Helium-3 Superfluidity: Magnetic Behavior Questions

[armandowww]

does anybody know something about magnetic behaviour of helium-3 superfluid, i.e. under T=2,7mK and beneath its gas pressure?

 

[Reshma]

Found this link, hope it helps.
http://ltl.tkk.fi/research/theory/he3.html

 

[Gokul43201]

does anybody know something about magnetic behaviour of helium-3 superfluid, i.e. under T=2,7mK and beneath its gas pressure?

If I'm not mistaken, the calculations prior to Lee, Richrdson and Osheroff's work in the 70s said that He-3 should be antiferromagnetic below about 2mK. I think in their original paper L, R and O showed that this is not true - but they may have changed this later. There were a few things that weren't so well understood immediately after the original measurement. One of them was the magnetic ordering. I would look into subsequent papers by L, R and O.

Also, recently, Anderson has been doing a few calculations on He-3 and He-4 after Kim & Chan's work. I think he finds that there are both ferromagnetic and antiferromagnetic terms that nearly cancel each otherand result in the weak exchange behavior that was perhaps suggested by L, R and O. I'm very hazy on this, so I suggest you look into the most recent papers by Anderson (last 2 years).

 

[JeroenD]

More info can be found here: http://www.3he-helium.com/
Also a great documentary of the BBC btw.

Good luck!