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Optical conductivity group >
Publications
Publications
- Habilitations à Diriger des Recherches
- Thèses
- Papers [2009][2008][2007][2006] [2005] [2004] [2003] [2002] [2001] [2000] [1999] (For papers prior to 1999, you can contact Ricardo Lobo)
Habilitations à Diriger des Recherches
2005 (July 4) - Ricardo Lobo - Du Continu à l'Ultraviolet: Diffusion Elastique de la Lumière dans les Oxydes [in French - pdf file (4.7 MB)]
Thèses
- 2004 (September 17) - Alexandre Zimmers - Etude par Spectroscopie Infrarouge de l'Electrodynamique du Supraconducteur Pr2−xCexCuO4 et de la Manganite La2/3Ca1/3MnO3 [in French - pdf file (17.4 MB)]
- 2002 (January 25) - Andrès F. Santander-Syro - Electrodynamique dans l'état normal et supraconducteur de Bi2Sr2CaCu2O8+δ: Etude par spectroscopie infrarouge-visible [in French - pdf file (5.8 MB)]
Papers
[2009]
- Exchange boson dynamics in cuprates: Optical conductivity of HgBa2CuO4+δ, J. Yang, J. Hwang, E. Schachinger, J.P. Carbotte, R.P.S.M. Lobo, D. Colson, A. Forget, and T. Timusk, Phys. Rev. Letters 102, 027003 (4 pp.) (2009).
[2008]
- Multiple bosonic mode coupling in the charge dynamics of the electron-doped superconductor (Pr2-xCex)CuO4, E. Schachinger, C.C. Homes, R.P.S.M. Lobo, and J.P. Carbotte, Phys. Rev. B 78, 134522 (10 pp.) (2008).
- Metallic Nature of Strained Single-Crystal La2/3Sr1/3MnO3 Films, A.M. Haghiri-Gosnet, M. Kouba, A.F. Santander-Syro, R.P.S.M. Lobo, P. Lecoeur, B. Mercey, Phys. Rev. B 78, 115118 (5 pp.) (2008).
- Crystal structure, Raman spectroscopy, far-infrared, and microwave dielectric properties of (1-x)La(MgSn)0.5O3 - xNd(MgSn)0.5O3 system, G. Santosh Babu, V. Subramanian, V.R.K. Murthy, R.L. Moreira, and R.P.S.M. Lobo, J. Appl. Phys. 103, 084104 (7 pp.) (2008).
[2007]
- Optical Phonon Modes and Dielectric Behavior of Sr1−3x/2CexTiO3 Microwave Ceramics, R.L. Moreira, R.P.S.M. Lobo, G. Subodh, M.T. Sebastian, F.M. Matinaga, and A. Dias, Chem. Mat. 19, 6548-6554 (2007).
- Infrared phonon dynamics of multiferroic BiFeO3 single crystal, R.P.S.M. Lobo, R.L. Moreira, D. Lebeugle, and D. Colson, Phys. Rev. B 76, 172105 (4 pp.) (2007).
- Silicon beamsplitter for far-infrared and terahertz spectroscopy, C.C. Homes, G.L. Carr, R.P.S.M. Lobo, J.D. LaVeigne, and D.B. Tanner, Appl. Optics 46, pp. 7884-7888 (2007).
- Optical Spectroscopy as a Probe of Gaps and Kinetic Electronic Energy in p- and n-type cuprates, N. Bontemps, Physica C 460-462, pp. 162-165 (2007).
[2006]
- Optical determination of the superconducting energy gap in electron-doped Pr1.85Ce0.15CuO4, C.C. Homes, R.P.S.M. Lobo, P. Fournier, A. Zimmers, and R.L. Greene, Phys. Rev. B 74, 214515 (8 pp.) (2006).
- Temperature dependence of the spectral weight in p- and n-type cuprates: A study of normal state partial gaps and electronic kinetic energy, N. Bontemps, R.P.S.M. Lobo, A. F. Santander-Syro, and A. Zimmers, Ann. Phys. 321, 1547-1558 (2006).
- Time-Resolved Far-Infrared Studies of Superconducting Nb0.5Ti0.5N Film in a Magnetic Field, H. Zhang, H. Tashiro, R.P.S.M. Lobo, D.H. Reitze, C.J. Stanton, D.B. Tanner, and G.L. Carr, AIP Conf. Proc. 850, 981 (2006). From: Low Temperature Physics: 24th International Conference on Low Temperature Physics – LT24, Orlando, FL, 10-17 Aug. 2005.
[2005]
- Kinetic energy change with doping upon superfluid condensation in high temperature superconductors, G. Deutscher, A.F. Santander-Syro, and N. Bontemps, Phys. Rev. B 72, 092504 (3 pp.) (2005)
- Mott physics and the optical conductivity of electron-doped cuprates, A.J. Millis, A. Zimmers, R.P.S.M. Lobo, N. Bontemps, C.C. Homes, Phys. Rev. B 72, 224517 (13 pp.) (2005).
- Photoinduced time-resolved electrodynamics of superconducting metals and alloys, R.P.S.M. Lobo, J.D. LaVeigne, D.H. Reitze, D.B. Tanner, Z.H. Barber, E. Jacques, P. Bosland, M.J. Burns, and G.L. Carr, Phys. Rev. B 72, 024510 (10 pp.) (2005).
- Infrared properties of electron-doped cuprates: Tracking normal-state gaps and quantum critical behavior in Pr2−xCexCuO4, A. Zimmers, J.M. Tomczak, R.P.S.M. Lobo, N. Bontemps, C.P. Hill, M.C. Barr, Y. Dagan, R.L. Greene, A.J. Millis, and C.C. Homes, Europhys. Lett. 70, pp. 225-231 (2005).
- Optical conductivity spectra of conducting oxides including high-Tc cuprates, F. Gervais, Vinh Ta Phuoc, N. Poirot, C. Coquelet, G. Gruener, R.P.S.M. Lobo, Int. J. Mod. Phys. 19, 153-157 (2005). From: 5th International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials (New3SC-5), Chongqing, China.
- Interband scattering in MgB2, R.P.S.M. Lobo, M. Elsen, P. Monod, J.J. Tu, E.M. Choi, H.J. Kim, W. N. Kang, S.I. Lee, R.J. Cava, and G.L. Carr, New Challenges in Superconductivity: Experimental Advances and Emerging Theories, pp. 243-248. NATO Science Series II, Springer (2005).
- Optical properties of (Pr,Ce)2CuO4, A. Zimmers, N. Bontemps, R.P.S.M. Lobo, C.P. Hill, M.C. Barr, R.L. Greene, C.C. Homes, and A.J. Millis, New Challenges in Superconductivity: Experimental Advances and Emerging Theories, pp. 27-30. NATO Science Series II, Springer (2005). From: 2004 University of Miami Workshop on Unconventional Superconductivity, Ed. J. Ashkenazi, Miami, FL, 11-16 Jan. 2004.
- Sum rules and energy scales in BiSrCaCuO, A.F. Santander-Syro, R.P.S.M. Lobo, N. Bontemps, New Challenges in Superconductivity: Experimental Advances and Emerging Theories, pp. 21-26. NATO Science Series II, Springer (2005). From: 2004 University of Miami Workshop on Unconventional Superconductivity, Ed. J. Ashkenazi, Miami, FL, 11-16 Jan. 2004.
[2004]
- Infrared Signature of the Superconducting State in Pr2−xCexCuO4, A. Zimmers, R.P.S.M. Lobo, N. Bontemps, C.C. Homes, M.C. Barr, Y. Dagan, and R.L. Greene, Phys. Rev. B 70, 132502 (4 pp.) (2004).
- The in-plane electrodynamics of the superconductivity in Bi2Sr2CaCu2O8+δ: energy scales and spectral weight distribution, A.F. Santander-Syro, R.P.S.M. Lobo, N. Bontemps, W. Lopera, D. Giratá, Z. Konstantinovic, Z.Z. Li, and H. Raffy, Phys. Rev. B 70, 134514 (14 pp.) (2004).
- Iodine insertion in pentacene thin films investigated by infrared and Raman spectroscopy, M. Cazayous, A. Sacuto, G. Horowitz, Ph. Lang, A. Zimmers, and R.P.S.M. Lobo, Phys. Rev. B 70, 081309(R) (4 pp.) (2004).
- Transparent Conducting Oxides: Texture and Microstructure Effects on Charge Carrier Mobility in MOCVD-Derived CdO Thin Films Grown with A Thermally Stable, Low-Melting Precursor, A.W. Metz, J.R. Ireland, J.G. Zheng, R.P.S.M. Lobo, Y. Yang, J. Ni, C.L. Stern, V.P. Dravid, N. Bontemps, C.R. Kannewurf, K.R. Poeppelmeier, and T.J. Marks, J. Am Chem. Soc. 126, pp. 8477-8492 (2004).
- Reflectivity of optimally doped and underdoped Pr2−xCexCuO4−δ, A. Zimmers, R P.S.M. Lobo, N. Bontemps, C. P. Hill, and R. L. Greene, Physica C 408-410, pp. 748-749 (2004).
- Energy scales of the excitations associated with superconductivity: an analysis of the infrared–visible in-plane response of Bi2Sr2CaCu2O8+δ, A.F. Santander-Syro, R.P.S.M. Lobo, N. Bontemps, Z. Konstantinovic, Z. Z. Li and H. Raffy, Physica C 408-410, pp. 721-724 (2004).
[2003]
- Overdamped interlayer exchange coupling and disorder dominated magnetoresistance in La0.7Ca0.3MnO3/LaNiO3 superlattices, P. Padhan, R.C. Budhani and R.P.S.M. Lobo, Europhys. Lett. 63, pp. 771-777 (2003).
- Pairing in cuprates from high energy electronic states, A.F. Santander-Syro, R.P.S.M. Lobo, N. Bontemps, Z. Konstantinovic, Z.Z. Li and H. Raffy; Europhys. Lett. 62, pp. 568-574 (2003).
- Electric-field-tuned metallic fraction and dynamic percolation in a charge-ordered manganite, N. K. Pandey, R. P. S. M. Lobo and R. C. Budhani; Phys. Rev. B 67, 054413 (4 pp.) (2003).
- Non-linear infrared properties of InAs/GaAs self-assembled quantum dots, S. Sauvage, P. Boucaud, T. Brunhes, F. Bras, G. Fishman, F. Glotin, R. Prazeres, J.M. Ortega, J.M. Gérard, M. Broquier, C. Crépin, R.P.S.M. Lobo, Nucl. Instr. Meth. Phys. Res. A 507, 569–571 (2003).
- Polaron relaxation in InAs/GaAs self-assembled quantum dots, S. Sauvage, P. Boucaud, F. Bras, G. Fishman, R. P. S. M. Lobo, F. Glotin, R. Prazeres, J.M. Ortega, Phys. Stat. Sol. (b) 238, pp. 254–257 (2003).
[2002]
- Long unipolar electronic relaxation time in InAs/GaAs self-assembled quantum dots, S. Sauvage, P. Boucaud, R.P.S.M. Lobo, F. Bras, G. Fishman, F. Glotin, J. M. Ortega and J.M. Gérard; Phys. Rev. Lett. 88, 177402 (4 pp.) (2002).
- Absence of a loss of in-plane infrared spectral weight in the pseudo-gap regime of Bi2Sr2CaCu2O8+δ, A.F. Santander-Syro, R.P.S.M. Lobo, N. Bontemps, Z. Konstantinovic, Z.Z. Li and H. Raffy; Phys. Rev. Letters 88, 097005 (4 pp.) (2002).
- Localization by disorder in the infrared conductivity of (Y,Pr)Ba2Cu3O7, R.P.S.M. Lobo, E. Ya. Sherman, D. Racah, Y. Dagan and N. Bontemps; Phys. Rev. B 65, 104509 (6 pp.) (2002).
- Electric- and magnetic-field-driven nonlinear charge transport and magnetic ordering in epitaxial films of Pr0.7Ca0.3−xSrxMnO3, R.C. Budhani, N.K. Pandey, P. Padhan, S. Srivastava and R.P.S.M.Lobo, Phys. Rev. B 65, 014429 (10 pp.) (2002).
- Sub nanosecond time resolved broad band infrared spectroscopy using synchrotron radiation, R.P.S.M. Lobo, J.D. LaVeigne, D.H. Reitze, D.B. Tanner and G.L. Carr; Rev. Sci. Instrum. 73, pp. 1-10 (2002).
- Energy scales of the excitations associated with superconductivity: an analysis of the infrared and visible in-plane response of Bi2Sr2CaCu2O8+δ, A. F. Santander-Syro, R. P. S. M. Lobo, N. Bontemps, Z. Konstantinovic, Z. Z. Li and H. Raffy, SPIE Superconducting and Related Oxides: Physics and Nanoengineering V Proc., Vol. 4811, pp. 48-59 (2002). From: Superconducting and Related Oxides: Physics and Nanoengineering V, Ed. I. Bozovic, D. Pavuna, Seattle, WA, USA, 8-11 July 2002.
[2001]
- Pseudo-gap and superconducting condensate energies in the infrared spectra of Pr doped YBa2Cu3O7, R.P.S.M. Lobo, N. Bontemps, D. Racah, Y. Dagan and G. Deutscher, Europhys. Lett. 55, pp. 854-860 (2001).
- Observation of Coherent Synchrotron Radiation from the NSLS VUV Ring; G.L. Carr, S.L. Kramer, J.B. Murphy, R.P.S.M. Lobo, and D.B. Tanner, Nucl. Instr. Meth. Phys. Res. A 463, pp. 387-392 (2001).
[2000]
- Exploring the dynamics of superconductors by time-resolved far-infrared spectroscopy, G.L. Carr, R.P.S.M. Lobo, J. LaVeigne, D.H. Reitze, and D.B. Tanner; Phys. Rev. Letters 85, pp. 3001-3004 (2000).
- Optical conductivity of high-Tc cuprate thin films deposited by multi-target laser ablation, S. Pessaud, F. Gervais, D. de Sousa, R. Lobo, C. Champeaux, P. Marchet, A. Catherinot, J.L. Longuet, and F. Ravel; J Phys.: Condens. Matter 12, pp. 1517-1525 (2000).
- Infrared reflectivity spectra of underdoped and optimally doped Bi2Sr2CaCu2O8+δ thin films, A. F. Santander-Syro, R.P.S.M. Lobo, Z. Konstantinovic, Z.Z. Li, H. Raffy, and N. Bontemps, Physica C 341-348, pp. 915-916 (2000).
[1999]
- Performance of new infrared beamline U12IR at the National Synchrotron Light Source, R.P.S.M. Lobo, J.D. LaVeigne, D.H. Reitze, D.B. Tanner and G.L. Carr, Rev. Sci. Instrum. 70, pp. 2899-2904 (1999).
- Time-Resolved Infrared Spectroscopy on the U12IR Beamline at the NSLS, J.D. LaVeigne, G.L. Carr, R.P.S.M. Lobo, D.H. Reitze, and D.B. Tanner; SPIE Accelerator-Based Infrared Sources and Spectroscopic Applications Proc. Vol. 3775, pp. 128-136 (1999).
- Evidence for millimeter-wave coherent emission from the NSLS VUV ring, G.L. Carr, R.P.S.M. Lobo, J.D. LaVeigne, D.H. Reitze, D.B. Tanner, S.L. Kramer, and J.B. Murphy, SPIE Accelerator-Based Infrared Sources and Spectroscopic Applications Proc. Vol. 3775, pp. 88-95 (1999).
- Investigation of coherent emission from the NSLS-VUV ring, G.L. Carr, S.L. Kramer, J.B. Murphy, J.D. LaVeigne, R.P.S.M. Lobo, D.H. Reitze and D.B. Tanner; Proc. of the 1999 Particle Accelerator Conference Vol. 1, pp. 134-136, New York (1999).
