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首页> 外文期刊>Physical Review, B. Condensed Matter >EVOLUTION OF LOW-TEMPERATURE PHASES IN A LOW-TEMPERATURE STRUCTURAL TRANSITION OF A LA CUPRATE
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EVOLUTION OF LOW-TEMPERATURE PHASES IN A LOW-TEMPERATURE STRUCTURAL TRANSITION OF A LA CUPRATE

机译:LA杯的低温结构转变中的低温相演化

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The microstructure produced by a low-temperature structural phase transition in La1.5Nd0.4Sr0.1CuO4 has been examined by transmission electron microscopy with the help of imaging plates. The low-temperature transition was found to be proceeded not only by the growth of the Pccn/low-temperature-tetragonal phases nucleated along the twin boundary but also by the nucleation and growth of the phases in the interior of the low-temperature-orthorhombic domain. In addition, because the map of the octahedron tilt as an order parameter is not identical to that of the spontaneous strain accompanied by the transition, the microstructure below the transition is-understood to be a very complex mixture of the low-temperature phases. [References: 21]
机译:La1.5Nd0.4Sr0.1CuO4中的低温结构相变产生的微观结构已通过成像板的透射电子显微镜进行了检查。发现低温转变不仅通过沿孪晶边界成核的Pccn /低温-四方相的生长而进行,而且还通过低温-正交晶内部的相的成核和生长而进行域。另外,由于八面体倾斜度作为阶跃参数的映射与伴随转变的自发应变的映射不同,因此可以理解转变以下的微观结构是低温相的非常复杂的混合物。 [参考:21]

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