67 citations · 210 across the 10 of their papers we have counts for
10 papers
Intrinsic emergence of Majorana modes in Luttinger j=3/2 systems
Julian Benedikt Mayer, Miguel A. Sierra, Ewelina M. Hankiewicz
We analyze theoretically two different setups for s-wave superconductivity (SC) proximitized particles in Luttinger materials that are able to host Majorana bound states (M…
Spin-polarized electron transmission in DNA-like systems
Miguel A. Sierra, David Sanchez, Rafael Gutierrez +3
The helical distribution of the electronic density in chiral molecules, such as DNA and bacteriorhodopsin, has been suggested to induce a spin-orbit coupling interaction that may l…
Fluctuation-driven Coulomb drag in interacting quantum dot systems
Miguel A. Sierra, David Sánchez, Antti-Pekka Jauho +1
Coulomb drag between nanoscale conductors is of both fundamental and practical interest. Here, we theoretically study drag in a double quantum-dot (QD) system consisting of a biase…
A thermally driven out-of-equilibrium two-impurity Kondo system
Miguel A. Sierra, Rosa Lopez, Jong Soo Lim
The archetypal two-impurity Kondo problem in a serially-coupled double quantum dot is investigated in the presence of a thermal bias . The slave-boson formulation is employed to…
How to distinguish between interacting and noninteracting molecules in tunnel junctions
Miguel A. Sierra, David Sánchez, Alvar R. Garrigues +3
Recent experiments demonstrate a temperature control of the electric conduction through a ferrocene-based molecular junction. Here we examine the results in view of determining mea…
Heat current through an artificial Kondo impurity beyond linear response
Miguel A. Sierra, David Sanchez
We investigate the heat current of a strongly interacting quantum dot in the presence of a voltage bias in the Kondo regime. Using the slave- boson mean-field theory, we discuss th…
Fate of the spin-\frac{1}{2} Kondo effect in the presence of temperature gradients
Miguel A. Sierra, David Sanchez, Rosa Lopez
We consider a strongly interacting quantum dot connected to two leads held at quite different temperatures. Our aim is to study the behavior of the Kondo effect in the presence of…
Interactions and thermoelectric effects in a parallel-coupled double quantum dot
Miguel A. Sierra, M. Saiz-Bretin, F. Dominguez-Adame +1
We investigate the nonequilibrium transport properties of a double quantum dot system connected in parallel to two leads, including intradot electron-electron interaction. In the a…
Nonlinear heat conduction in Coulomb-blockaded quantum dots
Miguel A. Sierra, David Sanchez
We analyze the heat current flowing across interacting quantum dots within the Coulomb blockade regime. Power can be generated by either voltage or temperature biases. In the forme…
Strongly nonlinear thermovoltage and heat dissipation in interacting quantum dots
Miguel A. Sierra, David Sanchez
We investigate the nonlinear regime of charge and energy transport through Coulomb-blockaded quantum dots. We discuss crossed effects that arise when electrons move in response to…