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Dive into the research topics where Simon Rast is active.

Publication


Featured researches published by Simon Rast.


Superconducting and Related Oxides: Physics and Nanoengineering V | 2002

Femtosecond optical studies of cuprates

M. L. Schneider; Simon Rast; M. Onellion; J. Demsar; Antoinette J. Taylor; Yu. D. Glinka; N. H. Tolk; Y. H. Ren; Gunter Luepke; Andrii Klimov; Ying Xu; Roman Sobolewski; Weidong Si; X. H. Zeng; A. Soukiassian; Xiaoxing Xi; M. Abrecht; D. Ariosa; Davor Pavuna; Recardo Manzke; J. O. Printz; D. K. Parkhurst; K. E. Downum; Prasenjit Guptasarma; Ivan Bozovic

Femtosecond optical reflectivity measurements of La2-xSrxCuO4, La2CuO4+y, Bi2Sr2CuO6+z and Bi2Sr2CaCu2O8+δ thin films and single crystal samples indicate qualitative changes with fluence. At the lowest fluencies, there is a power law divergence in the relaxation time. The divergence has an onset temperature of 55±15K, independent of whether the sample is in the superconducting or normal states. At slightly higher fluencies, still perturbative, the additional response does not exhibit this power law divergence. At quite high fluencies- no longer perturbative- the metallic samples exhibit oscillations in the reflectivity amplitude. The period of these oscillations varies with the probe wavelength but not with the pump wavelength. The oscillations exhibit a decay time as long as 10 nsec.


EPL | 2002

Ultrafast carrier relaxation dynamics in single-layer cuprates

M. L. Schneider; J. Demsar; Yu. D. Glinka; A. Klimov; A. Krapf; Simon Rast; Y. H. Ren; Weidong Si; Ying Xu; X. H. Zeng; Ivan Bozovic; G. Lüpke; Recardo Manzke; Roman Sobolewski; A. T. Taylor; N. H. Tolk; Xiaoxing Xi; Robert Joynt; M. Onellion


EPL | 2000

Temperature-dependent photoemission features for overdoped Bi2Sr2CaCu2O8+x cuprates

Simon Rast; Bradley H. Frazer; M. Onellion; T. Schmauder; M. Abrecht; O. Touzelet; H. Berger; G. Margaritondo; D. Pavuna


Physical Review B | 2001

Evidence for two coupled subsystems in the superconducting state of La2-xSrxCuO4

Simon Rast; Michael L. Schneider; M. Onellion; X. H. Zeng; Weidong Si; Xiaoxing Xi; Mike Abrecht; D. Ariosa; Davor Pavuna; Y. H. Ren; G. Lüpke; I. Perakis


European Physical Journal B | 2003

Carrier relaxation time divergence in single and double layer cuprates

M. L. Schneider; Simon Rast; M. Onellion; J. Demsar; Antoinette J. Taylor; Yu. D. Glinka; N. H. Tolk; Y. H. Ren; G. Lüpke; A. Klimov; Ying Xu; R. Sobolewski; Weidong Si; X. H. Zeng; A. Soukiassian; Xiaoxing Xi; M. Abrecht; D. Ariosa; D. Pavuna; A. Krapf; R. Manzke; J. O. Printz; M. S. Williamsen; K. E. Downum; Prasenjit Guptasarma; I. Bozovic


European Physical Journal B | 2001

Electronic and magnetic properties of ruthenocuprates

B.H. Frazer; Y. Hirai; M. L. Schneider; Simon Rast; M. Onellion; I. Nowik; I. Felner; Sunando Roy; Naushad Ali; A. Reginelli; L. Perfetti; D. Ariosa; G. Margaritondo


Archive | 2002

Low and high fluence femtosecond optical studies of cuprates

Michael L. Schneider; Simon Rast; Marshall Franklin Onellion; J. Demsar; Antoinette J. Taylor; Yu. D. Glinka; N. H. Tolk; Yuhang Ren; G. Lüpke; Andrei B. Klimov; Ying Xu; Roman Sobolewski; Weidong Si; X. H. Zeng; A. Soukiassian; Xiaoxing Xi; Mike Abrecht; D. Ariosa; Davor Pavuna; R. Manzke; J. O. Printz; D. K. Parkhurst; K. E. Downum; Prasenjit Guptasarma; Ivan Bozovic


Archive | 2001

Magnetic and electronic properties of ruthenocuprates

Yuka Hirai; M. L. Schneider; Bradley H. Frazer; Simon Rast; Marshall Franklin Onellion; U. Asaf; I. Felner; Israel Nowik; Naushad Ali; Sujoy B. Roy; M. Prester; D. Drobac; Ivica Zivkovic; Luca Perfetti; Alessandra Reginelli; D. Ariosa; G. Margaritondo


Archive | 2001

Dynamical optical properties of La2-xSrxCuO4 cuprates

Michael L. Schneider; Simon Rast; Marshall Franklin Onellion; Yuhe Ren; X.-Z. Zhang; Gunter Luepke; Ilias Eleftheriou Perakis; M. Abrecht; D. Ariosa; Davor Pavuna; X. H. Zeng; Weidong Si; Xiaoxing Xi


Archive | 2000

Angle-integrated photoemission studies of ruthocuprate Eu_2-xCe_xRuSr_2Cu_2O_10, Gd_2RuSr_2Cu_2O_10 and Eu_1.5Nb_1-xRu_xCu_2O_10 systems

Bradley H. Frazer; Yuka Hirai; Simon Rast; I. Felner; U. Asaf; Marshall Franklin Onellion

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Bradley H. Frazer

University of Wisconsin-Madison

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M. Onellion

University of Wisconsin-Madison

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Weidong Si

Pennsylvania State University

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Xiaoxing Xi

Pennsylvania State University

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D. Ariosa

École Polytechnique Fédérale de Lausanne

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M. L. Schneider

University of Wisconsin-Madison

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Davor Pavuna

École Polytechnique Fédérale de Lausanne

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G. Margaritondo

École Polytechnique Fédérale de Lausanne

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