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Akademický článek

Possible impact of the 43 BCE Okmok volcanic eruption in Alaska on the climate of China as revealed in historical documents

Autor: P. K. Wang, E. K.-H. Lin, Y.-S. Lin, C.-R. Lee, H.-J. Lin, C.-W. Chen, P.-L. Pai

Publikováno v: Climate of the Past, Vol 20, Pp 1513-1520 (2024)

The Okmok volcanic eruption in Alaska has recently been discovered and is precisely dated to have occurred in 43 BCE. Some Chinese climate records of 43–33 BCE have been found in historical documents that provide descriptions of observed environmen

Externí odkaz: https://doaj.org/article/eac76e9703e4464ba038b02f676bed98

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Akademický článek

Paramagnetic LaCoO_{3}: A Highly Inhomogeneous Mixed Spin-State System

Autor: D. Takegami, A. Tanaka, S. Agrestini, Z. Hu, J. Weinen, M. Rotter, C. Schüßler-Langeheine, T. Willers, T. C. Koethe, T. Lorenz, Y. F. Liao, K. D. Tsuei, H.-J. Lin, C. T. Chen, L. H. Tjeng

Publikováno v: Physical Review X, Vol 13, Iss 1, p 011037 (2023)

We investigate the electronic structure of LaCoO_{3} across the gradual spin-state and insulator-to-metal transitions using bulk-sensitive hard x-ray photoelectron and soft x-ray absorption spectroscopies. The spectra exhibit strong variations with t

Externí odkaz: https://doaj.org/article/60ae3c05c43747a7ae766310d46e2eb5

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Akademický článek

Selective Orbital Imaging of Excited States with X-Ray Spectroscopy: The Example of α-MnS

Autor: A. Amorese, B. Leedahl, M. Sundermann, H. Gretarsson, Z. Hu, H.-J. Lin, C. T. Chen, M. Schmidt, H. Borrmann, Yu. Grin, A. Severing, M. W. Haverkort, L. H. Tjeng

Publikováno v: Physical Review X, Vol 11, Iss 1, p 011002 (2021)

Herein we show that nonresonant inelastic x-ray scattering involving an s core level is a powerful spectroscopic method to characterize the excited states of transition metal compounds. The spherical charge distribution of the s core hole allows the

Externí odkaz: https://doaj.org/article/8119911786f34b4d8523ba51bc156e65

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Akademický článek

Land use effect and hydrological control on nitrate yield in subtropical mountainous watersheds

Autor: J.-C. Huang, T.-Y. Lee, S.-J. Kao, S.-C. Hsu, H.-J. Lin, T.-R. Peng

Publikováno v: Hydrology and Earth System Sciences, Vol 16, Iss 3, Pp 699-714 (2012)

Nitrate export in small subtropical watersheds is rarely observed and the estimation of individual land use nitrate yield from a mixed combination within catchments has scarcely been studied. In this study the nitrate concentrations at 16 nested catc

Externí odkaz: https://doaj.org/article/0415b1680dd14e5b888a1a312099447f

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Akademický článek

c-Axis Dimer and Its Electronic Breakup: The Insulator-to-Metal Transition in Ti_{2}O_{3}

Publikováno v: Physical Review X, Vol 8, Iss 2, p 021004 (2018)

We report on our investigation of the electronic structure of Ti_{2}O_{3} using (hard) x-ray photoelectron and soft x-ray absorption spectroscopy. From the distinct satellite structures in the spectra, we have been able to establish unambiguously tha

Externí odkaz: https://doaj.org/article/d0c93ddc506640118331de06e58559a2

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Akademický článek

Dynamic Atomic Reconstruction: How Fe_{3}O_{4} Thin Films Evade Polar Catastrophe for Epitaxy

Autor: C. F. Chang, Z. Hu, S. Klein, X. H. Liu, R. Sutarto, A. Tanaka, J. C. Cezar, N. B. Brookes, H.-J. Lin, H. H. Hsieh, C. T. Chen, A. D. Rata, L. H. Tjeng

Publikováno v: Physical Review X, Vol 6, Iss 4, p 041011 (2016)

Polar catastrophe at the interface of oxide materials with strongly correlated electrons has triggered a flurry of new research activities. The expectations are that the design of such advanced interfaces will become a powerful route to engineer devi

Externí odkaz: https://doaj.org/article/229663f31e3b4026bfd63ac4d59b2198

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Akademický článek

Resting heart rate and incident atrial fibrillation: A stratified Mendelian randomization in the AFGen consortium.

Publikováno v: PLoS ONE, Vol 17, Iss 5, p e0268768 (2022)

BackgroundBoth elevated and low resting heart rates are associated with atrial fibrillation (AF), suggesting a U-shaped relationship. However, evidence for a U-shaped causal association between genetically-determined resting heart rate and incident A

Externí odkaz: https://doaj.org/article/ac9d5b0f7c084fa48d7e8ef72647886a

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