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Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Anticipatory action and pastoralism in Africa: a synthesis of current challenges, opportunities, and priorities. [PDF]

open access: yesDisasters
Derbyshire SF   +9 more
europepmc   +1 more source
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The information content of uncertainty indices for natural gas futures volatility forecasting

Journal of Forecasting, 2021
AbstractWe investigate the information content of five uncertainty indices for the US natural gas futures volatility forecasting. Our investigation is based on the GARCH‐MIDAS framework. The in‐sample outcomes suggest that most of uncertainty indices have a crucial effect on natural gas futures volatility.
Chao Liang, Feng Ma, Lu Wang, Qing Zeng
openaire   +1 more source

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