The possibility for an appreciable many-body contribution to the electron-phonon interaction (EPI) in Fe-pnictides is discussed in the model where EPI is due to the electronic polarization of Asions. The polarization induced EPI potential (EPIpol) is large for vibrations of the As-ions and depends strongly on the As-Fe distance dAs−F e, i.e. Vep ∼ d −4 As−F e. The EPIpol coupling gep(= ∂Vep/∂dA...

The worldwide advent of new laser facilities makes possible the investigation nuclear response to a very strong electromagnetic field. In this paper, we inquire on excitation one most conspicuous collective excitations, giant dipole resonance, within hydrodynamical model for proton-neutron fluid mixture placed in Skyrme mean-field and interacting with an external ultra-strong variables approach...

Cable Tension Sensor Based on Magneto-elastic Effect Sun Zhiyuan Dept. of Instrument Development , Institute of Engineering Mechanics, Harbin. China Email:[email protected] ABSTRACT: This article introduces a sensor based on magneto-elastic effect in order to measure the axial tension of steel cable. We explained the basic principle of the sensor in detail, designed and analyzed the magneti...