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People

Marin Alexe

Marin Alexe, Group Head

Wendong

Wen Dong, PDRA 2017 - Present

I am working on ferrotoridic structure: polar flux-closure, vortices and skymions. The ferrotoridic structure is a recently discovered new form of ferroic order in addition to ferroelectric, ferromagnetic, and ferroelastic ones. This research will enable us to have a more comprehensive understanding on the fundamental principle underlying this new structure. The inherent magnetoelectric coupling within this new structure is technologically interesting. I obtained my master’s degree from Shanghai Jiao Tong University (SJTU). In SJTU, I focused on photovoltaic properties of multiferroelectric materials. I completed my PhD research from Functional Materials Group (Prof. Ray Withers and Prof. Yun Liu) in Australian National University (ANU). In ANU, I worked on polar functional materials that are potentially very useful for the “smart” devices

Please find my research outcomes in the link: https://scholar.google.com/citations?user=lFyHR4MAAAAJ&hl=en.

Yooun Heo

Yooun Heo, PDRA 2019 - Present

My research interests span complex oxide thin films for their structure-related properties and functionalities. My research at Warwick will focus on exploring ferroelectric domain walls and spintronics for potential applications in nanoelectronics. I obtained a Ph.D. at UNSW Sydney, focusing on characterizations of nanoscale ferroelectrics by scanning probe microscopy. Recently, I completed two-year postdoctoral research fellowship, supported by Japan Society for the Promotion of Science (JSPS), with my main research focus on epitaxial growth of oxide thin films by pulsed laser deposition and characterization of transport and magnetization properties.

Daniela Dogaru, PhD 2017 - Present

My work focuses on investigating the electronic and magnetic structure of perovskite oxide thin films such as SrRuO3 or La1-xSrxMnO3 through charge transport experiments. In more practical terms, I grow thin films using the Pulsed Laser Deposition technique and build devices by photolithography that allow the analysis of their electro-magnetic properties; devices that are often based also on ferroelectrics such as BiFeO3 or PbTiO3. My PhD project thus explores new functionalities of oxide perovskite compounds such as interface-induced phenomena or formation of topological entities such as skyrmions.

Hangbo Zhang

Hangbo Zhang, PhD 2018 - Present

My PhD project mainly focuses on the photovoltaic effect on asymmetric materials. I am currently working on the circular photovoltaic in BFO thin film, wherein the spin-orbit effect plays a crucial role.
I am quite interested in the thermodynamic calculation, simulation and modelling with Mathematica, MATLAB and COMSOL.
You can find more information about my research on this website: https://www.researchgate.net/profile/Hangbo_Zhang

Affan Iqbal

Affan Iqbal, Masters student 2018 - 2019

Hi, I’m Affan! I recently completed a Masters degree as part of the group and have since stayed on to continue work stemming from my Master’s research. During the last 18 months, I have studied on nonlinear optical effects with investigations focussed on ferroelectric materials. My experimental approach has included scanning probe microscopy and laser spectroscopy approaches along with x-ray structural characterisations.
Specifically, my focus has been to establish a better understanding of the impact of local strain and associated strain gradients on the charge dynamics in the strained BiFeO3 system. I am deeply interested in structure-property relationships in perovskite semiconductors in general and aim to build on this interest during my PhD.

Mingmin Yang

Mingmin Yang, PDRA 2018 - Present

Zhengdong Luo

Zhengdong Luo, PDRA 2019 - Present

My current research project involves the fabrication and characterization of 2D layered materials integrated on ferroelectric thin film substrates. This research aims to explore the effect of ferroelectric polarization on optical, magnetic and electronic properties of those emerging 2D layered materials.

Alan

Alan Brunier, PhD 2015 - 2019

The topic of my PhD project is characterisation of domain walls and switching processes in ferroelectric and multiferroic systems, notably BiFeO3, Pb(Zr,Ti)O3 and BaTiO3 epitaxial thin films.
My research interests include
i) Domain wall motion.
ii) Characterisation of ferroelectric domain walls.
iii) Ferroelectric switching in capacitor devices.
iv) Strain engineering and characterisation of novel domain wall architectures.
I have extensive experience of PLD, AFM (PFM, through-electrode PFM, C-AFM), XRD, SEM, transport and magnetotransport measurements, and device fabrication. I enjoy working with collaborators using time resolved synchrotron XRD, dielectric spectroscopy, SHG, XPS and TEM to further understand the systems I study.

Dorin Rusu

Dorin Rusu, PhD 2017 - Present

Sam Seddon

Sam Seddon, PhD 2018 - Present

I'm an EPSRC funded student working on the Domain Wall project. My day to day experimentation uses the Attocube Low Temperature AFM System, using MFM and PFM with the in-situ fields to investigate carrier/switching dynamics in BiFeO3, SrRuO3 and Fe3O4 as well as working in conjunction with the magnetism group at Warwick, using MFM to provide real space maps of Skyrmions in various materials.

Michael Crosbie, Group Technician