取代和衬底应变对正交相EuYMnO（0≤x≤0.5）薄膜结构和性能的影响

Effects of Substitution and Substrate Strain on the Structure and Properties of Orthorhombic EuYMnO (0 ≤ x ≤ 0.5) Thin Films.

作者信息

Romaguera-Barcelay Yonny, Figueiras Fábio Gabriel, Govea-Alcaide Ernesto, Brito Walter Ricardo, Filho Henrique Duarte da Fonseca, Gandarilla Ariamna María Dip, Ţălu Ştefan, Tavares Pedro B, de la Cruz Javier Pérez

机构信息

BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3004-531 Coimbra, Portugal.

Department of Physics, Federal University of Amazonas, Manaus 69067-005, AM, Brazil.

出版信息

Materials (Basel). 2023 Jun 23;16(13):4553. doi: 10.3390/ma16134553.

DOI:10.3390/ma16134553

PMID:37444867

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10342781/

Abstract

The effects on the structure and magnetic properties of EuYMnO (0.0 ≤ x ≤ 0.5) thin films due to lattice strain were investigated and compared with those obtained in equivalent composition ceramics. The films were deposited by spin-coating chemical solution onto Pt\TiO\SiO\Si (100) standard substrates. X-ray diffraction and Raman spectroscopy measurements revealed that all films crystallize in orthorhombic structure with space group , observing an added contraction of the unit cell with increasing Y-substitution ou Eu, corresponding to a broadening of the Mn-O1-Mn angle and a gradual decrease in magnetic order response.

摘要

研究了晶格应变对EuYMnO（0.0≤x≤0.5）薄膜结构和磁性能的影响，并与相同成分陶瓷的情况进行了比较。通过旋涂化学溶液将薄膜沉积在Pt\TiO\SiO\Si（100）标准衬底上。X射线衍射和拉曼光谱测量表明，所有薄膜均以正交结构结晶，空间群为，观察到随着Y取代Eu的增加，晶胞有额外的收缩，这对应于Mn - O1 - Mn角的变宽和磁有序响应的逐渐降低。