With DOI links. The latest publication/presentation list is available at

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Garey Powers
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1 Publications With DOI links. The latest publication/presentation list is available at Books 1. Microwave spectroscopy of Q1D and Q2D organic conductors Stephen Hill and Susumu Takahashi in The Physics of Organic Superconductors and Conductors, A. G. Lebed (eds.), Springer, New York (2008) [ISBN: ] [condmat/ ] Submitted Papers 2. Free electron laser powered electron paramagnetic resonance spectroscopy S. Takahashi, L. C. Brunel, D. T. Edwards, J. van Tol, G. Ramian, S. Han and M. S. Sherwin Submitted (2012) [arxiv: ] 1. Distance measurements across randomly distributed nitroxide probes from the temperature dependence of the electron spin phase memory time at 240 GHz D. T. Edwards, S. Takahashi, M. S. Sherwin and S. Han Submitted to J. Mag. Res. (2012) Accepted Papers 23. Decoherence in crystals of quantum molecular magnets S. Takahashi, I. S. Tupitsyn, J. van Tol, C. C. Beedle, D. N. Hendrickson, and P. C. E. Stamp Nature 476, 76 (2011) [doi] 22. Cavity dumping of an injection locked free electron laser S. Takahashi, G. Ramian, and M. S. Sherwin Applied Physics Letters 95, (2009) [doi] 21. Coherent manipulation and decoherence of S=10 single molecule magnets S. Takahashi, J. van Tol, C. C. Beedle, D. N. Hendrickson, L. C. Brunel, and M. S. Sherwin Physical Review Letters 102, (2009) [doi] 20. High field phenomena of qubits J. van Tol, G. W. Morley, S. Takahashi, D. R. McCamey, C. Boehme, M. E. Zvanut Applied Magnetic Resonance 36, 259 (2009) [doi] 19. Quenching spin decoherence in diamond through spin bath polarization 1/10

2 S. Takahashi, R. Hanson, J. van Tol, M. S. Sherwin and D. D. Awschalom Physical Review Letters 101, (2008) 1 [doi] 18. Large Mn25 single molecule magnet with spin S=51/2: magnetic and high frequency electron paramagnetic resonance spectroscopic characterization of a giant spin state M. Murugesu, S. Takahashi, A. Wilson, K. A. Abboud, W. Wernsdorfer, S. Hill, G. Christou Inorganic Chemistry 47, 9459 (2008) [doi] 17. Pulsed EPR spectrometer with injection locked UCSB free electron laser S. Takahashi, D.G. Allen, J. Seifter, G. Ramian,M.S. Sherwin,J. van Tol,L. C. Brunel Infrared Physics and Technology 55, 426 (2008) [doi] 16. Submegahertz linewidth at 240 GHz from an injection locked free electron laser S. Takahashi, G. Ramian, M. S. Sherwin, L. C. Brunel and J. van Tol Applied Physics Letters 91, (2007) [doi] 15. A diffraction compensating 0 25 ns free space terahertz delay line for coherent quantum control D. G. Allen, L. Persechini, S. Takahashi, G. Ramian and M. S. Sherwin Review of Scientific Instruments 78, (2007) [doi] 14. The UCSB MM FEL injection locking system G. Ramian, S. Takahashi and M. S. Sherwin Proceeding of FEL 2007, Novosibirsk, Russia (2007) [link] 13. Are Lebed s magic angles truly magic? S. Takahashi,* A. Betancur Rodiguez, S. Hill, S. Takasaki, J. Yamada and H. Anzai Journal of Low Temperature Physics 142 Nos. 3/4, 311 (2006) [doi] 12. Study of non magnetic impurity effects of the organic superconductor (TMTSF) 2 ClO 4 S. Takahashi, S. Hill, S. Takasaki, J. Yamada and H. Anzai AIP Conference Proceedings 850, 619 (2006) [doi] 11. Periodic orbit resonance in the quasi 1D organic superconductor (TMTSF) 2 ClO 4 S. Takahashi, S. Hill, S. Takasaki, J. Yamada and H. Anzai Physical Review B 72, (2005) [doi] 10. A rotating cavity for high field angle dependent microwave spectroscopy of lowdimensional conductors and magnets S. Takahashi and S. Hill 1 This article has been chosen as PRL editor s suggestions, has been highlighted in APS online journal Physics Synopses, titled Quantum Coherence in Cold Baths in July 29th 2008, and selected for the August 4, 2008 issue of Virtual Journal of Nanoscale Science & Technology and the August 2008 issue of Virtual Journal of Quantum Information. 2/10

3 Review of Scientific Instruments 76, (2005) [doi] 9. Angle resolved mapping of the Fermi velocity in quasi two dimensional conductors and superconductors: probing quasiparticles in nodal superconductors S. Takahashi and S. Hill Journal of Applied Physics 97, 10B106 (2005) [doi] 8. Fermi surface studies of quasi 1D and quasi 2D organic superconductors using periodic orbit resonances in high magnetic fields S. Takahashi, A. E. Kovalev, S. Hill, S. Takasaki, J. Yamada, H. Anzai, J. S. Qualls, K. Kawano, M. Tamura, T. Naito and H. Kobayashi International Journal of Modern Physics B 18 Nos , (2004) [doi] Also in Proc. Int. Conf. on High Magnetic Field in Semiconductor Physics (SemiMag 16), Y. J. Wang, L. Engel and N. Bonesteel (eds.) World Scientific, Singapore (2005); IBSN: A comparison between high symmetry Mn 12 single molecule magnets in different ligand/solvent environments S. Hill, N. Anderson, A. Wilson, S. Takahashi, K. Petukhov, N. E. Chakov, M. Murugesu, J. M. North, E. del Barco, A. D. Kent, N. S Dalal, and G. Christou Polyhedron 24, 2280 (2005) [doi] 6. A spectroscopic comparison between several high symmetry S = 10 Mn 12 singlemolecule magnets S. Hill, N. Anderson, A. Wilson, S. Takahashi, N. E. Chakov, M. Murugesu, J. M. North, N. S. Dalal, and G. Christou Journal of Applied Physics 97, 10M510 (2005) [doi] 5. Discrete easy axis tilting in Mn 12 acetate, as determined by EPR: implications for the magnetic quantum tunneling mechanism S. Takahashi, R. S. Edwards, J. M. North, S. Hill and N. S. Dalal Physical Review B 70, (2004) [doi] 4. Temperature dependence of the Josephson plasma resonance between vortex phases in the organic superconductor (BEDT TTF) 2 Cu(NCS) 2 D. K. Benjamin, S. Takahashi, S. Hill and J. S. Qualls Solid State Communications 131, 719 (2004). [doi] 3. High field high frequency EPR techniques and their application to single molecule magnets R. S. Edwards, S. Hill, P. Goy, R. Wylde and S. Takahashi Physica B , 211 (2004) [doi] 2. Effect of an in plane magnetic field on the interlayer phase coherence in the extreme 2D organic superconductor (BEDT TTF) 2 Cu(NCS) 2 3/10

4 A. E. Kovalev, S. Takahashi, S. Hill and J. S. Qualls International Journal of Modern Physics B 17 Nos , 3547 (2003) [doi] 1. Periodic orbit resonance in (TMTSF) 2 ClO 4 A. E. Kovalev, S. Hill, S. Takahashi, T. N. Dhakal, S. Takasaki, J. Yamada H. Anzai and J. S. Brooks Journal of Applied Physics 93, 8665 (2003) [doi] Non refereed Journals 4. Coherent manipulation and decoherence of S=10 single molecule magnets S. Takahashi, J. van Tol, C. C. Beedle, D. N. Hendrickson, L. C. Brunel and M. S. Sherwin Selected for the Mag Lab Reports highlights issue in Volume6 Issue [link] 3. Quenching spin decoherence in diamond through spin bath polarization S. Takahashi, R. Hanson, J. van Tol, M. S. Sherwin and D. D. Awschalom Selected for the Mag Lab Reports highlights issue in Volume6 Issue [link] 2. A method to study angle dependent high field microwave magneto conductivity using a cavity perturbation technique Susumu Takahashi and Stephen Hill Selected for the NHMFL Reports highlights issue in Volume11 Issue [link] 1. Probing the Fermi surfaces of quasi two dimensional organic superconductors by high field resonant microwave conductivity technique S. Takahashi, K. Petukhov, A. E. Kovalev, D. Benjamin, J. S. Qualls, K. Kawano, M. Tamura, T. Naito and H. Kobayashi Selected in the NHMFL Reports highlights issue in Volume11 Issue [link] Presentations Invited Talks 8. Free electron laser powered EPR spectroscopy The 54th Rocky mountain conference, Copper mountain, CO (July 2012) 7. Development for single molecule magnetic resonance spectroscopy The 2012 Stauffer symposium at USC, Los Angeles, CA (April 2012) 6. Decoherence in crystals of quantum molecular magnets The Quantum Science Symposium, Cambridge, MA (September 2011) 5. Spin decoherence at high magnetic fields 4/10

5 The Quantum Coherent Properties of Spin III workshop, Orlando, FL (December 2010) 4. Coherent manipulation and decoherence of S=10 single molecule magnets The 2009 APS March meeting, Pittsburgh, PA (March 2009) 3. Coherent manipulation and decoherence of S=10 Fe8 single molecule magnets The Quantum Coherent Properties of Spin I workshop, New Orleans, LA (November 2008) 2. Development of 0.24 THz pulsed EPR with the UCSB free electron laser The free electron laser workshop in Jefferson lab, Newport News, VA (January 2007) 1. Study of periodic orbit resonances in (TMTSF) 2 ClO 4 The 6 th International Symposium on Crystalline Organic Superconductors, and Ferromagnets (ISCOM 2005), Key West, FL (September 2005) Departmental Seminars and Colloquia 15. Spin decoherence at high magnetic fields: New magnetic resonance approaches Physical chemistry Seminar, Department of Chemistry, University of Washington (May 2012) 14. Overcoming decoherence of spin based qubits in solid state systems Colloquium, Department of Physics, UC Santa Barbara (November 2011) 13. Spin decoherence at high magnetic fields Colloquium, Department of Physics, University of Southern California (September 2011) 12. Spin decoherence at high magnetic fields Colloquium, Department of Physics, Wayne State University (February 2010) 11. Spin decoherence at high magnetic fields Colloquium, Department of Physics, University of Oregon (February 2010) 10. Spin decoherence at high magnetic fields Colloquium, Department of Physics, McGill University (February 2010) 9. Spin decoherence at high magnetic fields Colloquium, Department of Physics, University of West Virginia (February 2010) 8. Quenching spin decoherence in diamond Colloquium, Department of Physics, University of Pittsburgh (January 2010) 5/10

6 7. Spin decoherence at high magnetic fields Physical/Theoretical Chemistry Seminar, Department of Chemistry, University of Southern California (January 2010) 6. Quenching spin decoherence in diamond and single molecule magnets Condensed matter seminar, Department of Physics, University of Virginia (February 2009) 5. Free electron laser based pulsed electron paramagnetic resonance Physical chemistry Seminar, Department of Chemistry, University of Florida (February 2009) 4. Quenching spin bath decoherence in high magnetic fields Condensed matter seminar, National High Magnetic Field Laboratory, Tallahassee, FL (February 2009) 3. High frequency EPR: Quenching spin decoherence through spin bath polarization THz Seminar, UC Santa Barbara (November 2008) 2. Next generation high frequency (>100GHz), high field EPR at UCSB THz Seminar, UC Santa Barbara (April 2007) 1. Cyclotron resonance involving an open Fermi surface Condensed Matter Seminar, University of California Santa Barbara (November 2005) Oral Presentations (* indicates the speaker) 21. Development of a high field electron paramagnetic resonance spectrometer E. E. Romanova,* F. Cho, V. Stepanov and S. Takahashi The 2012 APS March meeting, Cambridge, MA (February 2012) 20. Noises of spin baths for qubits in diamond Z. H. Wang,* A. Das, D. Lidar and S. Takahashi The 2012 APS March meeting, Cambridge, MA (February 2012) 19. Investigating spin decoherence in nanodiamonds using a multi frequency electron spin resonance A. Das,* E. E. Romanova, X. Zhang and S. Takahashi The 2012 APS March meeting, Cambridge, MA (February 2012) 18. Distance measurement based on electron spin decoherence time (T 2 ) S. Takahashi,* D. Edwards, S. Han and M. S. Sherwin The 2010 APS March meeting, Portland, OR (March 2010) 6/10

7 17. Quenching spin decoherence in diamond through spin bath polarization S. Takahashi,* R. Hanson, J. van Tol, M. S. Sherwin and D. D. Awschalom The 50th Rocky mountain conference, Breckenridge, CO (July 2008) 16. High frequency EPR of impurities in diamond S. Takahashi,* R. Hanson, J. van Tol, M. S. Sherwin and D. D. Awschalom The 2008 APS March meeting, New Orleans, LA (March 2008) 15. EPR spectroscopy with injection locked UCSB free electron laser S. Takahashi,* G. Ramian, M. S. Sherwin, L. C. Brunel and J. van Tol The 4th International Workshop on Infrared Microscopy and Spectroscopy with Accelerator Based Sources (WIRMS 2007), Awaji island, Hyogo, Japan (September 2007) THz pulsed electron paramagnetic resonance to firm protein in action with the UCSB free electron laser S. Takahashi,* G. Ramian, S. Han, L. C. Brunel, J. van Tol and M. S. Sherwin The 49th Rocky mountain conference, Breckenridge, CO (July 2007) THz pulsed electron paramagnetic resonance to firm protein in action with the UCSB free electron laser S. Takahashi,* D. G. Allen, K. Akabori, M. Anholm, G. Ramian, L. C. Brunel, J. van Tol and M. S. Sherwin The 2007 APS March meeting, Denver, CO (March 2007) 12. Pressure dependence of the zero field splittings for the Fe8 single molecule magnet S. Takahashi, E. Thompson, S. Hill,* S. W. Tozer, A. G. Harter and N. S. Dalal The 2006 APS March meeting, Baltimore, MD (March 2006) 11. Study of the Fermi velocity and scattering time by periodic orbit resonance in the quasi one dimensional conductor (TMTSF) 2 ClO 4 S. Takahashi,* S. Hill, S. Takasaki, J. Yamada and H. Anzai The 2005 APS March meeting, Los Angeles, CA (March 2005) 10. Angle resolved mapping of the Fermi velocity in quasi two dimensional conductors and superconductors: Probing quasiparticles in nodal superconductors Susumu Takahashi,* Alexey. E. Kovalev and Stephen Hill The 49th Conference on Magnetism and Magnetic Materials (MMM 2004), Jacksonville, FL (November 2004) 9. A spectroscopic comparison between several high symmetry S=10 Mn 12 single molecule magnets S. Hill,* N. Anderson, A Wilson, S. Takahashi, N. E. Chakov, M. Murugesu, M. North, N. Dalal and G. Christou 7/10

8 The 49th Conference on Magnetism and Magnetic Materials (MMM 2004), Jacksonville, FL (November 2004) 8. Fermi surface studies of quasi 1D and quasi 2D organic superconductors using periodic orbit resonances in high magnetic fields S. Takahashi,* A. E. Kovalev, S. Hill, S. Takasaki, J. Yamada, H. Anzai, K. Kawano, M. Tamura, T. Naito and H. Kobayashi The 16 th International Conference on High Magnetic Fields in Semiconductor Physics (SemiMag16), Tallahassee, FL (August 2004) 7. Probing the Fermi surfaces of quasi 2D (ET) 2 I 3 and (ET) 2 Cu(NCS) 2 S. Takahashi,* D. Benjamin, A. E. Kovalev, K. Petukhov, S. Hill, K. Kawano, M. Tamura, T. Naito and H. Kobayashi The 2004 APS March meeting, Montreal, Canada (March 2004) 6. Magnetic quantum tunneling and quantum coherence in manganese based singlemolecule magnets S. Hill,* R. S. Edwards, K. Petukhov, S. Takahashi, N. Aliaga Alcalde, N. Chakov, G. Christou, N. Dalal and M. North The 2004 APS March meeting, Montreal, Canada (March 2004) 5. Angle resolved microwave spectroscopy of the normal and superconducting states of low dimensional molecular superconductors S. Hill,* A. E. Kovalev, S. Takahashi and M. Mola The Southeastern section of the APS annual meeting, Wrightsville Beach, NC (November 2003) 4. Microwave studies of the organic conductor (BETS) 2 Fe x Ga 1 x Cl 4 (x=1, 0.37) S. Takahashi,* A. E. Kovalev, S. Hill, D. B. Engel, L. K. Montgomery, S. Uji, M. Tokumoto, A. Kobayashi, H. Tanaka and H. Kobayashi The 2003 APS March meeting, Austin, TX (March 2003) 3. Observation of nodes in the high frequency Shubnikov de Haas effect in several highly two dimensional organic conductors A. E. Kovalev,* S. Hill, S. Takahashi, S. Uji, K. Kawano, M. Tamura, T. Naito, H. Kobayashi, J.S. Schlueter and N.D. Kushch The 2003 APS March meeting, Austin, TX (March 2003) 2. Interlayer electrodynamics in the organic superconductor (BEDT TTF) 2 Cu(NCS) 2 S. Hill,* A. E. Kovalev, S. Takahashi and J. S. Qualls, presented at The Fourth International Conference on New Theories, Discoveries, and Applications of Superconductors and Related Materials (New3SC 4), San Diego, CA (January 2003) 1. Periodic orbit resonance in (TMTSF) 2 ClO 4 8/10

9 A. E. Kovalev,* S. Hill, S. Takahashi, J. Yamada, and H. Anzai The 47th Annual Conference on Magnetism and Magnetic Materials, Tampa, FL (November 2002) Poster Presentations 10. Overcoming spin decoherence of NV centers in diamond using high magnetic fields A. Das and S. Takahashi The Quantum Error Correction 2011, Los Angeles, CA (December 2011) 2 9. Spin decoherence in S=10 sngle molecule magnets S. Takahashi, J. van Tol, C. C. Beedle, D. N. Hedrickson, L. C. Brunel and M. S. Sherwin The 51th Rocky mountain conference, Breckenridge, CO (July 2009) 8. Development of 0.24 THz pulsed electron paramagnetic resonance to investigate fast dynamics of proteins in solution S. Takahashi, G. Ramian, S. Han, L. C. Brunel, J. van Tol and M. S. Sherwin The 50th Rocky mountain conference, Breckenridge, CO (July 2008) 7. Free electron laser based pulsed paramagnetic electron resonance S. Takahashi, G. Ramian, L. C. Brunel, J. van Tol and M. S. Sherwin The 2008 APS March meeting, New Orleans, LA (March 2008) 6. Study of non magnetic impurity effects in the organic superconductor (TMTSF) 2 ClO 4 S. Takahashi, S. Hill, S. Takasaki, J. Yamada and H. Anzai The 24th International Conference on Low Temperature Physics (LT24), Orlando, FL (August 2005) 5. Development of ultra high frequency microwave instrumentation for low loss magnetic resonance spectroscopy at high magnetic fields S. Takahashi, S. C. Lee, A. Wilson, S. Hill, R. Wylde and P. Goy The Physical Phenomena at High Magnetic Fields V (PPHMF V), Tallahassee, FL (August 2005) 4. Study of the organic superconductor (TMTSF) 2 PF 6 in a pressurized environment E. Thompson, S. Takahashi, S. C. Lee, S. Datta, S. S. Kim, A. Betancur Rodiguez, S. Hill, S. Takasaki, J. Yamada and H. Anzai The 6th International Symposium on Crystalline Organic Superconductors, and Ferromagnets (ISCOM 2005), Key West, FL (September 2005) 3. A comparison between high symmetry Mn 12 single molecule magnets in different ligand/solvent environments 2 A. Das received the QEC11 poster award. 9/10

10 S. Hill, N. Anderson, A. Wilson, S. Takahashi, K. Petukhov, N. E. Chakov, M. Murugesu, J. M. North, E. del Barco, A.D. Kent, N. S Dalal, and G. Christou The International Conference on Molecule Based Magnets (ICMM 2004), Tsukuba, Japan (October 2004) 2. A method to study angle dependent high field EPR/EMR using a cavity perturbation technique S. Takahashi, S. Hill, A. E. Kovalev, J. Lawrence, M. North, N. Dalal The Florida Inorganic Mini Symposium (FIMS), Gainesville, FL (October 2003) 1. A method to study angle dependent high field EPR/EMR using a cavity perturbation technique S. Takahashi, S. Hill, A. E. Kovalev, J. Lawrence, M. North, N. Dalal The 33rd Southeastern Magnetic Resonance Conference (SEMRC), Tallahassee, FL (October 2003) 10/10

High Field EPR at the National High. Johan van Tol. Magnetic Field Lab

High Field EPR at the National High Johan van Tol Magnetic Field Lab Overview EPR Introduction High Field CW EPR typical examples ENDOR Pulsed EPR Relaxation rates Qubits Relaxation at high fields Outlook