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(Color online) X-ray emission spectra collected for FeSe at RT at various pressures up to 16 GPa. The normalized XES intensity is plotted as a function of pressure. The inset shows expanded view of the satellite peak.
(Color online) Low temperature XES spectra at selected pressures up to 8 GPa collected at 8 K. The inset shows XES spectra zoomed between 7038 and 7050 eV.
(Color online) Integrated XES intensity plotted as a function of pressure at RT (solid symbols) and LT (open symbols) at 8 K.
(Color online) (a) Unit cell of tetragonal FeSe. (b) Top view of AFM phase in cmma FeSe. The black square represents one unit cell. (c)–(e) and (f)–(h) The calculated spin moment per Fe, lattice parameters, and Se anion height with respect to Fe layer by GGA and LDA.
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