{"title":"Investigation of ultrathin β-W nanowires grown in superfluid helium","authors":"R.E. Boltnev , A.V. Karabulin , I.N. Krushinskaya , V.I. Matyushenko , A.A. Pelmenev , I.I. Khodos","doi":"10.1016/j.matlet.2024.137746","DOIUrl":null,"url":null,"abstract":"<div><div>Bundles of nanowires with diameters 2 ÷ 5 nm were obtained by laser ablation of a tungsten target immersed in superfluid helium. The morphology and structure of the nanowires were studied by means of transmission electron microscopy. It was found that the tungsten nanowires were formed in the β-phase. The thermal stability of the β-W nanowires was studied. The electrical resistance of the bundles manifested a very weak dependence on temperature with the range from 5 up to 290 К at helium gas pressure 1 bar.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"380 ","pages":"Article 137746"},"PeriodicalIF":2.7000,"publicationDate":"2024-11-21","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/S0167577X2401886X","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}
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Abstract
Bundles of nanowires with diameters 2 ÷ 5 nm were obtained by laser ablation of a tungsten target immersed in superfluid helium. The morphology and structure of the nanowires were studied by means of transmission electron microscopy. It was found that the tungsten nanowires were formed in the β-phase. The thermal stability of the β-W nanowires was studied. The electrical resistance of the bundles manifested a very weak dependence on temperature with the range from 5 up to 290 К at helium gas pressure 1 bar.
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
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