Search Results - "Samarth, Nitin"
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Quantum materials discovery from a synthesis perspective
Published in Nature materials (01-11-2017)“…The synthesis of bulk crystals, thin films and nanostructures plays a seminal role in expanding the frontiers of quantum materials. Crystal growers accomplish…”
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Concurrence of quantum anomalous Hall and topological Hall effects in magnetic topological insulator sandwich heterostructures
Published in Nature materials (01-07-2020)“…The quantum anomalous Hall (QAH) effect is a consequence of non-zero Berry curvature in momentum space. The QAH insulator harbours dissipation-free chiral edge…”
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Giant anisotropic magnetoresistance in a quantum anomalous Hall insulator
Published in Nature communications (07-07-2015)“…When a three-dimensional ferromagnetic topological insulator thin film is magnetized out-of-plane, conduction ideally occurs through dissipationless,…”
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Unidirectional spin-Hall and Rashba−Edelstein magnetoresistance in topological insulator-ferromagnet layer heterostructures
Published in Nature communications (09-01-2018)“…The large spin−orbit coupling in topological insulators results in helical spin-textured Dirac surface states that are attractive for topological spintronics…”
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Realization of the Axion Insulator State in Quantum Anomalous Hall Sandwich Heterostructures
Published in Physical review letters (31-01-2018)“…The "magnetoelectric effect" arises from the coupling between magnetic and electric properties in materials. The Z_{2} invariant of topological insulators…”
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Giant Spin Pumping and Inverse Spin Hall Effect in the Presence of Surface and Bulk Spin−Orbit Coupling of Topological Insulator Bi2Se3
Published in Nano letters (14-10-2015)“…Three-dimensional (3D) topological insulators are known for their strong spin–orbit coupling (SOC) and the existence of spin-textured surface states that might…”
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Surface-State-Dominated Spin-Charge Current Conversion in Topological-Insulator-Ferromagnetic-Insulator Heterostructures
Published in Physical review letters (12-08-2016)“…We report the observation of ferromagnetic resonance-driven spin pumping signals at room temperature in three-dimensional topological insulator thin…”
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Mapping the chemical potential dependence of current-induced spin polarization in a topological insulator
Published in Physical review. B, Condensed matter and materials physics (20-10-2015)Get full text
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Absence of evidence for chiral Majorana modes in quantum anomalous Hall-superconductor devices
Published in Science (American Association for the Advancement of Science) (03-01-2020)“…A quantum anomalous Hall (QAH) insulator coupled to an s-wave superconductor is predicted to harbor chiral Majorana modes. A recent experiment interprets the…”
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Scaling behavior of the quantum phase transition from a quantum-anomalous-Hall insulator to an axion insulator
Published in Nature communications (10-09-2020)“…The phase transitions from one plateau to the next plateau or to an insulator in quantum Hall and quantum anomalous Hall (QAH) systems have revealed universal…”
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Interface-induced sign reversal of the anomalous Hall effect in magnetic topological insulator heterostructures
Published in Nature communications (04-01-2021)“…The Berry phase picture provides important insights into the electronic properties of condensed matter systems. The intrinsic anomalous Hall (AH) effect can be…”
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ZrTe2/CrTe2: an epitaxial van der Waals platform for spintronics
Published in Nature communications (27-05-2022)“…The rapid discovery of two-dimensional (2D) van der Waals (vdW) quantum materials has led to heterostructures that integrate diverse quantum functionalities…”
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Changes of Magnetism in a Magnetic Insulator due to Proximity to a Topological Insulator
Published in Physical review letters (01-07-2020)“…We report the modification of magnetism in a magnetic insulator Y3Fe5O12 thin film by topological surface states (TSS) in an adjacent topological insulator…”
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Momentum-space imaging of Cooper pairing in a half-Dirac-gas topological superconductor
Published in Nature physics (01-12-2014)“…Superconductivity involving topological Dirac electrons has recently been proposed as a platform between concepts in high-energy and condensed-matter physics…”
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Bulk-impurity induced noise in large-area epitaxial thin films of topological insulators
Published in Applied physics letters (07-08-2017)“…We report a detailed study on low-frequency 1 / f -noise in large-area molecular-beam epitaxy grown thin ( ∼ 10 nm) films of topological insulators as a…”
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Helicity dependent photocurrent in electrically gated (Bi1−xSbx)2Te3 thin films
Published in Nature communications (19-10-2017)“…Circularly polarized photons are known to generate a directional helicity-dependent photocurrent in three-dimensional topological insulators at room…”
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On the understanding of current-induced spin polarization of three-dimensional topological insulators
Published in Nature communications (01-04-2019)Get full text
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Interplay between superconductivity and ferromagnetism in crystalline nanowires
Published in Nature physics (01-05-2010)“…The interaction between superconductivity and ferromagnetism, which entails incompatible spin order, is one of the problems of fundamental interest in…”
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Proximity-effect-induced Superconducting Gap in Topological Surface States – A Point Contact Spectroscopy Study of NbSe2/Bi2Se3 Superconductor-Topological Insulator Heterostructures
Published in Scientific reports (09-08-2017)“…Proximity-effect-induced superconductivity was studied in epitaxial topological insulator Bi 2 Se 3 thin films grown on superconducting NbSe 2 single crystals…”
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