Publications related to Inhomogeneity of charge-density-wave order and quenched disorder in a high-T-c superconductor

Electronic Transport in Graphene with Aggregated Hydrogen Adatoms

Oleg Yazyev, Gabriel Albert Autes, Fernando Gargiulo, Naunidh Singh Virk

Hydrogen adatoms and other species covalently bound to graphene act as resonant scattering centers affecting the electronic transport properties and inducing Anderson localization. We show that attractive interactions between adatoms on graphene and their ...

American Physical Society2014

Competing charge, spin, and superconducting orders in underdoped YBa2Cu3Oy

Johan Juul Chang

To explore the doping dependence of the recently discovered charge-density-wave (CDW) order in YBa2Cu3Oy, we present a bulk-sensitive high-energy x-ray study for several oxygen concentrations, including strongly underdoped YBa2Cu3O6.44. Combined with previ ...

Amer Physical Soc2014

New Anomalous Lieb-Robinson Bounds in Quasiperiodic XY Chains

Marius Christopher Lemm

We announce and sketch the rigorous proof of a new kind of anomalous (or sub-ballistic) Lieb-Robinson (LR) bound for an isotropic XY chain in a quasiperiodic transversal magnetic field. Instead of the usual effective light cone |x|≤v|t|, we obtain |x|≤v|t| ...

2014

Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation

Janusz Andrzej Karpinski, Sergiy Katrych, Yihan Jia

Iron-based superconductors could be useful for electricity distribution and superconducting magnet applications because of their relatively high critical current densities and upper critical fields. SmFeAsO0.8F0.15 is of particular interest as it has the h ...

Nature Publishing Group2013

The Interplay Between Structural and Electronic Degrees of Freedom in Superconductors

Mathieu Julien Gino Cottet

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

Conventional superconductivity and hysteretic Campbell penetration depth in single crystals MgCNi3

Sergiy Katrych

Single crystals of MgCNi3, with areas sized up to 1 mm(2), were grown by the self-flux method using a cubic anvil high-pressure technique. In low applied fields, the dc magnetization exhibited a very narrow transition into the superconducting state, demons ...

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

Electric field effect on superconductivity in $La_{2-x}$$Sr_{x}$$CuO_{4}$

Davor Pavuna, Guy Joseph Günter Dubuis, Ivan Bozovic

We demonstrate a method to tune the carrier concentration of a high temperature superconductor over a wide range, using an applied electric field. Thin film devices were made in an electrical double layer transistor configuration utilizing an ionic liquid. ...

American Institute of Physics2012

Atomic-Layer Engineering of Oxide Superconductors

Davor Pavuna, Guy Joseph Günter Dubuis, Ivan Bozovic

Molecular beam epitaxy technique has enabled synthesis of atomically smooth thin films, multilayers, and superlattices of cuprates and other complex oxides. Such heterostructures show high temperature superconductivity and enable novel experiments that pro ...

2012

Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3O6.67

Joël Mesot, Johan Juul Chang

Superconductivity often emerges in the proximity of, or in competition with, symmetry-breaking ground states such as antiferromagnetism or charge density waves(1-5) (CDW). A number of materials in the cuprate family, which includes the high transition-temp ...

Nature Publishing Group2012

Inhomogeneity of charge-density-wave order and quenched disorder in a high-T-c superconductor

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Electronic Transport in Graphene with Aggregated Hydrogen Adatoms

Competing charge, spin, and superconducting orders in underdoped YBa2Cu3Oy

New Anomalous Lieb-Robinson Bounds in Quasiperiodic XY Chains

Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation

The Interplay Between Structural and Electronic Degrees of Freedom in Superconductors

Conventional superconductivity and hysteretic Campbell penetration depth in single crystals MgCNi3

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

Electric field effect on superconductivity in $La_{2-x}$$Sr_{x}$$CuO_{4}$

Atomic-Layer Engineering of Oxide Superconductors

Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3O6.67

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

Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3O6.67

Electronic Transport in Graphene with Aggregated Hydrogen Adatoms

Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation

Competing charge, spin, and superconducting orders in underdoped YBa2Cu3Oy

New Anomalous Lieb-Robinson Bounds in Quasiperiodic XY Chains

The Interplay Between Structural and Electronic Degrees of Freedom in Superconductors

Conventional superconductivity and hysteretic Campbell penetration depth in single crystals MgCNi3

Electric field effect on superconductivity in $La_{2-x}$$Sr_{x}$$CuO_{4}$

Atomic-Layer Engineering of Oxide Superconductors