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Thermo-Magneto-Electric Currents with Dynamical Magnetization Inhomogeneities

Thermo-Magneto-Electric Currents with Dynamical Magnetization Inhomogeneities
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摘要 We study the effect of potential and thermal gradient induced non-equilibrium magnetization in quasi1-d itinerant magnets.A semi-phenomenological theory is employed in conjunction with the drift-diffusion model forthis study.Using the methods of non-equilibrium thermodynamics,we derive the transport currents correspondingto charge,heat,and magnetization flows in the presence of non-equilibrium magnetization textures.It is shown howtime-dependent magnetic textures give rise to charge and thermal currents even in the absence of external potential andthermal gradients through spin pumping.The presence of dynamical textures also affect the thermodynamic parametersof the system.As an application,we consider the case of a helimagnet.
出处 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第9期504-512,共9页 理论物理通讯(英文版)
关键词 current and temperature driven spin pumping THERMOELECTRIC thermomagnetic 充电电流 磁化 非平衡态热力学 不均匀 热磁 漂移扩散模型 动态纹理 一维流动
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