Creation and control of charge cluster glass phases

电荷簇玻璃相的产生和控制

• 批准号: 21340106
• 负责人: TERASAKI Ichiro
• 金额: $ 11.23万
• 依托单位: Nagoya University (2010-2011)Waseda University (2009)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21340106/
• 关键词: 強相関系; 強相関電子; 電荷秩序; 巨大応答; 不均一分布; グラス相; 本質的不均一; 有機導体; 遷移金属酸化物; 非平衡状態

Charge order is a kind of electronic phase that is realized in strongly correlated electron systems, which is driven by the inter-site Coulomb repulsion. Thus depending on the anisotropy of the inter-site Coulomb repulsion, conduction electrons are regularly localized with different patterns. Some of them will compete and coexist to show a glass-like pattern consisting of charge-ordered domains. The principal investigator calls this“charge cluster glass", and have tried to create and control this new electron phase. Some of the results highlights(1) a charge cluster glass is created in rapidly-cooledθ-(BEDT-TTF) 2RbZn(SCN) 4, and the nonlinear conduction in this glass phase is controlled,(2) anomalous dielectric relaxation is discovered inκ-(BEDT-TTF) 2Cu2(CN) 3, which is ascribed to a cluster glass phase of different antiferroelectric domains,(3) a new type of cluster glass phase is discovered inβ-(meso-DMBEDT-TTF) 2PF6, which is composed of dimmer Mott insulator phase and charge ordered phase. Through these findings, the principal investigator has clarified that the cluster glass phases discovered in this research share generic features in common as a competing ordered state in strongly correlated electron systems.

电荷顺序是一种电子相，它在密切相关的电子系统中实现，由地点间库仑排斥力驱动。这取决于地点间库仑排斥的各向异性，传导电子经常以不同的方式定位。其中一些将竞争并共存，以显示由电荷订购的域组成的玻璃样图案。主要研究人员称此“电荷群集玻璃”称为，并试图创建和控制这个新的电子阶段。一些结果突出显示（1）在快速冷却的θ-（bedt-ttf）2rbzn（SCN）4中产生了电荷簇玻璃，并且控制了该玻璃相中的非线性传导，（2）在κ-（bedtttttf）2cu2（cn）2cu2（cn）2cu2（cn）2cu2（cn）3中，发现异常的饮食弛豫，是玻璃均分配的，玻璃相差（clastrort）。发现了新型的簇玻璃相，以β-（Meso-dmbedt-TTF）2pf6发现，该2pf6由调光器Mott绝缘体相和电荷有序相组成。通过这些发现，已经澄清了主要研究者，在本研究中发现的群集玻璃相共享通用特征，作为在强相关的电子系统中作为竞争有序状态的共同特征。

项目成果

A mechanism of inverter effect in the organic thyristor

有机晶闸管逆变效应的机理

• 发表时间: 2010
• 作者: Y. Nemoto;Y. Ikeda;T. Nishikata;G. Ano;K. Araki;K. Mitsumoto;M. Akatsu;T. Goto;N. Kurotaki;N. Takeda;I.Terasaki
• 通讯作者: I.Terasaki

有機導体の電荷秩序と電流効果

有机导体中的电荷顺序和电流效应

• 发表时间: 2010
• 作者: S.Nishihara;S.Mori;et al.;寺崎一郎
• 通讯作者: 寺崎一郎

Nonequilibrium Charge Ordering inθ-(BEDT-TTF)_2MM'(SCN)_4(M=Rb, Cs ; M'=Co, Zn)

θ-(BEDT-TTF)_2MM(SCN)_4(M=Rb, Cs; M=Co, Zn) 中的非平衡电荷排序

• 发表时间: 2010
• 期刊: Physica
• 作者: I. Terasaki;S. Tasaki;S. Ajisaka;Y. Nogami;N. Hanasaki;M. Watanabe;H. Mori;and T. Mori
• 通讯作者: and T. Mori

A mechanism of inverter effect in the organic thyristor ISSP-MDF Workshop

有机晶闸管中逆变效应的机理 ISSP-MDF 研讨会

• 发表时间: 2010
• 作者: I. Terasaki;T. Suko;H. Mori;T. Mori;M. Watanabe and Y. Nogami
• 通讯作者: M. Watanabe and Y. Nogami

Nonlinear conduction phenomena in the Mott insulator Ca_2RuO_2

莫特绝缘体Ca_2RuO_2中的非线性传导现象

• 发表时间: 2012
• 作者: R. Okazaki;Y. Nishina;Y. Yasui;I. Terasaki;F. Nakamura;Y. Kimura;M. Sakaki;T. Suzuki
• 通讯作者: T. Suzuki