Complexity, symmetry and strong correlation
讲座名称：
Complexity, symmetry and strong correlation
讲座时间：
2015-06-15
讲座人：
Jak Chakhalian
形式：
校区：
兴庆校区
实践学分：
讲座内容：
题目: Complexity, symmetry and strong correlation
时间: 2015年06月15日 15:00
地点: 中一楼3113
报告人: Jak Chakhalian
报告摘要：
Complex oxides are a class of materials characterized by a variety of competing interactions that create a subtle balance to define the lowest energy state and lead to a wide diversity of intriguing properties ranging from high Tc superconductivity to exotic magnetism and orbital phenomena. By utilizing bulk properties of these materials as a starting point, interfaces between different classes of complex oxides offer a unique opportunity to break the fundamental symmetries present in the bulk and alter the local environment.
Harnessing our recent advances in complex oxide growth, we can combine materials with distinct or even incompatible order parameters to create novel materials in the form of heterostructures with atomic layer precision. The broken lattice symmetry, strain, and altered chemical and electronic environments at the interfaces then provide a unique laboratory to manipulate this subtle balance and enable novel quantum many-body states not attainable in bulk. Understanding of these phases however requires detailed microscopic studies of the heterostructure properties. In this talk I will introduce ideas of complexity, broken symmetry and strong correlations in ultra-thin layers of nickelates, titanates and cuprate-manganite heterostructures to illustrate recently uncovered principles of rational materials design and control of collective quantum states by the interface.
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