Crystal structure, improvement of nanostructure, electrical and magnetic properties of the BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO(001) heterostructure

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-07-30 DOI:10.1016/j.jallcom.2025.182662

Ya.Yu. Matyash, N.V. Makinyan, D.V. Stryukov, K.M. Zhidel, A.V. Pavlenko

{"title":"Crystal structure, improvement of nanostructure, electrical and magnetic properties of the BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO(001) heterostructure","authors":"Ya.Yu. Matyash, N.V. Makinyan, D.V. Stryukov, K.M. Zhidel, A.V. Pavlenko","doi":"10.1016/j.jallcom.2025.182662","DOIUrl":null,"url":null,"abstract":"The crystal structure, nanostructure, magnetic response, dielectric and ferroelectric properties of BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO(001) and Sr0.6Ba0.4Nb2O6/SrRuO3/MgO(001) heterostructures were studied. The nanoscale Sr0.6Ba0.4Nb2O6(120 nm) and BiFeO3(120 nm) films were grown by the radio frequency cathode sputtering in an oxygen atmosphere and sequentially deposited on a SrRuO3(150 nm)/MgO(001) substrate. The BiFeO3 and Sr0.6Ba0.4Nb2O6 layers obtained are epitaxial. Despite the deposition of the BiFeO3 layer on top of the Sr0.6Ba0.4Nb2O6 layer, the BiFeO3 crystallographic axes were formed parallel to the MgO(001) substrate axes. Deposition of BiFeO3 layer on a Sr0.6Ba0.4Nb2O6 layer reduces roughness of the two-layer heterostructure. The voltage-induced regions (±10 V) exhibit stability more than 6 hours in both Sr0.6Ba0.4Nb2O6/SrRuO3/MgO(001) and BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO(001) heterostructures. The two-layer heterostructure demonstrates superior temperature stability of dielectric parameters compared to the single layer thin film. While magnetic response is absent in bulk BiFeO3, there is one in BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO(001) two-layer heterostructure. Thus, the formation of two-layer multiferroic heterostructure led to improvement of its nanostructure, ferroelectric, dielectric and magnetic properties in comparison with corresponding single layer thin films.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1 1","pages":""},"PeriodicalIF":6.3000,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Alloys and Compounds","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jallcom.2025.182662","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The crystal structure, nanostructure, magnetic response, dielectric and ferroelectric properties of BiFeO₃/Sr_0.6Ba_0.4Nb₂O₆/SrRuO₃/MgO(001) and Sr_0.6Ba_0.4Nb₂O₆/SrRuO₃/MgO(001) heterostructures were studied. The nanoscale Sr_0.6Ba_0.4Nb₂O₆(120 nm) and BiFeO₃(120 nm) films were grown by the radio frequency cathode sputtering in an oxygen atmosphere and sequentially deposited on a SrRuO₃(150 nm)/MgO(001) substrate. The BiFeO₃ and Sr_0.6Ba_0.4Nb₂O₆ layers obtained are epitaxial. Despite the deposition of the BiFeO₃ layer on top of the Sr_0.6Ba_0.4Nb₂O₆ layer, the BiFeO₃ crystallographic axes were formed parallel to the MgO(001) substrate axes. Deposition of BiFeO₃ layer on a Sr_0.6Ba_0.4Nb₂O₆ layer reduces roughness of the two-layer heterostructure. The voltage-induced regions (±10 V) exhibit stability more than 6 hours in both Sr_0.6Ba_0.4Nb₂O₆/SrRuO₃/MgO(001) and BiFeO₃/Sr_0.6Ba_0.4Nb₂O₆/SrRuO₃/MgO(001) heterostructures. The two-layer heterostructure demonstrates superior temperature stability of dielectric parameters compared to the single layer thin film. While magnetic response is absent in bulk BiFeO₃, there is one in BiFeO₃/Sr_0.6Ba_0.4Nb₂O₆/SrRuO₃/MgO(001) two-layer heterostructure. Thus, the formation of two-layer multiferroic heterostructure led to improvement of its nanostructure, ferroelectric, dielectric and magnetic properties in comparison with corresponding single layer thin films.

查看原文本刊更多论文

改进了BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO（001）异质结构的晶体结构、纳米结构、电学和磁学性能

研究了BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO（001）和Sr0.6Ba0.4Nb2O6/SrRuO3/MgO（001）异质结构的晶体结构、纳米结构、磁响应、介电性能和铁电性能。采用射频阴极溅射法制备了Sr0.6Ba0.4Nb2O6（120 nm）和BiFeO3（120 nm）纳米薄膜，并在SrRuO3(150 nm)/MgO（001）衬底上依次沉积。得到的BiFeO3和Sr0.6Ba0.4Nb2O6是外延层。尽管在Sr0.6Ba0.4Nb2O6层上沉积了BiFeO3层，但BiFeO3的结晶轴与MgO（001）衬底轴平行。在Sr0.6Ba0.4Nb2O6层上沉积BiFeO3层降低了两层异质结构的粗糙度。在Sr0.6Ba0.4Nb2O6/SrRuO3/MgO（001）和BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO（001）异质结构中，电压诱导区（±10 V）均表现出超过6小时的稳定性。与单层薄膜相比，双层异质结构具有更好的介电参数温度稳定性。在BiFeO3/Sr0.6Ba0.4Nb2O6/SrRuO3/MgO（001）两层异质结构中存在磁响应，而在BiFeO3/Sr0.6Ba0.4Nb2O6中存在磁响应。因此，两层多铁质异质结构的形成导致其纳米结构、铁电、介电和磁性能比相应的单层薄膜有所改善。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.