Abstract
Garnet compositions have been developed which utilize stress-induced uniaxial anisotropy to attain stable magnetic bubble domains. The compositions were designed to be useful as epitaxial films on single crystal Gd 3Ga 5O 12 or Sm 3Ga 5O 12 substrates and were tested as annealed (> 1200°C) bulk crystal platelets which were mechanically stressed by being bonded to glass substrates with thermal setting epoxy resins at ∼ 200°C. These annealed platelets exhibited cubic domains prior to mechanical stressing and were free of any growth anisotropy. Properties of (Sm,Dy,Y) 3(Fe,Ga) 5O 12 and (Gd,Y,Yb) 3(Fe,Ga) 5O 12 garnets relevant to bubble domains are discussed.
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