Creation of solid-state functionalities using bimolecules.

我们主要研究了一个具有动态自旋-电荷-晶格耦合的一维金属-二聚体系统，它显示了与金属-绝缘体跃迁相关的多种电荷有序态。在本文中，我们提出了一个存在J-D…的MMX链系统-I-M-M-I-…锁链。下面列出了MMX链的一些可能的一维结构模式。我们重点研究了一个具有动态自旋-电荷-晶格耦合的一维金属-二聚体系统，显示了与金属-绝缘体跃迁相关的多种电荷有序状态。在本文中，我们提出了一个存在J-D…的MMX链系统-I-M-M-I-…锁链。MMX链的一些可能的一维结构模式如下：(1)---M2.5+-M2.5+―X―M2.5+-M2.5+―X―M2.5+-M2.5+―X---(2)---M2+-M2―X-M3+-M3+-X―M2+-M2+―X-M3+-M3+-X---(3)-M2+-M3+-X-M2+-M3+-X---(4)---M2+-M3+-X-M3+-M2+―X―M2+-M3+-X-M3+-M2+―X---According到我们最近的工作，发现Ni_2(MeCS_2)_4I盐表现出菲尔…具有J~-50K(a相)的一维Heisenberg AF磁自旋系统(a相)和具有J~0K(p相)的居里自旋系统之间存在更多的d诱导相变。为了研究两种不同的自旋态，对Ni2(MeCS2)4I进行了几次物理测量，它表现出与Mott-Hubbard绝缘体一致的半导体行为。XPS谱显示了+II和+III的陷阱价态。拉曼光谱、红外光谱、UV-VIS-NIR光谱和磁化率证实了每一相都具有一维结构模式-i-Ni2+-Ni3+-i-Ni3+-Ni2+-i-Ni2.5+-Ni2.5-I-。在2K时，如果施加5T的磁场，则a相转变为p相，即使在室温和零场下也可以获得亚稳态。另一方面，如果在300K下施加5T的磁场，则P相可逆地转变为a相。这种场诱导现象被认为是源于轨道自由度，导致了场诱导的轨道有序化。详细的调查正在进行中。较少

We have focused on a one-dimensional metal-dimer system with dynamical spin-charge-lattice coupling, exhibiting many kinds of charge-ordered states associated with metal-insulator transitions. In this paper, we present on an MMX-chain system in which there exists J-D…-I-M-M-I-… chains. Some of me possible 1-D structural modes for the MMX chain are shown below.We have focused on a one-dimensional metal-dimer system with dynamical spin-charge-lattice coupling, exhibiting many kinds of charge-ordered states associated with metal-insulator transitions. In this paper, we present on an MMX-chain system in which there exists J-D…-I-M-M-I-… chains. Some of me possible 1-D structural modes for the MMX chain are shown below.(1) ---M2.5+-M2.5+―X―M2.5+-M2.5+―X―M2.5+-M2.5+―X---(2) ---M2+-M2―X-M3+-M3+-X―M2+-M2+―X-M3+-M3+-X---(3) ---M2+-M3+-X―M2+-M3+-X―M2+-M3+-X―M2+-M3+-X---(4) ---M2+-M3+-X-M3+-M2+―X―M2+-M3+-X-M3+-M2+―X---According to our recent work, the Ni2(MeCS2)4I salt was found to exhibit a fiel … More d-induced phase transition accompanying a spin transition between a 1-D Heisenberg AF magnetic spin system with J〜-50 K (a-phase) and Curie spin system with J〜0 K (p-phase). In order to investigate two different spin states, several physical measurements were carried out on Ni2(MeCS2)4I.It exhibits a semiconducting behavior, which is consistent with a Mott-Hubbard insulator. The XPS spectra shows a trapped-valence state of +II and +III. Each phase is considered to have the 1-D structural mode of -I―Ni2+-Ni3+-I-Ni3+-Ni2+―I―Ni2.5+-Ni2.5―I-, which was confirmed by Raman, IR, UV-VIS-NIR spectra and magnetic susceptibility.At 2 K, if the magnetic field of 5 T is applied, the a-phase is transformed to the p-phase, which can be obtained as a metastable state even at room temperature and zero-field. On the other hand, if the magnetic field of 5 T is applied at 300 K, the P-phase is reversibly transformed to the a-phase. This field-induced phenomenon is considered to be derived from an orbital degree of freedom, resulting the field-induced orbital ordering. Detailed investigations are in progress. Less