8046期

最新文章

• A new vision for how evolution works is long overdue AI翻译
  作者：Jablonka, Eva
  作者单位：Tel Aviv University
• Dear Donald Trump: A letter from Nature on how to make science thrive AI翻译
  作者：[Anonymous]
• Human embryo editing against disease is unsafe and unproven - despite rosy predictions AI翻译
  作者：Carmi, Shai; Greely, Henry T.; Mitchell, Kevin J.
  作者单位：Hebrew University of Jerusalem; Stanford University; Trinity College Dublin
• Proximity ferroelectricity in wurtzite heterostructures AI翻译
  作者：Skidmore, Chloe H.; Spurling, R. Jackson; Hayden, John; Baksa, Steven M.; Behrendt, Drew; Goodling, Devin; Nordlander, Joshua L.; Suceava, Albert; Casamento, Joseph; Akkopru-Akgun, Betul; Calderon, Sebastian; Dabo, Ismaila; Gopalan, Venkatraman; Kelley, Kyle P.; Rappe, Andrew M.; Trolier-McKinstry, Susan; Dickey, Elizabeth C.; Maria, Jon-Paul
  作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of Pennsylvania; Carnegie Mellon University; United States Department of Energy (DOE); Oak Ridge National Laboratory; Center for Nanophase Materials Sciences
  摘要：Proximity ferroelectricity is an interface-associated phenomenon in electric-field-driven polarization reversal in a non-ferroelectric polar material induced by one or more adjacent ferroelectric materials. Here we report proximity ferroelectricity in wurtzite ferroelectric heterostructures. In the present case, the non-ferroelectric layers are AlN and ZnO, whereas the ferroelectric layers are Al1-xBxN, Al1-xScxN and Zn1-xMgxO. The layered structures include nitride-nitride, oxide-oxide and ni...
• Remove subsidies to solve India's fertilizer-overuse problem AI翻译
  作者：Holland, Jonathan; Behrendt, Karl; Ghosh, Bikramaditya
• Janus graphene nanoribbons with localized states on a single zigzag edge AI翻译
  作者：Song, Shaotang; Teng, Yu; Tang, Weichen; Xu, Zhen; He, Yuanyuan; Ruan, Jiawei; Kojima, Takahiro; Hu, Wenping; Giessibl, Franz J.; Sakaguchi, Hiroshi; Louie, Steven G.; Lu, Jiong
  作者单位：National University of Singapore; National University of Singapore; Tianjin University; University of California System; University of California Berkeley; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; Kyoto University; Tianjin University; University of Regensburg
  摘要：Topological design of pi electrons in zigzag-edged graphene nanoribbons (ZGNRs) leads to a wealth of magnetic quantum phenomena and exotic quantum phases1, 2, 3, 4, 5, 6, 7, 8, 9-10. Symmetric ZGNRs typically show antiferromagnetically coupled spin-ordered edge states1,2. Eliminating cross-edge magnetic coupling in ZGNRs not only enables the realization of a class of ferromagnetic quantum spin chains11, enabling the exploration of quantum spin physics and entanglement of multiple qubits in the...
• New Silurian aculiferan fossils reveal complex early history of Mollusca AI翻译
  作者：Sutton, Mark D.; Sigwart, Julia D.; Briggs, Derek E. G.; Gueriau, Pierre; King, Andrew; Siveter, David J.; Siveter, Derek J.
  作者单位：Imperial College London; Leibniz Association; Senckenberg Gesellschaft fur Naturforschung (SGN); Goethe University Frankfurt; Yale University; Yale University; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Museum National d'Histoire Naturelle (MNHN); University of Lausanne; SOLEIL Synchrotron; University of Leicester; University of Oxford; University of Oxford
  摘要：Mollusca is the second most species-rich animal phylum, but the pathways of early molluscan evolution have long been controversial1, 2, 3, 4-5. Modern faunas retain only a fraction of the past forms in this hyperdiverse and long-lived group. Recent analyses6, 7-8 have consistently recovered a fundamental split into two sister clades, Conchifera (including gastropods, bivalves and cephalopods) and Aculifera9, comprising Polyplacophora ('chitons') and Aplacophora. Molluscan evolution in toto is ...
• Australia's social-media ban won't work - there are better ways to keep kids safe AI翻译
  作者：Campbell, Marilyn
  作者单位：Queensland University of Technology (QUT)
• Advising policymakers can't be taught - researchers must learn by doing AI翻译
  作者：Obermeister, Noam; Hulme, Mike
• Two-dimensional non-Hermitian skin effect in an ultracold Fermi gas AI翻译
  作者：Zhao, Entong; Wang, Zhiyuan; He, Chengdong; Poon, Ting Fung Jeffrey; Pak, Ka Kwan; Liu, Yu-Jun; Ren, Peng; Liu, Xiong-Jun; Jo, Gyu-Boong
  作者单位：Hong Kong University of Science & Technology; Peking University; Hefei National Laboratory; Shenzhen International Quantum Academy; Hong Kong University of Science & Technology; Rice University
  摘要：The concept of non-Hermiticity has expanded the understanding of band topology, leading to the emergence of counter-intuitive phenomena. An example is the non-Hermitian skin effect (NHSE)1, 2, 3, 4, 5, 6-7, which involves the concentration of eigenstates at the boundary. However, despite the potential insights that can be gained from high-dimensional non-Hermitian quantum systems in areas such as curved space8, 9-10, high-order topological phases11,12 and black holes13,14, the realization of t...