Search Results - "Assaf, Badih A"
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High-precision realization of robust quantum anomalous Hall state in a hard ferromagnetic topological insulator
Published in Nature materials (01-05-2015)“…An almost ideal quantum anomalous Hall state is observed in (Bi,Sb)Te films doped with vanadium. This state is reached without the application of a polarizing…”
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Exchange-coupling-induced symmetry breaking in topological insulators
Published in Physical review letters (30-04-2013)“…An exchange gap in the Dirac surface states of a topological insulator (TI) is necessary for observing the predicted unique features such as the topological…”
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A high-temperature ferromagnetic topological insulating phase by proximity coupling
Published in Nature (London) (26-05-2016)“…Coupling a ferromagnetic insulator to a topological insulator induces a robust magnetic state at the interface, resulting from the large spin-orbit interaction…”
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Strain engineering Dirac surface states in heteroepitaxial topological crystalline insulator thin films
Published in Nature nanotechnology (01-10-2015)“…The generation of strain in SnTe thin films due to lattice mismatch with the PbSe substrate can be used to tune the position of Dirac nodes in momentum space…”
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Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface
Published in Scientific reports (14-01-2014)“…Strain and charge co-mediated magnetoelectric coupling are expected in ultra-thin ferromagnetic/ferroelectric multiferroic heterostructures, which could lead…”
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Interplay of orbital effects and nanoscale strain in topological crystalline insulators
Published in Nature communications (19-04-2018)“…Orbital degrees of freedom can have pronounced effects on the fundamental properties of electrons in solids. In addition to influencing bandwidths, gaps,…”
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Spin regulation in composite spin-filter barrier devices
Published in Nature communications (23-04-2014)“…Magnetic insulators are known to provide large effective Zeeman fields that are confined at an interface, making them especially powerful in modifying adjacent…”
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Energy gap of topological surface states in proximity to a magnetic insulator
Published in Communications physics (05-08-2023)“…Topological surface-states can acquire an energy gap when time-reversal symmetry is broken by interfacing with a magnetic insulator. This gap has yet to be…”
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Magnetooptical determination of a topological index
Published in npj quantum materials (24-05-2017)“…When a Dirac fermion system acquires an energy-gap, it is said to have either trivial (positive energy-gap) or non-trivial (negative energy-gap) topology,…”
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Dirac Landau Level Spectroscopy in Pb1−xSnxSe and Pb1−xSnxTe across the Topological Phase Transition: A Review
Published in Crystals (Basel) (20-01-2017)“…Topological crystalline insulators (TCIs) are topological materials that have Dirac surface states occurring at crystalline symmetric points in the Brillouin…”
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Magnetic and transport properties of Mn2CoAl oriented films
Published in Applied physics letters (30-09-2013)“…The structure, magnetic, and transport properties of thin films of the Heusler ferrimagnet Mn2CoAl have been investigated for properties related to spin…”
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Superconducting spin switch with infinite magnetoresistance induced by an internal exchange field
Published in Physical review letters (25-02-2013)“…A theoretical prediction by de Gennes suggests that the resistance in a FI/S/FI (where FI is a ferromagnetic insulator, and S is a superconductor) structure…”
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Band engineering of magnetic (Ga,Mn)As semiconductors by phosphorus doping
Published in IEEE transactions on magnetics (01-11-2023)“…Impact of P and Mn incorporation into GaAs layers on their electronic and band structures as well as magnetic and structural properties has been studied. A set…”
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Observation of Coexisting Weak Localization and Superconducting Fluctuations in Strained Sn1-xInxTe Thin Films
Published in Nano letters (26-01-2022)“…Topological superconductors have attracted tremendous excitement as they are predicted to host Majorana zero modes that can be utilized for topological quantum…”
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Observation of Coexisting Weak Localization and Superconducting Fluctuations in Strained Sn 1- x In x Te Thin Films
Published in Nano letters (26-01-2022)“…Topological superconductors have attracted tremendous excitement as they are predicted to host Majorana zero modes that can be utilized for topological quantum…”
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Superconducting and antiferromagnetic properties of dual-phase V3Ga
Published in Applied physics letters (10-08-2020)“…The binary compound V3Ga can exhibit two near-equilibrium phases, the A15 structure that is superconducting and the Heusler D03 structure that is…”
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Modification of Magnetic Semiconductors by Phosphorus Doping
Published in 2023 IEEE 13th International Conference Nanomaterials: Applications & Properties (NAP) (10-09-2023)“…Impact of P and Mn incorporation into G a As layers on their electronic and band structures as well as magnetic and structural properties has been studied. A…”
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Conference Proceeding -
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Band engineering of magnetic semiconductors by phosphorus doping
Published in 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers) (01-05-2023)“…Impact of P and Mn incorporation into GaAs layers on their electronic- and band-structures as well as their magnetic and structural properties has been…”
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Conference Proceeding -
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Optical-Pump Terahertz-Probe Spectroscopy of the Topological Crystalline Insulator Pb1–x Sn x Se through the Topological Phase Transition
Published in ACS photonics (16-03-2022)“…Topological crystalline insulators, topological insulators whose properties are guaranteed by crystalline symmetry, can potentially provide a promising…”
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