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Abstract accepted
Links to materials related to this event: 1. Abstract and full article for the presentation made:  96th ISC 2009 NEHU
2. Scanned fascimile of paper in cmdays2004-special issue of IJP:  IJP_Vol79_Sept2005_p985.pdf
3. Events listed under EVENT-VII at the URL:


To cmdays2011 CMDAYS11 Gauhati, Sankarampadi ARAVAMUDHAN, S ARAVAMUDHAN From: S ARAVAMUDHAN
Sent: 23 June 2011 11:21AM
To: cmdays2011 CMDAYS11Gauhati
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Download Abstract_cmdays11_SA.pdf(33.9 KB)
To Convener-CMDAYS2011
Dr. Deepali Sarkar
I have earlier by an email messsage conveyed my Registration Particulars for participation in CMDAYS11: and that I would be submitting my abstract. Thanks for the reply on receiving the Registration Fee.
And, hereby I send the Abstract for consideration. Find attached Abstract_cmdays11_SA.pdf


When A Magnetic Moment Is Subdivided, Do The Fragmented Moments Interact Among Themselves?

S. Aravamudhan

It has been possible to improve the validity of point dipole approximation by appropriately subdividing the magnetic moment of a magnetized material to calculate the induced fields within the material and calculate the demagnetization factors by a convenient summation procedure (1). Subdividing has to be in such a way that the vectorial addition of the fragmented moments yields the total magnetic moment value to account for the entire extent of the material content. This is followed by distributing the subdivided moments over the entire sample. In such a case will there be an interaction among the fragments? This would entail accounting for induced fields at every fragment due to the all the other fragments; and, also the corresponding interaction energy. One way to explain this process is to uphold that the subdivision is only hypothetical, and the boundaries between fragments are not real but only a mathematical convenience. On the other hand, the demagnetization factor by a summation procedure is possible only by this subdivision necessarily and the demagnetization factors obtained have physical significance. Hence it seems it has more basis to be inquiring whether a subdivision of this kind (which results in a physical quantity much closer to true value) must be so occurring that the interaction of a fragmented and distributed moment with all the other fragments must cancel out. A procedure to calculate such induced field values at a fragment would be reported and discussed for the above perspective.

References: 1. Proceedings of the 96th Indian Science Congress, 2009;

Date: Wed, 22 Jun 2011 07:57:46 +0530
Subject: Re:,
Thanks for the registration fee. But the abstract deadline is over. However, you may send it by tomorrow.
Deepali Sarkar

Convener CMDAYS2011, Gauhati

Dear Dr. Deepali Sarkar,
Find my Registration particulars of CMDAYS2011 at this link I have paid the Registration FEE of Rs.500/- as per the attached particulars. I shall be submitting the Abstract during the next week. Thanks.

Transaction Details

Reference No.IT24755945
Debit Account Number: 00000010613644639
Remarks: CMDAYS11 RegnFee SA
Transaction Date: 21-Jun-2011
Amount: INR 500.00
Status: Success
Reason: Completed Successfully
Receipt received at CMDAYS2011 venue Registration desk

RECEIPT for the Registration Fee