Linear and nonlinear optical properties of Li under pressure

R. E. ALONSO; S. SHARMA; C. AMBROSCH-DRAXL; C.O. RODRIGUEZ; N. E. CHRISTENSEN

PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS

american physical society

Año: 2006 vol. B73 p. 64101 - 64108

0163-1829

The alkali metals, which under ambient conditions are simple in the sense that their electronic structures are free-electron like and the their crystal structures are of high symmetry
body centered cubic, transform to surprisingly complex structures when pressure is applied. The experimentally determined pressure sequence for lithium up to 50 GPa is bcc¨fcc¨hR1¨cI16. In the present work the
nonlinear optical properties of these Li phases are examined in order to gain better insight into the electronic properties. We propose that the comparison of optical experiments
performed on samples in a diamond anvil cell with calculations like those presented here can be used to distinguish between various high-pressure phases and thus be a supplement to x-ray diffraction and Raman scattering techniques.simple in the sense that their electronic structures are free-electron like and the their crystal structures are of high symmetry
body centered cubic, transform to surprisingly complex structures when pressure is applied. The experimentally determined pressure sequence for lithium up to 50 GPa is bcc¨fcc¨hR1¨cI16. In the present work the
nonlinear optical properties of these Li phases are examined in order to gain better insight into the electronic properties. We propose that the comparison of optical experiments
performed on samples in a diamond anvil cell with calculations like those presented here can be used to distinguish between various high-pressure phases and thus be a supplement to x-ray diffraction and Raman scattering techniques.
body centered cubic, transform to surprisingly complex structures when pressure is applied. The experimentally determined pressure sequence for lithium up to 50 GPa is bcc¨fcc¨hR1¨cI16. In the present work the
nonlinear optical properties of these Li phases are examined in order to gain better insight into the electronic properties. We propose that the comparison of optical experiments
performed on samples in a diamond anvil cell with calculations like those presented here can be used to distinguish between various high-pressure phases and thus be a supplement to x-ray diffraction and Raman scattering techniques.bcc¨fcc¨hR1¨cI16. In the present work the
nonlinear optical properties of these Li phases are examined in order to gain better insight into the electronic properties. We propose that the comparison of optical experiments
performed on samples in a diamond anvil cell with calculations like those presented here can be used to distinguish between various high-pressure phases and thus be a supplement to x-ray diffraction and Raman scattering techniques.
performed on samples in a diamond anvil cell with calculations like those presented here can be used to distinguish between various high-pressure phases and thus be a supplement to x-ray diffraction and Raman scattering techniques.