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Nature's astronomical highlights
To celebrate Nature's comprehensive astronomical heritage, Nature Astronomy has curated a Web Collection of 40 Nature papers that have had significant impact on astronomical research.
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TABLE OF CONTENTS
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February 2017 Volume 13, Issue 2 |
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| Editorial Thesis Commentary Research Highlights News and Views Letters Articles Measure for Measure | |
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Editorial | Top |
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Indian promise p105 doi:10.1038/nphys4038 History and cultural depth are assets that benefit Indian science. But do they also hinder it? |
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Thesis | Top |
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The thermodynamics of Earth p106 Mark Buchanan doi:10.1038/nphys4031 |
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Commentary | Top |
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Animal magic pp107 - 108 Matin Durrani doi:10.1038/nphys4032 Physics teaching in schools could be transformed by highlighting its role in the animal kingdom. |
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Research Highlights | Top |
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Wireless technology: Beaming with energy | Virus disassembly: 2D phase transitions go viral | White dwarfs: Pulsar in disguise | Topological semimetals: Field-free quantum oscillations | Complex networks: Hidden influence |
News and Views | Top |
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Letters | Top |
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Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4 pp117 - 122 Joseph A. M. Paddison, Marcus Daum, Zhiling Dun, Georg Ehlers, Yaohua Liu et al. doi:10.1038/nphys3971 A detailed and systematic neutron-scattering study uncovers a continuum of magnetic excitations down to 0.06 K in the triangular quantum magnet YbMgGaO4 — an observation consistent with quantum spin liquid behaviour. |
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Thermodynamic evidence for nematic superconductivity in CuxBi2Se3 pp123 - 126 Shingo Yonezawa, Kengo Tajiri, Suguru Nakata, Yuki Nagai, Zhiwei Wang et al. doi:10.1038/nphys3907 In a nematic liquid crystal, electron orbitals align themselves along one axis, as rods. Thermodynamic observations of such rod-like alignments in CuxBi2Se3 provide evidence for a nematic superconductor.
See also: News and Views by Behnia |
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Interlayer electron–phonon coupling in WSe2/hBN heterostructures pp127 - 131 Chenhao Jin, Jonghwan Kim, Joonki Suh, Zhiwen Shi, Bin Chen et al. doi:10.1038/nphys3928 The emergence of optically silent phonons show that strong interlayer electron–phonon coupling can arise in van der Waals heterostructures, with the vibrational modes in one layer coupling to the electronic states in a neighbouring layer. |
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An effective magnetic field from optically driven phonons pp132 - 136 T. F. Nova, A. Cartella, A. Cantaluppi, M. Först, D. Bossini et al. doi:10.1038/nphys3925 Light can be used to directly excite phonon modes in condensed matter. Simultaneously exciting several modes in an antiferromagnetic rare-earth orthoferrite drives behaviour that mimics the application of a magnetic field. |
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Nonergodic diffusion of single atoms in a periodic potential pp137 - 141 Farina Kindermann, Andreas Dechant, Michael Hohmann, Tobias Lausch, Daniel Mayer et al. doi:10.1038/nphys3911 Drawing microscopic information out of the diffusive dynamics of complex processes often requires an assumption of ergodicity. Precision experiments on a single atom in a periodic potential suggest that this may be too simplistic in many cases. |
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Critical slowing down in purely elastic ‘snap-through’ instabilities pp142 - 145 Michael Gomez, Derek E. Moulton and Dominic Vella doi:10.1038/nphys3915 Critical phenomena are well understood in a wide range of physical systems. The dynamics of snap-through instabilities, a widespread phenomenon in their own right, are now shown to display critical scaling properties. |
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Articles | Top |
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Chiral ground-state currents of interacting photons in a synthetic magnetic field pp146 - 151 P. Roushan, C. Neill, A. Megrant, Y. Chen, R. Babbush et al. doi:10.1038/nphys3930 Superconducting circuits, coupled to form a ring in which a photonic excitation can circulate between sites, are established as a versatile platform for studying the interplay of strong particle interactions and external fields.
See also: News and Views by Stern |
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A proton density bubble in the doubly magic 34Si nucleus pp152 - 156 A. Mutschler, A. Lemasson, O. Sorlin, D. Bazin, C. Borcea et al. doi:10.1038/nphys3916 The central densities of protons and neutrons in stable atomic nuclei are saturated. More exotic nuclei — with imbalanced proton and neutron numbers — may have depleted central densities. Experiments now suggest such depletion for the 34Si nucleus. |
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Spiral spin-liquid and the emergence of a vortex-like state in MnSc2S4 pp157 - 161 Shang Gao, Oksana Zaharko, Vladimir Tsurkan, Yixi Su, Jonathan S. White et al. doi:10.1038/nphys3914 A detailed and systematic neutron scattering study uncovers a spiral spin-liquid state in the quantum magnet MnSc2S4. |
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Direct observation of the skyrmion Hall effect pp162 - 169 Wanjun Jiang, Xichao Zhang, Guoqiang Yu, Wei Zhang, Xiao Wang et al. doi:10.1038/nphys3883 Experiments show that when driven by electric currents, magnetic skyrmions experience transverse motion due to their topological charge — similar to the conventional Hall effect experienced by charged particles in a perpendicular magnetic field.
See also: News and Views by Chen |
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Skyrmion Hall effect revealed by direct time-resolved X-ray microscopy pp170 - 175 Kai Litzius, Ivan Lemesh, Benjamin Kruger, Pedram Bassirian, Lucas Caretta et al. doi:10.1038/nphys4000 Experiments show that when driven by electric currents, magnetic skyrmions experience transverse motion due to their topological charge — similar to the conventional Hall effect experienced by charged particles in a perpendicular magnetic field.
See also: News and Views by Chen |
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Strongly exchange-coupled triplet pairs in an organic semiconductor pp176 - 181 Leah R. Weiss, Sam L. Bayliss, Felix Kraffert, Karl J. Thorley, John E. Anthony et al. doi:10.1038/nphys3908 Experiments show how molecular structure affects the interaction and dynamics of the triplet exciton pairs produced when an excited singlet exciton decays via singlet fission — a process that could be harnessed for optoelectronic applications.
See also: News and Views by Wasielewski |
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Quintet multiexciton dynamics in singlet fission pp182 - 188 Murad J. Y. Tayebjee, Samuel N. Sanders, Elango Kumarasamy, Luis M. Campos, Matthew Y. Sfeir et al. doi:10.1038/nphys3909 Experiments show how molecular structure affects the interaction and dynamics of the triplet exciton pairs produced when an excited singlet exciton decays via singlet fission — a process that could be harnessed for optoelectronic applications.
See also: News and Views by Wasielewski |
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Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point pp189 - 196 Byung-Kweon Jang, Jin Hong Lee, Kanghyun Chu, Pankaj Sharma, Gi-Yeop Kim et al. doi:10.1038/nphys3902 The triple point is a well-known feature on pressure–temperature phase diagrams. A multiferroic triple point is now reported for La-doped BiFeO3; La concentration and temperature are the phase variables and the phases display different spin (dis)order.
See also: News and Views by Kalinin |
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Measure for Measure | Top |
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Metrology in 2019 p198 Klaus von Klitzing doi:10.1038/nphys4029 Klaus von Klitzing tells the story of the quantum Hall effect's impact on metrology. |
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