B
Brian J. Rodriguez
Researcher at University College Dublin
Publications - 251
Citations - 9953
Brian J. Rodriguez is an academic researcher from University College Dublin. The author has contributed to research in topics: Piezoresponse force microscopy & Ferroelectricity. The author has an hindex of 53, co-authored 236 publications receiving 8711 citations. Previous affiliations of Brian J. Rodriguez include National University of Ireland & Max Planck Society.
Papers
More filters
Journal ArticleDOI
Dual-frequency resonance-tracking atomic force microscopy
TL;DR: In this article, a dual-excitation method for resonant-frequency tracking in scanning probe microscopy based on amplitude detection is developed, which allows the cantilever to be operated at or near resonance for techniques where standard phase locked loops are not possible.
Journal ArticleDOI
The band excitation method in scanning probe microscopy for rapid mapping of energy dissipation on the nanoscale
TL;DR: In this article, the authors developed a band excitation (BE) SPM, which allows very rapid acquisition of the full frequency response at each point (i.e. transfer function) in an image and in particular enables the direct measurement of energy dissipation through the determination of the Q-factor of the cantilever-sample system.
Journal ArticleDOI
Local polarization dynamics in ferroelectric materials
TL;DR: In this article, the authors summarize the recent progress in applications of piezoresponse force microscopy (PFM) for imaging, manipulation and spectroscopy of ferroelectric switching processes.
Journal ArticleDOI
Direct imaging of the spatial and energy distribution of nucleation centres in ferroelectric materials.
Stephen Jesse,Brian J. Rodriguez,Somnath Choudhury,Arthur P. Baddorf,Ionela Vrejoiu,Dietrich Hesse,Marin Alexe,Eugene A. Eliseev,Anna N. Morozovska,J. X. Zhang,Long Qing Chen,Sergei V. Kalinin +11 more
TL;DR: An approach is developed to visualize the nucleation centres controlling polarization switching processes with nanometre resolution, determine their spatial and energy distribution and correlate them to local microstructure, using random-bond and random-field components of the disorder potential.
Journal ArticleDOI
Vector piezoresponse force microscopy
Sergei V. Kalinin,Brian J. Rodriguez,Stephen Jesse,Junsoo Shin,Arthur P. Baddorf,Pradyumna Gupta,Himanshu Jain,David B. Williams,Alexei Gruverman +8 more
TL;DR: A novel approach for nanoscale imaging and characterization of the orientation dependence of electromechanical properties—vector piezoresponse force microscopy (Vector PFM)—is described and the potential of vector PFM for molecular orientation imaging in macroscopically disordered piezoelectric polymers and biological systems is discussed.