Search Results - "Geibel, C"
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Field-induced transition within the superconducting state of CeRh2As2
Published in Science (American Association for the Advancement of Science) (27-08-2021)“…Not your usual superconductorMost superconductors have only one superconducting phase. Khim et al. measured the magnetic susceptibility of the heavy fermion…”
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Methane emissions offset atmospheric carbon dioxide uptake in coastal macroalgae, mixed vegetation and sediment ecosystems
Published in Nature communications (03-01-2023)“…Coastal ecosystems can efficiently remove carbon dioxide (CO 2 ) from the atmosphere and are thus promoted for nature-based climate change mitigation. Natural…”
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Superconducting state in SrFe2-xCoxAs2 by internal doping of the iron arsenide layers
Published in Physical review letters (14-11-2008)“…In the strontium iron-cobalt arsenides SrFe2-xCoxAs2 (0.2 < or = x < or = 0.4) superconductivity with T_{c} up to 20 K is observed in magnetic susceptibility,…”
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Evolution of the Kondo lattice and non-Fermi liquid excitations in a heavy-fermion metal
Published in Nature communications (20-08-2018)“…Strong electron correlations can give rise to extraordinary properties of metals with renormalized Landau quasiparticles. Near a quantum critical point, these…”
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Emerging local Kondo screening and spatial coherence in the heavy-fermion metal YbRh2Si2
Published in Nature (London) (16-06-2011)“…That Kondo moment Certain metallic alloys that have a combination of localized magnetic moments and mobile conduction electrons can form an exotic state of…”
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6
Methane fluxes from the sea to the atmosphere across the Siberian shelf seas
Published in Geophysical research letters (16-06-2016)“…The Laptev and East Siberian Seas have been proposed as a substantial source of methane (CH4) to the atmosphere. During summer 2014, we made unique…”
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7
Similar temperature scale for valence changes in Kondo lattices with different Kondo temperatures
Published in Nature communications (22-05-2018)“…The Kondo model predicts that both the valence at low temperatures and its temperature dependence scale with the characteristic energy T K of the Kondo…”
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Detaching the antiferromagnetic quantum critical point from the Fermi-surface reconstruction in YbRh2Si2
Published in Nature physics (01-07-2009)“…Under chemical pressure, two phase transitions that were seemingly linked become detached in YbRh 2 Si 2 , thereby clarifying a long-standing mystery in the…”
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ARPES view on surface and bulk hybridization phenomena in the antiferromagnetic Kondo lattice CeRh2Si2
Published in Nature communications (18-03-2016)“…The hybridization between localized 4 f electrons and itinerant electrons in rare-earth-based materials gives rise to their exotic properties like valence…”
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10
Multiple Energy Scales at a Quantum Critical Point
Published in Science (American Association for the Advancement of Science) (16-02-2007)“…We report thermodynamic measurements in a magnetic-field-driven quantum critical point of a heavy fermion metal, YbRh₂Si₂. The data provide evidence for an…”
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11
Possible Quadrupole Density Wave in the Superconducting Kondo Lattice CeRh2As2
Published in Physical review. X (01-03-2022)“…CeRh2As2has recently been reported to be a rare case of a multiphase unconventional superconductor close to a quantum critical point (QCP). Here, we present a…”
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12
Magnetically driven superconductivity in CeCu2Si2
Published in Nature physics (01-02-2011)“…A neutron-scattering study provides quantitative evidence for magnetically mediated superconductivity close to a quantum critical point in the heavy fermion…”
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13
High Emissions of Carbon Dioxide and Methane From the Coastal Baltic Sea at the End of a Summer Heat Wave
Published in Frontiers in Marine Science (07-08-2019)“…The summer heat wave in 2018 led to the highest recorded water temperatures since 1926 – up to 21 C – in bottom coastal waters of the Baltic Sea, with…”
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14
Field-Angle Dependence Reveals Odd-Parity Superconductivity in CeRh2As2
Published in Physical review. X (01-07-2022)“…CeRh2As2is an unconventional superconductor with multiple superconducting phases andTc=0.26K. WhenH∥c, it shows a field-induced transition atμ0H*=4Tfrom a…”
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15
Direct determination of the air‐sea CO2 gas transfer velocity in Arctic sea ice regions
Published in Geophysical research letters (28-04-2017)“…The Arctic Ocean is an important sink for atmospheric CO2. The impact of decreasing sea ice extent and expanding marginal ice zones on Arctic air‐sea CO2…”
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16
Kondo-cluster-glass state near a ferromagnetic quantum phase transition
Published in Physical review letters (22-05-2009)“…We report on a comprehensive study of CePd(1-x)Rh(x) (0.6 <or= x <or= 0.95) poly- and single crystals close to the ferromagnetic instability by means of…”
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Ferromagnetic quantum criticality in the quasi-one-dimensional heavy fermion metal YbNi4P2
Published in New journal of physics (12-10-2011)Get full text
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18
Hall-effect evolution across a heavy-fermion quantum critical point
Published in Nature (16-12-2004)“…A quantum critical point (QCP) develops in a material at absolute zero when a new form of order smoothly emerges in its ground state. QCPs are of great current…”
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Electron Doping of the Iron-Arsenide Superconductor CeFeAsO Controlled by Hydrostatic Pressure
Published in Physical review letters (13-11-2020)“…In the iron-pnictide material CeFeAsO not only the Fe moments, but also the local 4f moments of the Ce order antiferromagnetically at low temperatures. We…”
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Evidence for a non-Fermi-liquid phase in Ge-substituted YbRh2Si2
Published in Physical review letters (07-05-2010)“…The canonical view of heavy fermion quantum criticality assumes a single quantum critical point separating the paramagnet from the antiferromagnet. However,…”
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