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Dr. Takahisa D. Tokumoto

Postdoctoral Associate
Condensed Matter Science, DC Field CMS

Email:
Phone:	850 - 645-5667
Fax:	850 - 644-5038
Address:	A327 NHMFL FSU 1800 E. Paul Dirac Dr. Tallahassee , FL 32310-3706

Educational Background:
Masters, University of Tokyo, Science

Disclaimer: The information presented below was automatically generated from a database. In the rare instance of an exact name match, it is possible that a citation is inaccurately attributed. The listing should therefore be considered unofficial. To report a mismatched publication, contact IMsystems@magnet.fsu.edu.

Publications and Scientific Activities

##	Peer-Reviewed Publications
1	Brooks, J.S.; Vasic. R.; Kismarahardja, A.; Steven, E.; Tokumoto, T.; Schlottmann, P. and Kelly, S., Debye relaxation in high magnetic fields, Phys. Rev. B, 78, 045205 (2008) [read online]
2	Tokumoto, T.; Brooks, J.S.; Oshima, Y.; Choi, E.S.; Brunel, L.-C.; Akutsu, H.; Kaihatsu, T.; Yamada, J. and van Tol, J., Antiferromagnetic d-Electron Exchange via a Spin-Singlet pi-Electron Ground State in an Organic Conductor, Phys. Rev. Lett., 100 (14), 147602 (2008) [read online]
3	Jeon, K.; Lumata, L.; Tokumoto, T.; Brooks, J. and Alamo, R.G., Low Electrical Conductivity Threshold and Crystalline Morphology of Single-Walled Carbon Nanotubes-High Density Polyethylene Nanocomposites Characterized by SEM, Raman Spectroscopy and AFM, Polymer, 48 (16), 4751-4764 (2007)
4	Jeon, K.; Lumata, L.; Tokumoto, T.; Steven, E.; Brooks, J.S. and Alomo, G.A., Low electrical conductivity threshold and crystalline morphology of single-walled carbon nanotubes – high density polyethylene nanocomposites characterized by SEM, Raman spectroscopy and AFM, Polymer, 48, 4751-4764 (2007) [read online]
5	Channels, L.; Tokumoto, T.; Jobiliong, E.; Brooks, J.S.; Nellutla, S. and Dalal, N.S., Dielectric, Electron Paramagnetic Resonance and Transport Properties of Spanish Moss, J. Low Temp. Phys., 142, 663 (2006)
6	Uji, S.; Terashima, T.; Nishimura, M.; Takahide, Y.; Konoike, T.; Enomoto, K.; Cui, H.; Kobayashi, H.; Kobayashi, A.; Tanaka, H.; Tokumoto, M.; Choi, E-S.; Tokumoto, T.; Graf, D. and Brooks, J.S., Vortex dynamics and the Fulde-Ferrell-Larkin-Ovchinnikov state in a magnetic-field-induced organic superconductor, Phys. Rev. Lett., 97, 157001 (2006)
7	Tokumoto, T.; Brooks, J.S.; Graf, D.; Choi, E.S.; Biskup, N.; Eaton, D.L.; Anthony J.E. and Odom, S.A., Persistent photo-excited conducting states in functionalized pentacene, Synthetic Met., 152, 449 (2005)
8	Brooks, J.S.; Tokumoto, T.; Choi, E.S.; Graf, D.; Biskup, N.; Eaton, D.L.; Anthony, J.E. and Odom, S.A., Persistent photoexcited conducting states in functionalized pentacene, J. Appl. Phys., 96, 3312 (2004)
9	Brooks, J.S.; Vasic, R.; Tokumoto, T.; Graf, D.; Chung, O.H.; Anthony, J.E. amd Odom, S.A., Transport and melt processing in functionalized pentacene with ‘organic wire connections’, Current Appl. Phys., 4, 479-483 (2004)
10	Tokumoto, T.; Jobiliong, E.; Choi, E.S.; Oshima, Y. and Brooks, J.S., Electric and thermoelectric transport probes of metal–insulator and two-band magnetotransport behavior in graphite, Solid State Commun., 129, 599 (2004)
11	Tokumoto, T.; Brooks, J.S.; Clinite, R.; Wei, X.; Anthony, J.E.; Eaton, D.L. and Parkin, S.R., Photoresponse of the conductivity in functionalized pentacene compounds, J. Appl. Phys., 92 (9), 5208-5213 (2002) [read online]

##	Presentations, Posters & Abstracts
1	Gebre, T.; Tokumoto, T.; Cherian, J.; McGill, S.A.; Tozer, S.; Palm, E.; Murphy, T. and Wiebe, C.R., Optical Study of the Heavy Fermion Superconductor CeCoIn₅, American Physical Society March Meeting, Pittsburgh, PA, March 16-20 (2009)
2	McGill, S.A.; Tokumoto, T.; Cherian, J. and Gebre, T., Ultrafast User Optics at the NHMFL in Tallahassee, Southeastern Ultrafast Conf., CREOL-Townes Laser Center, University of Central Florida, Orlando, FL, January 15-16 (2009)
3	Tokumoto, T; Cherian, J.; Gebre, T.; deRosa, R.; Sahanggamu, P.; Ghosh, S.; Zhou, H.; Wiebe, C.R.; and McGill, S.A., Time-resolved Optical Study of Charge-ordered Manganites, American Physical Society March Meeting, Pittsburgh, PA, March 16-20 (2009) [read online]
4	Tokumoto, T.; van Tol, J.; Brunel, L.C.; Graf, D.; Brooks, J.S.; Oshima, Y. and Papavassiliou, G., High field ESR on tau phase conductor -- from GHz to THz-, American Physical Society March Meeting, New Orleans, LA, March 10-14 (2008); Published in Bulletin of the American Physical Society, 53 (2 B12.3) (2008)
5	Jeon, K.; Alamo, R.G.; Lumata, L.; Tokumoto, T. and Brooks, J., Electrical Conductivity and Crystalline Morphology of Single-Walled Carbon Nanotube/Linear Polyethylene Nanocomposites, ACS National Meeting. Division of Polymer Chemistry, Chicago, IL, March 25-29 (2007); Published in Polymer Preprints, 48 (1), 953 (2007)
6	Tokumoto, T.; Brooks, J.S.; Oshima, Y.; Brunel, L.C.; Choi, E.S.; Kaihatsu, T.; Yamada, J. and van Tol, J, Antiferromagnetic d-electron exchange via a spin-singlet pi-electron ground state in an organic conductor, 36th Southeast Magnetic Research Conf., Tuscaloosa, AL, November 9-11 (2007)
7	Tokumoto, T.; Brooks, J.S.; Oshima, Y.; Brunel, L.C.; Choi, E.S.; Kaihatsu, T.; Yamada, J. and van Tol, J., Coexistence of a spin singlet state and an exchange interaction, Int. Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets, Spain, September 24-29 (2007)
8	Tokumoto, T.; van Tol, J.; Brunel, L.-C.; Choi, E.S.; Brooks, J.S.; Kaihatsu, T.; Akutsu, H. and Yamada, J., High field ESR study of the pi-d interaction effect in beta-(BDA-TTP)₂MCl₄ (M=Fe, Ga), American Physical Society March Meeting, Denver, CO, March 6 (2007)
9	Tokumoto, T.; Oshima, Y.; Graf, D.; Brooks, J.S.; Van Tol, J.; Brunel, L.C. and Papavassiliou, G., Multiple spin sites in an organic conductor without magnetic ions, American Physical Society March Meeting, Baltimore, MD, March 13-17 (2006)
10	Tokumoto, T.; vanTol, J.; Krzystek, J.; Brunel, L-C.; Brooks, J.S.; Choi, E.S.; Oshima, Y.; Akutsu, H.; Kaihatsu, T. and Yamada, J., ESR Study of the Organic Conductor, ?-(BDA-TTP)₂MCl₄ (M=Fe,Ga), 35th Southeastern Magnetic Resonance Conf., Gainesville, FL, November 3-5 (2006)
11	Tokumoto, T.; Oshima, Y.; Choi, E.S.; Graf, D.; Brooks, J.S.; Yamada, J.; Akutsu. H. and Tokumoto, M., Observation of the exchange narrowing in the pi-d correlated organic conductors, Physical Phenomena at High Magnetic Fields - V, Tallahassee, FL, 08/05/05 (2005)
12	Tokumoto, T.; Oshima, Y.; Graf, D.; Brooks, J.S.; Van Tol, J.; Brunel, L.C. and Papavassiliou, G., What is the origin of multiple spin sites in an organic conductor without magnetic ions?, 34th Southeastern Magnetic Resonance Cinference, Emory Univ. at Atlanta, GA, November 11-13 (2005)

##	Theses
1	Tokumoto, T. (Takahisa), "Spin and Charge Ordering in Organic Conductors Investigated by Electron Spin Resonance", Florida State University, Department of Physics, advisors: Brooks, J.S. and van Tol, J. (2008)

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