Uniaxial relaxor ferroelectrics: The ferroic random-field Ising model materialized at last
作者： W Kleemann , J Dec , P Lehnen , R Blinc , B Zalar
DOI: 10.1209/EPL/I2002-00534-Y
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摘要: Owing to their intrinsic charge disorder ferroelectric crystals of strontium-barium-niobate doped with Ce3+ materialize the three-dimensional ferroic random-field Ising model (RFIM) as evidenced by order paramenter and susceptibility criticalities 93Nb NMR dielectric spectroscopy, respectively. Upon cooling towards Tc, extreme critical slowing-down due activated dynamic scaling gives rise relaxor-like dispersion a metastable nanodomain state fractal size distribution imaged piezoelectric force microscopy.
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