{"title":"RE2PdGe3 家族中 Sm2PdGe3 的合成与物理性质","authors":"","doi":"10.1016/j.jssc.2024.125010","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, we present the crystallographic and magnetic characterization of a new intermetallic compound Sm<sub>2</sub>PdGe<sub>3,</sub> which was synthetized by a two stage method employing an eutectic alloy. The investigations carried out exhibited, that Sm<sub>2</sub>PdGe<sub>3</sub> crystallize in AlB<sub>2</sub>-type structure with lattice parameters <em>a</em> = 4.2189(1) Å and <em>c</em> = 4.1031(2) Å. This compound can be classified as a cluster-glass with a spin freezing temperature <em>T</em><sub><em>f</em></sub> = 10.5 K. Furthermore, there were carried out the analysis of the role of the rare earth (<em>RE</em>) elements on the structural parameters of <em>RE</em><sub>2</sub>PdGe<sub>3</sub> and draw a correlation between the <em>RE</em> radius and the unit cell parameters. We show that a deviation from the ideal 1:3 Pd:Ge ratio is necessary to synthesize <em>RE</em><sub>2</sub>PdGe<sub>3</sub> with smaller <em>RE</em> elements.</p></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and physical properties of Sm2PdGe3 in a context of RE2PdGe3 family\",\"authors\":\"\",\"doi\":\"10.1016/j.jssc.2024.125010\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this study, we present the crystallographic and magnetic characterization of a new intermetallic compound Sm<sub>2</sub>PdGe<sub>3,</sub> which was synthetized by a two stage method employing an eutectic alloy. The investigations carried out exhibited, that Sm<sub>2</sub>PdGe<sub>3</sub> crystallize in AlB<sub>2</sub>-type structure with lattice parameters <em>a</em> = 4.2189(1) Å and <em>c</em> = 4.1031(2) Å. This compound can be classified as a cluster-glass with a spin freezing temperature <em>T</em><sub><em>f</em></sub> = 10.5 K. Furthermore, there were carried out the analysis of the role of the rare earth (<em>RE</em>) elements on the structural parameters of <em>RE</em><sub>2</sub>PdGe<sub>3</sub> and draw a correlation between the <em>RE</em> radius and the unit cell parameters. We show that a deviation from the ideal 1:3 Pd:Ge ratio is necessary to synthesize <em>RE</em><sub>2</sub>PdGe<sub>3</sub> with smaller <em>RE</em> elements.</p></div>\",\"PeriodicalId\":378,\"journal\":{\"name\":\"Journal of Solid State Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-09-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S002245962400464X\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S002245962400464X","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
摘要
在本研究中,我们介绍了一种新型金属间化合物 Sm2PdGe3 的晶体学和磁性特征,该化合物是通过采用共晶合金的两阶段法合成的。研究表明,Sm2PdGe3 结晶为 AlB2- 型结构,晶格参数 a = 4.2189(1) Å 和 c = 4.1031(2) Å。该化合物可归类为自旋凝固温度 Tf = 10.5 K 的团簇玻璃。我们的研究表明,要合成具有较小稀土元素的 RE2PdGe3,必须偏离理想的 1:3 Pd:Ge 比例。
Synthesis and physical properties of Sm2PdGe3 in a context of RE2PdGe3 family
In this study, we present the crystallographic and magnetic characterization of a new intermetallic compound Sm2PdGe3, which was synthetized by a two stage method employing an eutectic alloy. The investigations carried out exhibited, that Sm2PdGe3 crystallize in AlB2-type structure with lattice parameters a = 4.2189(1) Å and c = 4.1031(2) Å. This compound can be classified as a cluster-glass with a spin freezing temperature Tf = 10.5 K. Furthermore, there were carried out the analysis of the role of the rare earth (RE) elements on the structural parameters of RE2PdGe3 and draw a correlation between the RE radius and the unit cell parameters. We show that a deviation from the ideal 1:3 Pd:Ge ratio is necessary to synthesize RE2PdGe3 with smaller RE elements.
期刊介绍:
Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.