稀释铁电材料Ba0.6 Eu0.4TiO3的磁热效应

2018 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2018-04-23 DOI:10.1109/INTMAG.2018.8508657

K. Rubi, R. Mahendiran

{"title":"稀释铁电材料Ba0.6 Eu0.4TiO3的磁热效应","authors":"K. Rubi, R. Mahendiran","doi":"10.1109/INTMAG.2018.8508657","DOIUrl":null,"url":null,"abstract":"We measured the magnetization (M) and heat capacity (C<inf>p</inf>) in the perovskite ferroelectric BaTiO<inf>3</inf> wherein 40 % Ba site is replaced by magnetic Eu2+ (4f7, S = 7/2) ions. The temperature dependence of M and C<inf>p</inf> suggest that Ba<inf>0.6</inf>Eu<inf>0.4</inf>TiO<inf>3</inf>- is paramagnetic at and above 2.5 K. Isothermal magnetization and heat capacity data were used to estimate isothermal magnetic entropy change \\left(\\DeltaS_{\\mathrm {m \\right) and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits 16.2 K as the field is changed from 0 T to 7 T, which suggests that this compound could be a potential candidate for cryogenic magnetic cooling.","PeriodicalId":6571,"journal":{"name":"2018 IEEE International Magnetic Conference (INTERMAG)","volume":"2 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2018-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Magnetocaloric effect in a diluted ferroelectric: Ba0.6 Eu0.4TiO3\",\"authors\":\"K. Rubi, R. Mahendiran\",\"doi\":\"10.1109/INTMAG.2018.8508657\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We measured the magnetization (M) and heat capacity (C<inf>p</inf>) in the perovskite ferroelectric BaTiO<inf>3</inf> wherein 40 % Ba site is replaced by magnetic Eu2+ (4f7, S = 7/2) ions. The temperature dependence of M and C<inf>p</inf> suggest that Ba<inf>0.6</inf>Eu<inf>0.4</inf>TiO<inf>3</inf>- is paramagnetic at and above 2.5 K. Isothermal magnetization and heat capacity data were used to estimate isothermal magnetic entropy change \\\\left(\\\\DeltaS_{\\\\mathrm {m \\\\right) and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits 16.2 K as the field is changed from 0 T to 7 T, which suggests that this compound could be a potential candidate for cryogenic magnetic cooling.\",\"PeriodicalId\":6571,\"journal\":{\"name\":\"2018 IEEE International Magnetic Conference (INTERMAG)\",\"volume\":\"2 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-04-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 IEEE International Magnetic Conference (INTERMAG)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/INTMAG.2018.8508657\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE International Magnetic Conference (INTERMAG)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INTMAG.2018.8508657","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

我们测量了钙钛矿铁电BaTiO3的磁化强度(M)和热容量(Cp) % Ba site is replaced by magnetic Eu2+ (4f7, S = 7/2) ions. The temperature dependence of M and Cp suggest that Ba0.6Eu0.4TiO3- is paramagnetic at and above 2.5 K. Isothermal magnetization and heat capacity data were used to estimate isothermal magnetic entropy change \left(\DeltaS_{\mathrm {m \right) and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits 16.2 K as the field is changed from 0 T to 7 T, which suggests that this compound could be a potential candidate for cryogenic magnetic cooling.

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Magnetocaloric effect in a diluted ferroelectric: Ba0.6 Eu0.4TiO3

We measured the magnetization (M) and heat capacity (Cp) in the perovskite ferroelectric BaTiO3 wherein 40 % Ba site is replaced by magnetic Eu²⁺ (4f⁷, S = 7/2) ions. The temperature dependence of M and Cp suggest that Ba0.6Eu0.4TiO3- is paramagnetic at and above 2.5 K. Isothermal magnetization and heat capacity data were used to estimate isothermal magnetic entropy change \left(\DeltaS_{\mathrm {m \right) and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits and adiabatic temperature change. It is found that this magneto-ferroelectric compound exhibits 16.2 K as the field is changed from 0 T to 7 T, which suggests that this compound could be a potential candidate for cryogenic magnetic cooling.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2018 IEEE International Magnetic Conference (INTERMAG)

自引率

0.00%

发文量