Equation of state of 7LiH and 7LiD from x-ray diffraction to 94 GPa

被引：67

作者：

Loubeyre, P ^{[1
]}

Le Toullec, R

Hanfland, M

Ulivi, L

Datchi, F

Hausermann, D

机构：

[1] CEA, DRIF, DPTA, Serv Phys Mat Condensee, F-91680 Bruyeres Le Chatel, France

[2] Univ Paris 06, F-75252 Paris, France

[3] ESRF, F-38043 Grenoble, France

[4] CNR, Ist Elettron Quantist, I-50127 Florence, Italy

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.57.10403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single-crystal synchrotron x-ray diffraction has been performed on solid (LiH)-Li-7 up to 36 GPa and solid (LiD)-Li-7 up to 94 Cpa in helium as a hydrostatic medium. The rocksalt structure is stable up to the maximum pressure. An isotopic shift on the equation of state (EOS) is clearly measured and its magnitude falls in between various approximations of the contribution of the zero-point lattice-vibrations. Finally, the EOS of LiH is compared to calculations and to the EOS of its isoelectronic solid, He. [S0163-1829(98)08417-3].

引用

页码：10403 / 10406

页数：4

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