https://przhang.net New articles, news and reviews from Przhang. en Tue, 13 Oct 2026 00:43:29 GMT https://przhang.net/news.html?id=is-ai-ruining-our-skills-early-results-are-in-and-they-re-not-good https://przhang.net/news.html?id=is-ai-ruining-our-skills-early-results-are-in-and-they-re-not-good Reliance on artificial-intelligence tools degrades the abilities of physicians and software engineers, studies show. News Sun, 31 May 2026 16:00:00 GMT https://przhang.net/news.html?id=misconduct-sleuth-in-china-swiftly-gains-acclaim-for-calling-out-questionable-pa https://przhang.net/news.html?id=misconduct-sleuth-in-china-swiftly-gains-acclaim-for-calling-out-questionable-pa Independent vlogger Geng Hongwei galvanizes often-sluggish institutions to investigate and punish prominent scientists. News Sun, 31 May 2026 16:00:00 GMT https://przhang.net/news.html?id=eit-visit-wu-li-2026 https://przhang.net/news.html?id=eit-visit-wu-li-2026 In May 2026, I visited Prof. Wu Li's research group at EIT, gave an academic presentation, and engaged in in-depth discussions with faculty members, students, and Dr. Haifeng Wang. News Thu, 30 Apr 2026 16:00:00 GMT https://przhang.net/news.html?id=zhejiang-university-return-visit-2026 https://przhang.net/news.html?id=zhejiang-university-return-visit-2026 Returned to Zhejiang University and met with Prof. Huiqiu Yuan, combining research discussions with a visit to the Center for Correlated Matter and campus academic spaces. News Thu, 30 Apr 2026 16:00:00 GMT https://przhang.net/article.html?id=beta-teo2 https://przhang.net/article.html?id=beta-teo2 Nonadiabatic dynamics reveal that sparse conduction-band pathways create a phonon bottleneck, making electron cooling in β-TeO₂ far slower than hole relaxation. Article Sun, 19 Apr 2026 16:00:00 GMT https://przhang.net/review.html?id=electron-hole-asymmetric-relaxation https://przhang.net/review.html?id=electron-hole-asymmetric-relaxation Comparison of electron and hole relaxation channels in a wide-bandgap oxide material. Review & Analysis Thu, 01 Jan 2026 00:00:00 GMT https://przhang.net/review.html?id=how-many-types-of-heterojunctions-are-there https://przhang.net/review.html?id=how-many-types-of-heterojunctions-are-there This article mainly introduces the basic concepts of heterojunctions, the classification of band alignments, the classification of carrier types, geometric connection configurations, and experimental identification methods. Review & Analysis Thu, 01 Jan 2026 00:00:00 GMT https://przhang.net/review.html?id=pbse-substitution-slow-relaxation https://przhang.net/review.html?id=pbse-substitution-slow-relaxation Representative analysis of PbSe substitution, showing how reduced relaxation pathways and fewer low-frequency phonon-assisted channels slow carrier relaxation despite enhanced electron-phonon coupling. Review & Analysis Thu, 01 Jan 2026 00:00:00 GMT https://przhang.net/review.html?id=the-understanding-of-phonon-spectrum-within-one-paper https://przhang.net/review.html?id=the-understanding-of-phonon-spectrum-within-one-paper This paper mainly introduces the horizontal and vertical axes of phonon spectra, the meaning of phonon branches, the physical picture of imaginary frequencies and soft modes, and their role in analyzing structural stability, thermal transport, and finite-temperature lattice behavior. Review & Analysis Thu, 01 Jan 2026 00:00:00 GMT https://przhang.net/review.html?id=valley-phonon-mode-locking https://przhang.net/review.html?id=valley-phonon-mode-locking Valley-selective phonon modes and intervalley scattering pathways in two-dimensional systems. Review & Analysis Thu, 01 Jan 2026 00:00:00 GMT https://przhang.net/review.html?id=what-does-strain-energy-regulate https://przhang.net/review.html?id=what-does-strain-energy-regulate This article mainly introduces the definition, application methods, and physical meaning of strain in materials calculations, as well as how strain simultaneously affects results such as band structures, mechanical stability, surface adsorption, and ion diffusion. Review & Analysis Thu, 01 Jan 2026 00:00:00 GMT https://przhang.net/review.html?id=what-is-phase-and-phase-transition https://przhang.net/review.html?id=what-is-phase-and-phase-transition In materials science, a “phase” refers to a region that has the same structure, composition, and physical properties within a certain spatial range. Everyday examples include the ice, liquid, and gas phases of water. In materials, the face-centered cubic phase, body-centered cubic phase, and hexagonal close-packed phase in metals, different crystal forms in oxides, and the 1T and 2H phases in two-dimensional materials are all structural phases. A phase determines how atoms are arranged, and also influences how electrons, ions, phonons, and defects move within a material. The same chemical composition can correspond to multiple phases, and the differences in properties between phases often arise from changes in atomic packing, bonding characteristics, and electronic structure. Review & Analysis Thu, 01 Jan 2026 00:00:00 GMT https://przhang.net/news.html?id=hunan-physical-society-2025 https://przhang.net/news.html?id=hunan-physical-society-2025 Participated in the 2025 Annual Meeting of the Hunan Physical Society in Changsha, presented recent work on ultrafast carrier dynamics, and joined academic sessions on quantum science, laser physics, and condensed matter research. News Wed, 01 Jan 2025 00:00:00 GMT https://przhang.net/news.html?id=hunan-physical-society-2024 https://przhang.net/news.html?id=hunan-physical-society-2024 Presented our work on GaTe, showing how spin-orbit coupling activates anisotropic ultrafast carrier dynamics through direction-dependent electron-phonon coupling. News Mon, 01 Jan 2024 00:00:00 GMT https://przhang.net/article.html?id=nanoscale-materials https://przhang.net/article.html?id=nanoscale-materials Nonadiabatic simulations connect GaTe's direction-dependent carrier relaxation to mixed flat-tilted bands and spin-orbit-tunable electron-phonon coupling. Article Mon, 01 May 2023 16:00:00 GMT https://przhang.net/news.html?id=strong-field-physics-workshop-2023 https://przhang.net/news.html?id=strong-field-physics-workshop-2023 Participated in the sixth workshop on theoretical problems in strong-field physics in Wuhan, joining talks and discussions on strong-field light-matter interaction, ultrafast processes, and related theoretical methods. News Fri, 31 Mar 2023 16:00:00 GMT https://przhang.net/article.html?id=noncentrosymmetric-superconductors https://przhang.net/article.html?id=noncentrosymmetric-superconductors First-principles calculations show that LaNiSi, LaPtSi, and LaPtGe combine conventional electron-phonon superconductivity with symmetry-protected Weyl nodal rings. Article Wed, 17 Jun 2020 16:00:00 GMT https://przhang.net/article.html?id=CaPtAs-materials https://przhang.net/article.html?id=CaPtAs-materials Electrical, thermodynamic, and first-principles evidence identifies CaPtAs as a noncentrosymmetric superconductor with unconventional heat-capacity behavior. Article Sun, 05 Jan 2020 16:00:00 GMT https://przhang.net/article.html?id=topological https://przhang.net/article.html?id=topological Hybrid-functional and mBJ calculations map how lanthanide contraction drives topological-to-trivial transitions across rare-earth monopnictides. Article Mon, 01 Jan 2018 00:00:00 GMT https://przhang.net/article.html?id=surface-interface https://przhang.net/article.html?id=surface-interface First-principles calculations show how hydroxyl coverage stabilizes graphyne and graphdiyne structures while tuning their electronic and magnetic properties. Article Fri, 13 Nov 2015 16:00:00 GMT https://przhang.net/article.html?id=CrgrapheneCr https://przhang.net/article.html?id=CrgrapheneCr First-principles transport calculations show that a Cr/graphene/Cr magnetotunnel junction can deliver strong spin filtering and robust tunneling magnetoresistance under bias. Article Thu, 08 Oct 2015 16:00:00 GMT