Research Thrust 1

Magnetoelectric Effects in Perovskite Complex Metal Oxides

Objectives: To explore Complex Metal Oxides (CMO) for the discovery of new physical phenomena and to gain insights into the science of strongly correlated electron materials, especially perovskite ferrites, cobaltites and manganites, via understanding their synthesis-microstructure-property relationships.

Faculty: UTRGV: Karen Martirosyan (lead), Yuanbing Mao, and Mircea Chipara; UMN: Chris Leighton and Bharat Jalan.

$Magnetic hysteresis loop, X-ray diffraction patterns, SEM images$

Fig. 9. (A) Magnetic hysteresis loop of HoMnO₃ at 2K; (B) X-ray diffraction patterns of as-synthesized HoMnO₃ and YMnO₃ powders by CCSO; (C) SEM images of HoMnO₃ particle size ~8nm and ~3 mm, respectively.

TEM of (a) LNMO and (b) LCMO (c) LNMO and (d) LCMO NPs

Fig. 10. TEM of (a) LNMO and (b) LCMO. Temperature dependence of imaginary component χ΄΄ of ac magnetic susceptibility (10 kHz) vs heating/cooling direction and ﬁeld from corresponding (c) LNMO and (d) LCMO NPs.³⁵

The University of Texas Rio Grande Valley

Partnership for Research and Education in Materials Science College of Engineering and Computer Science

Research Thrust 1

Magnetoelectric Effects in Perovskite Complex Metal Oxides