Material Physics Center

Electron spin resonance in scanning probe microscopy: From single‐spin spectroscopy to atomically engineered quantum operations

Abstract Electron spin resonance (ESR) is one of the most powerful spectroscopic methods for probing systems with unpaired electronic spins. Conventional ESR has usually relied on the detection of large spin ensembles, thereby averaging over local environments and suppressing mic...

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

ABSTRACT The intrinsically weak nonlinear optical response of existing materials, further constrained by symmetry‐forbidden second‐order processes in centrosymmetric media, severely limits efficient frequency conversion in deeply subwavelength, ultrathin volumes. Addressing this...

Aspect Ratio of Gold Nanorods Indirectly Modulates the Performance of Plasmonic‐Photochromic Fibers: A Spectroscopic Study

ABSTRACT Plasmonic‐photochromic materials have been widely investigated to harness photoresponsive properties of both components, particularly in systems comprising gold nanoparticles (AuNPs) and azobenzenes (Azos). Although AuNPs affect Azo performance, there is no information o...

Mag4: An Automated First-Principles Workflow to Extract Magnetic Interactions, from Pair Couplings to Four-Spin Ring Exchange

Abstract Chemists rationalize and design magnetic materials through structure-property relationships built on pairwise exchange couplings J, which energy-mapping methods now extract routinely from first principles. Yet whenever four magnetic centers close a loop, as in the CuO2 p...

Moiré‐Induced Symmetry Breaking of Charge Order in van der Waals Heterostructures

ABSTRACT Layered materials that stack different lattice symmetries are rare in nature. Misfit layered chalcogenides, which combine square and hexagonal lattices of rocksalt monochalcogenides and transition‐metal dichalcogenides, provide a platform to explore how incommensurabilit...

Yu-Shiba-Rusinov-assisted Andreev transport in a molecular junction between superconductors

Magnetic impurities in superconductors host Yu-Shiba-Rusinov (YSR) bound states, whereas weak superconducting junctions sustain subharmonic charge transport through multiple Andreev reflections (MAR). We explore these phenomena using a molecular-scale junction created by placing...