Syntheses, structures, and magnetic properties of three new MnII–[MoIII(CN)7]4−molecular magnets

2018 ◽  
Vol 47 (34) ◽  
pp. 11873-11881 ◽  
Author(s):  
Xiao-Qin Wei ◽  
Qian Pi ◽  
Fu-Xing Shen ◽  
Dong Shao ◽  
Hai-Yan Wei ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Long Range ◽  
Magnetic Ordering ◽  
Molecular Magnets

Three cyanide-bridged 3D long-range magnetic ordering complexes were successfully synthesized and magnetically characterized. These compounds are the first [MoIII(CN)7]4−-based materials containing the bidentate secondary ligands.

scholarly journals The Peter Day Series of Magnetic (Super)Conductors

2021 ◽  
Vol 7 (7) ◽  
pp. 93
Author(s):  
Samia Benmansour ◽  
Carlos J. Gómez-García
Keyword(s):  
Magnetic Properties ◽  
Electrical Properties ◽  
Metal Complexes ◽  
Long Range ◽  
Magnetic Ordering ◽  
Metallic Conductivity ◽  
Electrical And Magnetic Properties ◽  
Super Conducting ◽  
Paramagnetic Metals

Here, we review the different series of (super)conducting and magnetic radical salts prepared with organic donors of the tetrathiafulvalene (TTF) family and oxalato-based metal complexes (ox = oxalate = C2O42−). Although most of these radical salts have been prepared with the donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF = ET), we also include all the salts prepared with other TTF-type donors such as tetrathiafulvalene (TTF), tetramethyl-tetrathiafulvalene (TM-TTF), bis(ethylenediseleno)tetrathiafulvalene (BEST), bis(ethylenedithio)tetraselenafulvalene (BETS) and 4,5bis((2S)-2-hydroxypropylthio)-4’,5’-(ethylenedithio)tetrathiafulvalene (DMPET). Most of the oxalate-based complexes are monomers of the type [MIII(C2O4)3]3−, [Ge(C2O4)3]2− or [Cu(C2O4)2]2−, but we also include the reported salts with [Fe2(C2O4)5]4− dimers, [MII(H2O)2[MIII(C2O4)3]2]4− trimers and homo- or heterometallic extended 2D layers such as [MIIMIII(C2O4)3]− and [MII2(C2O4)3]2−. We will present the different structural families and their magnetic properties (such as diamagnetism, paramagnetism, antiferromagnetism, ferromagnetism and even long-range magnetic ordering) that coexist with interesting electrical properties (such as semiconductivity, metallic conductivity and even superconductivity). We will focus on the electrical and magnetic properties of the so-called Day series formulated as β”-(BEDT-TTF)4[A+MIII(C2O4)3]·G, which represents the largest family of paramagnetic metals and superconductors reported to date, with more than fifty reported examples.

A Vacancy-Disordered, Oxygen-Deficient Perovskite with Long-Range Magnetic Ordering: Local and Average Structures and Magnetic Properties of Sr2Fe1.5Cr0.5O5

2012 ◽  
Vol 51 (4) ◽  
pp. 2638-2644 ◽  
Author(s):  
Farshid Ramezanipour ◽  
John E. Greedan ◽  
Joan Siewenie ◽  
Ronald L. Donaberger ◽  
Stuart Turner ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Long Range ◽  
Magnetic Ordering ◽  
Average Structures

ChemInform Abstract: A Vacancy-Disordered, Oxygen-Deficient Perovskite with Long-Range Magnetic Ordering: Local and Average Structures and Magnetic Properties of Sr2Fe1.5Cr0.5O5.

ChemInform ◽  
2012 ◽  
Vol 43 (18) ◽  
pp. no-no
Author(s):  
Farshid Ramezanipour ◽  
John E. Greedan ◽  
Joan Siewenie ◽  
Ronald L. Donaberger ◽  
Stuart Turner ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Long Range ◽  
Magnetic Ordering ◽  
Average Structures

scholarly journals Interdependent scaling of long-range oxygen and magnetic ordering in nonstoichiometric Nd2NiO4.10

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Sumit Ranjan Maity ◽  
Monica Ceretti ◽  
Lukas Keller ◽  
Jürg Schefer ◽  
Martin Meven ◽  
...  
Keyword(s):  
Long Range ◽  
Magnetic Ordering

scholarly journals Emergent long-range magnetic order in ultrathin (111)-oriented LaNiO3 films

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Margaret M. Kane ◽  
Arturas Vailionis ◽  
Lauren J. Riddiford ◽  
Apurva Mehta ◽  
Alpha T. N’Diaye ◽  
...  
Keyword(s):  
Long Range ◽  
Degrees Of Freedom ◽  
Magnetic Order ◽  
Magnetic Ordering ◽  
Anomalous Hall Effect ◽  
X Ray Diffraction ◽  
X Ray ◽  
Range Magnetic Order ◽  
Film Substrate ◽  
Long Range Magnetic Order

AbstractThe emergence of ferromagnetism in materials where the bulk phase does not show any magnetic order demonstrates that atomically precise films can stabilize distinct ground states and expands the phase space for the discovery of materials. Here, the emergence of long-range magnetic order is reported in ultrathin (111) LaNiO3 (LNO) films, where bulk LNO is paramagnetic, and the origins of this phase are explained. Transport and structural studies of LNO(111) films indicate that NiO6 octahedral distortions stabilize a magnetic insulating phase at the film/substrate interface and result in a thickness-dependent metal–insulator transition at t = 8 unit cells. Away from this interface, distortions relax and bulk-like conduction is regained. Synchrotron x-ray diffraction and dynamical x-ray diffraction simulations confirm a corresponding out-of-plane unit-cell expansion at the interface of all films. X-ray absorption spectroscopy reveals that distortion stabilizes an increased concentration of Ni2+ ions. Evidence of long-range magnetic order is found in anomalous Hall effect and magnetoresistance measurements, likely due to ferromagnetic superexchange interactions among Ni2+–Ni3+ ions. Together, these results indicate that long-range magnetic ordering and metallicity in LNO(111) films emerges from a balance among the spin, charge, lattice, and orbital degrees of freedom.

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