Multiferroicity due to charge ordering
Web12 aug. 2012 · Here we provide evidence for ferroelectricity, accompanied by antiferromagnetic spin order, in a two-dimensional organic charge-transfer salt, thus … WebThe multiferroic phase is reached at ~100K when a triangular antiferromagnetic order due to spin frustration arises. Charge ordering Charge ... Khomskii, D. (2008). …
Multiferroicity due to charge ordering
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WebMultiferroicity due to charge ordering 1 Introduction. Recently there has been a new surge of interest in multiferroics (MF’s), single phase compounds in which... 2 Type I … WebCiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): In this contribution to the special issue on multiferroics we focus on multiferroicity driven by different forms of charge ordering. We will present the generic mechanisms by which charge ordering can induce ferroelectricity in magnetic systems. There is a number of …
Web20 mar. 2008 · Evidence is provided for ferroelectricity, accompanied by antiferromagnetic spin order, in a two-dimensional organic charge-transfer salt, thus representing a new … WebIn this contribution to the special issue on multiferroics we focus on multiferroicity driven by different forms of charge ordering. We will present the generic mechanisms by which charge ordering can induce ferroelectricity in magnetic systems. There is a number of specific classes of materials for which this is relevant.
WebIn this contribution I discuss multiferroicity that is driven by different forms of charge ordering, presenting first the generic mechanisms by which charge ordering can induce ferroelectricity in magnetic systems. In type-I multiferroics [1], ferroelectricity and magnetism have different origins and occur at different temperatures. WebCharge ordering of iron ions in LuFe2O4 frustrated electronic ferroelectric with variable valence is considered. Charge degrees of freedom are described in frameworks of Ising model with Coulomb interaction between sites. Mean field approximation is used to find free energies of the most probable structures. Phase diagrams of a single triangular bilayer …
Web30 apr. 2005 · One of the intrinsic property of doped transition metal oxides is the formation of superstructures that are related to the spin, charge and orbital degrees of freedom. Charge ordering is usually considered as an ordering or alternation of the valency of transition metals. Further we will refer it as site-centered charge density wave (SCDW).
Web12 aug. 2012 · This suggests that for κ-Cl a purely electronic, charge-order-driven ferroelectric state, as also considered for other ferroelectric charge-transfer salts 6,9,18,25,26, is realized. black books computer gifWebPDF - In this contribution to the special issue on multiferroics we focus on multiferroicity driven by different forms of charge ordering. We will present the generic mechanisms … galena alaska weatherWeb9 feb. 2024 · On the other hand, the ferroelectricity in type-II multiferroics is induced by magnetic ordering below the magnetic ordering temperature, which implies a strong coupling between the two orders. Thus, type-II multiferroics can be more promising for technological applications. galena and chicago union railroadWeb1 mar. 2015 · In the following, we will review the microscopic mechanisms for multiferroicity that have been proposed and identified so far, paying special attention to the understanding of the origin of ferroelectricity and its coexistence/coupling with magnetic ordering. 2. Microscopic mechanisms for proper multiferroics. 2.1. black books coffeeWebCharge Ordered Multiferroics of Type II Generic idea: in CO material charge can easily be moved over relatively large distances Coupling M to CO →large ME effects Allows for … black books banned by school boardsWebMultiferroicity due to Charge Ordering. van den Brink, Jeroen. In this contribution I discuss multiferroicity that is driven by different forms of charge ordering, presenting … black books comedianWeb9 mar. 2009 · Ferroelectricity due to charge ordering. One more mechanism that can lead to ferroelectricity and to type-I multiferroicity can be charge ordering, often observed in transition metal compounds, especially those formally containing transition metal ions with different valence. black books cast