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The chirality-induced spin selectivity (CISS) effect has garnered significant interest in the field of molecular spintronics due to its potential for creating spin-polarized electrons without the need for a magnet. Recent studies devoted to…

Chirality describes the asymmetry between an object and its mirror image and manifests itself in diverse functionalities across all scales of matter - from molecules and aggregates to thin films and bulk chiral materials. A particularly…

In this short review a broad range of chiral phenomena observed in magnetic films (spin cycloid and skyrmion structures formation as well as chirality dependent domain wall motion) is considered under the perspective of spin…

强关联电子 · 物理学 2015-03-20 A. P. Pyatakov , A. S. Sergeev , F. A. Mikailzade , A. K. Zvezdin

In single molecular magnets, chiral vibrations carrying vibrational angular momentum ($\hat{L}^{\text{vib}}$) emerge due to the splitting of a doubly degenerate vibrational mode. Here, we identify a new type of effective spin-vibrational…

介观与纳米尺度物理 · 物理学 2025-05-19 Aman Ullah , Sergey A. Varganov , Yafis Barlas

Electrons which are slowly moving through chiral magnetic textures can effectively be described as if they where influenced by electromagnetic fields emerging from the real-space topology. This adiabatic viewpoint has been very successful…

材料科学 · 物理学 2018-10-23 Fabian R. Lux , Frank Freimuth , Stefan Blügel , Yuriy Mokrousov

Memory and logic devices that encode information in magnetic domains rely on the controlled injection of domain walls to reach their full potential. In this work, we exploit the chiral coupling induced by the Dzyaloshinskii-Moriya…

介观与纳米尺度物理 · 物理学 2020-03-27 T. Phuong Dao , Marvin Müller , Zhaochu Luo , Manuel Baumgartner , Aleš Hrabec , Laura J. Heyderman , Pietro Gambardella

Chiral matter has a structure that lacks inversion, mirror, and rotoreflection symmetry; thus, a given chiral material has either a right- or left-handed structure. In chiral matter, electricity and magnetism can be coupled in an exotic…

材料科学 · 物理学 2021-05-19 Tetsuya Furukawa , Yuta Watanabe , Naoki Ogasawara , Kaya Kobayashi , Tetsuaki Itou

Local magnetic fields in a molecule-based optically chiral magnet [Cr(CN)$_6$][Mn($S$)-pnH(H$_2$O)](H$_2$O) (GN-S) and its enantiomer (GN-R) are studied by means of muon spin rotation and relaxation (muSR). Detailed analysis of muon…

材料科学 · 物理学 2009-11-11 K. Ohishi , W. Higemoto , A. Koda , S. R. Saha , R. Kadono , K. Inoue , H. Imai , H. Higashikawa

Magnetic domain wall motion is at the heart of new magneto-electronic technologies and hence the need for a deeper understanding of domain wall dynamics in magnetic systems. In this context, numerical simulations using simple models can…

The domain structure in in-plane magnetized Fe/Ni/W(110) films is investigated using spin-polarized low-energy electron microscopy. A novel transition of the domain wall shape from a zigzag-like pattern to straight is observed as a function…

介观与纳米尺度物理 · 物理学 2021-08-26 Gong Chen , MacCallum Robertson , Heeyoung Kwon , Changyeon Won , Andreas K. Schmid , Kai Liu

The spinterface mechanism was suggested as a possible origin for the chirality induced spin-selectivity (CISS) effect, and was used to explain and reproduce, with remarkable accuracy, experimental data from transport experiments showing the…

介观与纳米尺度物理 · 物理学 2024-10-25 Oliver L. A. Monti , Yonatan Dubi

We have studied the magneto-optical Kerr effect and optical reflectance of perpendicular magnetized Co/Pt films on self-assembly two-dimensional polystyrene spheres. It is shown that the magneto-optical and the reflectance spectra are…

材料科学 · 物理学 2009-03-04 Z. Liu , L. Shi , Z. Shi , X. H. Liu , J. Zi , S. M. Zhou , S. J. Wei , J. Li

We review and extend the theory of chiral pumping of spin waves by magnetodipolar stray fields that generate unidirectional spin currents and asymmetric magnon densities. We illustrate the physical principles by two kinds of chiral…

介观与纳米尺度物理 · 物理学 2020-12-02 Tao Yu , Gerrit E. W. Bauer

Chiral magnetism, wherein there is a preferred sense of rotation of the magnetization, has become a key aspect for future spintronic applications. It determines the chiral nature of magnetic textures, such as skyrmions, domain walls or spin…

We use a sensitive magneto-optical microscopy technique to image the magnetization response of micron-scale ferromagnetic disks to changes in applied magnetic field. This differential technique relies on a modulated applied magnetic field…

介观与纳米尺度物理 · 物理学 2015-12-09 Robert Badea , Johnathon A. Frey , Jesse Berezovsky

We demonstrate the evolution of the micro-patterned magnetic domains in CoPd thin films pretreated with e-beam lithography and O2 plasma. During the days-long oxidation, significantly different behaviors of the patterned magnetic domains…

材料科学 · 物理学 2021-11-11 Wei-Hsiang Wang , Chak-Ming Liu , Tzu-Hung Chuang , Der-Hsin Wei , Wen-Chin Lin , Pei-hsun Jiang

Spin wave, the collective excitation of magnetic order, is one of the fundamental angular momentum carriers in magnetic systems. Understanding the spin wave propagation in magnetic textures lies in the heart of developing pure magnetic…

材料科学 · 物理学 2021-06-09 Jin Lan , Weichao Yu , Jiang Xiao

The knowledge of how the magnetization looks inside a ferromagnet is often hindered by the limitations of the available experimental methods that are sensitive only to the surface regions or limited in spatial resolution. We report the 3D…

Modulation of magnetization in magnetic Weyl semimetals leads to the shift of Weyl points in momentum space, which effectively serves as the chirality-dependent gauge field for the Weyl fermions. Here, we theoretically study such a…

介观与纳米尺度物理 · 物理学 2024-08-12 Akihiro Ozawa , Yasufumi Araki , Kentaro Nomura

The emergence of biomolecular homochirality requires both an initial symmetry-breaking event and a mechanism to amplify and preserve a chiral imbalance. Magnetic minerals have been shown to function as chiral agents through the…