Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | SpringerLink |
---|---|
Author | Agrawal, Bal K. Agrawal, S. |
Copyright Year | 2013 |
Abstract | For the first time, we show a monitoring of magnetism which can be done in the nano-sized (5–15 Å) graphene nanodisks (GNDs), i.e., zigzag-edged triangular GNDs (ZET-GNDs) passivated/terminated by making mixtures of the passivating/terminating complexes. The example chosen here is a ZET-GND passivated/terminated by various mixtures of the H, 2H, and the hydroxyl OH groups. A first-principles method is used to investigate the magnetic properties which possess large magnetic moments. For 2H-passivation of ZET-GNDs, one achieves total spin values which are just double of those obtained for the mono H-passivated ones. The magnetic behavior of the ZET-GNDs passivated by OH is very much similar to that of the H-passivated ones in achieving large magnetic moments. The spin value scales with the linear dimension of the ZET-GNF which results from the topological frustration of the π bonds and the induced spin distributions in graphene structures. The maximum energy gap approaches to an asymptotic value of about 0.4 eV which may result into the occurrence of large magnetic moments in the passivated/terminated ZET-GNDs beyond the nanoscale at room temperature. The sp $_{3}$-hybridization found at the outmost C atoms in a ZET-GND caused by termination by suitable complexes like 2H kills the π-p orbital at these C atoms and alters drastically the total magnetic moments. The graphene fragments may thus be excellent candidates for the development of several types of the spintronic devices. |
Starting Page | 1 |
Ending Page | 12 |
Page Count | 12 |
File Format | |
ISSN | 13880764 |
Journal | Journal of Nanoparticle Research |
Volume Number | 15 |
Issue Number | 10 |
e-ISSN | 1572896X |
Language | English |
Publisher | Springer Netherlands |
Publisher Date | 2013-09-29 |
Publisher Place | Dordrecht |
Access Restriction | Subscribed |
Subject Keyword | Spintronics Triangular nano disks Functionalization High magnetisation Graphene nanodisks Nanotechnology Inorganic Chemistry Characterization and Evaluation of Materials Physical Chemistry Optics, Optoelectronics, Plasmonics and Optical Devices |
Content Type | Text |
Resource Type | Article |
Subject | Bioengineering Atomic and Molecular Physics, and Optics Nanoscience and Nanotechnology Condensed Matter Physics Modeling and Simulation Chemistry |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Libarray of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
Loading...
|