A. N. Azarevich, A. V. Bogach, O. N. Khrykina, N. B. Bolotina, V. M. Gridchina, N. Yu. Shitsevalova, S. Yu. Gavrilkin, A. Yu. Tsvetkov, S. Gabáni, K. Flachbart, A. V. Kuznetsov, N. E. Sluchanko
{"title":"Localized Superconductivity in LaB6 Hexaboride with Dynamic Charge Stripes","authors":"A. N. Azarevich, A. V. Bogach, O. N. Khrykina, N. B. Bolotina, V. M. Gridchina, N. Yu. Shitsevalova, S. Yu. Gavrilkin, A. Yu. Tsvetkov, S. Gabáni, K. Flachbart, A. V. Kuznetsov, N. E. Sluchanko","doi":"10.1134/S0021364024601696","DOIUrl":null,"url":null,"abstract":"<p>Type II superconductivity with <i>T</i><sub>c</sub> ∼ 6 K is discovered in LaB<sub>6</sub>. The critical fields are determined and the estimates for the coherence length ξ(0) ∼ 240 Å, the Ginzburg−Landau parameter κ<sub>GL</sub> ∼ 2, and the electron–phonon coupling constant λ<sub><i>e</i>−<i>ph</i></sub> ≈ 0.75 are obtained. Precision X-ray diffraction studies at <i>T</i> = 30 K reveal three-dimensional charge-stripe structures in LaB<sub>6</sub>. The scenario of superconductivity localized near filamentary channels with a fluctuating electron density arising in the lanthanum hexaboride matrix is discussed.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"119 12","pages":"934 - 941"},"PeriodicalIF":1.3000,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364024601696.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"JETP Letters","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S0021364024601696","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Type II superconductivity with Tc ∼ 6 K is discovered in LaB6. The critical fields are determined and the estimates for the coherence length ξ(0) ∼ 240 Å, the Ginzburg−Landau parameter κGL ∼ 2, and the electron–phonon coupling constant λe−ph ≈ 0.75 are obtained. Precision X-ray diffraction studies at T = 30 K reveal three-dimensional charge-stripe structures in LaB6. The scenario of superconductivity localized near filamentary channels with a fluctuating electron density arising in the lanthanum hexaboride matrix is discussed.
期刊介绍：
All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
