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Electric field induced phase transition in charge-ordered LuFe2O4
The measurements of resistance under various applied voltages as well as the highly nonlinear current-voltage characteristics reveal that a small electric field is able to induce an insulating to…
Memory effects in an interacting magnetic nanoparticle system.
Striking memory effects in the dc magnetization and magnetic relaxation that support the existence of a spin-glass-like phase in interacting magnetic nanoparticles and an asymmetric response with respect to temperature change that supports a hierarchical picture, rather than the droplet model discussed in other works on nanoparticle systems.
Exchange bias associated with phase separation in the perovskite cobaltite La 1 − x Sr x CoO 3
We measured resistivity and Andreev reflection spectroscopy on LiTi2O4 polycrystalline samples (T-c approximate to 12.3 K) synthesized by a new method. Resistivity shows the metallic temperature…
Nonvolatile electric-field control of magnetization in a Y-type hexaferrite
The prominent direct and converse magnetoelectric effects in the Y-type hexaferrite BaSrCoZnFe11AlO22 single crystal highlight the promise of hexaferrites as potential multiferroic materials.
Observation of Magnetoelectric Multiferroicity in a Cubic Perovskite System: LaMn(3)Cr(4)O(12).
The unique multiferroic phenomenon observed in this cubic perovskite cannot be understood by conventional spin-driven microscopic mechanisms, and a nontrivial effect involving the interactions between two magnetic sublattices is likely to play a crucial role.
Quantum electric-dipole liquid on a triangular lattice
A series of experimental lines of evidence are presented, including dielectric permittivity, heat capacity and thermal conductivity measured down to 66 mK, to reveal the existence of an unusual liquid-like quantum phase in BaFe12O19, characterized by itinerant low-energy excitations with a small gap.
High‐temperature ferroelectricity and strong magnetoelectric effects in a hybrid organic–inorganic perovskite framework
A Cu‐based organic–inorganic perovskite framework exhibits high‐temperature ferroelectricity with strong magnetoelectric effects. Both electric field control of magnetization and magnetic field…
Quantum tunneling of magnetization in a metal-organic framework.
This work extends the resonant quantum tunneling of magnetization to a new class of materials but also evokes the important role of hydrogen bonding in organic magnetism.
Contribution of magnetostatic interaction to magnetization reversal of Fe3Pt nanowires arrays: A micromagnetic simulation
Persistent multiferroicity without magnetoelectric effects in CuO
Multiferroicity and magnetoelectric effects in CuO have been investigated by measurements of magnetization, dielectric constant, and electric polarization with and without magnetic fields. Dielectric…