Evidence of spin and charge density waves in Chromium electronic bands.

IF 7.5 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Communications Materials Pub Date : 2025-01-01 Epub Date: 2025-04-12 DOI:10.1038/s43246-025-00789-0
Federico Bisti, Paolo Settembri, Jan Minár, Victor A Rogalev, Roland Widmer, Oliver Gröning, Ming Shi, Thorsten Schmitt, Gianni Profeta, Vladimir N Strocov
{"title":"Evidence of spin and charge density waves in Chromium electronic bands.","authors":"Federico Bisti, Paolo Settembri, Jan Minár, Victor A Rogalev, Roland Widmer, Oliver Gröning, Ming Shi, Thorsten Schmitt, Gianni Profeta, Vladimir N Strocov","doi":"10.1038/s43246-025-00789-0","DOIUrl":null,"url":null,"abstract":"<p><p>The incommensurate spin density wave (SDW) of Chromium represents the classic example of itinerant antiferromagnetism induced by the nesting of the Fermi surface, which is further enriched by the co-presence of a charge density wave (CDW). Here, we explore its electronic band structure using soft-X-ray angle-resolved photoemission spectroscopy (ARPES) for a proper bulk-sensitive investigation. We find that the long-range magnetic order gives rise to a very rich ARPES signal, which can only be interpreted with a proper first-principles description of the SDW and CDW, combined with a band unfolding procedure, reaching a remarkable agreement with experiments. Additional features of the SDW order are obscured by superimposed effects related to the photoemission process, which, unexpectedly, are not predicted by the free-electron model for the final states. We demonstrate that, even for excitation photon energies up to 1 keV, a multiple scattering description of the photoemission final states is required.</p>","PeriodicalId":10589,"journal":{"name":"Communications Materials","volume":"6 1","pages":"70"},"PeriodicalIF":7.5000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11993358/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Communications Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1038/s43246-025-00789-0","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/4/12 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The incommensurate spin density wave (SDW) of Chromium represents the classic example of itinerant antiferromagnetism induced by the nesting of the Fermi surface, which is further enriched by the co-presence of a charge density wave (CDW). Here, we explore its electronic band structure using soft-X-ray angle-resolved photoemission spectroscopy (ARPES) for a proper bulk-sensitive investigation. We find that the long-range magnetic order gives rise to a very rich ARPES signal, which can only be interpreted with a proper first-principles description of the SDW and CDW, combined with a band unfolding procedure, reaching a remarkable agreement with experiments. Additional features of the SDW order are obscured by superimposed effects related to the photoemission process, which, unexpectedly, are not predicted by the free-electron model for the final states. We demonstrate that, even for excitation photon energies up to 1 keV, a multiple scattering description of the photoemission final states is required.

铬电子带中自旋和电荷密度波的证据。
铬的不适应自旋密度波(SDW)代表了费米表面嵌套引起的流动反铁磁性的经典例子,而电荷密度波(CDW)的共同存在使其进一步丰富。在这里,我们利用软x射线角分辨光发射光谱(ARPES)对其电子能带结构进行了适当的体敏感研究。我们发现,长程磁序产生了非常丰富的ARPES信号,只有对SDW和CDW进行适当的第一性原理描述,并结合波段展开程序才能解释这些信号,与实验结果非常吻合。SDW阶的附加特征被与光电过程相关的叠加效应所掩盖,这出乎意料地不是最终态的自由电子模型所预测的。我们证明,即使激发光子能量高达1 keV,也需要对光电最终态进行多重散射描述。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Communications Materials
Communications Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
12.10
自引率
1.30%
发文量
85
审稿时长
17 weeks
期刊介绍: Communications Materials, a selective open access journal within Nature Portfolio, is dedicated to publishing top-tier research, reviews, and commentary across all facets of materials science. The journal showcases significant advancements in specialized research areas, encompassing both fundamental and applied studies. Serving as an open access option for materials sciences, Communications Materials applies less stringent criteria for impact and significance compared to Nature-branded journals, including Nature Communications.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信