K. Tsuda's page

Kenji Tsuda Ph.D., Professor
Frontier Research Institute for Interdisciplinary Sciences, Tohoku University
Research map: https://researchmap.jp/read0168128/

• Research paper: Kenji Tsuda and Michiyoshi Tanaka, "Nanometer-scale local structural study of the paraelectric cubic phase of KNbO₃ by convergent-beam electron diffraction", Jpn. J. Appl. Phys. 56, 10PB09-1-4 (2017).
• Research paper: Kenji Tsuda and Michiyoshi Tanaka, "Direct observation of the symmetry breaking of the nanometer-scale local structure in the paraelectric cubic phase of BaTiO₃ using convergent-beam electron diffraction", Appl. Phys. Express 9, 071501 (2016).
• Moved to Frontier Research Institute for Interdisciplinary Sciences, Tohoku University.
• Research paper: Kenji Tsuda and Michiyoshi Tanaka, "Two-dimensional mapping of local structural fluctuationsin the orthorhombic phase of KNbO₃ by the combined use of the scanning transmission electron microscopy and convergent-beam electron diffraction", Appl. Phys. Express 8, 081501 (2015).

Research Interests

• Development of a method to refine crystal structural parameters and electrostatic potential using Convergent-Beam Electron Diffraction (CBED)
• Nano-scale local electrostatic potential analysis of ferroelectrics and multiferroics
• Electrostatic potential analysis of charge-/orbital-ordering materials
• Local structural study of phase transformation materials

Education / Employment

• Apr. 2016 - present: Professor, Frontier Research Institute for Interdisciplinary Sciences, Tohoku University.
• Apr. - Jul. 2004: Visiting researcher at Triebenberg lab, TU Dresden, Germany
• Nov. 2001 - Mar. 2016: Associate professor, Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University.
• Apr. 2001 - Oct. 2001: Research associate, IMRAM, Tohoku University.
• Apr. 1992 - Mar. 2001: Research associate, Research Institute for Scientific Measurements (RISM), Tohoku University.
• Apr. 1991 - Mar. 1992: JSPS Fellowships for Japanese Junior Scientists.
• Nov. 1991: Ph. D., Physics, Tohoku University.
• Mar. 1989: M.C., Physics, Tohoku University.
• Mar. 1987: B.S., Physics, Tohoku University.

Awards

• Research Award of the Crystallographic Society of Japan (2010)
• Award of the Society of promotion of Scientific measurements (2009)
• Seto Award, The Japanese Society of Microscopy (2004)
• Harada Research Award (1993)
• Reserch Award of Inoue Foundation for Science (1992)

Publications

Publication list

Invited talks and lectures

• Kenji Tsuda, "Nanoscale local structural study of ferroelectric materials using convergent-beam electron diffraction" (invited), International Conference on Materials and Systems for Sustainability 2017 (ICMaSS2017), 29 Sep. - 1 Oct. 2017, Nagoya University, Nagoya
• Kenji Tsuda, "Nanoscale local structural study of phase transformations in perovskite-type ferroelectrics using convergent-beam electron diffraction" (invited), The International union of materials research society-International conference of advanced materials (IUMRS-ICAM2017), Symposium: A-6 : Forefront of the functional development of strongly correlated materials , 30 Aug. - 1 Sep. 2017, Kyoto University, Kyoto
• Kenji Tsuda, "Mapping of Nanoscale Structural Fluctuations in Ferroelectric BaTiO₃ using STEM-CBED" (invited), Microscopy and Microanalysis 2016, 24-28 Jul. 2016, Columbus Convention Center, Columbus, USA
• Kenji Tsuda, "Direct Observation of Symmetry Breaking in the Nanoscale Local Structure of the cubic phase of BaTiO₃ using STEM-CBED" (invited), 13th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity (RCBJSF) and International Workshop on Relaxor Ferroelectrics 2016 (IWRF), 19-23 Jun. 2016, Matsue, Japan
• Kenji Tsuda, "Study of nanoscale local structures of perovskite-type ferroelectrics using STEM-CBED" (invited), 11th Asia-Pacific Microscopy Conference, 23-27 May 2016, Phuket, Thailand
• Kenji Tsuda, "Convergent-beam electron diffraction study of local structural fluctuations in perovskite-type ferroelectrics", Microscopy and Microanalysis 2015, 2-6 Aug. 2015, Oregon Convention Center, Portland, OR, USA
• Kenji Tsuda, "Study of nanoscale local structural fluctuations in ferroelectrics using convergent-beam electron diffraction", The joint 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity and 9th International Conference Functional Materials and Nanotechnologies (RCBJSF-2014 -FMNT), 29 Sep.- 2 Oct. 2014, Riga, Latvia.
• Kenji Tsuda, "Study of nanoscale local structures of ferroelectric barium titanate using convergent-beam electron diffraction", The 15th International Union of Materials Research Societies, International Conference in Asia (IUMRS-ICA2014), 24-30, Aug. 2014, Fukuoka Univ., Fukuoka, Japan.
• K. Tsuda, "Space group determination and application to phase transformations", Workshop on Advanced Electron Diffraction Methods for Materials Analysis 14-15 Aug. 2014, McMaster Univ., Hamilton, Canada.
• Kenji Tsuda, "Study of nanoscale local structures of ferroelectric barium titanate using convergent-beam electron diffraction", The 23rd Congress and General Assembly of the International Union of Crystallography (IUCr 2014), 5-13, Aug. 2014, Montreal, Canada.
• Kenji Tsuda, "Study of nanoscale local structures of ferroelectric barium titanate using convergent-beam electron diffraction", The 12th Conference of the Asian Crystallographic Association (AsCA2013), 7-10, Dec. 2013, HKUST, Hong Kong.
• Kenji Tsuda, "Electrostatic potential analysis of ferroelectrics using convergent-beam electron diffraction", Electron Microscopy & Multiscale Modeling 2013 (EMMM2013), 10-13 Nov. 2013, Kyoto University, Kyoto.
• Kenji Tsuda, "Study of Nanoscale Local Structures in Ferroelectric Barium Titanate Using Convergent-Beam Electron Diffraction", 16th US-Japan Seminar on Dielectric and Piezoelectric Materials, 6-9, Nov. 2013, Sheraton Hotel, Raleigh, NC, USA.
• Kenji Tsuda, "Study of nanometer-scale local structures in ferroelectric BaTiO3 using convergent-beam electron diffraction", The 30th Conference of Microscopy Society of Thailand (MST30), 23-25, Jan. 2013, Chanthaburi, Thailand.
• Kenji Tsuda, "Study of local structural fluctuations in ferroelectric BaTiO3 using convergent-beam electron diffraction", The 9th Korea-Japan Conference on Ferroelectrics, 7-10, Aug. 2012, University of Ulsan, Ulsan, Korea.
• Kenji Tsuda, "Transmission Electron Microscopy Based Techniques for Investigating Charge/Orbital Ordered States", The 17th Sagamore Conference -- Great Potentials from Advanced Probes -- , 15-20, Jul. 2012, Kitayuzawa, Hokkai-do, Japan.
• K. Tsuda: "Theory of Dynamical Diffraction / Quantitative CBED / CBED analysis - MBFIT/WinKiku", lectures in the 43rd crystallographic course "Electron Crystallography - New Methods to Explore Structures and Properties of the Nanoworld", 2-12 June 2011, Ettore Majorana Centre, Erice, Italy.
• K. Tsuda: "Analysis of crystal structure and electrostatic potential using convergent-beam electron diffraction" (invited), The 27th Annual Conference of The Microscopy Society of Thailand, 20-22 Jan. 2010, Koh Samui, Thailand.
• K. Tsuda: "Electrostatic potential analysis of transition metal oxides using convergent-beam electron diffraction" (invited), IUCr2008 Satellite meeting, Development of Advanced Instruments for New Electron Microscopy and Diffraction, 1-2 Sep. 2008, Nagoya Univ., Nagoya.
• K. Tsuda: "Refinement of crystal structural parameters and charge density using convergent-beam electron diffraction", the 8th Taiwan-Japan Joint Seminar on Crystallography, 26-27 Sep. 2006, Yilan, Taiwan.
• K. Tsuda and M. Tanaka: "Electrostatic potential and electron density analysis of the ferroelectric phase of BaTiO3 using convergent-beam electron diffraction", the 16th International Microscopy Congress, 3-8 Sep. 2006, Sapporo, Japan.
• K. Tsuda: "Structural and charge-density studies of transition-metal oxides using convergent-beam electron diffraction", the XX Congress of the International Union of Crystallography, 23-31 Aug. 2005, Florence, Italy.
• K. Tsuda, Y. Ogata and M. Tanaka: "Refinement of crystal structural parameters and charge density using convergent-beam electron diffraction", Gordon Research Conference "Electron Distribution and Chemical Bonding", 4-9 Jul. 2004, South Hadley, USA.
• K. Tsuda: "Refinement of crystal structural parameters and charge density using convergent-beam electron diffraction", 8th Asia-Pacific conference on Electron Microscopy (8APEM), 6-11 Jun. 2004, Kanazawa, Japan.
• K. Tsuda, Y. Ogata and M. Tanaka: "Refinement of crystal structural parameters and charge density using convergent-beam electron diffraction", 18th Australian Conference of Microscopy and Microanalysis (ACMM18), 2-6 Feb. 2004, Geelong, Australia.
• K. Tsuda, Y. Ogata and M. Tanaka: "Charge density measurements of transition metal oxides using convergent-beam electron diffraction", Sagamore XIV (Meeting of the IUCr Commission on Charge, Spin and Momentum Densities), 14-18 Aug. 2003, Broome, Australia.
• K. Tsuda, Y. Ogata and M. Tanaka: "Refinement of crystal structural parameters and charge density using convergent-beam electron diffraction", International Congress on Electron Microscopy (ICEM) (Session chair: J. P. Morniroli), 4 Sep. 2002, Durban, South Africa.
• K. Tsuda, Y. Ogata and M. Tanaka: "Refinement of crystal structural parameters and charge density using convergent-beam electron diffraction", Microscopy and Microanalysis 2002, 4-8 Aug. 2002, Quebec city, Canada.
• K. Tsuda and M. Tanaka: "Refinement of crystal structural parameters and charge density using convergent-beam electron diffraction", Gordon Research Conference "Electron Distribution and Chemical Bonding", 8-13 Jul. 2001, South Hadley, USA.
• K. Tsuda and M. Tanaka: "Nanometer crystal structure analysis by EF-CBED and EF-microscopy", Microscopy and Microanalysis (M&M2000), 13-17 Aug. 2000, Philadelphia, USA.
• K. Tsuda, K. Saitoh, M. Terauchi, M. Tanaka, A. P. Tsai, A. Inoue and T. Masumoto: "Noncentrosymmetric decagonal quasicrystals", Int. Conf. on Aperiodic Crystals (Aperiodic '97), Aug., 1997, Alpe d'Huez, France.
• K. Tsuda, K. Saitoh, M.Terauchi, M. Tanaka, A. P. Tsai, A. Inoue and T. Masumoto: "Convergent-beam electron diffraction and high-resolution electron microscope studies of decagonal quasicrystals", 6th Int. Conf. on Quasicrystal (ICQ6), May, 1997, Tokyo, Japan.

Miscellaneous

• Dynamical diffraction simulation: MBFIT
• Triebenberg Lab