磁学室学术报告(2016-7)

来源:   发布时间:2016-06-20


题目: Functional properties in Hybrid inorganic-organic perovskites
 

报告人:Alessandro StroppaCNR SPIN InstituteItaly

地点:D 210

时间:15:00-17:00  620 (星期一)

 

报告摘要:

Ferroelectric materials, whose spontaneous polarization can be switched by an external electric field, have a wide range of applications in device electronics. Recent discoveries of ferroelectricity in organic solids have been limited to some well-known polymer ferroelectrics or a few low molecular mass compounds. Computational approaches based on density functional theory represent a valuable tool in order to predict or suggest new organic ferroelectrics with large values of ferroelectric polarization.In particular, the modern theory of polarization is used and symmetry analysis gives an important help for gaining insights into the mechanisms responsible for the ferroelectric polarization. Here we will focus on the description of the ferroelectric and magnetic properties of complex organic-inorganic systems, such as metal-organic frameworks (MOFs). In particular, MOFs with a perovskite topology show promising new routes for the cohexistence of ferroelectricity and magnetism, i.e.multiferroicity.

 

References:

[1] A. Stroppa et al., Angew. Chem. Int. Ed. (2011), 50 , 5847.

[2] A. Stroppa, et al., Adv. Mater. (2013) 25, 2284.

[3] D. Di Sante, A. Stroppa, et al., J. Am. Chem. Soc., (2013), 135, 18126.

[4] A. Stroppa et al., Phys. Status Solidi-RRL, 9, 62-67, (2015).

[5] A. Stroppa et al., Sci. Rep. 4, 6062 (2014).

 

报告人简介:

Alessandro Stroppa (AS) was born in Pescara at (14th July 1976), Italy. He obtained his Master Degree in Physics from University of L’Aquila (Italy) in 2002(Prof. A. Continenza) and PhD from University of Trieste (Italy) in 2006 (Prof. M. Peressi). He moved for a post-doc position at University of Vienna: Computational Materials Science group of Prof. G. Kresse. In 2008 he obtained a post-doc position in the Italian Research Council (CNR) in the group of Dr. Silvia Picozzi. In 2012 he became permanent staff at CNR SPIN Institute (Institute for Superconductivity and Innovative Materials). In 2013 AS received the Italian National Scientific Qualification as associate professor in Theoretical Condensed Matter Physics and he has been appointed as Visiting Research Scholar in the Department of Chemistry in the College of Physical and Mathematical Sciences of North Carolina State University (Prof. M.-H. Whangbo). In 2015 he was honored with Shanghai University High-end Foreign Expert Title and in 2016 as Shanghai Eastern Scholar Chair Professor (Distinguished Visiting Professor) of Shanghai University (Prof. Wei Ren). His main expertise is density functional theory calculations of electronic, magnetic and structural properties of multifunctional materials, ranging from organic to inorganic and hybrid materials. He is author of more the 70 articles, with h-index=22.