Electric polarization enhancement in multiferroic CoCr2O4 crystals with Cr-site mixing

Electric polarization of Sr0.5Ba0.5MnO3: A multiferroic Mott insulator

R. Nourafkan,1 G. Kotliar,2 and A.-M. S. Tremblay1,3 1Département de Physique and RQMP, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1 2Department of Physics & Astronomy, Rutgers University, Piscataway, New Jersey 08854-8019, USA 3Canadian Institute for Advanced Research, Toronto, Ontario, Canada (Received 13 September 2014; revised manuscript received 25 November 2014; published ...

Room-temperature ferroelectric polarization in multiferroic BiMnO3

Single-phase multiferroic BiMnO3 ceramic was synthesized via high-pressure and high-temperature solid-state reaction. Microstructure modification accompanied by emergence of superlattice due to electron-beam irradiation was observed wherein by means of electron diffraction (ED) combined with high-resolution transmission electron microscopy (HRTEM). It was clearly evidenced that the well-establi...

Cross-control of magnetization and polarization by electric and magnetic fields with competing multiferroic and weak-ferromagnetic phases.

From our investigation of magnetoelectric properties of a multiferroic phase in Eu0.75Y0.25MnO3 competing with a weak-ferromagnetic phase in magnetic fields, we found intriguing hysteretic behaviors of physical properties with variation of temperature and magnetic field. These hysteretic behaviors arise from the kinetic arrest (dearrest) processes of the first-order multiferroic-weak-ferromagne...

Enhancement of the Magneto-Optical Kerr Effect in One- Dimensional Magnetophotonic Crystals with Adjustable Spatial Configuration

We studied magnetophotonic crystals (MPCs) with introduced magneticdefect layer sandwiched between magnetic and dielectric Bragg mirrors. Thesemagnetophotonic crystals have excellent capabilities to enhance reflection and Kerrrotation simultaneously. By adjusting spatial configuration such as repetition numbersof Bragg mirrors and thickness of magnetic defect layer, we a...

980 ) mixing in polarization phenomena