Ryan T. Gordon. Contact Information

Transcription

1 Ryan T. Gordon Contact Information Department of Physics Western Illinois University Office phone: (309) F Currens Hall, 1 University Circle rt-gordon@wiu.edu Macomb, IL USA Education Iowa State University, Ames, IA August May 2011 Ph.D., Condensed Matter Physics, May 2011 Advisor: Ruslan Prozorov, Ph.D. Thesis title: London penetration depth measurements in iron-based superconductors August May 2005 B.S. with honors, Physics and Mathematics, May 2005 Advisor: Mark S. Boley, Ph.D. Honors thesis title: Dependence of phonon-mediated Raman mode-softening of superconducting MgB 2 on sample preparation temperature Teaching Experience August Present Instructor for: Classical Mechanics Fall 2012 University Physics I (calculus-based) Fall 2012 University Physics III Lab (calculus-based) Fall 2012 General Physics I Lab (algebra-based) Fall 2012 Iowa State University, Ames, IA Recitation and/or laboratory sections: Introduction to Classical Physics I (calculus-based) Fall 2005 Introduction to Classical Physics II (calculus-based) Spring 2006 Introduction to Classical Physics II (calculus-based) Fall 2006 Intermediate Laboratory for Physics Majors Spring 2007 General Physics (algebra-based) Fall 2007 The Physics of Common Experience (algebra-based) Spring 2009 August May 2005 Tutor for all undergraduate physics courses and grader for: University Physics III University Physics IV General Physics (Physics 114) General Physics (Physics 115)

2 Selected Awards 2007 Iowa State University Graduate Student Teaching Award 2005 Western Illinois University Honors College Scholar (only 1 awarded) 2005 Western Illinois University Physics Departmental Scholar (only 1 awarded) 2005 Phi Kappa Phi Fellowship Recipient (while at Western Illinois University) 2004 Barry M. Goldwater Scholar (only 310 awarded in 2004, recipient of $7,500) Work Experience Assistant Professor Teaching and research in the Department of Physics August Present Université de Sherbrooke, Sherbrooke, Québec, Canada Postdoctoral associate May June 2012 Electrical and thermal transport measurements in unconventional superconductors Iowa State University and Ames Laboratory, Ames, IA Graduate student researcher January May 2011 Application of a tunnel diode resonator circuit for studying physical properties of materials at low temperatures and in applied magnetic fields Iowa State University, Ames, IA Graduate teaching assistant August May 2009 Recitation and laboratory instructor for undergraduate physics courses University of Illinois at Urbana-Champaign, Urbana, IL Undergraduate research internship in Physics Department Summer 2004 Nanoscale fabrication of superconducting quantum interference devices (SQUIDs) with the use of a scanning electron microscope Tutor and grader August May 2005 Physics Department tutor and grader for undergraduate physics courses Undergraduate researcher in Physics Department August August 2005 Raman spectroscopy of superconducting MgB 2 Accepted Publications 1) Doping evolution of the absolute value of the London penetration depth and superfluid density in single crystals of Ba(Fe 1 x Co x ) 2 As 2 R. T. Gordon, H. Kim, N. Salovich, R. Giannetta, R. M. Fernandes, V. Kogan, T. Prozorov, S. L. Bud ko, P. C. Canfield, M. A. Tanatar, and R. Prozorov, Phys. Rev. B 82, (2010) (Editor s Suggestion). 2) London penetration depth and strong pair-breaking in iron-based superconductors R. T. Gordon, H. Kim, M. A. Tanatar, R. Prozorov, and V. G. Kogan, Phys. Rev. B 81, (R) (2010). 3) London penetration depth in Ba(Fe 1 x T x ) 2 As 2 (T=Co, Ni) superconductors irradiated with heavy ions H. Kim, R. T. Gordon, M. A. Tanatar, J. Hua, U. Welp, W. K. Kwok, N. Ni, S. L. Bud ko, P. C. Canfield, A. B. Vorontsov, and R. Prozorov, Phys. Rev. B 82, (R) (2010).

3 4) Evidence from anisotropic penetration depth for a three-dimensional nodal superconducting gap in single-crystalline Ba(Fe 1 x Ni x ) 2 As 2 C. Martin, H. Kim, R. T. Gordon, N. Ni, V. G. Kogan, S. L. Bud ko, P. C. Canfield, M. A. Tanatar, and R. Prozorov, Phys. Rev. B 81, (R) (2010). 5) London penetration depth and superfluid density of single-crystalline Fe 1+y (Te 1 x Se x ) and Fe 1+y (Te 1 x S x ) H. Kim, C. Martin, R. T. Gordon, M. A. Tanatar, J. Hu, B. Qian, Z. Q. Mao, Rongwei Hu, C. Petrovic, N. Salovich, R. Giannetta, and R. Prozorov, Phys. Rev. B 81, (R) (2010). 6) The London penetration depth in BaFe 2 As 2 superconductors at high electron doping level C. Martin, H. Kim, R. T. Gordon, N. Ni, A. Thaler, V. G. Kogan, S. L. Bud ko, P. C. Canfield, M. A. Tanatar, and R. Prozorov, Supercond. Sci. Technol. 23 (2010) (4pp). 7) Unconventional London penetration depth in Ba(Fe 0.93 Co 0.07 ) 2 As 2 single crystals R. T. Gordon, N. Ni., C. Martin, M. A. Tanatar, M. D. Vannette, H. Kim, G. Samolyuk, J. Schmalian, S. Nandi, A. Kreyssig, A. I. Goldman, J. Q. Yan, S. L. Bud ko, P. C. Canfield, and Ruslan Prozorov, Phys. Rev. Lett. 102, (2009). 8) London penetration depth in single crystals of Ba(Fe 1 x Co x ) 2 As 2 spanning underdoped to overdoped compositions R. T. Gordon, C. Martin, H. Kim, N. Ni, M. A. Tanatar, J. Schmalian, S. L. Bud ko, P. C. Canfield, and R. Prozorov, Phys. Rev. B 79, (R) (2009). 9) Non-exponential London penetration depth in RFeAsO 0.9 F 0.1 (R=La,Nd) single crystals C. Martin, M. E. Tillman, H. Kim, M. A. Tanatar, S. K. Kim, A. Kreyssig, R. T. Gordon, M. D. Vannette, S. Nandi, V. G. Kogan, S. L. Bud ko, P. C. Canfield, A. I. Goldman, and R. Prozorov, Phys. Rev. Lett. 102, (2009). 10) Non-exponential London penetration depth in (Ba 1 x K x )Fe 2 As 2 single crystals C. Martin, R. T. Gordon, M. A. Tanatar, H. Kim, N. Ni, S. L. Bud ko, P. C. Canfield, H. Luo, H. H. Wen, Z. Wang, A. B. Vorontsov, V. G. Kogan, and R. Prozorov, Phys. Rev. B 80, (R) (2009). 11) Coexistence of long-range magnetic order and superconductivity from Campbell penetration depth measurements R. Prozorov, M. D. Vannette, R. T. Gordon, C. Martin, S. L. Bud ko, and P. C. Canfield, Supercond. Sci. Technol. 22 (3), (2009). 12) Anisotropy of the Optimally-Doped Iron Pnictide Superconductor Ba(Fe Co ) 2 As 2 M. A. Tanatar, N. Ni, C. Martin, R. T. Gordon, H. Kim, V. G. Kogan, G. D. Samolyuk, S. L. Bud ko, P. C. Canfield, and R. Prozorov, Phys. Rev. B 79, (2009). 13) Anisotropic London Penetration Depth and Superfluid Density in Single Crystals of Iron-based Pnictide Superconductors R. Prozorov, M. A. Tanatar, R. T. Gordon, C. Martin, H. Kim, V. G. Kogan, N. Ni, M. E. Tillman, S. L. Bud ko, P. C. Canfield, Physica C 469 (2009) ) Doping-dependent Irreversible Magnetic Properties of Ba(Fe 1 x Co x ) 2 As 2 Single Crystals R. Prozorov, M. A. Tanatar, E. C. Blomberg, P. Prommapan, R. T. Gordon, N. Ni, S. L. Bud ko, and P. C. Canfield, Physica C 469 (2009) ) Electronic properties of iron arsenic high temperature superconductors revealed by angle resolved photoemission spectroscopy (ARPES) Chang Liu, Takeshi Kondo, A. D. Palczewski, G. D. Samolyuk, Y. Lee, M. E. Tillman, N. Ni, E. D. Mun, R. Gordon, A. F. Santander-Syro, S. L. Bud ko, J. L. McChesney, E. Rotenberg, A. V. Fedorov, T. Valla, O. Copie, M. A. Tanatar, C. Martin, B. N. Harmon, P. C. Canfield, R. Prozorov, J. Schmalian, A. Kaminski, Physica C 469 (2009)

4 16) Two gap superconductivity seen in penetration depth measurements of Lu 2 Fe 3 Si 5 single crystals R. T. Gordon, M. D. Vannette, C. Martin, Y. Nakajima, T. Tamegai, and R. Prozorov, Phys. Rev. B 78, (2008). 17) Effect of C and Li doping on the rf magnetic susceptibility of MgB 2 single crystals C. Martin, M. D. Vannette, R. T. Gordon, R. Prozorov, J. Karpinski, and N. D. Zhigadlo, Phys. Rev. B 78, (2008). 18) Vortex phase diagram of Ba(Fe 1 x Co x ) 2 As 2 single crystals R. Prozorov, N. Ni, M. A. Tanatar, V. G. Kogan, R. T. Gordon, C. Martin, E. C. Blomberg, P. Prommapan, S. L. Bud ko, and P. C. Canfield, Phys. Rev. B 78, (2008). Articles under review 1) Doping-induced line nodes in the superconducting gap of the iron aresenide Ba 1 x K x Fe 2 As 2 from thermal conductivity J.-Ph. Reid, M. A. Tanatar, X. G. Luo, H. Shakeripour, S. René de Cotret, R. T. Gordon, A. Juneau-Fecteau, N. Doiron-Leyraud, J. Chang, B. Shen, H.-H. Wen, H. Kim, R. Prozorov, and Louis Taillefer, submitted to Phys. Rev. Lett. 2) Universal Heat Conduction in the Iron-Arsenide Superconductor KFe 2 As 2 : Evidence of a d- wave State J.-Ph. Reid, M. A. Tanatar, A. Juneau-Fecteau, R. T. Gordon, S. René de Cotret, N. Doiron-Leyraud, T. Saito, H. Fukuzawa, Y. Kohori, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, R. Prozorov, and Louis Taillefer, submitted to Phys. Rev. Lett. Invited Talks 1) Tunnel diode resonator measurements of the London penetration depth in superconductors Western Illinois University April 25, 2012 Macomb, IL, USA 2) London penetration depth measurements in iron-based superconductors CIFAR Summer School, University of British Columbia May 25, 2011 Vancouver, B.C., Canada 3) London penetration depth as a sensitive tool for determining the superconducting gap structure in iron-pnictide superconductors APS 2011 March Meeting March 22, 2011 Dallas, TX, USA 4) The absolute value of the London penetration depth in iron-based superconductors Johns Hopkins University December 8, 2010 Baltimore, MD, USA 5) Evolution of the superfluid density as a function of doping level in Ba(Fe 1 x Co x ) 2 As 2 University of Maryland December 9, 2010 College Park, MD, USA 6) London penetration depth measurements in the Ba(Fe 1 x Co x ) 2 As 2 series Université de Sherbrooke November 30, 2010 Sherbrooke, Québec, Canada 7) The importance of undergraduate research for graduate school Undergraduate Research Day at Western Illinois University April 18, 2007 Macomb, IL, USA

5 Conferences and Presentations 1) APS 2012 March Meeting Boston, MA February 28, 2012 Contributed oral presentation: Doping induced line nodes in the superconducting gap of the iron arsenide (Ba 1 x K x )Fe 2 As 2 from thermal conductivity 2) APS 2011 March Meeting Dallas, TX March 23, 2011 Contributed oral presentation: London penetration depth measurements in Ba(Fe 1 x TM x ) 2 As 2 (TM=Co,Ni,Ru,Rh,Pd,Pt,Co/Cu) single crystals 3) Workshop on Principles and Design of Strongly Correlated Electronic Systems ICTP, Trieste, Italy August 2-13, 2010 Oral presentation: London penetration depth measurements of Ba(Fe 1 x Co x ) 2 As 2 Poster presentation: London penetration depth measurements of Ba(Fe 1 x M x ) 2 As 2 (M=Co, Ni, Pd, Pt, Co+Cu) 4) International Conference on Strongly Correlated Electron Systems Santa Fe, NM June 27 - July 2, 2010 Poster presentation: Measurements of the in-plane London penetration depth and superfluid density as a function of doping level in the Ba(Fe 1 x Co x ) 2 As 2 series 5) Gordon Research Conference Mount Holyoke College, South Hadley, MA June 13-18, 2010 Poster presentation: The absolute value of the in-plane London penetration depth as a function of doping level in Ba(Fe 1 x Co x ) 2 As 2 and the corresponding superfluid density 6) APS 2010 March Meeting Portland, OR March 15-19, 2010 Contributed oral presentation: Evolution of the absolute value of the London penetration depth in single crystals of Ba(Fe 1 x Co x ) 2 As 2 upon cobalt doping 7) Prairie Section of the American Physical Society (PSAPS) Inaugural Meeting University of Iowa, Iowa City, IA November 12-14, 2009 Poster presentation: The Determination of λ ab (0) in Ba(Fe 1 x Co x ) 2 As 2 from Tunnel Diode Resonator Measurements 8) International Center for Materials Research (ICMR) Summer School on Novel Superconductors University of California, Santa Barbara, CA August 2-15, 2009 Poster presentation: The London penetration depth in single crystals of iron-based pnictide superconductors

6 9) International Workshop on the Search for New Superconductors-Frontier and Future Shonan Village Center, Kanagawa, Japan May 12-16, 2009 Poster presentation: Precision Measurements of the London Penetration Depth in Single Crystals of Ba(Fe 1 x Co x ) 2 As 2 and (Ba 1 x K x )Fe 2 As 2 10) APS 2009 March Meeting Pittsburgh, PA March 16-20, 2009 Contributed oral presentation: Co-concentration dependence of the London penetration depth in single crystals of Ba(Fe 1 x Co x ) 2 As 2 11) APS 2008 March Meeting New Orleans, LA March 10-14, 2008 Contributed oral presentation: Unconventional superconductivity in Lu 2 Fe 3 Si 5 12) APS 2005 March Meeting Los Angeles, CA March 21-25, 2005 Poster presentation: Raman mode softening of superconducting MgB 2 13) APS 2003 March Meeting Austin, TX March 3-7, 2003 Poster presentation: Axial and circumferential hysteresis studies of magnetic torque transducers