Bulk and surface switching in Mn-Fe-based Prussian Blue Analogues
T. T. A. Lummen, R. Y. N. Gengler, P. Rudolf, F. Lusitani, E. J. M. Vertelman, P. J. van Koningsbruggen, M. Knupfer, O. Molodtsova, J. -J. Pireaux, P. H. M. van Loosdrecht
Many Prussian Blue Analogues are known to show a thermally induced phase transition close to room temperature and a reversible, photo-induced phase transition at low temperatures. This work reports on magnetic measurements, X-ray photoemission and Raman spectroscopy on a particular class of these molecular heterobimetallic systems, specifically on Rb0.81Mn[Fe(CN)6]0.95_1.24H2O, Rb0.97Mn[Fe(CN)6]0.98_1.03H2O and Rb0.70Cu0.22Mn0.78[Fe(CN)6]0.86_2.05H2O, to investigate these transition phenomena both in the bulk of the material and at the sample surface. Results indicate a high degree of charge transfer in the bulk, while a substantially reduced conversion is found at the sample surface, even in case of a near perfect (Rb:Mn:Fe=1:1:1) stoichiometry. Thus, the intrinsic incompleteness of the charge transfer transition in these materials is found to be primarily due to surface reconstruction. Substitution of a large fraction of charge transfer active Mn ions by charge transfer inactive Cu ions leads to a proportional conversion reduction with respect to the maximum conversion that is still stoichiometrically possible and shows the charge transfer capability of metal centers to be quite robust upon inclusion of a neighboring impurity. Additionally, a 532 nm photo-induced metastable state, reminiscent of the high temperature Fe(III)Mn(II) ground state, is found at temperatures 50-100 K. The efficiency of photo-excitation to the metastable state is found to be maximized around 90 K. The photo-induced state is observed to relax to the low temperature Fe(II)Mn(III) ground state at a temperature of approximately 123 K.
Mixed Orbital Ground States of Fe2+ in Prussian Blues
Mössbauer Effect Data Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences（中国科学院大连化学物理研究所）；School of Engineering, The University of Tokyo（东京大学工学部）
Fine and Hyperfine Interactions with Multi-level Spin Relaxation of the purified Giese-Salt in Veterinary Medicine: Prussian Blue Compound Ammonium-Ferric-Hexacyano-Ferrate
University of Veterinary Medicine Hannover Foundation（汉诺威兽医大学基金会）；Leibniz University Hannover（汉诺威莱布尼茨大学）；Technische Universität Berlin（柏林工业大学）；Technische Universität Dresden（德累斯顿工业大学）；TU Bergakademie Freiberg（弗赖贝格矿业技术大学）
Nanoscale resistive switching in electrodeposited MOF Prussian blue analogs driven by K-ion intercalation probed by C-AFM
Université catholique de Louvain (UCLouvain)（天主教鲁汶大学）；University of Applied Sciences Zwickau（茨维考应用技术大学）；Universidad de Granada（格拉纳达大学）；Universitat de Valencia（瓦伦西亚大学）
Water, vacancies, and competing exchange interactions in Prussian blue analogues: a neutron diffraction study of field and dehydration-driven magnetic transitions
Université Paris-Saclay（巴黎萨克雷大学）；CNRS（法国国家科学研究中心）；Laboratoire de Physique des Solides（固体物理实验室）；Synchrotron SOLEIL（Soleil 同步辐射中心）；Institut Néel（内耳研究所）；Université Grenoble Alpes（格勒诺布尔阿尔卑斯大学）；Institut Laue-Langevin（朗之万-劳厄研究所）；ICMMO（无机化学、分子材料和有机材料研究所）；Institut universitaire de France (IUF)（法国高等研究院）
