New Quantum Phases of Matter in Multidimensional Environments

研究成果包括：(a)多层高tc氧化铜材料中高tc超导性（HTSC）的起源是一种诱导反铁磁有序的超交换相互作用；(b)新的铁基HTSC可以用具有各向同性间隙的多重间隙符号反转s±波模型很好地解释，当FeAs局部结构为正四面体时，其TCis最高；(c) sr_3co_2fe_24o_41在极弱磁场下实现了室温磁电效应；(d)该理论从理论上表明价跃迁的量子临界点是由磁场引起的，揭示了一种新的量子临界的存在

The research achievements include:(a) that the origin of high-TCsuperconductivity (HTSC) in multilayer high-Tc copper-oxides materials is a super-exchange interaction that induces antiferromagnetic ordering;(b) that new iron-based HTSC can be well explained using a multiple gap sign-reversing s±wave model with isotropic gaps and its TCis highest when the FeAs local structure is regular tetrahedral;(c) that the room-temperature magneto-electric effect was realized in Sr_3Co_2Fe_24O_41at very weak magnetic field;(d) that the theory has theoretically shown that the quantum critical point of valence transitions is induced by a magnetic field, unraveling the existence of a novel quantum criticality