intTypePromotion=1
ADSENSE

External magnetic field

Xem 1-18 trên 18 kết quả External magnetic field
  • In this paper, we consider the mean-field Heisenberg model with deterministic external magnetic field. We prove a large deviation principle for Sn/n with respect to the associated Gibbs measure, where Sn/n is the scaled partial sum of spins. In particular, we obtain an explicit expression for the rate function.

    pdf9p vihermes2711 01-10-2019 3 0   Download

  • In this work, we proposed a simple model for control of optical properties via an external magnetic field in a vee-type degenerated atomic medium. By numerically solving the density matrix equations in the steady-state, we show that the absorption and dispersion properties are influenced by the strength of coupling laser and external magnetic fields.

    pdf8p vimax2711 27-03-2020 5 0   Download

  • Effect of magnetic field on the electrodeposition of FeCo layers has been investigated with respect to the orientation of the magnetic field to surface electrode e.g magnetic field is parallel and perpendicular to electrode. Electrochemical behaviours, morphology, composition, structure and magnetic properties were investigated using cyclic voltammogram (CV), Scanning Electron Microscopy (SEM), Energy Dispersion Spectroscopy (EDS), X-Ray Diffractometer (XRD), Vibrating Sample Magnetometer (VSM).

    pdf5p giesumanh 13-11-2018 12 0   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Electron-Spin Precession in Dependence of the Orientation of the External Magnetic Field

    pdf4p dauphong17 21-02-2012 41 4   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: The permeability of SPION over an artificial three-layer membrane is enhanced by external magnetic field

    pdf9p toshiba25 08-12-2011 29 2   Download

  • The Hall effect is studied theoretically in a doped semiconductor superlattice (DSSL) subjected to a crossed dc electric field and magnetic field in the presence of an intense electromagnetic wave (EMW). By using the quantum kinetic equation for electrons interacting with acoustic phonons at low temperature, we obtain expressions for the magnetoresistance as well as the Hall coefficient in dependence on the external fields and characteristic parameters of the DSSL. Analytical results are numerically evaluated for the GaAs:Si/GaAs:Be DSSL.

    pdf6p thuyliebe 09-10-2018 24 0   Download

  • This investigation was carried out under an external magnetic field fixed at 4 kOe to ensure for all the Co-granule magnetization being kept in a fixed incident light propagating direction. Results showed a rather remarkable angular dependence of T(φ) on the Co content for different wavelengths. It was attributed the behavior of this to be dependent on the so-called magnonphoton interaction.

    pdf7p cumeo3000 01-08-2018 16 0   Download

  • This study investigated the elimination of Cr(VI) from aqueous solution utilizing a composite from magnetic nanoparticles (Fe3O4) capped with cetyltrimethylammonium bromide (CTAB). The structure of the prepared composite system was examined by Fourier Transform Infra Red Spectroscopy (FTIR), X-ray Diffractometry (XRD), and Transmission Electron Microscopy (TEM). Separation of the Fe3O4/CTAB composite from the wastewater can be achieved by application of an external magnetic field.

    pdf9p trinhthamhodang1 16-11-2019 11 0   Download

  • Superparamagnetic iron oxide nanoparticles (MNP) offer several advantages for applications in biomedical and biotechnological research. In particular, MNP-based immobilization of enzymes allows high surface-to-volume ratio, good dispersibility, easy separation of enzymes from the reaction mixture, and reuse by applying an external magnetic field.

    pdf9p viuchiha2711 21-04-2020 6 0   Download

  • The acoustomagnetoelectric (AME) field in a quantum well with an infinity potential (QWIP) has been studied in the presence of an external magnetic field. The analytic expression for the AME field in the QWIP was obtained by using the quantum kinetic equation for the distribution function of electrons interacting with the acoustic wave.

    pdf4p vitexas2711 05-11-2020 1 0   Download

  • NMR is an experiment in which the resonance frequencies of nuclear magnetic systems are investigated. NMR always employs some form of magnetic field (usually a strong externally applied field B0) NMR is a form of both absorption and emission spectroscopy, in which resonant radiation is absorbed by an ensemble of nuclei in a sample, a process causing detectable emissions via a magnetically induced electromotive force.

    pdf20p qdung92ct 03-07-2012 91 10   Download

  • Chapter 13 - Nuclear magnetic resonance spectroscopy. In this chapter, students will be able to understand: Use the chemical shifts, splitting patterns, and integrations shown in a proton NMR spectrum to propose structures for possible compounds; use the number of peaks and their chemical shifts in a 13C NMR spectrum to determine the number of types of carbon atoms in the compound and what functional groups they might represent;...

    ppt71p tangtuy02 11-03-2016 41 2   Download

  • Magnetic nanoparticles absorb energy from external alternating magnetic field to create a nanosized heating source. Specific loss power (SLP) is affected strongly by several magnetic parameters of material and viscosity of nanofluid. In this study, the specific loss power as dependent on saturation magnetization was calculated for hard ferrite CoFe2O4 (K = 290 kJ/m3 ) and soft ferrite MnFe2O4 (K = 3 kJ/m3 ) with two values of viscosity in biological range 1-2 mPas.

    pdf9p cumeo3000 01-08-2018 13 0   Download

  • In this paper, we present the results of theoretical studies on the opticalelectric-magnetic properties of quantum wires in one-dirction semiconductors in two cases in the presence or absence of external magnetic fields.

    pdf15p vimoskva2711 02-01-2020 3 0   Download

  • Today, research and technology play a decisive role for the European food sector for the development of new products as well as for improved safety measures. In July 2000, DG RTD requested a study on potential future European research priorities in food technology and food safety from the Institute for Prospective Technological Studies (IPTS), Joint Research Centre. The study design comprised the involvement of external expertise from industry as well as from academia: The results of the study were derived from two experts workshops held in Sevilla at the IPTS in December 2000 and May 2001.

    pdf16p conduongdinhmenh 07-05-2013 50 2   Download

  • Purposes of the thesis: Propose physical mechanism to investigate metamaterial absorber operating in THz region. Design, simulation, and characterizations of MA in THz region. Optimize parameter structure to increase absorption and broaden operating wavelength region, modify operating wavelength by external factors.

    pdf27p xacxuoc4321 09-07-2019 16 1   Download

  • In this paper, we employed density function theory to examine the effect of an external static electric field on some properties of iron thin film with the field strength varied up to 0.1V/Å.

    pdf9p vigustavia2711 19-12-2019 4 0   Download

  • Modeling and simulation of dynamic systems is Pham Huy Hoang Electromotive force (emf) voltage (electromotance): is that which tends to cause current (actual electrons and ions) to flow, is the external work expended per unit of charge to produce an electric potential difference across two open-circuited terminals.

    pdf13p 1love123 30-08-2017 36 3   Download

CHỦ ĐỀ BẠN MUỐN TÌM

TOP DOWNLOAD
207 tài liệu
1052 lượt tải
ADSENSE

p_strKeyword=External magnetic field
p_strCode=externalmagneticfield

nocache searchPhinxDoc

 

Đồng bộ tài khoản
2=>2