Field Induced Structural Transition in Mesocrystallites
نویسندگان
چکیده
We have fabricated multiply coated glass spheres with diameters of 45s62d mm that exhibit appreciable magneto-, as well as electrorheological responses. Under crossed electric and magnetic fields, the microspheres were observed to form columnar crystallites with a structure that transforms from body-centered tetragonal to face-centered cubic as the ratio between the magnetic and the electric fields exceeded a minimum value. The observed transition scenario is in excellent agreement with calculations based on the model of field induced crystal formation and structural transition. [S0031-9007(99)09153-X]
منابع مشابه
Multiply coated microspheres. A platform for realizing fields-induced structural transition and photonic bandgap*
Under crossed electric and magnetic fields, multiply coated microspheres form columnar crystallites with an internal structure that transforms from body-centered-tetragonal to face-centered-cubic as the ratio between the magnetic and the electric fields exceeds a minimum value. The observed transition scenario is in excellent agreement with calculations. These multiply coated microspheres also ...
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