Masaaki Matsuda

Matsuda

Beam line: HB-1 PTAX

Position: Instrument Scientist

Instrument: Polarized Triple-Axis Spectrometer

Group: Triple-Axis Spectroscopy

Facility: High Flux Isotope Reactor

Contact: matsudam@ornl.gov or (865) 574-6580

• ​2010-present: Senior Research Staff, Oak Ridge National Laboratory

• 2006-2010: Principal Researcher, Japan Atomic Energy Agency

• 2002-2006: Senior Researcher, Japan Atomic Energy Research Institute/ Japan Atomic Energy Agency

• 2000-2002: Researcher, Japan Atomic Energy Research Institute

• 1993-2000: Researcher, RIKEN (Institute of Physical and Chemical Research), Japan

• 1991-1993: Postdoctoral Fellow, Physics Department, Brookhaven National Laboratory​

Education

•​ Ph.D. in Physics, Department of Physics, Tohoku University, Sendai, Japan, 1992
• M.S. in Physics, Department of Physics, Tohoku University, Sendai, Japan, 1989
• B.S. in Physics, Department of Physics, Tohoku University, Sendai, Japan, 1987

Research

Magnetism in strongly correlated electron systems, quantum spin systems, frustrated magnets, multiferroic systems, and high-TC superconductors. Neutron polarization analysis and neutron scattering in high magnetic fiel​d.​

Selected Publications

1. ​ "Magnetic dispersion and anisotropy in multiferroic BiFeO3", M. Matsuda, R. S. Fishman, T. Hong, C. H. Lee, T. Ushiyama, Y. Yanagisawa, Y. Tomioka, and T. Ito, Phys. Rev. Lett. 109, 067205 (2012).

2. "Universal magnetic structure of the half-magnertization phase in Cr-based spinels", M. Matsuda, K. Ohoyama, S. Yoshii, H. Nojiri, P. Frings, F. Duc, B. Vignolle, G. L. J. A. Rikken, L.-P. Regnault, S.-H. Lee, H. Ueda and Y. Ueda, Phys. Rev. Lett. 104, 047201 (2010).

3. "Magnetic dispersion of the diagonal incommensurate phase in lightly-doped La2-xSrxCuO4", M. Matsuda, M. Fujita, S. Wakimoto, J. A. Fernandez-Baca, J. M. Tranquada, and K. Yamada, Phys. Rev. Lett. 101, 197001 (2008).

4. "Spin-lattice instability to a fractional magnetization state in the spinel HgCr2O4", M. Matsuda, H. Ueda, A. Kikkawa, Y. Tanaka, K. Katsumata, Y. Narumi, T. Inami, Y. Ueda, and S.-H. Lee, Nature Physics 3, 397 (2007).

5. "Electronic phase separation in lightly doped La2-xSrxCuO4", M. Matsuda, M. Fujita, K. Yamada, R. J. Birgeneau, Y. Endoh, and G. Shirane, Phys. Rev. B. 65, 134515 (2002).

6. "Magnetic excitations and exchange interactions in the spin 1/2 two-leg ladder compound La6Ca8Cu24O41", M. Matsuda, K. Katsumata, R. S. Eccleston, S. Brehmer, and H.-J. Mikeska, Phys. Rev. B 62, 8903 (2000).

7. "Static and dynamic spin correlations in the spin-glass phase of slightly-doped La2-xSrxCuO4", M. Matsuda, M. Fujita, K. Yamada, H. Hiraka, Y. Endoh, S. Wakimoto, M. A. Kastner, R. J. Birgeneau, and G. Shirane, Phys. Rev. B 62, 9148 (2000).

8. "Spin fluctuations in superconducting La1.85Sr0.15CuO4", M. Matsuda, K. Yamada, Y. Endoh, T. R. Thurston, G. Shirane, R. J. Birgeneau, M. A. Kastner, I. Tanaka, and H. Kojima, Phys. Rev. B 49, 6958 (1994).

9. "Magnetic order, spin correlations, and superconductivity in single crystal Nd1.85Ce0.15CuO4+d", M. Matsuda, Y. Endoh, K. Yamada, H. Kojima, I. Tanaka, R. J. Birgeneau, M. A. Kastner, and G. Shirane, Phys. Rev. B 45, 12548 (1992).

10. "Three-Dimensional Magnetic Structures and Rare Earth Magnetic Ordering in Nd2CuO4 and Pr2CuO4", M. Matsuda, K. Yamada, K. Kakurai, T. R. Thurston, Y. Endoh, H. Kadowaki, Y. Hidaka, R. J. Birgeneau, P. M. Gehring, A. H. Moudden, and G. Shirane, Phys. Rev. B 42, 10098 (1990).