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Sun, XY; Li, Y; Ma, YQ; Zhang, ZX; Zhang, ZX (reprint author), Soochow Univ, Ctr Soft Condensed Matter Phys & Interdisciplinar, Suzhou 215006, Peoples R China.; Ma, YQ (reprint author), Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China.; Ma, YQ (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zhang, ZX (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.
Direct observation of melting in a two-dimensional driven granular system
发表期刊SCIENTIFIC REPORTS
语种英语
摘要Melting is considered to be one of the most fundamental problems in physical science. Generally, dimensionality plays an important role in melting. In three-dimension, it's well known that a crystal melts directly into a liquid via a first-order transition. In two-dimension (2D), however, the melting process has been widely debated whether it is a first-order transition or a two-step transition with an intermediate hexatic phase. Experimentally 2D melting has been intensively studied in equilibrium systems such as molecular and colloidal crystals, but rarely been explored in non-equilibrium system such as granular materials. In this paper, we experimentally studied the 2D melting in a driven granular model system at single particle level using video recording and particle tracking techniques. Measurements of orientational/translational correlation functions show evidences that the melting is a two-step transition. A novel concept of orientational/translational susceptibilities enable us to clearly resolve the intermediate hexatic phase. Our results are in excellent agreement with the two-step melting scenario predicted by KTHNY theory, and demonstrate that the KTHNY melting scenario can be extended to non-equilibrium systems.
2016
卷号6页码:24056
学科领域Science & Technology - Other Topics
DOIhttp://dx.doi.org/10.1038/srep24056
收录类别SCI
项目资助者National Basic Research Program of China [2012CB821500] ; National Basic Research Program of China [2012CB821500] ; National Basic Research Program of China [2012CB821500] ; National Basic Research Program of China [2012CB821500] ; National Natural Science Foundation of China [21522404, 21174101, 11574222] ; National Natural Science Foundation of China [21522404, 21174101, 11574222] ; National Natural Science Foundation of China [21522404, 21174101, 11574222] ; National Natural Science Foundation of China [21522404, 21174101, 11574222] ; Project for Jiangsu Scientific and Technological Innovation Team ; Project for Jiangsu Scientific and Technological Innovation Team ; Project for Jiangsu Scientific and Technological Innovation Team ; Project for Jiangsu Scientific and Technological Innovation Team ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21701
专题理论物理所科研产出_SCI论文
通讯作者Ma, YQ; Zhang, ZX (reprint author), Soochow Univ, Ctr Soft Condensed Matter Phys & Interdisciplinar, Suzhou 215006, Peoples R China.; Ma, YQ (reprint author), Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China.; Ma, YQ (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zhang, ZX (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.
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GB/T 7714
Sun, XY,Li, Y,Ma, YQ,et al. Direct observation of melting in a two-dimensional driven granular system[J]. SCIENTIFIC REPORTS,2016,6:24056.
APA Sun, XY.,Li, Y.,Ma, YQ.,Zhang, ZX.,Zhang, ZX .,...&Zhang, ZX .(2016).Direct observation of melting in a two-dimensional driven granular system.SCIENTIFIC REPORTS,6,24056.
MLA Sun, XY,et al."Direct observation of melting in a two-dimensional driven granular system".SCIENTIFIC REPORTS 6(2016):24056.
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