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  1. Article

    Open Access

    Flexoelectric polarizing and control of a ferromagnetic metal

    Electric polarization is well defined only in insulators not metals, and there is no general scheme to induce and control bulk polarity in metals. Here we circumvent this limitation by utilizing a pseudo-elect...

    Wei Peng, Se Young Park, Chang Jae Roh, Junsik Mun, Hwiin Ju, **kwon Kim in Nature Physics (2024)

  2. Article

    Open Access

    Tuning orbital-selective phase transitions in a two-dimensional Hund’s correlated system

    Hund’s rule coupling (J) has attracted much attention recently for its role in the description of the novel quantum phases of multi-orbital materials. Depending on the orbital occupancy, J can lead to various int...

    Eun Kyo Ko, Sungsoo Hahn, Changhee Sohn, Sangmin Lee in Nature Communications (2023)

  3. Article

    Open Access

    Higher harmonics in planar Hall effect induced by cluster magnetic multipoles

    Antiferromagnetic (AFM) materials are attracting tremendous attention due to their spintronic applications and associated novel topological phenomena. However, detecting and identifying the spin configurations...

    Jeongkeun Song, Taekoo Oh, Eun Kyo Ko, Ji Hye Lee, Woo ** Kim in Nature Communications (2022)

  4. Article

    Open Access

    Colossal flexoresistance in dielectrics

    Dielectrics have long been considered as unsuitable for pure electrical switches; under weak electric fields, they show extremely low conductivity, whereas under strong fields, they suffer from irreversible da...

    Sung Min Park, Bo Wang, Tula Paudel, Se Young Park, Saikat Das in Nature Communications (2020)