0000000000524598

AUTHOR

Martin Schneider

showing 3 related works from this author

Transcatheter radiofrequency perforation and stent implantation for palliation of pulmonary atresia in a 3060-g infant

1995

In a 3060-g infant with fibromuscular pulmonary atresia an open right ventricular outflow tract was created by means of interventional cardiological methods. Following two inadvertent perforations without sequelae or clinical symptoms, radiofrequency perforation and subsequent balloon dilatation were successfully performed. The implantation of a Palmaz iliac stent led to a predictable communication between the right ventricle and pulmonary artery.

Heart Septal Defects VentricularCardiac Catheterizationmedicine.medical_specialtymedicine.medical_treatmentPerforation (oil well)Coronary Angiographymedicine.arterymedicineHumansVentricular outflow tractmedicine.diagnostic_testbusiness.industryInfant NewbornStentmedicine.diseaseSurgerymedicine.anatomical_structureEchocardiographyPulmonary AtresiaVentricleAtresiaAngiographyPulmonary arteryCatheter AblationFemaleStentsRadiologyCardiology and Cardiovascular MedicinePulmonary atresiabusinessCatheterization and Cardiovascular Diagnosis
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Tuning the Pseudospin Polarization of Graphene by a Pseudomagnetic Field.

2016

One of the intriguing characteristics of honeycomb lattices is the appearance of a pseudo-magnetic field as a result of mechanical deformation. In the case of graphene, the Landau quantization resulting from this pseudo-magnetic field has been measured using scanning tunneling microscopy. Here we show that a signature of the pseudo-magnetic field is a local sublattice symmetry breaking observable as a redistribution of the local density of states. This can be interpreted as a polarization of graphene's pseudospin due to a strain induced pseudo-magnetic field, in analogy to the alignment of a real spin in a magnetic field. We reveal this sublattice symmetry breaking by tunably straining grap…

STM: Physics [G04] [Physical chemical mathematical & earth Sciences]FOS: Physical sciencesBioengineering02 engineering and technology01 natural sciencespseudospin polarizationlaw.inventionstrainlaw0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)valley filterGeneral Materials ScienceSymmetry breaking010306 general physicsPhysicsLocal density of statesCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsGrapheneMechanical EngineeringgrapheneObservableGeneral ChemistryLandau quantization021001 nanoscience & nanotechnologyCondensed Matter PhysicsPolarization (waves)Magnetic field: Physique [G04] [Physique chimie mathématiques & sciences de la terre]pseudomagnetic fieldScanning tunneling microscope0210 nano-technologyNano letters
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Magnetic states in low-pinning high-anisotropy material nanostructures suitable for dynamic imaging

2013

We present magnetic domain states in a material configuration with high (perpendicular) magnetic anisotropy and particularly low magnetic pinning. This material, a B-doped Co/Pt multilayer configuration, exhibits a strong magnetic contrast in x-ray transmission experiments, making it apt for dynamic imaging with modern synchrotron techniques, providing high spatial and high temporal resolution simultaneously. By analyzing the static spin structures in nanodisks at variable external fields, we show that CoB/Pt multilayers exhibit low enough domain wall pinning to manipulate the domain pattern with weak stimuli and in particular to move domains and domain walls. We demonstrate in a proof-of-p…

Magnetization dynamicsMaterials scienceCondensed matter physicsMagnetic domain530 Physicsbusiness.industry02 engineering and technology530 Physik021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesElectronic Optical and Magnetic MaterialsMagnetic fieldMagnetic anisotropyDomain wall (magnetism)Optics0103 physical sciencesddc:530Single domain010306 general physics0210 nano-technologyAnisotropybusinessSpin-½Phys. Rev. B 87, 134422
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