# Magnetic Moment Calculation

3650 views
Skip to first unread message

### Rajupeta Nagaraju

unread,
Sep 5, 2012, 2:04:36 PM9/5/12
to phys...@googlegroups.com
Dear All,

I am research scholar and I am working on transition metal (Mn) doped ZnO thin films for spintronics applications.

I need the information about converting saturation magnetization,Ms, (emu/g)  to  μB/ion . I am unable to find this information in journals and books.

Please kindly tell me the procedure to do the conversion, which will more useful to my work.

With Regards,

Nagaraj

### magesh kumar

unread,
Sep 7, 2012, 6:29:19 AM9/7/12
to phys...@googlegroups.com
Hi Raju,

You can convert emu/g to μB/ion as follows:

The unit for Magnetization (M) is emu/g. The relation between Magnetization and Bohr magnetons is

M = n * μB * N * d/A (emu/g)

where,
n = number of unpaired electron spins/atom
μB = Bhor magneton
N = Avagadro's number (6.023*10^23)
d = density
A = atomic weight

So, the magnetization in μB/ion is

μB = (M * A) / (n * N * d)  μB/ion

I hope that it would be helpful for you. All the best.....

Regards,
Mageshkumar

--
Share by clicking http://j.mp/phyinfo

If you want to hide the group messages from your Gmail inbox visit http://bit.ly/bt1TPG

Reply to this email only if your answer is related to this email...
Cross posts will be removed and ban the user from this group..
(Please avoid repeated emails..)
Email , New post to physics43{AT}googlegroups{DOT]com
==#==================#== Please reply to relevant Topic...
About This Email : http://physicskerala.blogspot.com/2000/01/1.html
==#==================#== Edit Your Email Preferences....
Please avoid Copy Righted Materials.

### Harsh Trivedi

unread,
Sep 7, 2012, 3:51:17 AM9/7/12
to phys...@googlegroups.com
Please follow the below steps:

1. Calculate the total no. of ions in 1 gram (Use mole concept or any other suitable approach),m or get an idea as to how much Mn ion is present in 1gm of your film.

2. Than you will be able to calculate moment per ion in emu, (Divide ur saturation Ms emu/gm by the no. of ions per gram you obtained in previous step).

3. Now you get a value of moment per ion site in emu, to convert it to uB use the factor i.e. something uB = something emu (i dont remember but its like 9.97 *10^ -29emu for 1 uB , please refer a modern physics book, its given in Arthur Beieser)

4. Voila, you got your answer......normally uB values are like 1 to 10 for ferromagnet films (even 0.1 for bulk), and around 0.01 for antiferromagnets.

### Sachin Gupta

unread,
Sep 6, 2012, 12:25:54 PM9/6/12
to phys...@googlegroups.com
μB/ion=  {M(emu/g)*Mol. wt.* 1.7904}/10000
..................................................
With Regards:
Sachin Gupta

Senior Research Fellow
Department of Physics
Indian Institute of Technology,Bombay
Powai - 400076, India
Gmail: gsac...@gmail.com
email : sac...@phy.iitb.ac.in

On Wed, Sep 5, 2012 at 11:34 PM, Rajupeta Nagaraju wrote:
--

### gaurav sharma

unread,
Oct 10, 2012, 12:14:34 PM10/10/12
to phys...@googlegroups.com
hi all . i m in search of all  the possible transition level in hydrogenic fe ions atleast upto n=40 ,if any of you know something abt that plz let me know

### Dhruvashi Tiloriya

unread,
Aug 24, 2014, 2:28:53 AM8/24/14
to phys...@googlegroups.com
Hello,
I am also doing the same,I also have a problem in the conversion of magnetisation(emu/cm^3) to uB/ion.

what is the difference between emu/g (which is specific magnetization)
and emu/cm^3 (magnetization). I m confused.

### Jerald Cleetus

unread,
Aug 25, 2014, 12:00:12 PM8/25/14
to phys...@googlegroups.com
Dear All, which device u r using now, MFM or AFM or any other. i think for MFM Agilent Tech has good device. contact me for more details..

On 25 August 2014 10:39, Jerald Cleetus wrote:
Dear All, i think ur problem is gona solved with Confocal Raman Microscopy of WITECH, Germany.

if u want to know about any scientific instruments pls do not hesitate to contact on jerald...@gmail.com

--

--
Share by clicking http://j.mp/phyinfo

If you want to hide the group messages from your Gmail inbox visit http://bit.ly/bt1TPG

Reply to this email only if your answer is related to this email...
Cross posts will be removed and ban the user from this group..
(Please avoid repeated emails..)
Email , New post to physics43{AT}googlegroups{DOT]com
==#==================#== Please reply to relevant Topic...
About This Email : http://physicskerala.blogspot.com/2000/01/1.html
==#==================#== Edit Your Email Preferences....
Please avoid Copy Righted Materials.

---
You received this message because you are subscribed to the Google Groups "PHYSICS INFORMATION    'S'" group.
To unsubscribe from this group and stop receiving emails from it, send an email to physics43+...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--
Jerald Cleetus

M.Sc. Physics, M.Tech Optoelectronics & Optical Communication
Mobile: +91 9946684953

--
Jerald Cleetus

M.Sc. Physics, M.Tech Optoelectronics & Optical Communication
Mobile: +91 9946684953

### sunil mehra

unread,
Aug 26, 2014, 11:02:49 AM8/26/14
to phys...@googlegroups.com
It is symple dear emu is the cgs unit of magnetic moment .
magnetisation=magnetic moment per unit volume and specific
magnetisation = magnetic moment per unit mass.
> --
> --
> Share by clicking http://j.mp/phyinfo
>
> If you want to hide the group messages from your Gmail inbox visit
> http://bit.ly/bt1TPG
>
> Reply to this email only if your answer is related to this email...
> Cross posts will be removed and ban the user from this group..
> (Please avoid repeated emails..)
> Email , New post to physics43{AT}googlegroups{DOT]com
> ==#==================#== Please reply to relevant Topic...
> About This Email : http://physicskerala.blogspot.com/2000/01/1.html
> ==#==================#== Edit Your Email Preferences....
> Please avoid Copy Righted Materials.
>
> ---
> You received this message because you are subscribed to the Google Groups
> "PHYSICS INFORMATION 'S'" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to physics43+...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
>

--
sinu mehra
Reply all
Reply to author
Forward
0 new messages