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Chiral molecules are known to preferentially select electrons with a particular spin state, an effect termed chirality-induced spin selectivity (CISS). In this work, the transient CISS dynamics in a chiral molecule are investigated through…

Mesoscale and Nanoscale Physics · Physics 2025-11-03 Riley Stuermer , Collin VanEssen , Jacob Byers , Keith Ferrer , Prasad Gudem , Diego Kienle , Jonas Fransson , Mani Vaidyanathan

Te is a naturally p-doped semiconductor with a chiral structure, where an electrical current causes the conduction electrons to become spin polarized parallel to the transport direction. In this paper, we present a comprehensive theoretical…

Mesoscale and Nanoscale Physics · Physics 2024-03-05 Reena Gupta , Andrea Droghetti

The strongly interacting system created in ultrarelativistic nuclear collisions behaves almost as an ideal fluid with rich patterns of the velocity field exhibiting strong vortical structure. Vorticity of the fluid, via spin-orbit coupling,…

Nuclear Experiment · Physics 2024-10-30 Takafumi Niida , Sergei A. Voloshin

By assuming that there is no significant intrinsic polarization of the gluon, we have computed the polarized quark contributions to the proton's spin under SU(3) flavor symmetry breaking for the polarized sea and have performed a global…

High Energy Physics - Phenomenology · Physics 2009-10-28 Chung-Yi Wu

Compared to traditional structural chiral materials (e.g., DNA, helicene), topological chirality in trefoil knot molecules has demonstrated multiple remarkable advantages in chirality-induced spin selectivity (CISS), including ultra-high…

Materials Science · Physics 2025-07-29 Xi Sun , Kai-Yuan Zhang , Shu-Zheng Zhou , Hua-Hua Fu

The initialization of spin polarization in localized hole states is investigated using time-resolved Kerr rotation. We find that the sign of the polarization depends on the magnetic field, and the power and the wavelength of the circularly…

Mesoscale and Nanoscale Physics · Physics 2011-09-12 M. Studer , M. Hirmer , D. Schuh , W. Wegscheider , K. Ensslin , G. Salis

Chiral structures, breaking spatial inversion symmetry, exhibit non-zero chiroptical activity (COA) due to the interaction between their electric and magnetic responses under external electromagnetic fields, an effect that is otherwise…

Mesoscale and Nanoscale Physics · Physics 2023-09-06 Solmar Varela , Rafael Gutierrez , Gianaurelio Cuniberti , Ernesto Medina , Vladimiro Mujica

We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 L. P. Rokhinson , L. N. Pfeiffer , K. W. West

All-electrical control of spin transport in nanostructures has been the central interest and chal- lenge of spin physics and spintronics. Here we demonstrate on-chip spin polarizing/filtering actions by driving the gate-defined one…

Mesoscale and Nanoscale Physics · Physics 2012-11-13 T. -M. Chen , M. Pepper , I. Farrer , G. A. C. Jones , D. A. Ritchie

In quasi two-dimensional (2D) hole systems with an effective spin j=3/2, heavy hole-light hole splitting results in a quantization of angular momentum perpendicular to the 2D plane. The spin polarization of quasi 2D hole systems due to an…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 R. Winkler

Manipulation of spin-polarized electronic states of two-dimensional (2D) materials under ambient conditions is necessary for developing new quantum devices with small physical dimensions. Here, we explore spin-dependent electronic…

Mesoscale and Nanoscale Physics · Physics 2021-11-24 Rajibul Islam , Barun Ghosh , Carmine Autieri , Sugata Chowdhury , Arun Bansil , Amit Agarwal , Bahadur Singh

Spin-orbit torque (SOT) has been extensively studied as a key mechanism in spintronics applications. However, conventional SOT materials limit the spin polarization direction to the in-plane orientation, which is suboptimal for efficient…

Mesoscale and Nanoscale Physics · Physics 2025-03-20 Yifei Yang , Jian-Ping Wang

The elucidation of the mechanisms behind chiral-induced spin selectivity remains an outstanding scientific challenge. Here we consider the role of delocalised phonon modes in electron transport in chiral structures and demonstrate that spin…

Mesoscale and Nanoscale Physics · Physics 2023-01-12 Clemens Vittmann , James Lim , Dario Tamascelli , Susana F. Huelga , Martin B. Plenio

Many sets of polarization evolution equations have been suggested to describe the method of polarization buildup by spin filtering in storage rings. In this paper a generic system of polarization evolution equations describing spin…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. S. O'Brien

The problem of electron resonant and non-resonant scatterings on two magnetized barriers is studied in the one-dimension. The transfer-matrix is built up to exactly calculate the coefficient of the electron transmittance through the system…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Armen N. Kocharian , Avag S. Sahakyan , Ruzan M. Movsesyan

We propose a novel scheme to efficiently polarize and manipulate the electron spin in a quantum dot. This scheme is based on the spin-orbit interaction and it possesses following advantages: (1) The direction and the strength of the spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Qing-feng Sun , X. C. Xie

In this work, we employ first-principles simulations to investigate the spin polarization of CeO$_2$-(111) surface and its impact on interactions between a ceria support and Pt nanoparticles. For the first time, we report that the…

Materials Science · Physics 2025-06-06 Byungkyun Kang , Joshua L. Vincent , Peter A. Crozier , Qiang Zhu

We have employed the constrained variational method to study the influence of spin polarization on the ground state properties of liquid $^3{\rm He}$. The spin polarized phase, we have found, has stronger correlation with respect to the…

Statistical Mechanics · Physics 2009-11-13 G. H. Bordbar , S. M. Zebarjad , M. R. Vahdani , M. Bigdeli

The ferroelectricity of the spiral magnets LiCu2O2 and LiCuVO4 was examined by calculating the electric polarizations of their spin spiral states on the basis of density functional theory with spin-orbit coupling. Our work unambiguously…

Materials Science · Physics 2011-11-10 H. J. Xiang , M. -H. Whangbo

The generation mechanisms of electron spin polarization (ESP) of charge carriers (electrons and holes, called "doublets") in doublet-doublet recombination and triplet-doublet quenching in disordered organic semiconductors are analyzed in…

Materials Science · Physics 2015-06-04 A. I. Shushin