Publications related to Local lattice distortions vs. structural phase transition in NdFeAsO1-xFx

The Interplay Between Structural and Electronic Degrees of Freedom in Superconductors

More than one hundred years after the discovery of superconductivity in Leiden, the intriguing physics of several unconventional classes of superconductors continue to fascinate and challenge scientists from all over the world. The majority of these compou ...

EPFL2013

Band structure effects on the superconductivity in Hubbard models

Ronny Thomale

We study the influence of the band structure on the symmetry and superconducting transition temperature in the (solvable) weak-coupling limit of the repulsive Hubbard model. Among other results we find that (1) as a function of increasing nematicity, start ...

Amer Physical Soc2013

On field effect studies and superconductor-insulator transition in high-Tc cuprates

Davor Pavuna, Guy Joseph Günter Dubuis, Ivan Bozovic

We summarize previous field effect studies in high-T (c) cuprates and then discuss our method to smoothly tune the carrier concentration of a cuprate film over a wide range using an applied electric field. We synthesized epitaxial one-unit-cell thick films ...

Springer Berlin Heidelberg2013

Pr4Fe2As2Te1-xO4: A layered FeAs-based superconductor

László Forró, Richard Gaal, Janusz Andrzej Karpinski, Andrea Pisoni, Sergiy Katrych

We report crystal growth at high pressure, structure determination, and magnetic and transport studies of an oxypnictide superconductor Pr4Fe2As2Te1-xO4. Its structure resembles the known 1111 phase except for the considerably larger c lattice constant and ...

Amer Physical Soc2013

Critical Resistance at the Superconductor-Insulator Transition in Hole-Doped Cuprates

Davor Pavuna, Guy Joseph Günter Dubuis, Ivan Bozovic

Here, we show that in several p-type cuprates, the superconductor-to-insulator transition (SIT) occurs at the critical sheet resistance approximately equal to the quantum resistance of pairs, RQ=h/4

e^{2}

=6.5 kΩ. In a relatively broad range of temperature ...

Springer Verlag2013

Effect of Ca substitution on crystal structure and superconducting properties of ferromagnetic superconductor RuSr2-xCaxGd1.4Ce0.6Cu2O10-delta

Henrik Moodysson Rønnow, Mehdi Mazaheri, Neda Nikseresht Ghanepour

We have investigated the effect of Ca substitution for Sr site on structural, magnetic and superconducting properties of RuSr2-xCaxGd1.4Ce0.6Cu2O10-delta system. In this system, the magnetic coupling of RuO2 and CuO2 plays an important role in magnetic and ...

Elsevier2012

X-Treme beamline at SLS: X-ray magnetic circular and linear dichroism at high field and low temperature

Harald Brune, Stefano Rusponi, Jan Gui-Hyon Dreiser, Thomas Schmidt

X-Treme is a soft X-ray beamline recently built in the Swiss Light Source at the Paul Scherrer Institut in collaboration with Ecole Polytechnique Federale de Lausanne. The beamline is dedicated to polarization-dependent X-ray absorption spectroscopy at hig ...

Wiley-Blackwell2012

ARPES Studies of Cuprate and Pnictide Superconductors

Elia Razzoli

Since the discovery of cuprate superconductors in 1986, the subject of high temperature superconductivity has triggered a lot of scientific activity. Despite enormous efforts, the origin of high-temperature superconductivity is still the subject of intense ...

EPFL2012

Gaussian fluctuations in a cuprate superconductor

Johan Juul Chang

It is still unclear why the transition temperature Tc of cuprate superconductors falls with underdoping. The doping dependence of the critical magnetic field Hc2 is directly relevant to this question, but different estimates of Hc2 are in sharp contradicti ...

2011

Modeling and Characterization of Coated Conductors Applied to the Design of Superconducting Fault Current Limiters

François Roy

The Superconducting Fault Current Limiter (SFCL) appears to be a device of great interest to efficiently build the electrical grid of tomorrow. With the recent progress made by the superconducting wires manufacturers, there are needs coming from the indust ...

EPFL2010

Local lattice distortions vs. structural phase transition in NdFeAsO1-xFx

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The Interplay Between Structural and Electronic Degrees of Freedom in Superconductors

Band structure effects on the superconductivity in Hubbard models

On field effect studies and superconductor-insulator transition in high-Tc cuprates

Pr4Fe2As2Te1-xO4: A layered FeAs-based superconductor

Critical Resistance at the Superconductor-Insulator Transition in Hole-Doped Cuprates

Effect of Ca substitution on crystal structure and superconducting properties of ferromagnetic superconductor RuSr2-xCaxGd1.4Ce0.6Cu2O10-delta

X-Treme beamline at SLS: X-ray magnetic circular and linear dichroism at high field and low temperature

ARPES Studies of Cuprate and Pnictide Superconductors

Gaussian fluctuations in a cuprate superconductor

Modeling and Characterization of Coated Conductors Applied to the Design of Superconducting Fault Current Limiters

The Interplay Between Structural and Electronic Degrees of Freedom in Superconductors

Band structure effects on the superconductivity in Hubbard models

Pr4Fe2As2Te1-xO4: A layered FeAs-based superconductor

ARPES Studies of Cuprate and Pnictide Superconductors

Critical Resistance at the Superconductor-Insulator Transition in Hole-Doped Cuprates

Effect of Ca substitution on crystal structure and superconducting properties of ferromagnetic superconductor RuSr2-xCaxGd1.4Ce0.6Cu2O10-delta

Gaussian fluctuations in a cuprate superconductor

X-Treme beamline at SLS: X-ray magnetic circular and linear dichroism at high field and low temperature

On field effect studies and superconductor-insulator transition in high-Tc cuprates

Modeling and Characterization of Coated Conductors Applied to the Design of Superconducting Fault Current Limiters