Atomic-scale visualization of inertial dynamics

被引：299

作者：

Lindenberg, AM ^{[1
]}

Larsson, J

Sokolowski-Tinten, K

Gaffney, KJ

Blome, C

Synnergren, O

Sheppard, J

Caleman, C

MacPhee, AG

Weinstein, D

Lowney, DP

Allison, TK

Matthews, T

Falcone, RW

Cavalieri, AL

Fritz, DM

Lee, SH

Bucksbaum, PH

Reis, DA

Rudati, J

Fuoss, PH

Kao, CC

Siddons, DP

Pahl, R

Als-Nielsen, J

Duesterer, S

Ischebeck, R

Schlarb, H

Schulte-Schrepping, H

Tschentscher, T

Schneider, J

von der Linde, D

Hignette, O

Sette, F

Chapman, HN

Lee, RW

Hansen, TN

Techert, S

Wark, JS

Bergh, M

Huldt, G

van der Spoel, D

Timneanu, N

Hajdu, J

Akre, RA

Bong, E

Krejcik, P

Arthur, J

Brennan, S

Luening, K

机构：

[1] Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA

[2] Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden

[3] Univ Jena, Inst Opt & Quantenelektron, D-07743 Jena, Germany

[4] DESY, D-22607 Hamburg, Germany

[5] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[6] Uppsala Univ, Dept Cell & Mol Biol, Ctr Biomed, SE-75124 Uppsala, Sweden

[7] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[8] Univ Michigan, FOCUS Ctr, Dept Phys, Ann Arbor, MI 48109 USA

[9] Univ Michigan, Appl Phys Program, Ann Arbor, MI 48109 USA

[10] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[11] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA

[12] Univ Chicago, Consortium Adv Radiat Sources, Chicago, IL 60637 USA

[13] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[14] Univ Duisburg Essen, Inst Expt Phys, D-45117 Essen, Germany

[15] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[16] Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA

[17] Max Planck Inst Biophys Chem, D-37077 Gottingen, Germany

[18] SLAC, Menlo Pk, CA 94025 USA

来源：

SCIENCE | 2005年 / 308卷 / 5720期

关键词：

D O I：

10.1126/science.1107996

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The motion of atoms on interatomic potential energy surfaces is fundamental to the dynamics of liquids and solids. An accelerator-based source of femtosecond x-ray pulses allowed us to follow directly atomic displacements on an optically modified energy landscape, leading eventually to the transition from crystalline solid to disordered liquid. We show that, to first order in time, the dynamics are inertial, and we place constraints on the shape and curvature of the transition-state potential energy surface. Our measurements point toward analogies between this nonequilibrium phase transition and the short-time dynamics intrinsic to equilibrium liquids.

引用

页码：392 / 395

页数：4

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