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Related papers: Ab initio screening of metallic MAX ceramics for a…

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In this review, we present a comprehensive overview of superconductivity in electron-doped metal nitride halides $M$N$X$ ($M$ = Ti, Zr, Hf; $X$ = Cl, Br, I) with layered crystal structure and two-dimensional electronic states. The parent…

Superconductivity · Physics 2015-06-11 Yuichi Kasahara , Kazuhiko Kuroki , Shoji Yamanaka , Yasujiro Taguchi

We investigate the magnetotransport properties of a thin graphite wire resting on a silicon oxide substrate. The electric field effect is demonstrated with back and side gate electrodes. We study the conductance fluctuations as a function…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 D. Graf , F. Molitor , T. Ihn , K. Ensslin

We combine ab initio density functional theory with transport calculations to provide a microscopic basis for distinguishing between good and poor metal contacts to nanotubes. Comparing Ti and Pd as examples of different contact metals, we…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 N. Nemec , D. Tomanek , G. Cuniberti

We report a comprehensive study on the electrochemical performance of four different Transition Metal Oxides encapsulated inside carbon nanotubes (CNT). Irrespective of the type of oxide-encapsulate, all these samples exhibit superior…

Superconductivity or metallic state may coexist with density wave ordering at imperfect nesting of the Fermi surface. In addition to the macroscopic spatial phase separation, there are, at least, two possible microscopic structures of such…

Strongly Correlated Electrons · Physics 2015-06-23 P. D. Grigoriev , S. S. Kostenko

Carbon nanotube fibers are materials with an exceptional combination of properties, including higher toughness than carbon fibers, electrical conductivity above metals, large specific surface area (250 $\frac{m^2}{g}$) and high…

Applied Physics · Physics 2019-02-20 Belén Alemán , María Vila , Juan J. Vilatela

In this work, we have explored via first principles study of mechanical properties including Vickers hardness and mechanical anisotropy, electronic charge density distribution, Fermi surface, thermodynamic and optical properties of the…

Materials Science · Physics 2020-09-15 M. A. Ali , M. M. Hossain , A. K. M. A. Islam , S. H. Naqib

We report associated high resolution transmission electron microscopy (HRTEM) and transport measurements on a series of isolated multiwalled carbon nanotubes. HRTEM observations, by revealing relevant structural features of the tubes, shed…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 A. Yu. Kasumov , H. Bouchiat , B. Reulet , O. Stephan , I. I. Khodos , Yu. B. Gorbatov , C. Colliex

Magnetic phase diagram of NiS2-xSex has been reexamined by systematic studies of electrical resistivity, uniform magnetic susceptibility and neutron diffraction using single crystals grown by a chemical transport method. The electrical…

Strongly Correlated Electrons · Physics 2009-10-31 M. Matsuura , H. Hiraka , K. Yamada , Y. Endoh

The scaling of Si transistor technology has resulted in a remarkable improvement in the performance of integrated circuits over the last decades. However, scaled transistors also require reduced electrical interconnect dimensions, which…

The structure and elastic properties of (5,5) and (10,10) nanotubes, as well as barriers for relative rotation of the walls and their relative sliding along the axis in a double-walled (5,5)@(10,10) carbon nanotube, are calculated using the…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 A. M. Popov , Yu. E. Lozovik , A. S. Sobennikov , A. A. Knizhnik

This research explores the characteristics of two CMOS-compatible RRAM cells utilizing silicon nitride as the switching material. By employing SET/RESET pulse sequences, the study successfully attains four distinct and stable resistance…

Aside from recent advances in artificial intelligence (AI) models, specialized AI hardware is crucial to address large volumes of unstructured and dynamic data. Hardware-based AI, built on conventional complementary metal-oxidesemiconductor…

A superconducting phase with an extremely low carrier density of the order of 10^13 cm^-2 is present at LaAlO3-SrTiO3 interfaces. If depleted from charge carriers by means of a gate field, this superconducting phase undergoes a transition…

Superconductivity · Physics 2016-02-17 E. Fillis-Tsirakis , C. Richter , J. Mannhart , H. Boschker

We have used density functional theory to study the recently predicted MAX phase borides Hf2AB (A = Pb, Bi) in where the mechanical, electronic, thermal, and optical properties have been investigated for the first time. A good agreement of…

Materials Science · Physics 2021-01-15 M. S. Hossain , M. A. Ali , M. M. Hossain , M. M. Uddin

This article deals with the multiscale modeling of stress transfer characteristics of nano-reinforced polymer composite reinforced with regularly staggered carbon fibers. The distinctive feature of construction of nano-reinforced composite…

Materials Science · Physics 2017-02-06 S. I. Kundalwal , S. A. Meguid

The Fermi surfaces of Fe-pnictide superconductors are fairly two-dimensional (2D), and it has thus come as a surprise that recent penetration depth and thermal conductivity measurements on systems of the 122 type have reported c-axis…

Superconductivity · Physics 2015-03-18 V. Mishra , S. Graser , P. J. Hirschfeld

The apparently inimical relationship between magnetism and superconductivity has come under increasing scrutiny in a wide range of material classes, where the free energy landscape conspires to bring them in close proximity to each other.…

Strongly Correlated Electrons · Physics 2015-05-20 Sunil Nair , O. Stockert , U. Witte , M. Nicklas , R. Schedler , K. Kiefer , J. D. Thompson , A. D. Bianchi , Z. Fisk , S. Wirth , F. Steglich

Transition Metal Nitrides are a versatile class of materials, combining chemical robustness, high hardness, and superconducting behaviour with critical temperatures between 2 to 10 K. While several binary TMNs have been explored,…

We study contact effects on electron transport across a molecular wire sandwiched between two semi-infinite (carbon) nanotube leads as a model for nanoelectrodes. Employing the Landauer scattering matrix approach we find that the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 G. Fagas , G. Cuniberti , K. Richter