Exchange coupling effect
The effect is due to the wave function of indistinguishable particles being subject to exchange symmetry, that is, either remaining unchanged (symmetric) or changing sign (antisymmetric) when two particles are exchanged. Both bosons and fermions can experience the exchange interaction. See more In chemistry and physics, the exchange interaction (with an exchange energy and exchange term) is a quantum mechanical effect that only occurs between identical particles. Despite sometimes being called an exchange force … See more In a crystal, generalization of the Heisenberg Hamiltonian in which the sum is taken over the exchange Hamiltonians for all the (i,j) pairs … See more • Double-exchange mechanism • Exchange symmetry • Pauli exclusion principle See more The exchange interaction is sometimes called the exchange force. However, it is not a true force and should not be confused with the exchange forces produced by the … See more Quantum mechanical particles are classified as bosons or fermions. The spin–statistics theorem of quantum field theory demands that all particles with half-integer spin behave as fermions and all particles with integer spin behave as bosons. Multiple … See more • Exchange Mechanisms in E. Pavarini, E. Koch, F. Anders, and M. Jarrell: Correlated Electrons: From Models to Materials, Jülich 2012, ISBN 978-3-89336-796-2 • Exchange Interaction and Energy • Exchange Interaction and Exchange Anisotropy See more WebDec 21, 2024 · The devices originally exhibit a negative exchange bias field, which decays with increasing temperature and is unaffected by the back-gate voltage. When we change the device configuration to be half-covered by CrI 3, the exchange bias becomes positive with a very large exchange bias field exceeding 300 mT.
Exchange coupling effect
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WebDec 1, 2024 · In summary, we have investigated the TMR sensors based on the double indirect exchange coupling effect. The MgO based MTJs with TMR ratio of about 150% was demonstrated in these specific structures with the sensitivities of 1.85%/Oe with the linear field range of 50 Oe. WebMay 27, 2024 · Our results suggest that the exchange coupling in ferromagnet/noncoplanar antiferromagnet bilayers could be an alternative mechanism …
WebMay 25, 2024 · Finally, the coupling effects of the compressor speed, ambient temperature and optimal air flow rate on the system performance was also exhaustively assessed. It was found that as the discharge temperature, the CO 2 temperature at the gas cooler outlet and the discharge pressure did not vary more than ±2%, the corresponding gas cooler air ... WebJan 25, 2024 · Compared with the paramagnetic SrCoO 2.5, the exchange bias effect in SrCoO 2.29 was observed. The FM cluster of SrCoO 3-x embeded in an AFM background brings about the exchange coupling at the FM/AFM interface which is responsible for the EB phenomenon. Due to complicated magnetic states, the EB effect shows strong …
WebJan 23, 2024 · The Ir layer not only provides SOTs via spin Hall effect, but also induce interlayer exchange coupling with an in-plane magnetic layer that eliminates the need for the external field. Such... WebJun 15, 2015 · In the past years, extensive work has been devoted to the heterostructures with a ferromagnetic (FM) /antiferromagnetic (AFM) exchange coupling interface 1,2,3,4,5,6.The exchange bias effect 7 ...
WebInterlayer exchange coupling in multilayer or trilayer essentially originates from the quantum confinement effect. In this paper, we first review the physical origin and …
WebJun 15, 2015 · In the past years, extensive work has been devoted to the heterostructures with a ferromagnetic (FM) /antiferromagnetic (AFM) exchange coupling interface … lower ridge farm fishery saughallWebApr 9, 2024 · This study aimed to determine the effect of irrigation amount (W), nitrogen (N), potassium (K), and zinc (Zn) on the net photosynthetic rate (Pn) of closely planted apple trees on dwarf rootstocks in arid areas of Xinjiang. Taking the “Royal Gala” apple as the experimental material, a mathematical model for Pn was … horror night nightmaresWebMar 4, 2024 · We directly probe the magnetic proximity effect using x-ray magnetic circular dichroism and polarized neutron reflectometry, which reveal an antiferromagnetic … horror night las vegas