通过拉曼散射对κ-(BEDT-TTF)Cu(NCS)块体和纳米颗粒中不良金属相的特征及其向费米液体的转变进行可能的观测。
Possible observation of the signature of the bad metal phase and its crossover to a Fermi liquid in κ-(BEDT-TTF)Cu(NCS) bulk and nanoparticles by Raman scattering.
作者信息
Revelli Beaumont M, Hemme P, Gallais Y, Sacuto A, Jacob K, Valade L, de Caro D, Faulmann C, Cazayous M
机构信息
Laboratoire Matériaux et Phénomènes Quantiques (UMR 7162 CNRS), Université de Paris, 75205 Paris Cedex 13, France. Laboratoire de Chimie de Coordination (UPR 8241), Université Paul Sabatier Toulouse, France.
出版信息
J Phys Condens Matter. 2021 Jan 19;33(12):125403. doi: 10.1088/1361-648X/abd813.
κ-(BEDT-TTF)Cu(NCS) has been investigated by Raman scattering in both bulk and nanoparticle compounds. Phonon modes from 20 to 1600 cm have been assigned. Focusing on the unexplored low frequency phonons, a plateau in frequencies is observed in the bulk phonons between 50 and 100 K and assigned to the signature of the bad metal phase. Nanoparticles of κ-(BEDT-TTF)Cu(NCS) exhibit anomalies at 50 K associated to the crossover from a bad metal to a Fermi liquid whose origins are discussed.
通过拉曼散射对块状和纳米颗粒化合物中的κ-(BEDT-TTF)Cu(NCS)进行了研究。已确定了20至1600厘米的声子模式。聚焦于未被探索的低频声子，在50至100K的块状声子中观察到频率平台，并将其归因于不良金属相的特征。κ-(BEDT-TTF)Cu(NCS)的纳米颗粒在50K时表现出与从不良金属到费米液体转变相关的异常现象，并对其起源进行了讨论。
Zotero 插件