{"title":"石墨烯/六方氮化硼中 Y 结的室温电流调制","authors":"M. Dragoman, A. Dinescu, D. Dragoman","doi":"10.1016/j.physe.2024.116011","DOIUrl":null,"url":null,"abstract":"<div><p>The current flow through an Y junction in graphene/hexagonal boron nitride (hBN) has been investigated at room temperature. The study has revealed that an electric field normal to the current flow can induce significant dissimilarities in the two drain currents outgoing from the Y branches, allowing the implementation of an electron beam splitter with variable ratio. An unexpected hysteretic effect due to fabrication processes was also observed. The Y junctions have been fabricated at wafer scale.</p></div>","PeriodicalId":20181,"journal":{"name":"Physica E-low-dimensional Systems & Nanostructures","volume":"162 ","pages":"Article 116011"},"PeriodicalIF":2.9000,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Room-temperature current modulation by an Y junction in graphene/hexagonal boron nitride\",\"authors\":\"M. Dragoman, A. Dinescu, D. Dragoman\",\"doi\":\"10.1016/j.physe.2024.116011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The current flow through an Y junction in graphene/hexagonal boron nitride (hBN) has been investigated at room temperature. The study has revealed that an electric field normal to the current flow can induce significant dissimilarities in the two drain currents outgoing from the Y branches, allowing the implementation of an electron beam splitter with variable ratio. An unexpected hysteretic effect due to fabrication processes was also observed. The Y junctions have been fabricated at wafer scale.</p></div>\",\"PeriodicalId\":20181,\"journal\":{\"name\":\"Physica E-low-dimensional Systems & Nanostructures\",\"volume\":\"162 \",\"pages\":\"Article 116011\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2024-05-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physica E-low-dimensional Systems & Nanostructures\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1386947724001152\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"NANOSCIENCE & NANOTECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physica E-low-dimensional Systems & Nanostructures","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1386947724001152","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"NANOSCIENCE & NANOTECHNOLOGY","Score":null,"Total":0}
引用次数: 0
摘要
我们在室温下研究了流经石墨烯/六方氮化硼（hBN）Y 结的电流。研究结果表明，与电流流向相同的电场可导致从 Y 形分支流出的两个漏极电流出现显著差异，从而实现可变比率的电子束分流器。此外，还观察到由于制造工艺而产生的意想不到的滞后效应。Y 结是在晶圆规模上制造的。
Room-temperature current modulation by an Y junction in graphene/hexagonal boron nitride
The current flow through an Y junction in graphene/hexagonal boron nitride (hBN) has been investigated at room temperature. The study has revealed that an electric field normal to the current flow can induce significant dissimilarities in the two drain currents outgoing from the Y branches, allowing the implementation of an electron beam splitter with variable ratio. An unexpected hysteretic effect due to fabrication processes was also observed. The Y junctions have been fabricated at wafer scale.
期刊介绍：
Physica E: Low-dimensional systems and nanostructures contains papers and invited review articles on the fundamental and applied aspects of physics in low-dimensional electron systems, in semiconductor heterostructures, oxide interfaces, quantum wells and superlattices, quantum wires and dots, novel quantum states of matter such as topological insulators, and Weyl semimetals.
Both theoretical and experimental contributions are invited. Topics suitable for publication in this journal include spin related phenomena, optical and transport properties, many-body effects, integer and fractional quantum Hall effects, quantum spin Hall effect, single electron effects and devices, Majorana fermions, and other novel phenomena.
Keywords:
• topological insulators/superconductors, majorana fermions, Wyel semimetals;
• quantum and neuromorphic computing/quantum information physics and devices based on low dimensional systems;
• layered superconductivity, low dimensional systems with superconducting proximity effect;
• 2D materials such as transition metal dichalcogenides;
• oxide heterostructures including ZnO, SrTiO3 etc;
• carbon nanostructures (graphene, carbon nanotubes, diamond NV center, etc.)
• quantum wells and superlattices;
• quantum Hall effect, quantum spin Hall effect, quantum anomalous Hall effect;
• optical- and phonons-related phenomena;
• magnetic-semiconductor structures;
• charge/spin-, magnon-, skyrmion-, Cooper pair- and majorana fermion- transport and tunneling;
• ultra-fast nonlinear optical phenomena;
• novel devices and applications (such as high performance sensor, solar cell, etc);
• novel growth and fabrication techniques for nanostructures
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