Pelaiz-Barranco, A. Gutierrez-Arnador, M.P. Huanosta-Tera, A. Valenzuela, R. <br/><br/>
Phase transitions in ferrimagnetic and ferroelectric ceramics by ac measurements. 

 -  1998. 
 - Vol. 73, no. 14, 5 Oct., pp. 2039-2041. 
 = Applied Physics Letters 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bismuth compounds<br/>Ceramics<br/>Curie temperature<br/>Electric impedance<br/>Electrical conductivity<br/>Ferrimagnetic materials<br/>Ferroelectric Curie temperature<br/>Ferroelectric materials<br/>Grain boundaries<br/>Manganese compounds<br/>Strontium compounds<br/>Zinc compounds
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Ferrimagnetic ceramics<br/>Phase transitions<br/>Ferroelectric ceramics<br/>AC conductivity<br/>Polycrystalline samples<br/>Ferrimagnetic spinel<br/>Zn/sub 0.44/Mn/sub 0.56/Fe/sub 2/O/sub 4/<br/>Ferroelectric perovskite<br/>Sr/sub 0.25/Bi/sub 4/Ti/sub 3.25/O/sub 12.75/<br/>Impedance response<br/>Bulk grains<br/>Grain boundaries<br/>Power law<br/>Critical temperature<br/>Curie temperature<br/>Disorder increase<br/>Frequency dependence<br/>Temperature dependence<br/>20 to 660 degC<br/>5 Hz to 13 MHz