystal and magnetic structures have been refined by the Rietveld analysis of the neutron powder diffraction patterns at 300 and 20 K. This compound crystallizes in the orthorhombic symmetry under the space group Pcm21 (𝑎 = 5.447(2), 𝑏 = 11.359(4) and 𝑐 = 5.322(2) Å). The compound is found to be antiferromagnetic at 20 K. The ordered Mn magnetic moment, aligned along the crystallographic 𝑏-direction, is derived to be 2.53(5) 𝜇𝐵 per Mn ion at 20 K.

【 授权许可】

Unknown