Search Results - "Gierz, I"
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Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling
Published in Nature materials (01-07-2014)“…Nonlinear optical excitation of infrared active lattice vibrations has been shown to melt magnetic or orbital orders and to transform insulators into metals…”
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Tracking Primary Thermalization Events in Graphene with Photoemission at Extreme Time Scales
Published in Physical review letters (21-08-2015)“…Direct and inverse Auger scattering are amongst the primary processes that mediate the thermalization of hot carriers in semiconductors. These two processes…”
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Microscopic Understanding of Ultrafast Charge Transfer in van der Waals Heterostructures
Published in Physical review letters (31-12-2021)“…Van der Waals heterostructures show many intriguing phenomena including ultrafast charge separation following strong excitonic absorption in the visible…”
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4
Charge Density Wave Melting in One-Dimensional Wires with Femtosecond Subgap Excitation
Published in Physical review letters (19-07-2019)“…Charge density waves (CDWs) are symmetry-broken ground states that commonly occur in low-dimensional metals due to strong electron-electron and/or…”
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5
Silicon surface with giant spin splitting
Published in Physical review letters (24-07-2009)“…We demonstrate a giant Rashba-type spin splitting on a semiconducting substrate by means of a Bi-trimer adlayer on a Si(111) wafer. The in-plane inversion…”
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Angle-resolved photoemission spectroscopy with 9-eV photon-energy pulses generated in a gas-filled hollow-core photonic crystal fiber
Published in Applied physics letters (31-08-2015)“…A recently developed source of ultraviolet radiation, based on optical soliton propagation in a gas-filled hollow-core photonic crystal fiber, is applied here…”
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7
Assessing the atomic contribution to the Rashba spin-orbit splitting in surface alloys: Sb/Ag(111)
Published in Physical review. B, Condensed matter and materials physics (11-02-2009)Get full text
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Probing carrier dynamics in photo-excited graphene with time-resolved ARPES
Published in Journal of electron spectroscopy and related phenomena (01-08-2017)“…•tr-ARPES is used to investigate carrier thermalization in photo-excited graphene.•Photo-excitation builds up a non-thermal carrier distribution.•Lifetime of…”
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Femtosecond time-and-angle-resolved EUV photoemission spectroscopy with mid-IR pumping
Published in 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications (01-06-2014)“…Time- and angle-resolved photoemission spectroscopy directly enables observation of electron dynamics in condensed matter. Using EUV high harmonic probe…”
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Conference Proceeding -
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Band Structure Dynamics in Indium Wires
Published 21-04-2018“…Phys. Rev. B 97, 201401 (2018) One-dimensional Indium wires grown on Si(111) substrates, which are metallic at high temperatures, become insulating below…”
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Floquet states in dissipative open quantum systems
Published 17-02-2020“…We theoretically investigate basic properties of nonequilibrium steady states of periodically-driven open quantum systems based on the full solution of the…”
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Microscopic understanding of ultrafast charge transfer in van-der-Waals heterostructures
Published 16-12-2020“…Van-der-Waals heterostructures show many intriguing phenomena including ultrafast charge separation following strong excitonic absorption in the visible…”
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13
Optically induced coherent transport far above T sub(c) in underdoped YBa sub(2)Cu sub(3)O sub(6+ delta )
Published in Physical review. B, Condensed matter and materials physics (01-05-2014)“…We report on a photoinduced transient state of YBa sub(2) Cu sub(2) O sub(6+ delta ) in which transport perpendicular to the Cu-O planes becomes highly…”
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14
Optically induced coherent transport far above T c in underdoped YBa 2 Cu 3 O 6 + δ
Published in Physical review. B, Condensed matter and materials physics (01-05-2014)Get full text
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15
On the survival of Floquet-Bloch states in the presence of scattering
Published 25-02-2021“…Floquet theory has spawned many exciting possibilities for electronic structure control with light with enormous potential for future applications. The…”
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Possible observation of parametrically amplified coherent phasons in K sub(0.3) MoO sub(3) using time-resolved extreme-ultraviolet angle-resolved photoemission spectroscopy
Published in Physical review. B, Condensed matter and materials physics (15-07-2013)“…We use time- and angle-resolved photoemission spectroscopy in the extreme ultraviolet to measure the time- and momentum-dependent electronic structures of…”
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Direct evidence for efficient ultrafast charge separation in epitaxial WS$_2$/graphene heterostructure
Published 02-04-2019“…We use time- and angle-resolved photoemission spectroscopy (tr-ARPES) to investigate ultrafast charge transfer in an epitaxial heterostructure made of…”
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18
Charge density wave melting in one-dimensional wires with femtosecond sub-gap excitation
Published 23-10-2018“…Phys. Rev. Lett. 123, 036405 (2019) Charge density waves (CDWs) are symmetry-broken ground states that commonly occur in low-dimensional metals due to strong…”
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Ultrafast Momentum Imaging of Pseudospin-Flip Excitations in Graphene
Published 20-06-2017“…Phys. Rev. B 96, 020301 (2017) The pseudospin of Dirac electrons in graphene manifests itself in a peculiar momentum anisotropy for photo-excited electron-hole…”
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