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Related papers: Knot-Driven Spin Selectivity: Topological Chiralit…

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We report that spin polarization occurs over millimeters in polycrystalline bulk samples of chiral disilicide NbSi$_2$ and TaSi$_2$. As previously demonstrated in the experiments using single crystals of NbSi$_2$ and TaSi$_2$, electrical…

Materials Science · Physics 2021-11-08 Hiroaki Shishido , Rei Sakai , Yuta Hosaka , Yoshihiko Togawa

When an electron passes through a chiral molecule there is a high probability for a correlation between the momentum and spin of the charge, thus leading to spin polarized current. This phenomenon is known as the chiral induced spin…

Mesoscale and Nanoscale Physics · Physics 2021-03-09 Idan Meirzada , Nir Sukenik , Galya Haim , Shira Yochelis , Yossi Paltiel , Nir Bar-Gill

Circuit topology employs fundamental units of entanglement, known as soft contacts, for constructing knots from the bottom up, utilising circuit topology relations, namely parallel, series, cross, and concerted relations. In this article,…

Soft Condensed Matter · Physics 2023-08-23 Jonas Berx , Alireza Mashaghi

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 here present a variable-range hopping model to describe the chirality-induced spin selectivity along the DNA double helix. In this model, DNA is considered as a one-dimensional disordered system, where electrons are transported by chiral…

Mesoscale and Nanoscale Physics · Physics 2024-05-01 Ryotaro Sano , Takeo Kato

The theoretical dispersion of higher fold excitations are typically governed by space group symmetry. However, physical factors affecting local structural and electronic environment such as atomic arrangement, orbital overlaps, etc.,…

Materials Science · Physics 2026-04-07 Roopam Pandey , Sudhir K Pandey

In this study, we propose an alternative route to achieving topological superconductivity (TSC). Our approach applies to a new class of correlated noncentrosymmetric materials that host two spin-split Fermi surfaces with identical spin…

Superconductivity · Physics 2026-01-28 Lichuan Wang , Ran Wang , Xinliang Huang , Xianxin Wu , Ning Hao

Thermodynamic properties of the twisted three-leg spin tube under magnetic field are studied by the finite-$T$ density-matrix renormalization group method. The specific heat, spin, and chiral susceptibilities of the infinite system are…

Strongly Correlated Electrons · Physics 2018-05-23 Takuya Ito , Chihiro Iino , Naokazu Shibata

One of the most striking manifestations of electronic properties of topological insulators is the dependence of the photocurrent direction on the helicity of circularly polarized optical excitation. The helicity dependent photocurrents,…

We report on the possibility to detect hinge spin polarization in magnetic topological insulators by resistance measurements. By implementing a three-dimensional model of magnetic topological insulators into a multi-terminal device with…

Mesoscale and Nanoscale Physics · Physics 2021-04-29 Pablo M. Perez-Piskunow , Stephan Roche

Three-dimensional topological insulators (TIs) are characterized by spin-polarized Dirac-cone surface states that are protected from backscattering by time-reversal symmetry. Control of the spin polarization of topological surface states…

Mesoscale and Nanoscale Physics · Physics 2016-06-09 J. Sánchez-Barriga , E. Golias , A. Varykhalov , J. Braun , L. V. Yashina , R. Schumann , J. Minár , H. Ebert , O. Kornilov , O. Rader

The chirality-induced spin selectivity (CISS) effect has been confirmed experimentally for a large class of organic molecules. Adequately modeling the effect remains a challenging task, with both phenomenological models and first-principle…

Mesoscale and Nanoscale Physics · Physics 2020-06-24 Matthias Geyer , Rafael Gutierrez , Gianaurelio Cuniberti

Robustness to disorder - the defining property of any topological state - has been mostly tested in low-disorder translationally-invariant materials systems where the protecting underlying symmetry, such as time reversal, is preserved. The…

Chiral structures that produce asymmetric spin-phonon coupling can theoretically generate spin-phonon polarons -- quasiparticles exhibiting non-degenerate spin states with phonon displacements. These quasiparticles are speculated to be the…

Recently, the chiral-induced spin selectivity in molecular systems has attracted extensive interest among the scientific communities. Here, we investigate the effect of the gate voltage on spin-selective electron transport through the…

Mesoscale and Nanoscale Physics · Physics 2015-09-16 Ting-Rui Pan , Ai-Min Guo , Qing-Feng Sun

Knots, characterized by topological invariants called the Hopf number $H$, arise from the intertwining of strings and exhibit diverse configurations. The knot structures have recently been observed in condensed matters, as examplified by a…

Mesoscale and Nanoscale Physics · Physics 2025-12-01 Shoya Kasai , Shun Okumura , Yukitoshi Motome

Interatomic hopping mediated by spin-orbit coupling (SOC) entangles spin, orbital and sublattice degrees of freedom of electrons, leading to the emergence of intriguing phenomena such as novel topological insulators and exotic…

Materials Science · Physics 2024-07-16 Masaki Kato , Masao Ogata

We describe a new method for pulsed spin order transfer (SOT) of parahydrogen induced polarization (PHIP) that enables close to 100 % polarization in incompletely 2H-labeled molecules by exciting only the desired protons in a…

Magnetic devices are a leading contender for implementing memory and logic technologies that are nonvolatile, that can scale to high density and high speed, and that do not suffer wear-out. However, widespread applications of magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 A. R. Mellnik , J. S. Lee , A. Richardella , J. L. Grab , P. J. Mintun , M. H. Fischer , A. Vaezi , A. Manchon , E. -A. Kim , N. Samarth , D. C. Ralph

Twisted nodal superconductors have been shown to exhibit chiral topological superconductivity under broken time-reversal symmetry. Here we show how a time-reversal preserving topological superconductivity can be induced in nodal triplet…

Superconductivity · Physics 2024-06-12 Kevin P. Lucht , Pavel A. Volkov , J. H. Pixley