Search Results - "Manna, Kaustuv"
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Anomalous Nernst effect beyond the magnetization scaling relation in the ferromagnetic Heusler compound Co2MnGa
Published in NPG Asia materials (12-04-2019)“…Applying a temperature gradient in a magnetic material generates a voltage that is perpendicular to both the heat flow and the magnetization. This phenomenon…”
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2
Topological Engineering of Pt‐Group‐Metal‐Based Chiral Crystals toward High‐Efficiency Hydrogen Evolution Catalysts
Published in Advanced materials (Weinheim) (01-04-2020)“…It has been demonstrated that topological nontrivial surface states can favor heterogeneous catalysis processes such as the hydrogen evolution reaction (HER),…”
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3
Topological Quantum Materials from the Viewpoint of Chemistry
Published in Chemical reviews (10-03-2021)“…Topology, a mathematical concept, has recently become a popular and truly transdisciplinary topic encompassing condensed matter physics, solid state chemistry,…”
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Zero‐Field Nernst Effect in a Ferromagnetic Kagome‐Lattice Weyl‐Semimetal Co3Sn2S2
Published in Advanced materials (Weinheim) (20-06-2019)“…The discovery of magnetic topological semimetals has recently attracted significant attention in the field of topology and thermoelectrics. In a thermoelectric…”
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5
Chiral topological semimetal with multifold band crossings and long Fermi arcs
Published in Nature physics (01-08-2019)“…Topological semimetals in crystals with a chiral structure (which possess a handedness due to a lack of mirror and inversion symmetries) are expected to…”
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6
Observation of giant spin-split Fermi-arc with maximal Chern number in the chiral topological semimetal PtGa
Published in Nature communications (27-04-2020)“…Non-symmorphic chiral topological crystals host exotic multifold fermions, and their associated Fermi arcs helically wrap around and expand throughout the…”
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7
Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet
Published in Science (American Association for the Advancement of Science) (20-09-2019)“…Topological matter is known to exhibit unconventional surface states and anomalous transport owing to unusual bulk electronic topology. In this study, we use…”
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Observation and control of maximal Chern numbers in a chiral topological semimetal
Published in Science (American Association for the Advancement of Science) (10-07-2020)“…A very high Chern number Topologically nontrivial electronic structure can often be characterized by the Chern number, the value of which is related to the…”
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Extremely high magnetoresistance and conductivity in the type-II Weyl semimetals WP2 and MoP2
Published in Nature communications (21-11-2017)“…The peculiar band structure of semimetals exhibiting Dirac and Weyl crossings can lead to spectacular electronic properties such as large mobilities…”
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10
Extremely high conductivity observed in the triple point topological metal MoP
Published in Nature communications (06-06-2019)“…Weyl and Dirac fermions have created much attention in condensed matter physics and materials science. Recently, several additional distinct types of fermions…”
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11
Helicity-dependent photocurrents in the chiral Weyl semimetal RhSi
Published in Science advances (01-07-2020)“…The CPGE spectrum and optical conductivity in RhSi are measured and discussed, comparing to theoretical predictions. Weyl semimetals are crystals in which…”
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12
Handedness-dependent quasiparticle interference in the two enantiomers of the topological chiral semimetal PdGa
Published in Nature communications (14-07-2020)“…It has recently been proposed that combining chirality with topological band theory results in a totally new class of fermions. Understanding how these…”
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13
From Colossal to Zero: Controlling the Anomalous Hall Effect in Magnetic Heusler Compounds via Berry Curvature Design
Published in Physical review. X (11-12-2018)“…Since the discovery of the anomalous Hall effect (AHE), the anomalous Hall conductivity (AHC) has been thought to be zero when there is no net magnetization…”
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14
Observation of a phase transition within the domain walls of ferromagnetic Co3Sn2S2
Published in Nature communications (30-05-2022)“…The ferromagnetic phase of Co 3 Sn 2 S 2 is widely considered to be a topological Weyl semimetal, with evidence for momentum-space monopoles of Berry curvature…”
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15
Optical signatures of multifold fermions in the chiral topological semimetal CoSi
Published in Proceedings of the National Academy of Sciences - PNAS (03-11-2020)“…We report the optical conductivity in high-quality crystals of the chiral topological semimetal CoSi, which hosts exotic quasiparticles known as multifold…”
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16
Anisotropic resistance with a 90° twist in a ferromagnetic Weyl semimetal, Co2MnGa
Published in Nature communications (18-10-2023)“…Weyl semimetals exhibit exotic magnetotransport phenomena such as the chiral anomaly and surface-to-bulk quantum oscillations (Weyl orbits) due to chiral bulk…”
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17
2D‐Berry‐Curvature‐Driven Large Anomalous Hall Effect in Layered Topological Nodal‐Line MnAlGe
Published in Advanced materials (Weinheim) (01-05-2021)“…Topological magnets comprising 2D magnetic layers with Curie temperatures (TC) exceeding room temperature are key for dissipationless quantum transport…”
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18
Observation of an anomalous Hall effect in single-crystal Mn3Pt
Published in New journal of physics (01-02-2023)“…The Mn3X family of compounds was the first in which a large anomalous Hall effect (AHE) was predicted to arise from a purely antiferromagnetic structure, due…”
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Investigating Size- and Temperature-Dependent Coercivity and Saturation Magnetization in PEG Coated Fe3O4 Nanoparticles
Published in Magnetochemistry (01-06-2017)“…Polyethylene glycol (PEG) coated magnetic Fe3O4 nanoparticles with diameters of 12 nm, 15 nm, and 16 nm were synthesized by the usual co-precipitation method…”
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Evaluation of the intrinsic magneto-dielectric coupling in LaMn0.5Co0.5O3 single crystals
Published in Applied physics letters (19-05-2014)“…The magneto-dielectric coupling in (l00) oriented LaMn0.5Co0.5O3 single crystals has been investigated using temperature, frequency, and magnetic field…”
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