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Based on atomistic calculations of electron and phonon transport, we propose to use surface decorated Silicon nanowires (SiNWs) for thermoelectric applications. Two examples of surface decorations are studied to illustrate the underlying…

Mesoscale and Nanoscale Physics · Physics 2009-07-14 Troels Markussen , Antti-Pekka Jauho , Mads Brandbyge

We compute analytically the weak (anti)localization correction to the Drude conductivity for electrons in tubular semiconductor systems of zinc blende type. We include linear Rashba and Dresselhaus spin-orbit coupling (SOC) and compare…

Mesoscale and Nanoscale Physics · Physics 2016-12-09 Michael Kammermeier , Paul Wenk , John Schliemann , Sebastian Heedt , Thomas Schäpers

The spin-transfer torque motion of magnetic domain walls (DWs) in a CoB/Ni-based nanowire driven by a low current density of (1.12\pm0.8)\times10^{11} A m^{-2} has been observed indirectly by magnetotransport measurements. A high DW…

Materials Science · Physics 2012-08-29 Duc-The Ngo , Norihito Watanabe , Hiroyuki Awano

We consider electronic transport through semiconducting nanowires (W) with spin-orbit interaction (SOI), in a hybrid N-W-N setup where the wire is contacted by normal-metal leads (N). We investigate the conductance behavior of the system as…

Mesoscale and Nanoscale Physics · Physics 2014-12-16 Diego Rainis , Daniel Loss

Combining mean-field and renormalization group analyses, here we unveil the nature of recently observed superconductivity and parent metallic states in chemically doped rhombohedral trilayer graphene, subject to external electric…

Strongly Correlated Electrons · Physics 2022-02-16 Andras Szabo , Bitan Roy

The structural, electronic, lattice dynamics, electron-phonon coupling, and superconducting properties of the alkali-metal hydride RbH, metalized through electron-doping by the construction of the solid-solution Rb$_{1-x}$Sr$_x$H, are…

Superconductivity · Physics 2022-10-19 S. Villa-Cortés , M. A. Olea-Amezcua , O. De la Peña-Seaman

Boosting superconductivity by metallic reservoirs is the essence of Kivelson's bilayer proposal. One layer provides pairing to the electrons, while the weakly coupled metal provides additional phase coherence to those pairs by mediating…

In a one-dimensional ferromagnet-superconductor nanowire, magnetism can suppress superconductivity except where the Zeeman field is suppressed, for example domain wall superconductivity (DWS) near magnetic domain walls or…

Graphene on a substrate will suffer an inversion-symmetry-breaking (ISB) lattice potential. Taking electron-electron interaction into account, we study in this paper the possibility of half-metallicity and noncollinear (NC) magnetic phase…

Mesoscale and Nanoscale Physics · Physics 2011-09-26 Lihua Pan , Jin An , Yong-Jun Liu , Chang-De Gong

Optically addressable spin defects in three-dimensional (3D) crystals and two-dimensional (2D) van der Waals (vdW) materials are revolutionizing nanoscale quantum sensing. Spin defects in one-dimensional (1D) vdW nanotubes will provide…

Mesoscale and Nanoscale Physics · Physics 2024-09-09 Xingyu Gao , Sumukh Vaidya , Saakshi Dikshit , Peng Ju , Kunhong Shen , Yuanbin Jin , Shixiong Zhang , Tongcang Li

Boron (B)/phosphorus (P) doped single wall carbon nanotubes (B-PSWNTs) are studied by using the First- Principle method based on density function theory (DFT). Mayer bond order, band structure, electrons density and density of states are…

Mesoscale and Nanoscale Physics · Physics 2011-08-15 AQing Chen , QingYi Shao , Zhen Li

The doping of lighter non-metals like boron and nitrogen into graphene represents a promising advancement in the field of nano-electronic devices, particularly in the development of field-effect transistors (FETs). These doped…

Materials Science · Physics 2023-08-16 Vivek Kumar Yadav

In this work, we study the effect of doping the Rutile-type dioxide SnO2 material by the non-metal Sulfur (S) atoms on the electronic properties. In fact, we have used the ab-initio method applied on the basis of the Density Functional…

Materials Science · Physics 2021-08-12 S. Idrissi , L. Bahmad , A. Benyoussef

We present results of a combined density functional and many-body calculations for the electronic and magnetic properties of the defect-free digital ferromagnetic heterostructures obtained by doping GaAs with Cr and Mn. While local density…

Materials Science · Physics 2016-08-14 F. Beiuşeanu , C. Horea , E. -V. Macocian , T. Jurcuţ , L. Vitos , L. Chioncel

We study metallic behavior and superconductivity in C$_{60}$ materials in terms of a tight binding model characterized by an intramolecular, nonretarded attraction. It was shown previously that, at intermediate coupling, the model possesees…

Condensed Matter · Physics 2007-05-23 Sanjoy K. Sarker

In mirror-symmetric systems, there is a possibility of the realization of extended gapless electronic states characterized as nodal lines or rings. Strain induced modifications to these states lead to emergence of different classes of nodal…

Mesoscale and Nanoscale Physics · Physics 2023-03-24 Ashutosh Singh , Maria Sebastian , Yuanping Chen , Po-Yao Chang , Alexey Belyanin

Using first principles pseudopotential density functional theory calculations, we find that terminating zigzag graphene nanoribbons (ZGNR) with monovalent alkali atoms at a reduced concentration has a dramatic impact on their properties. In…

Mesoscale and Nanoscale Physics · Physics 2016-08-14 Ozan Arı , İbrahim Dursun , R. Tuğrul Senger

Controlling the magnetic state of two-dimensional (2D) materials is crucial for spintronic applications. By employing data-mining and autonomous density functional theory calculations, we demonstrate the switching of magnetic properties of…

Materials Science · Physics 2024-03-11 Tom Barnowsky , Stefano Curtarolo , Arkady V. Krasheninnikov , Thomas Heine , Rico Friedrich

Magnetic properties of quasi one-dimensional vanadium-benzene nanowires (VBNW) are investigated theoretically with the absorption of gas molecules-NO and NO2. With the increase adsorption of NO on VBNW, the phase transition from half metal…

Materials Science · Physics 2017-07-25 Min Wang , Yan Zhou , Sui Kong Hark , Xi Zhu

We report the experimental observation of the transverse spin and associated spin-momentum locking of surface plasmon polaritons (SPPs) excited in a plasmonic single crystalline silver nanowire (AgNW). In contrast to the SPPs excited in…

Optics · Physics 2021-11-03 Chetna Taneja , Diptabrata Paul , G V Pavan Kumar