Sr_1-xCa_xTiO_3: An XY Quantum Ferroelectric with Transition to Randomness

@article{citeulike:764867, abstract = {A series of twenty homogeneous Sr 1- x Ca x TiO 3 mixed crystals has been measured dielectrically between 4.2 and 300 K. In the tetragonal phase; the dielectric constant perpendicular to the c axis becomes peaked above x c =0.0018; the quantum mechanical onset for displacive ferroelectricity. The polarization \^{a}¥ c can be switched between the two equivalent a axes; i.e.; the system is an XY ; n =2; quantum ferroelectric. Above x r =0.016\^{A}±0.002; the \^{I}µ( T ) peaks round in a distinct manner which we attribute to the onset of a random-field-induced domain state.}, author = {Bednorz, J. G. and Muller, K. A.}, citeulike-article-id = {764867}, doi = {10.1103/PhysRevLett.52.2289}, journal = {Physical Review Letters}, keywords = {dielectric, ferroelectric, sto}, month = {June}, number = {25}, pages = {2289+}, posted-at = {2006-07-19 15:53:14}, priority = {2}, publisher = {American Physical Society}, title = {Sr\_1-xCa\_xTiO\_3: An XY Quantum Ferroelectric with Transition to Randomness}, url = {http://dx.doi.org/10.1103/PhysRevLett.52.2289}, volume = {52}, year = {1984} }

TY - JOUR ID - citeulike:764867 L3 - citeulike-article-id:764867 N2 - A series of twenty homogeneous Sr 1- x Ca x TiO 3 mixed crystals has been measured dielectrically between 4.2 and 300 K. In the tetragonal phase; the dielectric constant perpendicular to the c axis becomes peaked above x c =0.0018; the quantum mechanical onset for displacive ferroelectricity. The polarization ⥠c can be switched between the two equivalent a axes; i.e.; the system is an XY ; n =2; quantum ferroelectric. Above x r =0.016±0.002; the ε( T ) peaks round in a distinct manner which we attribute to the onset of a random-field-induced domain state. IS - 25 JF - Physical Review Letters TI - Sr_1-xCa_xTiO_3: An XY Quantum Ferroelectric with Transition to Randomness PB - American Physical Society VL - 52 SP - 2289 KW - dielectric KW - ferroelectric KW - sto AU - Bednorz, JG AU - Muller, KA PY - 1984/06/18/ UR - http://dx.doi.org/10.1103/PhysRevLett.52.2289 ER -