On Psychology and Psychosomatics

Michailov, M.; Neu, E.

doi:10.26226/morressier.5cf632c6af72dec2b0554e44

Cited by 1 publication

(4 citation statements)

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“…Let us note that in the vicinity of these defects, both A-and B-type nanowires develop a twisted atomic arrangement which propagates over their entire length at a later stage. [63] Similar helical nanowire structures have been observed in real physical experiments and molecular dynamic simulations as well. [12]…”

Section: Three-dimensional Free-standing Nanowiressupporting

confidence: 74%

“…At low values T, in the region of 10 K, the 1D nanowire has a mean lifetime of about 2.0 Â 10 3 MCS, while the 3D nanowire is practically unbreakable up to the time limit of the simulation experiment (5.0 Â 10 7 MCS). [63] We have also observed a lifetime enhancement of 3D free-standing nanowire as a result of reduced attractive atomic interactions. The snapshot data demonstrate impressively twisted structures and increased flexibility confirmed by clearly developed wave-shaped morphology.…”

Section: Three-dimensional Free-standing Nanowiresmentioning

confidence: 63%

“…It is important to stress that the stabilization effect resulting from enhanced nanowire flexibility is valid in the case of 1D nanowire on homo-and heteroepitaxial interfaces, and 3D free-standing nanowire, too. [58,63] The presented physical model and ensemble of studies is considered as a possible way toward a new type of atomic-scale design of epitaxial interfaces. They could be implemented to fine-tuning and control of the structural, morphological, and thermodynamic properties of a large variety of atomic nanowires with different space geometry, size, and dimensionality.…”

Section: Resultsmentioning

confidence: 99%

“…Making an attempt to unravel some of these complex questions, we give in the present paper a general overeview of our recently published results, extended by new findings and interpretation of thermal instability, spontaneous breakdown, and complete disintegration of metal nanowires. [38][39][40][41]49,63] Introducing a new atomistic physical model via multi-step hole-mediated mechanism of nanowire rupture, we discuss in detail important structural properties, morphological shape, geometry, and rupture kinetics of four general types of nanowires: 1) one-dimensional (1D) monatomic nanowires; 2) two-dimensional (2D) flat nanowires located on epitaxial interfaces; 3) 1D nanowires free-standing in space; and 4) three-dimensional (3D) nanowires free-standing in space, Figure 1.…”

Section: Introductionmentioning

confidence: 99%

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Atomic Scale Design, Structure and Stability of Quantum Nanowires Located on Epitaxial Interfaces and Free‐Standing in Space

Michailov

2019

Physica Status Solidi (a)

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Metal nanowires excite remarkable academic curiosity as physical systems with confined geometry, reduced dimensionality, and peculiar quantum properties. The exotic features of the nanowires are strongly dependent on their size, shape and morphology, and therefore detailed knowledge of the nanowire fine atomic structure is indispensable. The present paper gives an overview on the problem of structural instability, spontaneous breakdown, and complete disintegration of metal nanowires located on epitaxial interfaces or free‐standing in space. The introduced new physical model reveals specific multi‐step vacancy‐mediated mechanism of thermaly activated nanowire rupture. Accounting for the impact of essential physical quantities on the nanowire instability including system temperature, number of defects, lattice mismatch, interface anisotropy, atomic interactions, ridgidity and flexibility, this model identify a general scenario of nanowire decomposition. The complete rupture kinetics of monatomic nanowire breakdown is described by a set of rate equations and on that background expressions are derived for physically important and experimentally accessible quantities including time‐dependent probability for nanowire breakdown and nanowire mean lifetime. The presented ensemble of studies contributes to a new type atomic‐scale design of epitaxial interfaces, giving insight into thermal instability, rupture mechanism and fine tuning of the structural, morphological and thermodynamic properties of a large variety of metal nanowires.

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Section: Three-dimensional Free-standing Nanowiressupporting

confidence: 74%

Section: Three-dimensional Free-standing Nanowiresmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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