Search Results - "Friedemann, Sven"
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Existence and stability of skyrmion bags in thin magnetic films
Published in Applied physics letters (13-01-2020)“…Skyrmion bags are spin textures of any integer topological degree, realized in micromagnetic simulations and experimentally in liquid crystals. They have been…”
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Fermi-surface collapse and dynamical scaling near a quantum-critical point
Published in Proceedings of the National Academy of Sciences - PNAS (17-08-2010)“…Quantum criticality arises when a macroscopic phase of matter undergoes a continuous transformation at zero temperature. While the collective fluctuations at…”
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Thermal and electrical transport across a magnetic quantum critical point
Published in Nature (London) (26-04-2012)“…The heavy-fermion compound YbRh 2 Si 2 possesses a quantum critical point, at which the standard theory of electron behaviour in metals is expected to break…”
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Transport evidence for decoupled nematic and magnetic criticality in iron chalcogenides
Published in Communications physics (22-04-2022)“…Electronic nematicity in correlated metals often occurs alongside another instability such as magnetism. The question thus remains whether nematicity alone can…”
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Mutual stabilization of charge-density-wave and monoclinic distortion in sulfur at high pressures
Published in Physical review research (01-11-2023)“…The charge-density-wave (CDW) amplitude mode of the high-pressure sulfur-IV phase is observed between 83 and 146 GPa using Raman spectroscopy. The energy of…”
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Electronic structure of LuRh2Si2: 'small' Fermi surface reference to YbRh2Si2
Published in New journal of physics (10-09-2013)“…We present band structure calculations and quantum oscillation measurements on LuRh2Si2, which is an ideal reference to the intensively studied quantum…”
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Anisotropic Zeeman Splitting in YbNi4P2
Published in SciPost physics (01-11-2018)“…The electronic structure of heavy-fermion materials is highly renormalised at low temperatures with localised moments contributing to the electronic excitation…”
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Pressure and field tuning in the Kondo lattice ferromagnet CeAgSb2
Published in physica status solidi (b) (01-03-2013)“…The intermetallic compound CeAgSb2 is an unusual example of a ferromagnetically ordered Kondo lattice system. Ferromagnetism sets in below the Curie…”
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LuRh2Si2: Sensitivity of the Fermi surface to the Si z-position
Published in physica status solidi (b) (01-03-2013)“…We present band structure calculations of the non‐magnetic compound LuRh2Si2 which serves as a reference for YbRh2Si2, a prototypical material for the…”
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Fermi Surface Reconstruction and Electron Dynamics at the Charge-Density-Wave Transition in TiSe2
Published in Physical review letters (24-04-2020)“…The evolution of the charge carrier concentrations and mobilities are examined across the charge-density-wave (CDW) transition in TiSe2. Combined quantum…”
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Effects of ferromagnetic & carbon-fibre Z-Pins on the magnetic properties of composites
Published in Composites science and technology (03-05-2021)“…This paper investigates for the first time the effects of Z-pins on the magnetic properties of composite laminates. In-plane and out-of-plane M-H curves of…”
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Possible Raman signature of broken symmetry states near the quantum critical point in P doped BaFe2As2: Experiment and theory
Published in Physica. C, Superconductivity (15-03-2023)“…Single crystals of the iron-pnictide compound BaFe2(As1−xPx)2 for x∼0.23, with a doping concentration near quantum criticality and enhanced nematic fluctuating…”
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Quantum tricritical points in NbFe2
Published in Nature physics (01-01-2018)“…Quantum critical points (QCPs) emerge when a second-order phase transition is suppressed to zero temperature. In metals the quantum fluctuations at such a QCP…”
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Possible Raman signature of broken symmetry states near the quantum critical point in P doped BaFe 2 As 2 : Experiment and theory
Published in Physica. C, Superconductivity (01-03-2023)Get full text
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Pressure-Induced Metallization of BaH 2 and the Effect of Hydrogenation
Published in The journal of physical chemistry letters (21-12-2023)“…Using optical spectroscopy, X-ray diffraction, and electrical transport measurements, we have studied the pressure-induced metallization in BaH and Ba H . Our…”
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Pressure-Induced Metallization of BaH2 and the Effect of Hydrogenation
Published in The journal of physical chemistry letters (21-12-2023)“…Using optical spectroscopy, X-ray diffraction, and electrical transport measurements, we have studied the pressure-induced metallization in BaH2 and Ba8H46…”
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Fermi Surface Reconstruction and Electron Dynamics at the Charge-Density-Wave Transition in Ti S e 2
Published in Physical review letters (01-04-2020)Get full text
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Truncated mass divergence in a Mott metal
Published in Proceedings of the National Academy of Sciences - PNAS (19-09-2023)“…The Mott metal–insulator transition represents one of the most fundamental phenomena in condensed matter physics. Yet, basic tenets of the canonical…”
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Charge Order and Superconductivity in Underdoped YBa2Cu3O7−δ under Pressure
Published in Physical review letters (16-03-2018)“…In underdoped cuprates, an incommensurate charge density wave (CDW) order is known to coexist with superconductivity. A dip in Tc at the hole doping level…”
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