Shenglong Liu , Yuanlong Li , Yiyu Liu , Zhengqiao Li , Lei Qin , Hua Wu , Ying Xing
{"title":"Growth of 2D van der Waals superconductor-ferromagnet NbSe2-VSe2 heterostructure by CVD method","authors":"Shenglong Liu , Yuanlong Li , Yiyu Liu , Zhengqiao Li , Lei Qin , Hua Wu , Ying Xing","doi":"10.1016/j.matlet.2025.138603","DOIUrl":null,"url":null,"abstract":"<div><div>Two-dimensional (2D) superconductor-ferromagnet van der Waals heterostructures have recently arisen wide research interests in low dimensional devices on spintronics and quantum computation. However, the synthesis of atomically thin heterostructures is quite challenging. In this paper, we have successfully synthesized superconducting NbSe<sub>2</sub> flakes and ferromagnetic VSe<sub>2</sub> flakes, and then stacked NbSe<sub>2</sub>-VSe<sub>2</sub> heterostructures by a two-step chemical vapor deposition (CVD) method. On step one, large and smooth NbSe<sub>2</sub> flakes were obtained on sapphire substrate. On the second step, we achieve heteroepitaxy growth of VSe<sub>2</sub> on the NbSe<sub>2</sub> surface. This work broadens the field of TMDs based van der Waals heterostructures and provides a potential platform for exploring topological superconductivity.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138603"},"PeriodicalIF":2.7000,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X25006329","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Two-dimensional (2D) superconductor-ferromagnet van der Waals heterostructures have recently arisen wide research interests in low dimensional devices on spintronics and quantum computation. However, the synthesis of atomically thin heterostructures is quite challenging. In this paper, we have successfully synthesized superconducting NbSe2 flakes and ferromagnetic VSe2 flakes, and then stacked NbSe2-VSe2 heterostructures by a two-step chemical vapor deposition (CVD) method. On step one, large and smooth NbSe2 flakes were obtained on sapphire substrate. On the second step, we achieve heteroepitaxy growth of VSe2 on the NbSe2 surface. This work broadens the field of TMDs based van der Waals heterostructures and provides a potential platform for exploring topological superconductivity.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive