In previous texts you met spins as joyous arrows for dance pleasure. It is time, however, get to know them closer - what are their needs, motives, schemes of behavior? What are they headed for? Only proper understanding of their psyche will allow us to cooperate with them.
Barbara Kędzierska - Wooden spins |
Why is it so bad? Among other things, it is because spins communicate with one another through a magnetic field. Physicists also call it a dipole-dipole interaction ensuring no one else can understand. Unfortunately, this language is very poor and it is not enough for the spins to get along.
Because we are not a correctional facility, we only deal with decent spins, those living for example in iron or nickel*, and there is hope that some of them will grow up. The straight spins stand upright and - as we know - they can dance. They owe this skill to a good educator. This inner tutor in his own language has effectively taught the spins that in order to live in peace and harmony, one should be empathetic, to help and to share things if someone else needs it. Hence, physicists call this tutor exchange interaction.
Exchange interaction constantly keeps spins from forgetting about good manners and it strives to make their inner selfishness does not interfere. The problem occurs when the area of residence is limited. Spins are exposed to external contacts, which can be especially dangerous if there is some plastic in the area. The material boundaries reduce the morale of the spins and cause them to cease to support each other through dipole-dipole interaction. Even help of exchange interaction may be insufficient. There are two ways to deal with this problem, both commonly used at the same time. First of all, if spins are set parallel to the border, they do not see well what is outside, so the threat is minimized. The other way is to divide the material into domains between which the spins are set in different directions. Since each domain represents other interests, spins watch over their neighbors abroad so that they do not lead up the garden path. This requires a bit of guidance from educators due to the need to introduce appropriate boundary conditions. However, we see clear signs of the emergence of civil society and the development of international co-operation through simple dipole-dipole interactions.
There are also more detailed rules governing the social life of spins. We can determine them by modifying the environment in which they live and their surroundings. This sometimes causes the formation of interesting spin structures such as skyrmions or vortexes. To see how spins dance in such a position, it would be interesting, wouldn't it?
How spins dance in the skyrmion you can read HERE
*Frankly speaking, even in these materials, decent spins are the elite, but always something.