Nidhi Sheoran, Sourabh Sharma, Mukesh Sheoran, Vinod Kumar, Ashok Kumar, O. P. Thakur
{"title":"CoFe2O4-BaTiO3 纳米复合材料的结构、磁性、介电和铁电特性","authors":"Nidhi Sheoran, Sourabh Sharma, Mukesh Sheoran, Vinod Kumar, Ashok Kumar, O. P. Thakur","doi":"10.1007/s11664-024-11419-9","DOIUrl":null,"url":null,"abstract":"<p>Nano-size spinel ferrite CoFe<sub>2</sub>O<sub>4</sub> (CFO), ferroelectric BaTiO<sub>3</sub> (BTO), and their nanocomposites BTO@CFO (BTO nanoparticles are added during the synthesis of CFO) and CFO@BTO (CFO nanoparticles are added during the synthesis of BTO) were synthesized using a combination of chemical co-precipitation and sol–gel routes, respectively. The phase formation and crystallinity of the bare CFO and BTO and their nanocomposites were verified via x-ray diffraction (XRD) patterns. High-resolution transmission electron microscopy (HRTEM) revealed the formation of the nanocomposites. Magnetization measurements confirmed the ferromagnetic behavior of all the samples except BTO, in which superposition of a weak ferromagnetic and diamagnetic response occurred due to its nanostructure. Magnetization versus temperature (<i>M</i>–<i>T</i> plot) measurements showed an anomaly near the ferroelectric-to-paraelectric phase transition of BTO. Also, the dielectric constant (<i>ε</i>′) and loss tangent (tan<i>δ</i>) with respect to frequency (10<sup>2</sup>–10<sup>6</sup> Hz) and temperature (300–700 K) were examined. The <i>ε</i>′–<i>T</i> curve of the nanocomposites exhibited an anomaly at the same temperature as observed in the <i>M</i>–<i>T</i> plot, indicating the inherent magnetoelectric coupling in the nanocomposites. The energy storage properties of BTO and the nanocomposites were examined via <i>P</i>–<i>E</i> loop analysis and confirmed that the CFO@BTO sample exhibits maximum energy storage efficiency.</p>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural, Magnetic, Dielectric, and Ferroelectric Properties of CoFe2O4-BaTiO3 Nanocomposites\",\"authors\":\"Nidhi Sheoran, Sourabh Sharma, Mukesh Sheoran, Vinod Kumar, Ashok Kumar, O. P. Thakur\",\"doi\":\"10.1007/s11664-024-11419-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Nano-size spinel ferrite CoFe<sub>2</sub>O<sub>4</sub> (CFO), ferroelectric BaTiO<sub>3</sub> (BTO), and their nanocomposites BTO@CFO (BTO nanoparticles are added during the synthesis of CFO) and CFO@BTO (CFO nanoparticles are added during the synthesis of BTO) were synthesized using a combination of chemical co-precipitation and sol–gel routes, respectively. The phase formation and crystallinity of the bare CFO and BTO and their nanocomposites were verified via x-ray diffraction (XRD) patterns. High-resolution transmission electron microscopy (HRTEM) revealed the formation of the nanocomposites. Magnetization measurements confirmed the ferromagnetic behavior of all the samples except BTO, in which superposition of a weak ferromagnetic and diamagnetic response occurred due to its nanostructure. Magnetization versus temperature (<i>M</i>–<i>T</i> plot) measurements showed an anomaly near the ferroelectric-to-paraelectric phase transition of BTO. Also, the dielectric constant (<i>ε</i>′) and loss tangent (tan<i>δ</i>) with respect to frequency (10<sup>2</sup>–10<sup>6</sup> Hz) and temperature (300–700 K) were examined. The <i>ε</i>′–<i>T</i> curve of the nanocomposites exhibited an anomaly at the same temperature as observed in the <i>M</i>–<i>T</i> plot, indicating the inherent magnetoelectric coupling in the nanocomposites. The energy storage properties of BTO and the nanocomposites were examined via <i>P</i>–<i>E</i> loop analysis and confirmed that the CFO@BTO sample exhibits maximum energy storage efficiency.</p>\",\"PeriodicalId\":626,\"journal\":{\"name\":\"Journal of Electronic Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-09-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electronic Materials\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s11664-024-11419-9\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electronic Materials","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s11664-024-11419-9","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Structural, Magnetic, Dielectric, and Ferroelectric Properties of CoFe2O4-BaTiO3 Nanocomposites
Nano-size spinel ferrite CoFe2O4 (CFO), ferroelectric BaTiO3 (BTO), and their nanocomposites BTO@CFO (BTO nanoparticles are added during the synthesis of CFO) and CFO@BTO (CFO nanoparticles are added during the synthesis of BTO) were synthesized using a combination of chemical co-precipitation and sol–gel routes, respectively. The phase formation and crystallinity of the bare CFO and BTO and their nanocomposites were verified via x-ray diffraction (XRD) patterns. High-resolution transmission electron microscopy (HRTEM) revealed the formation of the nanocomposites. Magnetization measurements confirmed the ferromagnetic behavior of all the samples except BTO, in which superposition of a weak ferromagnetic and diamagnetic response occurred due to its nanostructure. Magnetization versus temperature (M–T plot) measurements showed an anomaly near the ferroelectric-to-paraelectric phase transition of BTO. Also, the dielectric constant (ε′) and loss tangent (tanδ) with respect to frequency (102–106 Hz) and temperature (300–700 K) were examined. The ε′–T curve of the nanocomposites exhibited an anomaly at the same temperature as observed in the M–T plot, indicating the inherent magnetoelectric coupling in the nanocomposites. The energy storage properties of BTO and the nanocomposites were examined via P–E loop analysis and confirmed that the CFO@BTO sample exhibits maximum energy storage efficiency.
期刊介绍:
The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications.
Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field.
A journal of The Minerals, Metals & Materials Society.