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Mon, 05/27/2013 - 12:30

Susanne Butz, Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany.
- 12:30
- D3-2040
- Title: A Tunable Josephson Metamaterial
  
  Abstract: We present experimental data on a tunable magnetic metamaterial consisting of rf-SQUIDs. A metamaterial is a medium constructed of artifical elements, so- called meta-atoms, that interact in a specific way with an incoming electromagnetic wave. The size of and the distance between the individual meta-atoms is much smaller than the wavelength. Our metamaterial consists of one-dimensional arrays of 27 rf-SQUIDs, one chain placed inside each of the gaps of a coplanar waveguide. Due to the nonlinear inductance of the rf-SQUID, its resonance frequency is tunable in situ by applying a dc magnetic field. We demonstrate that this results in tunable effective parameters of our metamaterial. In order to obtain the effective magnetic permeability from the measured data, we employ a technique that uses only the complex transmission coefficient S21.
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Mon, 06/03/2013 - 12:30

Bhaskar Roy Bardhan, Department of Physics and Astronomy, Louisiana State University
- 12:30
- D3-2040
- To be annonced
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Wed, 06/05/2013 - 10:45

INTRIQ : Lilian Childress, McGill
- 10:45
- D1-2165
- Title: Spins and photons: toward quantum networks in diamond
  
  Abstract: Long-lived electronic and nuclear spin states have made nitrogen-vacancy (NV) defects in diamond a leading candidate for solid-state quantum information processing. Moreover, their coherent optical transitions open opportunities for quantum communication. This talk will consider the motivation and requirements for optically-networked quantum devices, and explore challenges and opportunities for realizing them in diamond. In particular, the resonant excitation and emission in these defect centers enables single shot spin detection as well as observation of two-photon quantum interference; these two capabilities have enabled measurement-based entanglement between remote NV centers.
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Mon, 06/10/2013 - 12:30

Frank Verstraete , Université de Vienne
- 12:30
- D3-2040
- To be announced
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Tue, 06/11/2013 - 00:00

Wolfgang Belzig, l'Université de Constance, Allemagne
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aluminium compounds

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

Bilayer

C.B., Côté R, Fertig HA. 2006. Pseudospin solitons in the coherent stripe phase of a bilayer quantum Hall system. Physica E. 34:85–88.

cobalt compounds

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

Complexity

Poulin D, Wocjan P. 2009. Preparing ground states of quantum many-body systems on a quantum computer. Physical Review Letters. 102:130503. Abstract

Composite

Gautreau O, Harnagea C, Gunawan L, Nechache R, Singh MP, Fournier P, Botton GA, Pignolet A. 2009. Piezoresponse force microscopy and magnetic force microscopy characterization of [gamma]-Fe2O3-BiFeO3 nanocomposite/Bi3.25La0.75Ti3O12 multiferroic bilayers. Journal of Magnetism and Magnetic Materials. 321:1799-1802.

electron spin polarisation

Bourassa J, Roostaei B, Côté R, Fertig HA, Mullen K. 2006. Pseudospin vortex-antivortex states with interwoven spin textures in double-layer quantum Hall systems. Physical Review B (Condensed Matter and Materials Physics). 74:195320.

Electron-doped superconductor

Maiser E, Fournier P, Peng J-L, Araujo-Moreira FM, Venkatesan T, Greene RL, Czjzek G. 1998. Pulsed-laser deposition of Pr2-xCexCuO4-y thin films and the effect of high-temperature post-annealing. Physica C: Superconductivity. 297:15-22.

ferromagnetic materials

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

gallium arsenide

Savard S, Allard J-F, Bernier M, Petersen JC, Dodge JS, Fournier P, Morris D. 2010. Photoexcited carrier relaxation dynamics and terahertz response of photoconductive antennas made on proton bombarded GaAs materials. Journal of Applied Physics. 108:124507.

HF calculations

Bourassa J, Roostaei B, Côté R, Fertig HA, Mullen K. 2006. Pseudospin vortex-antivortex states with interwoven spin textures in double-layer quantum Hall systems. Physical Review B (Condensed Matter and Materials Physics). 74:195320.

III-V semiconductors

Savard S, Allard J-F, Bernier M, Petersen JC, Dodge JS, Fournier P, Morris D. 2010. Photoexcited carrier relaxation dynamics and terahertz response of photoconductive antennas made on proton bombarded GaAs materials. Journal of Applied Physics. 108:124507.

lanthanum compounds

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

magnetic structure

Bourassa J, Roostaei B, Côté R, Fertig HA, Mullen K. 2006. Pseudospin vortex-antivortex states with interwoven spin textures in double-layer quantum Hall systems. Physical Review B (Condensed Matter and Materials Physics). 74:195320.

magnetic thin films

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

magnetic transition temperature

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

magnetisation

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

magnetoelectric effects

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

manganese compounds

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

multiferroics

Singh MP, Truong KD, Jandl S, Fournier P. 2010. Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La[sub 3]BAlMnO[sub 9] (B = Co or Ni) triple perovskites. Journal of Applied Physics. 107:09D916.

nuclear magnetic resonance

Bourassa J, Roostaei B, Côté R, Fertig HA, Mullen K. 2006. Pseudospin vortex-antivortex states with interwoven spin textures in double-layer quantum Hall systems. Physical Review B (Condensed Matter and Materials Physics). 74:195320.

photoconducting devices

Savard S, Allard J-F, Bernier M, Petersen JC, Dodge JS, Fournier P, Morris D. 2010. Photoexcited carrier relaxation dynamics and terahertz response of photoconductive antennas made on proton bombarded GaAs materials. Journal of Applied Physics. 108:124507.

photoconducting materials

Savard S, Allard J-F, Bernier M, Petersen JC, Dodge JS, Fournier P, Morris D. 2010. Photoexcited carrier relaxation dynamics and terahertz response of photoconductive antennas made on proton bombarded GaAs materials. Journal of Applied Physics. 108:124507.

photoexcitation

Savard S, Allard J-F, Bernier M, Petersen JC, Dodge JS, Fournier P, Morris D. 2010. Photoexcited carrier relaxation dynamics and terahertz response of photoconductive antennas made on proton bombarded GaAs materials. Journal of Applied Physics. 108:124507.

quantum Hall effect

Bourassa J, Roostaei B, Côté R, Fertig HA, Mullen K. 2006. Pseudospin vortex-antivortex states with interwoven spin textures in double-layer quantum Hall systems. Physical Review B (Condensed Matter and Materials Physics). 74:195320.

Quantum Hall effects

C.B., Côté R, Fertig HA. 2006. Pseudospin solitons in the coherent stripe phase of a bilayer quantum Hall system. Physica E. 34:85–88.

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