216 citations · 640 across the 22 of their papers we have counts for
13 papers · 1 filter
Electron Spin Polarization as a Predictor of Chiroptical Activity in Helical Molecules
Solmar Varela, Rafael Gutierrez, Gianaurelio Cuniberti +2
Chiral structures, breaking spatial inversion symmetry, exhibit non-zero chiroptical activity (COA) due to the interaction between their electric and magnetic responses under exter…
Spin polarization induced by decoherence in a tunneling one-dimensional Rashba model
S. Varela, M. Peralta, V. Mujica +2
Basic questions on the nature of spin polarization in two terminal systems and the way in which decoherence breaks Time-Reversal Symmetry (TRS) are analyzed. We exactly solve sever…
The contribution of intermolecular spin interactions to the London dispersion forces between chiral molecules
M. Geyer, R. Gutierrez, V. Mujica +3
Dispersion interactions are one of the components of van der Waals (vdW) forces, which play a key role in the understanding of intermolecular interactions in many physical, chemica…
Role of Exchange Interactions in the Magnetic Response and Intermolecular Recognition of Chiral Molecules
Arezoo Dianat, Rafael Gutierrez, Hen Alpern +6
The physical origin of the so-called chirality-induced spin selectivity (CISS) effect has puzzled experimental and theoretical researchers over the past few years. Early experiment…
Response to Comment on: Tunneling in DNA with Spin Orbit coupling
Solmar Varela, Iskra Zambrano, Bertrand Berche +2
The comment by O. Entin-Wohlman, A. Aharony, and Y. Utsumi, on our paper S. Varela, I. Zambrano, B. Berche, V. Mujica, and E. Medina, Phys. Rev. B 101, 241410(R) (2020) makes a few…
A Chirality-Based Quantum Leap
Clarice D. Aiello, Muneer Abbas, John M. Abendroth +41
Chiral degrees of freedom occur in matter and in electromagnetic fields and constitute an area of research that is experiencing renewed interest driven by recent observations of th…
Spin-orbit interaction and spin selectivity for tunneling electron transfer in DNA
Solmar Varela, Iskra Zambrano, Bertrand Berche +2
Electron transfer (ET) in biological molecules such as peptides and proteins consists of electrons moving between well defined localized states (donors to acceptors) through a tunn…
Intrinsic Rashba coupling due to Hydrogen bonding in DNA
S. Varela, B. Montañes, F. López +4
We present an analytical model for the role of hydrogen bonding on the spin-orbit coupling of model DNA molecule. Here we analyze in detail the electric fields due to the polarizat…
DNA mechanical deformations and chiral spin selectivity
Solmar Varela, Vladimiro Mujica, Ernesto Medina
The strength of the spin-orbit interaction relevant to transport in a low dimensional structure depends critically on the relative geometrical arrangement of current carrying orbit…
Continuum model for chiral induced spin selectivity in helical molecules
Ernesto Medina, Luis A. González-Arraga, Daniel Finkelstein-Shapiro +2
A minimal model is exactly solved for electron spin transport on a helix. Electron transport is assumed to be supported by well oriented type orbitals on base molecules formi…
Chiral molecular films as electron polarizers and polarization modulators
Ernesto Medina, Floralba López, Mark Ratner +1
Recent experiments on electron scattering through molecular films have shown that chiral molecules can be efficient sources of polarized electrons even in the absence of heavy nucl…
Current and noise in a model of an AC-STM molecule-metal junction
R. Guyon, T. Jonckheere, V. Mujica +2
The transport properties of a simple model for a finite level structure (a molecule or a dot) connected to metal electrodes in an alternating current scanning tunneling microscope…
Entangled electronic state via an interacting quantum dot
Gladys León, Otto Rendon, Horacio M. Pastawski +2
We study a device for entangling electrons as cotunneling occurs through a quantum dot where on-site electron-electron interactions are in place. The main advantage of this dev…