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Publications

Multiferroics

  • “Linear and nonlinear optical properties of BiFeO3”, A. Kumar, R. C. Rai, N. J. Podraza, S. Denev, M. Ramirez, Y. H. Chu, L. W. Martin, J. Ihlefeld, T. Heeg, J. Schubert, D. G. Schlom, J. Orenstein, R. Ramesh, R. W. Collins, J. L. Musfeldt, V. Gopalan, Applied Physics Letters 92, 121915 (2008).

  • “Two-phonon coupling to the antiferromagnetic phase transition in multiferroic BiFeO3”, M. O. Ramirez, M. Krishnamurthi, S. Denev, A. Kumar, S. Y. Yang, Y. H. Chu, E. Saiz, J. Seidel, A. P. Pyatakov, A. Bush, D. Viehland, J. Orenstein, R. Ramesh, V. Gopalan, Applied Physics Letters 92, 022511 (2008).
  • “Adsorption-controlled molecular-beam epitaxial growth of BiFeO3”, J. Ihlefeld, A. Kumar, V. Gopalan, D. G. Schlom, Y. B. Chen, X. Q. Pan, T. Heeg, J. Schubert, X. Ke, P. Schiffer, J. Orenstein, L. W. Martin, Y. H. Chu, R. Ramesh, Applied Physics Letters 91, 071922 (2007)

Spin-propagation via transient gratings

  • "Non-diffusive spin dynamics in a two-dimensional electron gas",C. P. Weber, J. Orenstein, B. A. Bernevig, S.-CC. Zhang, Jason Stephens, and D. D. Awschalom, Phys. Rev. Lett. 98, 076604 (2007)
  • "Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System", B. A. Bernevig, J. Orenstein, and S.-C. Zhang Phys. Rev. Lett. 97, 236601 (2006).
  • "Observation of spin Coulomb drag in a two-dimensional electron gas" C. P. Weber, N. Gedik, J. Orenstein, J. Stephens, and D. D. Awschalom, Nature 437, 1330 (2005).

High temperature superconductivity and correlated electron materials

  • "Superconducting fluctuations in Bi2Sr2Ca1-x DyxCu2O8+d as seen by terahertz spectroscopy", J. Orenstein, J. Corson, S. Oh, and J. N. Eckstein, Annalen der Physik 15 (7-8), 596-605 (2006).
  • "Abrupt transition in quasiparticle dynamics at optimal doping in a cuprate superconductor system" N. Gedik, M. Langner, J. Orenstein, S. Ono, Yasushi Obe, and Yoichi Ando, Phys. Rev. Lett. 95, 117005 (2005)
  • "Transient gratings formed by nonequilibrium quasiparticles in YBCO", N. Gedik, J. Orenstein, Ruixing Liang, D.A. Bonn, and W. N. Hardy, Journal of Superconductivity 17–(1): 117-120, (2004).
  • "Non-equilibrium quasiparticle dynamics in single crystals of YBCO Ortho II." N. Gedik, J. Orenstein, Ruixing Liang, D.A. Bonn, and W.N. Hardy, Physica C 408-410, 690 (2004).
  • "Absolute phase measurement in heterodyne detection of transient gratings" N. Gedik, J. Orenstein, Optics Letters 29, 2109 (2004)
  • "Single-quasiparticle stability and quasiparticle-pair decay in YBa2Cu3O6.5" N. Gedik, P. Blake, R.C. Spitzer, J. Orenstein, R.X. Liang, D.A. Bonn, and W. Hardy, Physical Review B70, 014504 (2004) 
  • "Diffusion of nonequilibrium quasi-particles in a cuprate superconductor" , N. Gedik, J. Orenstein, Ruixing, Liang, D.A. Bonn, and W.N. Hardy, Science 300, 1410 (2003)
  • "Photoinduced changes in reflectivity in single crystals of YBa2Cu3O6.5" G.P. Segre, N. Gedik, J. Orenstein, D.A. Bonn, R. Liang, and W.N. Hardy, Phys. Rev. Lett. 88, 137001 (2002)
  • "Nodal Quasiparticle Lifetime in the Superconducting State of Bi2Sr2CaCu2O8+d", J. Corson, J. Orenstein, S. Oh, J. O'Donnell, and J. N. Eckstein, Phys. Rev. Lett. 85, 2569 (2000) 
  • "Low-Frequency Crossover of the Fractional Power-Law Conductivity in SrRuO3" J. S. Dodge, C. P. Weber, J. Corson, J. Orenstein, Z. Schlesinger, J. W. Reiner, and M. R. Beasley Phys. Rev. Lett. 85, 4932 (2000)
  • "Vanishing of phase coherence in Bi2Sr2CaCu2O8+d" J. Corson, J. Orenstein, S. Oh, and J.N. Eckstein, Nature 398, 221 (1999)

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