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Spin polarization in chiral molecules is a magnetic molecular response associated with electron transport and enantioselective bond polarization that occurs even in the absence of an external magnetic field. An unexpected finding by Santos…

Chirality pervades multiple scientific domains-physics, chemistry, biology, and astronomy-and profoundly influences their foundational principles. Recently, the chirality-induced spin selectivity (CISS) phenomenon has captured significant…

Theoretical investigation demonstrates that the composite bilayer (i.e., chiral-magnetic/ferroelectric bilayer) offers the possibility of electric-induced magnetic Skyrmions [Phys. Rev. B \textbf{94}, 014311 (2016)]. In this Article, we…

介观与纳米尺度物理 · 物理学 2016-08-29 Zidong Wang , Malcolm Grimson

Chirality-induced spin selectivity (CISS) has been extensively studied over the past two decades. While current-induced spin polarization in chiral molecules is widely recognized as the fundamental principle of the CISS, only a few studies…

材料科学 · 物理学 2023-08-25 Kouta Kondou , Shinji Miwa , Daigo Miyajima

A common scenario of magnetoelectric coupling in multiferroics is the electric polarization induced by spatially modulated spin structures. It is shown in this paper that the same mechanism works in magnetic dielectrics with inhomogeneous…

材料科学 · 物理学 2012-11-13 A. P. Pyatakov , G. A. Meshkov , A. K. Zvezdin

The chirality-dependent magnetoelectric properties of Neel-type domain walls in iron garnet films is observed. The electrically driven magnetic domain wall motion changes the direction to the opposite with the reversal of electric polarity…

材料科学 · 物理学 2012-05-23 A. P. Pyatakov , D. A. Sechin , A. V. Nikolaev , E. P. Nikolaeva , A. S. Logginov

The interplay of magnetic interactions in chiral multilayer films gives rise to nanoscale topological spin textures, which form attractive elements for next-generation computing. Quantifying these interactions requires several specialized,…

We demonstrate the possibility of a coupling between the magnetization direction of a ferromagnet and the tilting angle of adsorbed achiral molecules. To illustrate the mechanism of the coupling, we analyze a minimal Stoner model that…

介观与纳米尺度物理 · 物理学 2023-09-15 Ragheed Alhyder , Alberto Cappellaro , Mikhail Lemeshko , Artem G. Volosniev

We propose a new type of a chiral metamaterial based on an ensemble of artificial molecules formed by three identical quantum-dots in a triangular arrangement. A static magnetic field oriented perpendicular to the plane breaks mirror…

介观与纳米尺度物理 · 物理学 2014-12-04 Panagiotis Kotetes , Pei-Qing Jin , Michael Marthaler , Gerd Schön

Chiral induced spin selectivity is a phenomenon that has been attributed to chirality, spin-orbit interactions, and non-equilibrium conditions, while the role of electron exchange and correlations have been investigated only marginally…

介观与纳米尺度物理 · 物理学 2021-04-28 J. Fransson

In ferromagnetic thin films, the presence of an out-of-plane component of the magnetic anisotropy may induce a transition from planar to stripe-like magnetic domains above a critical thickness, $t_c$. Because of the changes in the domain…

材料科学 · 物理学 2024-10-07 Augusto Roman , Javier Gomez , Alejandro Butera , Paolo Vavassori , Laura B. Steren

Magnetic gels with embedded micro/nano-sized magnetic particles in crosslinked polymer networks can be actuated by external magnetic fields, with changes in their internal microscopic structures and macroscopic mechanical properties. We…

软凝聚态物质 · 物理学 2024-03-21 Xuefeng Wei , Gaspard Junot , Ramin Golestanian , Xin Zhou , Yanting Wang , Pietro Tierno , Fanlong Meng

Exploring and manipulating the orbital degrees of freedom in solids has become a fascinating research topic in modern magnetism. Here, we demonstrate that spin waves can provide a way to control electronic orbital magnetism by the mechanism…

A magneto-optically active thin film of Rb$_{j}$Co$_{k}$[Fe(CN)$_{6}$]$_{l}$ $\cdot$$n$H$_{2}$O has been prepared using a sequential assembly method. Upon irradiation with light and at 5 K, the net magnetization of the film increased when…

其他凝聚态物理 · 物理学 2016-08-16 J. -H. Park , E. Čižmár , M. W. Meisel , Y. D. Huh , F. Frye , S. Lane , D. R. Talham

Chiral oligopeptide monolayers were adsorbed on a ferromagnetic surface and their magnetoresistance was measured as a function of the angle between the magnetization of the ferromagnet and the surface normal. These measurements were…

介观与纳米尺度物理 · 物理学 2024-02-06 Tapan Kumar Das , Ron Naaman , Jonas Fransson

Chirality as internal degree of freedom of a mesoscopic domain wall inside a quasi-one-dimensional fixture can be controlled by spin-polarized current for ferro- as well as anti-ferro-magnetic domain walls. We show that the current density…

介观与纳米尺度物理 · 物理学 2024-04-17 Oleksiy Kolezhuk , Roman Teslia , Ihor Buryak , Olena Gomonay

The seeding of vortex domain walls in V-shaped nanowires by a magnetic field has been investigated via simulations and Scanning Electron Microscopy with Polarization Analysis (SEMPA). It is found that the orientation of the magnetic field…

介观与纳米尺度物理 · 物理学 2009-12-02 S. Hankemeier , A. Kobs , R. Froemter , H. P. Oepen

In conventional Kerr- and Faraday microscopy the sample is illuminated with plane-polarised light and a magnetic domain contrast is generated by an analyser making use of the Kerr- or Faraday rotation. In this paper we demonstrate…

材料科学 · 物理学 2021-07-14 R. Schäfer , Peter M. Oppeneer , Alexey Ognev , Alexander Samardak , Ivan V. Soldatov

The effect of x-rays on an orbital and charge ordered epitaxial film of a Pr$_{0.5}$Ca$_{0.5}$MnO$_{3}$ is presented. As the film is exposed to x-rays, the antiferromagnetic response increases and concomitantly the conductivity of the film…

强关联电子 · 物理学 2012-10-11 M. Garganourakis , V. Scagnoli , S. W. Huang , U. Staub , H. Wadati , M. Nakamura , V. A. Guzenko , M. Kawasaki , Y. Tokura

Recent experiments suggest that the conditions for ferromagnetic order in, e.g., magnetite, can be modified by adsorption of chiral molecules. Especially, the coercivity of magnetite was increased by nearly 100 \%, or 20 times the earth…