Re: diamagnetism and thermodynamic stability
- From: rge11x <rge11x@xxxxxxxxxxxx>
- Date: Mon, 19 Mar 2007 04:53:34 +0000 (UTC)
On Mar 17, 8:29 pm, Uncle Al <Uncle...@xxxxxxxxxxxxx> wrote:
[ Mod. note: 40+ quoted line snipped. Please quote reasonably. -ik ]
We can easily make solids with random unpaired electron spins
(paramagnets; transition, lanthanide, actinide metal salts, organic
stable free radicals), aligned unpaired electron spins (ferromagnets;
94% of Alnico 5 magnetic field), and aligned electron orbital angular
momenta (37% of Sm2Co17 magnetic field). The few transparent
ferromagnetic solids have very high refractive indices - but that is
expected. Is there anything special about these guys compared to
Plexiglas?
We can easily make corresponding solids with permanent electric
dipoles - poled ferroelectrics, electrets. Bulk water at 20 C has
epsilon = 80.1, and that is an impressively large number. N-Methyl
formamide, epsilon = 182.4 (308 at -40); N-methyl acetamide, epsilon =
191.3. Bulk KTaNbO3 has epsilon = 34,000 at 0 C. Is there anything
special about these guys compared to benzene at epsilon = 2.28 or
cyclohexane at epsilon = 2.02?
--
Uncle Alhttp://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)http://www.mazepath.com/uncleal/lajos.htm#a2
How lossy are these materials at radio frequencies?
.
- References:
- diamagnetism and thermodynamic stability
- From: beheiger
- Re: diamagnetism and thermodynamic stability
- From: Igor Khavkine
- Re: diamagnetism and thermodynamic stability
- From: Uncle Al
- diamagnetism and thermodynamic stability
- Prev by Date: Re: cold nuclear fusion in palladium
- Next by Date: distorted event horizons and temperature of black holes
- Previous by thread: Re: diamagnetism and thermodynamic stability
- Next by thread: Re: diamagnetism and thermodynamic stability
- Index(es):
Relevant Pages
|
|
