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3
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0answers
19 views

How to visualize or think about spin waves (magnons)?

According to Wikipedia: "A magnon is a quasiparticle, a collective excitation of the electrons' spin structure in a crystal lattice." I have little pictures in my mind for other quasiparticles. For ...
0
votes
1answer
15 views

Can covalently bonded hydrocarbons be influenced by a magnetic field?

I am doing a University project on Magnetically Assisted Combustion and am curious to know more about how magnetic fields may or may not affect gases such as butane and propane. I think I am right ...
7
votes
1answer
114 views

Predicting orbital angular momentum effects on magnetic moments

For metal complexes with $A_{2}$ or $E$ ground state terms there is angular momentum contribution to the magnetic moment which is generally positive for more than half-filled subshells and negative ...
1
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0answers
33 views

Orbitals involved in Ni(CO)₄

Which orbitals are filled? Is it diamagnetic? According to CFT, $\ce{CO}$ is a strong field ligand, so will it pair the electrons and be diamagnetic?
3
votes
1answer
1k views

What happens if you make a gas of magnetic particles [closed]

I was reading todays SMBC which asked what happens if you make a gas of magnetic particles So what does happen if you make a gas of magnetic particles?
5
votes
1answer
537 views

Are there any magnetic particles that are safe to inhale?

In medicine, there is an (old?) experiment where a subject is asked to inhale radioactive Xenon gas, and radiation counters are placed at different positions near the lungs. Using this experiment, it ...
4
votes
1answer
75 views

Magnetic stirrer with hot plate

I did not know there are products such as a magnetic stirrer with a hot plate, enabling one to apply heat and stirring to a solution with relative ease. Did I understand correctly, that device needs a ...
0
votes
0answers
36 views

Which is more ferromagnetic: grey iron or mild steel?

Which of these two metals is more ferromagnetic: grey iron or mild steel? I understand that grey iron has more graphite which is paramagnetic, and mild steel contains carbon. How does the ...
1
vote
1answer
131 views

Magnetic moments of tetrahedral Cobalt (II) and (III) complexes

From the spin-only formula we can predict that for tetrahedral cobalt (II) complexes $$m_{eff} = 3.87 \mu_B $$ This ignores orbital angular momentum effects, which result in higher magnetic moments ...
1
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0answers
21 views

magnetism in metallic alloys

i am working with a multicomponent alloy system for soft magnetic application,it is iron based and have composition of Fe Mn Si B Mo,how can i calculate the net magnetic moment or saturation ...
0
votes
1answer
106 views

Why are paramagnetic materials attracted to ferrimagnetic materials(such as iron, nickel, and cobalt)?

Diamagnetism exists in every molecule or ionic compound. It is the ability to be repelled by a magnetic field. So you might think from this, that liquid oxygen would either be repelled by the magnet ...
1
vote
1answer
1k views

Why is B2 paramagnetic?

Why is B2 paramagnetic? It's just 2 borons with a triple bond between them. Aren't all the electrons paired?
1
vote
1answer
130 views

Is NaCl para magnetic?

My teacher told yes that salt is para magnetic and it is attracted by magnet slightly. But when I tried that at home it did not work. Help me out..
2
votes
1answer
142 views

chemically inert molecule with piezoelectric properties

For a research project, I'm looking into existing chemical molecules that have the following properties: It is mostly chemically inert, safe for animals and children It exhibits piezoelectricity - ...
6
votes
1answer
2k views

Total magnetic moment of atom

Whenever I read about coordination compounds in my textbooks, I always find a discussion about spin-only magnetic moment which is given by $\sqrt{n(n+2)}$ BM, Where $n$ is the number of unpaired ...
5
votes
1answer
415 views

How is the magnetic property of an element affected when the element is part of a compound?

Data on this site conveys that Neodymium is paramagnetic. Yet the Neodymium magnets out there make extremely strong magnets. I'm guessing these are not pure neodymium magnets but some kind of ...
22
votes
2answers
346 views

What is antisymmetric exchange? What is J-strain? Where does it come from?

I'm reading a paper1 by Sanakis, et al. that characterises the magnetic coupling in the $\ce{Fe3S4}$ clusters present in bacterial ferredoxin II and beef heart aconitase as arising through something ...
5
votes
2answers
554 views

What is it about the relationship between the Fe²⁺ and Fe³⁺ in magnetite that makes it diamagnetic?

Hematite is composed of $\ce{Fe2O3}$, and is paramagnetic, whereas magnetite is $\ce{Fe3O4}$ and is diamagnetic. Magnetite's nature is due to the presence of both $\ce{Fe^{2+}}$ and $\ce{Fe^{3+}}$ ...