Wei Ku

collaborators

5 papers

cond-mat.str-el2026

Orbital dimerization-induced first-order structural phase transition: a case study in La $_{3}$ Ni $_{2}$ O $_{7}$

Xingchen Shen, Wei Ku

First-order structural phase transition is a common phenomenon in materials that qualitatively alters their physical properties. Yet, the abrupt first-order nature is usually unexp…

cond-mat.str-el2025

`Interaction annealing' to determine effective quantized valence and orbital structure: an illustration with ferro-orbital order in WTe $_{2}$

Ruoshi Jiang, Fangyuan Gu, Wei Ku

Correlated materials are known to display qualitatively distinct emergent behaviors at low energy. Conveniently, upon absorbing rapid quantum fluctuations, these rich low-energy be…

cond-mat.supr-con2025

Pressure-induced trans-proximate correlation in La $_{4}$ Ni $_{3}$ O $_{10}$ and possible routes to enhance its superconductivity

Ruoshi Jiang, Zhiyu Fan, Bartomeu Monserrat +1

We report an unexpected trans-proximate interlayer correlation (stronger correlation between disjoint layers than the adjacent ones) in the high-pressure phase of the recently disc…

cond-mat.str-el2025

Charge order through crystallization of Frenkel excitons: realization in kagome metals

Ruoshi Jiang, Bartomeu Monserrat, Wei Ku

Charge order is a widely observed and representative example of spontaneous broken symmetries in quantum states of matter. Owing to the large intra-atomic Coulomb energy, the charg…

cond-mat.mtrl-sci2025

2D ferroelectricity accompanying antiferro-orbital order in semi-metallic WTe $_{2}$

Fangyuan Gu, Ruoshi Jiang, Wei Ku

The first switchable electric polarization in metals was recently discovered in bilayer and trilayer WTe2. Strangely, despite the tininess of the ordered polarization, the ferroele…

Orbital dimerization-induced first-order structural phase transition: a case study in La3​Ni2​O7​

`Interaction annealing' to determine effective quantized valence and orbital structure: an illustration with ferro-orbital order in WTe2​

Pressure-induced trans-proximate correlation in La4​Ni3​O10​ and possible routes to enhance its superconductivity

Charge order through crystallization of Frenkel excitons: realization in kagome metals

2D ferroelectricity accompanying antiferro-orbital order in semi-metallic WTe2​

Orbital dimerization-induced first-order structural phase transition: a case study in La $_{3}$ Ni $_{2}$ O $_{7}$

`Interaction annealing' to determine effective quantized valence and orbital structure: an illustration with ferro-orbital order in WTe $_{2}$

Pressure-induced trans-proximate correlation in La $_{4}$ Ni $_{3}$ O $_{10}$ and possible routes to enhance its superconductivity

2D ferroelectricity accompanying antiferro-orbital order in semi-metallic WTe $_{2}$