Search Results - "Labib, Farid"
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Catalytic Properties and Their Relation with Adsorption Energies Calculated by Density Functional Theory in Pd-Containing 1/1 Approximant Crystals
Published in MATERIALS TRANSACTIONS (01-10-2023)“…Quasicrystals and approximant crystals (ACs) have a unique complex structure with many crystallographically non-equivalent sites. In order to apply this…”
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High Phase-Purity and Composition-Tunable Ferromagnetic Icosahedral Quasicrystal
Published in Physical review letters (28-04-2023)“…We discovered a ferromagnetic Au-Ga-Dy icosahedral quasicrystal (i QC), not only with high phase purity but also with tunable composition. The isothermal…”
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3
Formation and crystallographic orientation study of quasicrystal, 2/1 and 1/1 approximants in Cd-Mg-Y system using electron backscatter diffraction (EBSD)
Published in Philosophical magazine (Abingdon, England) (18-06-2019)“…A partial isothermal ternary phase diagram of the Cd-Mg-Y system including icosahedral quasicrystal (i-QC) and 1/1 approximant (APP) was obtained at 673 K. The…”
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4
High- and Low-Energy Photoemission Study of Strongly Correlated Au–Ga–Ce Quasicrystal Approximants: Localized 4f Nature and Disorder Effects
Published in Journal of the Physical Society of Japan (15-07-2024)“…We have investigated the electronic structures of Ce-based 1/1 quasicrystal approximants Au59.2Ga25.7Ce15.1 and Au60.3Ga26.1Ce13.6 by hard X-ray photoemission…”
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5
Unveiling exotic magnetic phase diagram of a non-Heisenberg quasicrystal approximant
Published in Materials today physics (01-01-2024)“…A magnetic phase diagram of the non-Heisenberg Tsai-type 1/1 Au-Ga-Tb approximant crystal (AC) has been established across a wide electron-per-atom (e/a) range…”
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6
2/1 and 1/1 cubic approximants in the ternary R‐Cd‐Mg (R = Y, Er) systems
Published in Acta crystallographica Section B, Structural science, crystal engineering and materials (01-08-2021)“…The atomic structures of three cubic approximants (cAPs), Y12.7Cd61.8Mg25.5 [2/1 cAP with space group Pa3, a = 25.0654 (1) Å] and Er12.5Cd72.0Mg15.5 [2/1 cAP…”
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Icosahedral quasicrystals and their cubic approximants in the Cd-Mg-RE (RE = Y, Sm, Gd, Tb, Dy, Ho, Er, Tm) systems
Published in Journal of alloys and compounds (05-05-2020)“…The formation and stability of icosahedral quasicrystals and their cubic approximants in the Cd-Mg-RE (RE = Y, Sm, Gd, Tb, Dy, Ho, Er, Tm) systems are studied…”
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Formation and structure of 1/1 cubic approximants in the Cd-Mg-Ce system: The identification of a new structural variant
Published in Journal of alloys and compounds (05-09-2023)“…The stability region of the 1/1 cubic crystalline approximant to icosahedral quasicrystal in the Cd-Mg-Ce system was investigated in detail. The partial…”
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Magnetic properties investigation of the Au–Ga–Tb 1/1 approximant crystals with single ferromagnetic and successive ferromagnetic/antiferromagnetic transitions
Published in Acta crystallographica. Section A, Foundations and advances (22-08-2023)“…Abstract only…”
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10
Critical behavior and magnetocaloric effect in Tsai-type 2/1 and 1/1 quasicrystal approximants
Published 22-10-2023“…Stable Tsai-type quinary 1/1 and 2/1 approximant crystals (ACs) with chemical compositions Au56.25Al10Cu7In13Tb13.75 and Au55.5Al10Cu7In13Tb14.5, respectively,…”
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11
Emergence of long-range magnetic order from spin-glass state by tuning electron density in a stoichiometric Ga-based quasicrystal approximant
Published 19-05-2023“…Physical Review B 106, 174436 (2022) This study reports the first observation of ferromagnetic (FM) order in the non-Au-based approximant crystals (ACs) using…”
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Competition between spin-glass and antiferromagnetic states in Tsai-type 1/1 and 2/1 quasicrystal approximants
Published 18-05-2023“…Physical Review MATERIALS 6, 124412 (2022) Systematic research was performed to investigate magnetic properties of the Tsai-type Ga-Pd-RE (RE = Gd, Tb, Dy, and…”
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13
Atomic structure of the unique antiferromagnetic 2/1 quasicrystal approximant
Published 16-05-2023“…Physical Review B 107, 184110 (2023) The atomic structure of the recently discovered antiferromagnetic Ga50Pd35.5Tb14.5 2/1 approximant to quasicrystal with…”
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14
Anomalous magnetic transition in a disordered quasicrystal approximant with heavy-fermion nature
Published 25-04-2024“…Quasicrystal approximant (CexY1-x)Cd6 (0 < x < 1) forms a network of corner-sharing octahedra. We report that (Ce0.8Y0.2)Cd6 exhibits an anomalous magnetic…”
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15
Unveiling exotic magnetic phase diagram of a non-Heisenberg quasicrystal approximant
Published 22-10-2023“…A magnetic phase diagram of the non-Heisenberg Tsai-type 1/1 Au-Ga-Tb approximant crystal (AC) has been established across a wide electron-per-atom (e/a) range…”
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16
Magnetic properties of icosahedral quasicrystals and their cubic approximants in the Cd-Mg-RE (RE = Gd, Tb, Dy, Ho, Er, and Tm) systems
Published 21-05-2020“…A systematic investigation has been performed to elucidate effects of Rare-Earth (RE) type and local atomic configuration on magnetic properties of icosahedral…”
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17
Structural-transition-driven antiferromagnetic to spin-glass transition in Cd-Mg-Tb 1/1 approximants
Published 28-07-2020“…The magnetic susceptibility of the 1/1 approximants to icosahedral quasicrystals in a series of Cd85-xMgxTb15 (x = 5, 10, 15, 20) alloys was investigated in…”
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