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DOI | 10.3354/cr01463 |
Optically excited structural transition in atomic wires on surfaces at the quantum limit | |
Frigge, T.1,2; Hafke, B.1,2; Witte, T.1,2; Krenzer, B.1,2; Streubuehr, C.1,2; Syed, A. Samad1,2; Trontl, V. Miksic1,2; Avigo, I.1,2; Zhou, P.1,2; Ligges, M.1,2; von der Linde, D.1,2; Bovensiepen, U.1,2; Horn-von Hoegen, M.1,2; Wippermann, S.3; Luecke, A.4; Gerstmann, U.4; Schmidt, W. G.4 | |
2017-04-13 | |
发表期刊 | NATURE
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ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2017 |
卷号 | 544期号:7649页码:207-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Transient control over the atomic potential-energy landscapes of solids could lead to new states of matter and to quantum control of nuclear motion on the timescale of lattice vibrations. Recently developed ultrafast time-resolved diffraction techniques(1) combine ultrafast temporal manipulation with atomic-scale spatial resolution and femtosecond temporal resolution. These advances have enabled investigations of photo-induced structural changes in bulk solids that often occur on timescales as short as a few hundred femtoseconds(2-6). In contrast, experiments at surfaces and on single atomic layers such as graphene report timescales of structural changes that are orders of magnitude longer(7-9). This raises the question of whether the structural response of low-dimensional materials to femtosecond laser excitation is, in general, limited. Here we show that a photo-induced transition from the low-to high-symmetry state of a charge density wave in atomic indium (In) wires supported by a silicon (Si) surface takes place within 350 femtoseconds. The optical excitation breaks and creates In-In bonds, leading to the non-thermal excitation of soft phonon modes, and drives the structural transition in the limit of critically damped nuclear motion through coupling of these soft phonon modes to a manifold of surface and interface phonons that arise from the symmetry breaking at the silicon surface. This finding demonstrates that carefully tuned electronic excitations can create non-equilibrium potential energy surfaces that drive structural dynamics at interfaces in the quantum limit (that is, in a regime in which the nuclear motion is directed and deterministic)(8). This technique could potentially be used to tune the dynamic response of a solid to optical excitation, and has widespread potential application, for example in ultrafast detectors(10,11). |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398897900032 |
WOS关键词 | CHARGE-DENSITY-WAVE ; ULTRAFAST ELECTRON CRYSTALLOGRAPHY ; DIFFRACTION ; PHASE ; MOTIONS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38581 |
专题 | 气候变化 |
作者单位 | 1.Univ Duisburg Essen, Fak Phys, Lotharstr 1, D-47057 Duisburg, Germany; 2.Univ Duisburg Essen, Ctr Nanointegrat CENIDE, Lotharstr 1, D-47057 Duisburg, Germany; 3.Max Planck Inst Eisenforschung, Max Planck Str 1, D-40237 Dusseldorf, Germany; 4.Univ Paderborn, Lehrstuhl Theoret Mat Phys, D-33095 Paderborn, Germany |
推荐引用方式 GB/T 7714 | Frigge, T.,Hafke, B.,Witte, T.,et al. Optically excited structural transition in atomic wires on surfaces at the quantum limit[J]. NATURE,2017,544(7649):207-+. |
APA | Frigge, T..,Hafke, B..,Witte, T..,Krenzer, B..,Streubuehr, C..,...&Schmidt, W. G..(2017).Optically excited structural transition in atomic wires on surfaces at the quantum limit.NATURE,544(7649),207-+. |
MLA | Frigge, T.,et al."Optically excited structural transition in atomic wires on surfaces at the quantum limit".NATURE 544.7649(2017):207-+. |
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