Although these are not minimum energy configurations, due to a phenomenon where the domain walls become "pinned" to defects in the crystal lattice they can be local minimums of the energy, and therefore can be very stable.
Kuigi need ei ole miinimumenergia konfiguratsioonid, fenomeni tõttu, kus domeeni seinad on kinnitatud kristallvõre defektide külge, saavad nad olla lokaalsed energiamiinimumi punktid ja seetõttu väga stabiilsed.