308 citations · 1.4k across the 30 of their papers we have counts for
16 papers · 1 filter
Chiral currents in gold nanotubes
D. Zs. Manrique, J. Cserti, C. J. Lambert
Results are presented for the electron current in gold chiral nanotubes (AuNTs). Starting from the band structure of (4,3) and (5,3) AuNTs, we find that the magnitude of the chiral…
Oscillating chiral currents in nanotubes: a route to nanoscale magnetic test tubes
C. J. Lambert, S. W. D. Bailey, J. Cserti
With a view to optimising the design of carbon-nanotube (CNT) windmills and to maximising the internal magnetic field generated by chiral currents, we present analytical results fo…
Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires
V. M. García-Suárez, C. J. Lambert
We study the electronic and transport properties of two novel molecular wires made of atomic chains of carbon atoms (polyynes) capped with either, benzene-thiols or pyridines. Whil…
Non-universal behavior of the parity effect in monovalent atomic wires
Péter Major, V. M. García-Suárez, S. Sirichantaropass +4
We propose a mixed analytical-ab-initio method for the accurate calculation of the conductance in monovalent atomic wires. The method relies on the most general formula for ballist…
Quantum-classical correspondence in the wavefunctions of Andreev billiards
A. Kormanyos, Z. Kaufmann, J. Cserti +1
We present a classical and quantum mechanical study of an Andreev billiard with a chaotic normal dot. We demonstrate that in general the classical dynamics of these normal-supercon…
Non-local current correlations in ferromagnet/superconductor nanojunctions
C. J. Lambert, J. Koltai, J. Cserti
When two fully polarized ferromagnetic (F) wires with opposite polarizations make contact with a spin-singlet superconductor, a potential-induced current in wire 1 induces a non-lo…
Ring--Shaped Andreev Billiards in Quantizing Magnetic Fields
J. Cserti, P. Polinák, G. Palla +2
We present a detailed semiclassical study of a clean disk--shaped insulator--normal-metal--superconductor hybrid system in a magnetic field. It is based on an exact secular equatio…
Proximity-induced sub-gaps in Andreev billiards
J. Cserti, A. Kormányos, Z. Kaufmann +2
We examine the density of states of an Andreev billiard and show that any billiard with a finite upper cut-off in the path length distribution will possess an energy gap on…
Weak localization correction to the FS interface resistance
Edward McCann, Vladimir. I. Fal'ko, A. F. Volkov +1
The classical resistance of a contact between a ferromagnet (F) and a superconductor (S) acquires an additional contact term as compared to the contact between a ferromagnet and a…
Enhancement of GMR due to spin-mixing in magnetic multilayers with a superconducting contact
F. Taddei, S. Sanvito, C. J. Lambert
We study the Giant Magnetoresistance (GMR) ratio in magnetic multiayers with a single superconducting contact in the presence of spin-mixing processes. It has been recently shown t…
Correlations in optical phonon spectra of complex solids
G. Fagas, Vladimir I. Fal'ko, C. J. Lambert +1
Spectral correlations in the optical phonon spectrum of a solid with a complex unit cell are analysed using the Wigner-Dyson statistical approach. Despite the fact that all force c…
Fractional quantum conductance in carbon nanotubes
S. Sanvito, Y. -K. Kwon, D. Tománek +1
Using a scattering technique based on a parametrized linear combination of atomic orbitals Hamiltonian, we calculate the ballistic quantum conductance of multi-wall carbon nanotube…
Superconducting Proximity Effect and Universal Conductance Fluctuations
Tero T. Heikkila, Martti M. Salomaa, C. J. Lambert
We examine universal conductance fluctuations (UCFs) in mesoscopic normal-superconducting-normal (N-S-N) structures using a numerical solution of the Bogoliubov - de Gennes equatio…
Crossover between ballistic and diffusive regime of the spin-conductance and CPP-GMR in magnetic multilayered nanostructures
S. Sanvito, C. J. Lambert, J. H. Jefferson
We analyze the interplay between disorder and band structure in current perpendicular to the planes (CPP) giant magnetoresistance (GMR). We consider finite magnetic multilayers att…
Breakdown of the resistor model of CPP-GMR in magnetic multilayered nanostructures
S. Sanvito, C. J. Lambert, J. H. Jefferson
We study the effect on CPP GMR of changing the order of the layers in a multilayer. Using a tight-binding simple cubic two band model (s-d), magneto-transport properties are calcul…
General Green's function formalism for transport calculations with spd-Hamiltonians and giant magnetoresistance in Co and Ni based magnetic multilayers
S. Sanvito, C. J. Lambert, J. H. Jefferson +1
A novel, general Green's function technique for elastic spin-dependent transport calculations is presented, which (i) scales linearly with system size and (ii) allows straightforwa…