Magnetic field on metals 3

[JairoM]

Do you attribute the magnetic capacity of materials only due to its phase (unit cell / microstructure) or the electron spin, momentum etc...? How those factors interact ?Please explain ...

 

[MagMike]

Is this a homework question?

 

[arunmrao]

No please.He is a new member,and I have advised him to look for your valued replies and those of other members too.

Thanks

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"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year

 

[MagMike]

It's extremely difficult to describe how magnetism works at the atomic level in a text based forum like this. In addition, it's a physics question, not engineering, which is why I asked if it was homework.

There are a number of mechanisms at the atomic level that produce magnetism. I'd recommend tracking down some of the books in the FAQ I created: faq340-1436

The one by Jiles is particularly good regarding this question, although the books by McCurrie, O'Handley and Cullity have nice explanations too.

 

[hacksaw]

fundamentally a quantum physics explanation starting with electron spin, the energy levels of the electron, the interaction between the eletrons, and the intereaction of the electron spin with the applied fields...just start reading

 

[hacksaw]

by the way what level maths do you feel comfortable with?

 

[JairoM]

To be honest I'm not interested on maths at this stage. My main purpose is by experts, to know the interaction and the significance among the factors which lead to the magnetic achievements.'We know the phase transformation can lead to the magnetic change state, for instance material austenitic (FCC) with high Mn content (12-14%) when deformed plastically transforms to martensite (tetragonal compact), and a result it restablish its previous magnetic condition. This material is know by Hadfield Steels. Any of you have done experiments (design of experiments DOE) which correlates the electron spin, momentum, material original magnetic condition, and unit cell, in order to determine the significance and interaction among those characteristics to understand the phenomena as a whole ? Or in your opinion this apparent complex question, under my point of view, is totally explained in a wider way by the spin of electron ?
I'm gonna read the papers and books suggested, in order to start a more robust reading, even so I'd like to have a brief explanation, if possible about this phenomena.

 

[arunmrao]

Thanks magmike and hacksaw,stars for you both. If you could provide a bird's eye view,minus the maths,briefly,it would be great.

I have done Cullity,Azaroff and some advanced courses in Material Science, (from the Physics Department)where we were taught the complex effects,but unfortunately I can't recall.

_____________________________________
"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year

 

[hacksaw]

your query involves traditional magnetics covered in the older texts >50 years old, but seeking a link to the modern theory <10 years old. It is simply not possible unless you are starting out and well above average in maths, going to one of the top schools, and well funded...Some of the best schools will require learning a second language just to gain entry. Less and less of the good work is done in english