Direct observation of melting in a two-dimensional driven granular system
文献类型：期刊论文
| 作者 | Zhang, ZX (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.; Li, Y; Ma, YQ; Zhang, ZX ; Zhang, ZX (reprint author), Soochow Univ, Ctr Soft Condensed Matter Phys & Interdisciplinar, Suzhou 215006, Peoples R China.; Sun, XY; 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.
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| 刊名 | SCIENTIFIC REPORTS
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| 出版日期 | 2016 |
| 卷号 | 6页码:24056 |
| DOI | http://dx.doi.org/10.1038/srep24056 |
| 英文摘要 | 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. |
| 学科主题 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21701]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Zhang, ZX (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.; 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. |
| 推荐引用方式 GB/T 7714 | Zhang, ZX ,Li, Y,Ma, YQ,et al. Direct observation of melting in a two-dimensional driven granular system[J]. SCIENTIFIC REPORTS,2016,6:24056. |
| APA | Zhang, ZX .,Li, Y.,Ma, YQ.,Zhang, ZX.,Zhang, ZX .,...&Ma, YQ .(2016).Direct observation of melting in a two-dimensional driven granular system.SCIENTIFIC REPORTS,6,24056. |
| MLA | Zhang, ZX ,et al."Direct observation of melting in a two-dimensional driven granular system".SCIENTIFIC REPORTS 6(2016):24056. |
入库方式： OAI收割
来源：理论物理研究所
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