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Article
Multidisciplinary Sciences
Yuan Wang et al.
National Science Review
(2023)
Article
Materials Science, Multidisciplinary
Ping Wang et al.
Summary: We demonstrate the inverse Orbital Hall effect and observe orbitronic terahertz emission in Ti and Mn materials. The generated orbital current via spin-orbit transition can be converted to charge current through the inverse Orbital Hall effect. The inserted W layer further enhances the orbitronic terahertz emission by converting the orbital-charge current in Ti and Mn layers. The cooperation between the inverse Orbital Hall effect and the inverse Spin Hall effect can manipulate the orbitronic terahertz emission in different sample configurations. Our findings unveil the physical mechanism of condensed matter physics and facilitate the design of spin-orbitronic devices and terahertz emitters.
NPJ QUANTUM MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wenzhe Zhou et al.
Summary: By manipulating biaxial strain, the valley splitting of antiferromagnetic monolayer MnPTe3 can be changed, which is attributed to the changes in orbital composition and the contribution of different sublattice atoms. The consistency between the antiferromagnetism and the valley splitting variations is observed.
Article
Chemistry, Multidisciplinary
Changsong Xu et al.
Summary: This study develops an accurate model to understand the magnetic states in Fe3GeTe2, and reveals the critical role of multiple fourth-order interactions, including symmetry and spin-orbit couplings, in stabilizing different types of skyrmions.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Yan Shao et al.
Summary: In this study, the surface octahedral tilt of exfoliated 2D Ruddlesden-Popper perovskites (RPPs) was directly observed using scanning tunneling microscopy (STM), which was found to agree with theoretical calculations. The surface-enhanced octahedral tilt is correlated to excitonic redshift observed in photoluminescence (PL) and enhances inversion asymmetry and Rashba spin splitting.
NATURE COMMUNICATIONS
(2022)
Review
Multidisciplinary Sciences
Jiaxu Zhang et al.
Summary: Metal chalcogenide supertetrahedral clusters (MCSCs) are of great significance for the development of crystalline porous framework materials and atomically precise cluster chemistry. They have attracted research interest in their synthetic and structural chemistry, as well as their applications in different fields. MCSCs have similar properties to semiconductor nanocrystals but avoid their drawbacks, making them suitable for various applications. This review provides a comprehensive overview of three decades of research on MCSCs and highlights their potential in future studies.
NATIONAL SCIENCE REVIEW
(2022)
Article
Chemistry, Physical
Francesco Calavalle et al.
Summary: This study explores the relationship between symmetry, relativistic effects, and electronic transport in chiral materials, and demonstrates the all-electrical generation, manipulation, and detection of spin polarization in chiral single-crystalline tellurium nanowires. The orientation of the electrically generated spin polarization is determined by the nanowire handedness and follows the current direction, while its magnitude can be manipulated by an electrostatic gate.
Article
Multidisciplinary Sciences
Geng LjD et al.
Summary: This study reports the discovery of a novel unidirectional charge density wave (CDW) order on the surface of chiral crystal CoSi, which is a unique Weyl semimetal with unconventional chiral fermions. The CDW is incommensurate with lattice momentum and crystalline symmetry directions, and exhibits a pi phase shift in the layer stacking direction. The tunneling spectrum shows an energy gap that modulates spatially with the CDW wave vector.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Sang-Wook Cheong et al.
Summary: Chirality is important in various fields, including DNA functionality, vine climbing, and piezoelectricity of quartz crystals. Magnetic chirality refers to the chirality in spin-ordered states or spin textures at the atomic or mesoscopic scale. It is not affected by time-reversal operations, and chirality prime (C') means the breaking of time-reversal symmetry in addition to all mirror symmetries with free spatial rotations. This article discusses a few examples of magnetic chirality and C', as well as their emergent physical properties, some of which have been observed recently while others need experimental confirmation.
NPJ QUANTUM MATERIALS
(2022)
Article
Multidisciplinary Sciences
Qi Qian et al.
Summary: The discovery of chiral-induced spin selectivity (CISS) allows the manipulation of spin orientation without external magnetic fields, opening up new possibilities for spintronic device designs. However, current systems often suffer from issues such as high inhomogeneity, low spin selectivity, limited stability, and difficulties in forming robust spintronic devices. In this study, a new class of chiral molecular intercalation superlattices (CMIS) was developed as a solid-state chiral material platform for exploring CISS. The CMIS exhibited highly ordered superlattice structures and showed chirality-dependent signals, enabling the creation of spin-selective tunnelling junctions with significant tunnelling magnetoresistance ratio and spin polarization ratio. With the wide range of 2DACs and chiral molecules available, CMIS offer a rich family of artificial chiral materials to investigate the CISS effect and explore its potential for new spintronic devices.
Review
Chemistry, Multidisciplinary
Haipeng Lu et al.
Summary: The relationship between structural asymmetry and optoelectronic properties of functional materials is an active research field. The chiral-induced spin selectivity (CISS) effect controls spin populations without magnetic components and has been mainly studied in chiral organic molecules and their assemblies. Introducing chirality into semiconductors, such as chiral metal halide semiconductors (MHSs), allows for control over charge, spin, and light without magnetic components, leading to breakthroughs in our understanding of CISS and spin-dependent optoelectronic properties.
NATURE REVIEWS CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xu Chen et al.
Summary: This article introduces a superatomic crystal material, Au6Te12Se8, which exhibits a competition between superatomic charge-density wave (S-CDW) and superconductivity under external pressure. The S-CDW has the lowest threshold under external pressure compared to other atomic compounds and a second superconducting phase emerges above 7.3 GPa. The study found that pressure can induce mesoscopic slip of the superatoms and a 2D-3D transition of the Fermi surface topology, explaining the observed dimensional crossover of conductivity and re-entrant superconductivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Kunihiro Yananose et al.
Summary: This study reveals the unique physical phenomena of twisted homo-bilayers of collinear antiferromagnetic CrI3. The twisting activates the pyroelectricity and the magneto-optical Kerr effect, which can be controlled by the twist angle to manipulate the electric polarization and Kerr angle.
Article
Materials Science, Multidisciplinary
M. Umar Farooq et al.
Summary: This study systematically investigates the interplay between Dresselhaus spin-orbit coupling (DSOC) and Rashba spin-orbit coupling (RSOC) and their effects on spin Hall effect (SHE) in monoand bilayer InSe. The introduction of Rashba interaction in monolayer InSe increases Zeeman-like spin splitting and enhances spin Hall conductivity (SHC), while the SHC in the unperturbed centrosymmetric AB stacked bilayer stays insignificant in a wide energy range. On the other hand, the AB' stacked bilayer with intrinsic RSOC shows comparable SHC to the AB stacked bilayer with an external electric field, and the spin-momentum locking in the AB' stacked bilayer is switchable by a gate voltage.
Article
Materials Science, Multidisciplinary
Chaoyu Li et al.
Summary: Using first-principles calculations, this study identifies two extreme states in a synthesized binary fulleride, a superatomic Dirac state and a flat band with extreme effective mass. The coexistence of these states in a semiconductor opens the possibility of constructing Dirac field-effect devices with ultrafast carrier transport.
Article
Physics, Multidisciplinary
Kohei Shiota et al.
Summary: A spin-polarized state was studied in chiral disilicide crystals NbSi2 and TaSi2 at room temperature without magnetic fields, where long-range spin transport occurred over ten micrometers. The conversion coefficient in the current-voltage characteristics adhered to a sum rule, while a diamagnetic nature suggested itinerant electron spins rather than localized ones were responsible for the spin polarization. In addition, a robust protection of spin polarization was observed in chiral crystals over long distances.
PHYSICAL REVIEW LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Kenta Kimura et al.
Summary: Chiral-lattice magnets can exhibit various physical phenomena when time-reversal symmetry is broken by their magnetism, even in antiferromagnets without magnetization. An unconventional coupling between chirality and magnetic quadrupoles was observed in a chiral-lattice antiferromagnet, mediated by previously unrecognized magnetic octupoles emerging from chirality.
NPJ QUANTUM MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
M. Preissinger et al.
Summary: Magnetic anisotropy is found to significantly increase in CoZnMn-type cubic chiral magnets at lower temperatures, with significant variations in both strength and character when changing the Co/Mn ratio. Further studies are needed for a quantitative, unified description of known stable and metastable modulated spin textures, as well as for systematically exploring novel structures in this class of skyrmion hosts.
NPJ QUANTUM MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Kunihiro Yananose et al.
Summary: The study found that twist chirality in twisted bilayer graphene induces changes in atomic displacement and spin textures, with different twist angles and chirality affecting the structure and properties.
Review
Physics, Applied
See-Hun Yang et al.
Summary: Spin currents generated by chiral structures can manipulate chiral topological magnetic excitations through chirality acquired in a spin-orbit interaction. When chiral domain walls form composite walls via antiferromagnetic exchange coupling, novel phenomena such as exchange coupling torque and domain wall drag are observed. This review discusses the recent progress in spin currents derived from or acting on chiral structures and their potential applications.
NATURE REVIEWS PHYSICS
(2021)
Article
Physics, Multidisciplinary
M. Sakano et al.
PHYSICAL REVIEW LETTERS
(2020)
Review
Chemistry, Multidisciplinary
Jiaxu Zhang et al.
ACCOUNTS OF CHEMICAL RESEARCH
(2020)
Article
Physics, Multidisciplinary
G. Gatti et al.
PHYSICAL REVIEW LETTERS
(2020)
Article
Multidisciplinary Sciences
Jian Cui et al.
NATURE COMMUNICATIONS
(2019)
Article
Multidisciplinary Sciences
Takamasa Tsukamoto et al.
NATURE COMMUNICATIONS
(2019)
Review
Chemistry, Multidisciplinary
Lingling Mao et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Multidisciplinary Sciences
M. M. Otrokov et al.
Article
Chemistry, Multidisciplinary
Yao Wang et al.
MATERIALS HORIZONS
(2018)
Article
Chemistry, Physical
Guoqing Chang et al.
Article
Materials Science, Multidisciplinary
Junfeng Qiao et al.
Review
Materials Science, Multidisciplinary
Wei Han et al.
NPJ QUANTUM MATERIALS
(2018)
Article
Multidisciplinary Sciences
J. G. Guo et al.
NATURE COMMUNICATIONS
(2017)
Review
Chemistry, Multidisciplinary
Wei Ma et al.
Article
Materials Science, Multidisciplinary
Houlong L. Zhuang et al.
Article
Chemistry, Multidisciplinary
Mikael Kepenekian et al.
Article
Materials Science, Multidisciplinary
S. Wimmer et al.
Article
Materials Science, Multidisciplinary
M. Seemann et al.
Article
Physics, Multidisciplinary
J. Jiang et al.
PHYSICAL REVIEW LETTERS
(2015)
Article
Nanoscience & Nanotechnology
Atsushi Togo et al.
SCRIPTA MATERIALIA
(2015)
Article
Multidisciplinary Sciences
Lukas Zhao et al.
NATURE COMMUNICATIONS
(2015)
Article
Multidisciplinary Sciences
Xavier Roy et al.
Review
Physics, Condensed Matter
M. Gradhand et al.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2012)
Review
Chemistry, Physical
Tomas Jungwirth et al.
Article
Physics, Multidisciplinary
Haijun Zhang et al.
Article
Multidisciplinary Sciences
S. Muehlbauer et al.
Review
Chemistry, Multidisciplinary
T. Mallat et al.
Article
Materials Science, Multidisciplinary
Prasenjit Ghosh et al.
Article
Chemistry, Physical
J Paier et al.
JOURNAL OF CHEMICAL PHYSICS
(2006)
Article
Physics, Multidisciplinary
GY Guo et al.
PHYSICAL REVIEW LETTERS
(2005)
Article
Materials Science, Multidisciplinary
R Winkler
Article
Physics, Multidisciplinary
GLJA Rikken et al.
PHYSICAL REVIEW LETTERS
(2001)
