Publications by authors named "V Iota-Herbei"
Article Synopsis
- - The study investigates the high pressure x-ray absorption and single crystal x-ray diffraction of the heavy fermion compound UCd11, focusing on changes at the U L3 edge as pressure increases from 0 to 28.2 GPa.
- - X-ray absorption results indicate significant delocalization of 5f electrons, with a +4.1 eV shift in the white line at 28.2 GPa, alongside evidence of 6d band broadening.
- - High pressure diffraction measurements yielded a bulk modulus of K0 = 62 GPa with no signs of structural phase transition within the pressure range studied.
Angle-resolved x-ray diffraction patterns of Xe to 127 GPa indicate that the fcc-to-hcp transition occurs martensitically between 3 and 70 GPa in diamond-anvil cells without an intermediate phase. These data also reveal that the transition occurs by the introduction of stacking disorder in the fcc lattice at low pressure, which grows into hcp domains with increasing pressure. The small energy difference between the hcp and the fcc structures may allow the two phases to coexist over a wide pressure range.
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