Uploaded by atommodel on Sep 30, 2009
Structure of electron: Electron has a standing- electric field and magnetic field in right angle regardless of any kind of its motions and act as a tiny bar magnet with a negative charge (watch video Structure of electron). In an atom, the electric fields of its electrons will be directed to the nucleus and magnetic fields will be horizontal to the nucleus. (watch video Structure of atom) Arrangement of electrons in a molecular magnet: If the magnetic fields of two or more electrons in the atoms of a molecule are parallel, then that molecule becomes magnetic. Normally, the magnetic fields of electrons in atoms cancel each other and appear an atom cluster as non-magnetic. But in some molecules, because of the some special type of bonding between its atoms, the magnetic fields of two or more electrons in the molecule become parallel and these types of molecules exhibit molecular magnetism. The field strength of a molecular magnet is determined by how many electrons magnetic fields are parallel in the molecule. As the number of parallel magnetic fields is increases, the molecule becomes more magnetic. Making of a molecule with the atoms in the molecule in such a way that its more magnetic fields are in parallel, we can create super magnetic molecules. Impact of the discovery and applications: One of the most pressing technology needs today is to find more efficient ways to store and process digital information. By understanding the real fact behind molecular magnetism, we can manipulate atoms in molecules and create magnetic molecules for our specified requirements. Some important facts about atomic structure: Electrons in a non-excited atom are motionless. Space inside of atom is not empty, but filled with space matter. There are three factors that determine the electron configuration in a multi-electron atom.They are a) attraction from the nucleus, b) repulsion between electrons (repulsion between electrons in a shell and between electrons in the inner and outer shells). c) buoyant force exerted by space matter. An atom has two types of shells; 1) Electron shells: - Regions where the electrons are configured in an atom, when the atom in non-excited state. 2) Transitory shells: - Possible regions, which the electrons can jump from their electron shells, when they are in an excited state. (watch video structure of atom) Magnetic field will be created in the following circumstances: A charged particle (positive/negative) has magnetic property and act as a small magnet. When charged particles are aligned in a single way in a material, a magnetic field will be created around that material. For example, when electrons are flowing through a conductor, all electrons will be aligned in a single way. This alignment of flowing electrons creates a collective magnetic field around that conductor. Flowing electrons cause to align them, otherwise, there is NO any direct connections between motion of electrons and creation of magnetic field as current belief. In the case of an iron core inside a solenoid, the influence of the magnetic field that created by the flowing electrons in the conductor, the outer electrons of the atoms in the core will be aligned in a single way and causes to create a magnetic field around the core. Visit: http://www.physics-edu.org
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National Physical Laboratory UK - http://www.npl.co.uk/
Royal Society of Chemistry - Dalton Transactions -- http://www.rsc.org/
European Institute of Molecular Magnetism EIMM - http://www.eimm.org/
Department of Chemistry, University of Glasgow -- http://www.chem.gla.ac.uk/
Department of Applied Physics - http://www.stanford.edu/dept/app-physics/
Centre for Quantum Computer Technology -http://www.qcaustralia.org
IBM Research -- http://www.research.ibm.com/
The University of New South Wales
Ohio State University http://www.osu.edu/
Indiana University. - http://www.indiana.edu
National Nanotechnology Initiative - http://www.nano.gov/
www.iop.org/EJ/journal/Nano
Stanford Center for magnetic nanotechnology http://www.stanford.edu/group/nanomag_center/
Stanford Department of Applied Physics --http://www.stanford.edu/dept/app-physics/
Applied Physics at Caltech http://www.aph.caltech.edu/ ()
Materials Science & Engineering Laboratory http://www.nist.gov/msel ()
National High Magnetic Field Laboratory: Center for Integrating Research and Learning -- http://www.magnet.fsu.edu/education/
Dept. of Structural Research - Magnetic Research Lab--
http://www.ifj.edu.pl/dept/no3/nz31/magnetic/magnetic.html
Institute for Quantum Computing -- http://www.iqc.ca/
Laboratory for Molecular Magnetism(University of Florence, in Italy) - http://www.chim1.unifi.it/LAMM/index.html
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- tiny magnets
- data storage
- Molecular magnetism
- magnetic domain
- atom clusters
- quantum computing
- alignment
- permanent magnet
- Cr8
- nano magnet
- super memory
- discs
- magnetic field
- computer memory
- hard disc
- nanotechnology
- spin
- chromium atoms
- chromium-8 (Cr8)
- high speed computing
- single-molecule magnet
- SMM
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nice representation
subramaniyabala1 1 week ago
but what is magnetism, the mystery has just moved to the atomic level now. Why is there a magnetic field for an electron?
rccaulfield 4 months ago
the music along with my imagination and the thirst for knowledge make for an interesting comment.
TheMeansardine 1 year ago