Crystal Structure and Magnetic Properties of the Novel Compound ErMn5Ge3
The RE-M-Ge systems (RE: rare earths, M: transition group elements) contain a large number of compounds with special magnetic properties. A novel compound ErMn5Ge3 was found during the investigation on the phase diagram of the Er-Mn-Ge ternary system, and its crystal structure and magnetic propertie...
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| description | The RE-M-Ge systems (RE: rare earths, M: transition group elements) contain a large number of compounds with special magnetic properties. A novel compound ErMn5Ge3 was found during the investigation on the phase diagram of the Er-Mn-Ge ternary system, and its crystal structure and magnetic properties were investigated. Powder X-ray diffraction results show that ErMn5Ge3 crystallizes in an orthorhombic YNi5Si3-type structure with the space group Pnma (No. 62) and the lattice parameters of a = 13.0524(6) Å, b = 3.8853(7) Å, and c = 11.4027(4) Å. The magnetization curves and isothermal magnetization curves from 100 to 300 K were measured for ErMn5Ge3. Magnetic tests showed that the compound was weakly magnetic and had a Curie temperature of 304 K. It is believed that its magnetic properties are determined by Mn atoms, which are surrounded by a complex environment, leading to uncertainty in the direction of the magnetic moment and hence poor magnetic ordering. This uncertainty simultaneously leads to a significant separation of the ZFC and FZ curves. First-principles calculations confirm that the magnetic properties of ErMn5Ge3 are mainly provided by the Mn atoms, and its magnetic moment is calculated to be about 4.5 μB. A possible magnetic structure model with simultaneous Mn-Mn ferromagnetic/antiferromagnetic coupling is constructed based on the Mn atom spacing, which can well explain the magnetic performance of ErMn5Ge3. |
| doi_str_mv | 10.3390/ma18020359 |
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A novel compound ErMn5Ge3 was found during the investigation on the phase diagram of the Er-Mn-Ge ternary system, and its crystal structure and magnetic properties were investigated. Powder X-ray diffraction results show that ErMn5Ge3 crystallizes in an orthorhombic YNi5Si3-type structure with the space group Pnma (No. 62) and the lattice parameters of a = 13.0524(6) Å, b = 3.8853(7) Å, and c = 11.4027(4) Å. The magnetization curves and isothermal magnetization curves from 100 to 300 K were measured for ErMn5Ge3. Magnetic tests showed that the compound was weakly magnetic and had a Curie temperature of 304 K. It is believed that its magnetic properties are determined by Mn atoms, which are surrounded by a complex environment, leading to uncertainty in the direction of the magnetic moment and hence poor magnetic ordering. This uncertainty simultaneously leads to a significant separation of the ZFC and FZ curves. First-principles calculations confirm that the magnetic properties of ErMn5Ge3 are mainly provided by the Mn atoms, and its magnetic moment is calculated to be about 4.5 μB. A possible magnetic structure model with simultaneous Mn-Mn ferromagnetic/antiferromagnetic coupling is constructed based on the Mn atom spacing, which can well explain the magnetic performance of ErMn5Ge3.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma18020359</identifier><identifier>PMID: 39859830</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Antiferromagnetism ; Crystal lattices ; Crystal structure ; Curie temperature ; Electrons ; Ferromagnetism ; First principles ; Lattice parameters ; Magnetic moments ; Magnetic properties ; Magnetic structure ; Magnetization curves ; Phase diagrams ; Phase transitions ; Rare earth elements ; Temperature ; Ternary systems ; Uncertainty ; X ray powder diffraction</subject><ispartof>Materials, 2025-01, Vol.18 (2), p.359</ispartof><rights>2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2025 by the authors. 2025</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c1525-f8ed69e6ffecac34de0e148e5374e1ef0041180c24768798c051c30f0e0fa91c3</cites><orcidid>0009-0001-8955-7539 ; 0000-0003-0785-8758</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC11766625/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC11766625/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,53766,53768</link.rule.ids></links><search><creatorcontrib>Yang, Nidong</creatorcontrib><creatorcontrib>Yang, Yunxiang</creatorcontrib><creatorcontrib>Luo, Hui</creatorcontrib><creatorcontrib>Fang, Shuohai</creatorcontrib><creatorcontrib>Ju, Tianhua</creatorcontrib><creatorcontrib>Lei, Shengyuan</creatorcontrib><creatorcontrib>He, Wei</creatorcontrib><title>Crystal Structure and Magnetic Properties of the Novel Compound ErMn5Ge3</title><title>Materials</title><description>The RE-M-Ge systems (RE: rare earths, M: transition group elements) contain a large number of compounds with special magnetic properties. A novel compound ErMn5Ge3 was found during the investigation on the phase diagram of the Er-Mn-Ge ternary system, and its crystal structure and magnetic properties were investigated. Powder X-ray diffraction results show that ErMn5Ge3 crystallizes in an orthorhombic YNi5Si3-type structure with the space group Pnma (No. 62) and the lattice parameters of a = 13.0524(6) Å, b = 3.8853(7) Å, and c = 11.4027(4) Å. The magnetization curves and isothermal magnetization curves from 100 to 300 K were measured for ErMn5Ge3. Magnetic tests showed that the compound was weakly magnetic and had a Curie temperature of 304 K. It is believed that its magnetic properties are determined by Mn atoms, which are surrounded by a complex environment, leading to uncertainty in the direction of the magnetic moment and hence poor magnetic ordering. This uncertainty simultaneously leads to a significant separation of the ZFC and FZ curves. First-principles calculations confirm that the magnetic properties of ErMn5Ge3 are mainly provided by the Mn atoms, and its magnetic moment is calculated to be about 4.5 μB. A possible magnetic structure model with simultaneous Mn-Mn ferromagnetic/antiferromagnetic coupling is constructed based on the Mn atom spacing, which can well explain the magnetic performance of ErMn5Ge3.</description><subject>Antiferromagnetism</subject><subject>Crystal lattices</subject><subject>Crystal structure</subject><subject>Curie temperature</subject><subject>Electrons</subject><subject>Ferromagnetism</subject><subject>First principles</subject><subject>Lattice parameters</subject><subject>Magnetic moments</subject><subject>Magnetic properties</subject><subject>Magnetic structure</subject><subject>Magnetization curves</subject><subject>Phase diagrams</subject><subject>Phase transitions</subject><subject>Rare earth elements</subject><subject>Temperature</subject><subject>Ternary systems</subject><subject>Uncertainty</subject><subject>X ray powder diffraction</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2025</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkVtLAzEQhYMoKtoXf8GCLyJUZzabbfIkUqoVvIH6HGI60ZXdTU12C_33Rlu8zcsMzMdhzhzGDhBOOFdw2hiUkAMXaoPtolLlEFVRbP6ad9ggxjdIxTnKXG2zHa6kUJLDLpuOwzJ2ps4eutDbrg-UmXaW3ZiXlrrKZvfBzyl0FcXMu6x7pezWL6jOxr6Z-z6Rk3DTikvi-2zLmTrSYN332NPF5HE8HV7fXV6Nz6-HFkUuhk7SrFRUOkfWWF7MCAgLSYKPCkJyAAUmQzYvRqUcKWlBoOXggMAZlcY9drbSnffPDc0stV0wtZ6HqjFhqb2p9N9NW73qF7_QiKOyLHORFI7WCsG_9xQ73VTRUl2blnwfNcf0G0AFMqGH_9A334c2-fuiRIGAZaKOV5QNPsZA7vsaBP0Zkv4JiX8AD3SBiA</recordid><startdate>20250114</startdate><enddate>20250114</enddate><creator>Yang, Nidong</creator><creator>Yang, Yunxiang</creator><creator>Luo, Hui</creator><creator>Fang, Shuohai</creator><creator>Ju, Tianhua</creator><creator>Lei, Shengyuan</creator><creator>He, Wei</creator><general>MDPI AG</general><general>MDPI</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0009-0001-8955-7539</orcidid><orcidid>https://orcid.org/0000-0003-0785-8758</orcidid></search><sort><creationdate>20250114</creationdate><title>Crystal Structure and Magnetic Properties of the Novel Compound ErMn5Ge3</title><author>Yang, Nidong ; Yang, Yunxiang ; Luo, Hui ; Fang, Shuohai ; Ju, Tianhua ; Lei, Shengyuan ; He, Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1525-f8ed69e6ffecac34de0e148e5374e1ef0041180c24768798c051c30f0e0fa91c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2025</creationdate><topic>Antiferromagnetism</topic><topic>Crystal lattices</topic><topic>Crystal structure</topic><topic>Curie temperature</topic><topic>Electrons</topic><topic>Ferromagnetism</topic><topic>First principles</topic><topic>Lattice parameters</topic><topic>Magnetic moments</topic><topic>Magnetic properties</topic><topic>Magnetic structure</topic><topic>Magnetization curves</topic><topic>Phase diagrams</topic><topic>Phase transitions</topic><topic>Rare earth elements</topic><topic>Temperature</topic><topic>Ternary systems</topic><topic>Uncertainty</topic><topic>X ray powder diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Nidong</creatorcontrib><creatorcontrib>Yang, Yunxiang</creatorcontrib><creatorcontrib>Luo, Hui</creatorcontrib><creatorcontrib>Fang, Shuohai</creatorcontrib><creatorcontrib>Ju, Tianhua</creatorcontrib><creatorcontrib>Lei, Shengyuan</creatorcontrib><creatorcontrib>He, Wei</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Nidong</au><au>Yang, Yunxiang</au><au>Luo, Hui</au><au>Fang, Shuohai</au><au>Ju, Tianhua</au><au>Lei, Shengyuan</au><au>He, Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Crystal Structure and Magnetic Properties of the Novel Compound ErMn5Ge3</atitle><jtitle>Materials</jtitle><date>2025-01-14</date><risdate>2025</risdate><volume>18</volume><issue>2</issue><spage>359</spage><pages>359-</pages><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>The RE-M-Ge systems (RE: rare earths, M: transition group elements) contain a large number of compounds with special magnetic properties. A novel compound ErMn5Ge3 was found during the investigation on the phase diagram of the Er-Mn-Ge ternary system, and its crystal structure and magnetic properties were investigated. Powder X-ray diffraction results show that ErMn5Ge3 crystallizes in an orthorhombic YNi5Si3-type structure with the space group Pnma (No. 62) and the lattice parameters of a = 13.0524(6) Å, b = 3.8853(7) Å, and c = 11.4027(4) Å. The magnetization curves and isothermal magnetization curves from 100 to 300 K were measured for ErMn5Ge3. Magnetic tests showed that the compound was weakly magnetic and had a Curie temperature of 304 K. It is believed that its magnetic properties are determined by Mn atoms, which are surrounded by a complex environment, leading to uncertainty in the direction of the magnetic moment and hence poor magnetic ordering. This uncertainty simultaneously leads to a significant separation of the ZFC and FZ curves. First-principles calculations confirm that the magnetic properties of ErMn5Ge3 are mainly provided by the Mn atoms, and its magnetic moment is calculated to be about 4.5 μB. A possible magnetic structure model with simultaneous Mn-Mn ferromagnetic/antiferromagnetic coupling is constructed based on the Mn atom spacing, which can well explain the magnetic performance of ErMn5Ge3.</abstract><cop>Basel</cop><pub>MDPI AG</pub><pmid>39859830</pmid><doi>10.3390/ma18020359</doi><orcidid>https://orcid.org/0009-0001-8955-7539</orcidid><orcidid>https://orcid.org/0000-0003-0785-8758</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Antiferromagnetism Crystal lattices Crystal structure Curie temperature Electrons Ferromagnetism First principles Lattice parameters Magnetic moments Magnetic properties Magnetic structure Magnetization curves Phase diagrams Phase transitions Rare earth elements Temperature Ternary systems Uncertainty X ray powder diffraction |
| title | Crystal Structure and Magnetic Properties of the Novel Compound ErMn5Ge3 |
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