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Haoying Sun on Muck Rack

Haoying Sun

As seen in: Nature, Wiley Online Library, MDPI, ACS Publications, Diagnostic Pathology, Science Magazine, Physical Review B
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Articles

Observation of superconductivity-induced leading-edge gap in a bilayer nickelate

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By Wenjie Sun, Zhicheng Jiang, Shengjun Yan, Hongyi Zhang, Maosen Wang, Haoying Sun, Zhengtai Liu, Dianxiang Ji, Zhengbin Gu, Jian Zhou, Dawei Shen, Donglai Feng, Yuefeng Nie
| Nature Verified
Abstract The discovery of high-temperature superconductivity in pressurized bulk La3Ni2O7 has ignited substantial interest in nickelate superconductors. Unlike cuprates, for which superconductivity predominantly originates from the \(3{d}_{{x}^{2}-{y}^{2}}\) orbital, nickelates exhibit further complexity that arises from contributions from the \(3{d}_{{z}^{2}}\) orbital. This prompts fundamental questions about the pairing mechanism.
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Subsecond optically controlled domain switching in freestanding ferroelectric BaTiO3 membrane - Nature Communications

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By Haoying Sun, Sheng-Han Teng, Vivek Dwij, Yuefeng Nie, Anna Grünebohm
| Nature Verified
Abstract The quest to develop energy-efficient and fast optoelectronic control of memory devices is essential. In this respect, ferroelectric materials are gaining tremendous importance in information and communication technology. Here, we demonstrate light-controlled polarisation switching on a subsecond timescale ( <500 ms) in a freestanding BaTiO3 membrane, which is nearly 1200 times faster than the previously reported response using a BaTiO3 thin film.
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Superconductivity in Sr-doped La3Ni2O7 thin films - Nature Materials

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By Wenjie Sun, Haoying Sun, Hongyi Zhang, Zhengbin Gu, Jian Zhou, Dianxiang Ji
| Nature Verified
Abstract Recent studies have demonstrated ambient pressure superconductivity in compressively strained La3Ni2O7 thin films, yet the phase diagram of heterovalent doping—critical for advancing the field—remains underexplored. Here we report superconductivity in Sr2+-doped La3–xSrxNi2O7 films. The superconducting transition temperature (Tc) follows an incomplete dome-like profile, maintaining similar Tc values across a wide doping range (0 ≤ x ≤ 0.21) before diminishing near x ≈ 0.38.
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