Ferroelastic Domain Switching in YBa2Cu3Ox Single Crystals by External Stress

Abstract
It is found that single-domain crystals of YBa2Cu3O x can be formed from multidomain crystals by making use of ferroelasticity. Ferroelastic domain switching is shown to take place upon application of the external compressive stress of about 1000 kgw/cm2 along a pseudotetragonal [100] axis at sample temperatures of about 200°C to 350°C.