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Dr.S.Aravamudhan, North Eastern Hill University, Shillong
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can it ensure a Better Validity of the Point Dipole Approximation? |
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can it ensure a Better Validity of the Point Dipole Approximation? S. ARAVAMUDHAN Department of Chemistry North Eastern Hill University PO NEHU Campus, Shillong 793022, Meghalaya When a homogeneously magnetized material is sub-divided into close-packed volume elements, then, each volume element gives rise to a dipole moment in presence of external field. Summing of the contribution of the induced fields due to these divisional moments calculated at a point within the sample, reproduces the already known values of demagnetization factors. Dividing a given total dipole moment into parts and distributing them to calculate the summed contribution of induced field at a distant point need not always result in the same value. The above alternate method of equivalent distribution of divided parts would be described with certain simple exercises as illustration. Suggested Reference Materials:-http://saravamudhan.tripod.com/ http://nehuacin.tripod.com/ http://www.geocities.com/inboxnehu_sa/conference_events_2005.html http://www.geocities.com/inboxnehu_sa/conference_events_2006.html http://in.geocities.com/saravamudhan2002/events_2007.html EMail:- inboxnehu_sa@yahoo.com Certificate posted on Monday, Jan. 12, 2009 at IIT/M, NPTEL A brief "Chronological Note with Acknowlegement" appears on the Right Hand Column as 'SCROLL TEXT' Java Feature |
CLICK HERE to download the Abstract and Full Article submitted to ISCA for consideration
CLICK HERE to down load the ".pdf" version of the paper published in Indian Journal of Physics,79(9),985-989,2005 by S. Aravamudhan which emphasized the importance of the experimental Multiple Pulse HR PMR studies for the insights available from those results, in relation to Condensed Matter Physics
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Calculated and Standard Demagnetization factor values SHEET-13 CLICK to JUMP to display of Results below |
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"Calculation of Demagnetization Factors" SHEET-08-0810-11-12 |