{"title":"β-Mn手性化合物Co6.5Ru1.5Zn8Mn4的反常大拓扑霍尔效应：电子-电子相互作用促进量子干涉效应","authors":"Afsar Ahmed, Arnab Bhattacharya, I Das","doi":"10.1088/1361-648X/ada59f","DOIUrl":null,"url":null,"abstract":"<p><p><i>β</i>-Mn-type chiral cubic Co<sub><i>x</i></sub>Zn<sub><i>y</i></sub>Mn<sub><i>z</i></sub>(<i>x</i>+<i>y</i>+<i>z</i>= 20) alloys present a intriguing platform for exploring topological magnetic orderings with promising spintronic potential. This study examines the magnetotransport properties of Co<sub>6.5</sub>Ru<sub>1.5</sub>Zn<sub>8</sub>Mn<sub>4</sub>, a skyrmion-hosting<i>β</i>-Mn-type chiral compound. The longitudinal resistivity (<i>ρ</i><sub><i>xx</i></sub>) exhibits field-insensitive low-temperature minima due to quantum interference effects, driven byT1/2-dependent electron-electron interactions. We observe a substantial intrinsic anomalous Hall conductivity, unaffected by quantum interference. Additionally, a pronounced topological Hall effect is observed at the metastable skyrmionic state, persisting up toTCand achieving notable magnitudes for stoichiometric compounds. These results position the Co<sub><i>x</i></sub>Zn<sub><i>y</i></sub>Mn<sub><i>z</i></sub>family favourably to leverage the rich pallete of emergent magnetotransport properties for spintronic applications.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":" ","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Anomalous and large topological Hall effects in<i>β</i>-Mn chiral compound Co<sub>6.5</sub>Ru<sub>1.5</sub>Zn<sub>8</sub>Mn<sub>4</sub>: electron electron interaction facilitated quantum interference effect.\",\"authors\":\"Afsar Ahmed, Arnab Bhattacharya, I Das\",\"doi\":\"10.1088/1361-648X/ada59f\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p><i>β</i>-Mn-type chiral cubic Co<sub><i>x</i></sub>Zn<sub><i>y</i></sub>Mn<sub><i>z</i></sub>(<i>x</i>+<i>y</i>+<i>z</i>= 20) alloys present a intriguing platform for exploring topological magnetic orderings with promising spintronic potential. This study examines the magnetotransport properties of Co<sub>6.5</sub>Ru<sub>1.5</sub>Zn<sub>8</sub>Mn<sub>4</sub>, a skyrmion-hosting<i>β</i>-Mn-type chiral compound. The longitudinal resistivity (<i>ρ</i><sub><i>xx</i></sub>) exhibits field-insensitive low-temperature minima due to quantum interference effects, driven byT1/2-dependent electron-electron interactions. We observe a substantial intrinsic anomalous Hall conductivity, unaffected by quantum interference. Additionally, a pronounced topological Hall effect is observed at the metastable skyrmionic state, persisting up toTCand achieving notable magnitudes for stoichiometric compounds. These results position the Co<sub><i>x</i></sub>Zn<sub><i>y</i></sub>Mn<sub><i>z</i></sub>family favourably to leverage the rich pallete of emergent magnetotransport properties for spintronic applications.</p>\",\"PeriodicalId\":16776,\"journal\":{\"name\":\"Journal of Physics: Condensed Matter\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-01-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Physics: Condensed Matter\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1088/1361-648X/ada59f\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, CONDENSED MATTER\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics: Condensed Matter","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1361-648X/ada59f","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0
摘要
β- mn型手性立方CoxZnyMnz （x + y + z = 20）合金为探索具有自旋电子势的拓扑磁有序提供了一个有趣的平台。本研究考察了含有skyrmion的β- mn型手性化合物Co6.5Ru1.5Zn8Mn4的磁输运性质。纵向电阻率（ρxx）表现出场不敏感的低温最小值，这是由t1 /2依赖的电子-电子相互作用驱动的量子干涉效应所致。我们观察到实质性的本征异常霍尔电导率（AHC），不受量子干涉的影响。此外，在亚稳天离子状态下观察到明显的拓扑霍尔效应，持续到TC，并且对化学计量化合物达到显著的量级。这些结果使CoxZnyMnz家族有利地利用自旋电子应用中丰富的紧急磁输运性质。
Anomalous and large topological Hall effects inβ-Mn chiral compound Co6.5Ru1.5Zn8Mn4: electron electron interaction facilitated quantum interference effect.
β-Mn-type chiral cubic CoxZnyMnz(x+y+z= 20) alloys present a intriguing platform for exploring topological magnetic orderings with promising spintronic potential. This study examines the magnetotransport properties of Co6.5Ru1.5Zn8Mn4, a skyrmion-hostingβ-Mn-type chiral compound. The longitudinal resistivity (ρxx) exhibits field-insensitive low-temperature minima due to quantum interference effects, driven byT1/2-dependent electron-electron interactions. We observe a substantial intrinsic anomalous Hall conductivity, unaffected by quantum interference. Additionally, a pronounced topological Hall effect is observed at the metastable skyrmionic state, persisting up toTCand achieving notable magnitudes for stoichiometric compounds. These results position the CoxZnyMnzfamily favourably to leverage the rich pallete of emergent magnetotransport properties for spintronic applications.
期刊介绍：
Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
