نتایج جستجو برای: anti ferromagnetic
تعداد نتایج: 377689 فیلتر نتایج به سال:
in this paper vibration of ferromagnetic rectangular plates which are subjected to an inclined magnetic field is investigated based on classical plate theory and maxwell equations. levy type solution and finite element method using comsol software are used to obtain the frequency of the plate subjected to different boundary conditions, good agreements is obtained when computed results are compa...
Possible consequences of ferromagnetic transition in dense matter suggested recently by Kutschera and Wójcik, for the magnetic properties of neutron stars, are studied. Specific model of dense matter, in which a small admixture of protons is completely polarized due to their interaction with neutrons, is considered. Magnetic field of neutron stars with a ferromagnetic core are calculated within...
It is shown that exchange interactions of spins across the boundary between ferromagnetic and antiferromagnetic layers can cause a shift in the observed hysteresis loop of the ferromagnetic layer. The effect may be interpreted as a self-energy shift of each ferromagnetic spin due to emission and reabsorption of virtual antiferromagnetic spin waves. Emission of these waves by one ferromagnetic s...
Abstract The ocean magnetic anomaly detection based on unmanned underwater vehicles has great significance in military field, such as anti-submarine, anti-mine, and ship property evaluation. But it is easy for magnetometer fixed to be affected by the interference of ferromagnetic equipment electronic equipment. interferential field seriously affects measurement accuracy magnetometer. In this pa...
The QCD axion or axion-like particles are candidates of dark matter the universe. On other hand, excitations exist in certain condensed systems, which implies that there can be interactions with axions. We discuss relationship between and a collective spin-wave excitation an anti-ferromagnetic insulator at quantum level. conversion rate light matter, such as elementary particle hidden photon, i...
We provide strong evidence that the asymptotically free (1+1)-dimensional non-linear O(3) sigma model can be regularized using a quantum lattice Hamiltonian, referred to as "Heisenberg-comb", acts on Hilbert space with only two qubits per spatial site. The Heisenberg-comb consists of spin-half anti-ferromagnetic Heisenberg-chain coupled anti-ferromagnetically second local particle at every Usin...
The intrinsic dissipation of systems into a shared reservoir introduces coherence between two systems, enabling anti-Parity-Time (anti-PT) symmetry. In this paper, we propose an anti-PT symmetric converter, consisting microwave cavity coupled dissipatively to ferromagnetic sphere, which supports significant improvements in the conversion efficiency when compared coherently setups. particular, o...
Colossal electroresistance (CER) has been observed in the ferromagnetic insulating (FMI) state of a manganite. Notably, the CER in the FMI state occurs in the absence of magnetoresistance (MR). Measurements of electroresistance (ER) and current induced resistivity switching have been performed in the ferromagnetic insulating state of a single crystal manganite of composition Nd0.7Pb0.3MnO3 (NPM...
In this paper, we calculate the spin-dependent conductance of ferromagnetic quantum wire in the presence of one or two defects by using Green's function method at the tight-binding approach. We study the effect of rotation of defect magnetic moment on the system conductance. The results show that in the magnetic wire, independent of existence or absence of defect, the allowed energy region shi...
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