Noblest of all metals is structurally unstable at high pressure

被引：82
作者：
Dubrovinsky, L.
Dubrovinskaia, N.
Crichton, W. A.
Mikhaylushkin, A. S.
Simak, S. I.
Abrikosov, I. A.
de Almeida, J. S.
Ahuja, R.
Luo, W.
Johansson, B.
机构：
[1] Univ Bayreuth, Bayer Geoinst, D-95440 Bayreuth, Germany
[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[3] Univ Heidelberg, Mineral Inst, D-69120 Heidelberg, Germany
[4] Univ Bayreuth, Crystallog Lab, Dept Phys, D-95440 Bayreuth, Germany
[5] Univ Uppsala, Dept Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden
[6] Linkoping Univ, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden
[7] Royal Inst Technol, Dept Mat Sci & Engn, SE-10044 Stockholm, Sweden
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 04期
关键词：
D O I：
10.1103/PhysRevLett.98.045503
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In a series of experiments in externally electrically heated diamond anvil cells we demonstrate that at pressures above similar to 240 GPa gold adopts a hexagonal-close-packed structure. Ab initio calculations predict that at pressures about 250 GPa different stacking sequences of close-packed atomic layers in gold become virtually degenerate in energy, strongly supporting the experimental observations.
引用
收藏
页数：4
相关论文
共 25 条
[1]   Theoretical prediction of a phase transition in gold [J].
Ahuja, R ;
Rekhi, S ;
Johansson, B .
PHYSICAL REVIEW B, 2001, 63 (21)
[2]   Equation of state of bismuth to 222 GPa and comparison of gold and platinum pressure scales to 145 GPa [J].
Akahama, Y ;
Kawamura, H ;
Singh, AK .
JOURNAL OF APPLIED PHYSICS, 2002, 92 (10) :5892-5897
[3]   Equation of state data for gold in the pressure range <10 TPa [J].
Batani, D ;
Balducci, A ;
Beretta, D ;
Bernardinello, A ;
Löwer, T ;
Koenig, M ;
Benuzzi, A ;
Faral, B ;
Hall, T .
PHYSICAL REVIEW B, 2000, 61 (14) :9287-9294
[4]  
Bernstein P., 2001, POWER GOLD HIST OBSE, P448
[5]   Theoretical extension of the gold pressure calibration standard beyond 3 Mbars [J].
Boettger, JC .
PHYSICAL REVIEW B, 2003, 67 (17)
[6]   The NaCl pressure standard [J].
Brown, JM .
JOURNAL OF APPLIED PHYSICS, 1999, 86 (10) :5801-5808
[7]   Martensitic fcc-to-hcp transformation observed in xenon at high pressure [J].
Cynn, H ;
Yoo, CS ;
Baer, B ;
Iota-Herbei, V ;
McMahan, AK ;
Nicol, M ;
Carlson, S .
PHYSICAL REVIEW LETTERS, 2001, 86 (20) :4552-4555
[8]   Equations of state of six metals above 94 GPa [J].
Dewaele, A ;
Loubeyre, P ;
Mezouar, M .
PHYSICAL REVIEW B, 2004, 70 (09) :094112-1
[9]   Stability of the high-pressure monoclinic phases in Ce and Pr metals: Comparative diffraction study and phenomenological theory [J].
Dmitriev, VP ;
Kuznetsov, AY ;
Bandilet, O ;
Bouvier, P ;
Dubrovinsky, L ;
Machon, D ;
Weber, HP .
PHYSICAL REVIEW B, 2004, 70 (01) :014104-1
[10]   Whole-cell heater for the diamond anvil cell [J].
Dubrovinskaia, N ;
Dubrovinsky, L .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2003, 74 (07) :3433-3437
123