نتایج جستجو برای: spin system
تعداد نتایج: 2335645 فیلتر نتایج به سال:
The Spin tool set (Spin and Xspin) was used to validate parts of the design of a storm surge barrier control system, in particular the communication interfaces with the outside world. Promela combined with Z is used to specify crucial aspects of the design. In this talk we outline our experience with the use of Spin and Promela, and discuss some ideas for extensions/improvements.
In this paper a simple model calculation of spin wave is given for the ferromagtic layer in ultra thin ferromagnetic/antiferromagnetic bilayer. In this model the magnetic layer is assumed as an isolated layer but the effect of antiferromagnetic layer on ferromagnetic layer and unidirectional anisotropy, is given in the effective field applied on each spin. The thin layer is assumed as two-dim...
Two-dimensional heterostructures with strong spin-orbit coupling have direct relevance to topological quantum materials and potential applications in spin-orbitronics. In this work, we report on novel quantum phenomena in [Pb2BiS3][AuTe2], a new 2D strong spin-orbit coupling heterostructure system. Transport measurements reveal the spin-related carrier scattering is at odds with the Abrikosov-G...
An operating system that emulates Unix supports a wide range of popular applications. This paper describes the SPIN Unix Server, an implementation of Unix for the SPIN operating system. The SPIN Unix Server is a user-level application program supported by extensions that are dynamically linked into the SPIN kernel. It exports a traditional Unix system interface and provides backwards compatibil...
One of the most important topics in spintronics is spin transport. In this work, spin transport properties of two-dimensional electron gas in Al(x)Ga(1-x)N/GaN heterostructure were studied by helicity-dependent photocurrent measurements at room temperature. Spin-related photocurrent was detected under normal incidence of a circularly polarized laser with a Gaussian distribution. On one hand, sp...
Background & Aims: The purpose of this study was the standardization of the Social Phobia Inventory (SPIN) in nonclinical Iranian sample based on their sex, academic year, native/non-native trait and college. Materials & Methods: The participants were 1743 students of Shahed University who were studying in 2010-2011 academic year and were selected by cluster sampling and completed Social Phobi...
The pyrochlore material Ho2Ti2O7 has been suggested to show "spin ice" behavior. We present neutron scattering and specific heat results that establish unambiguously that Ho2Ti2O7 exhibits spin ice correlations at low temperature. Diffuse magnetic neutron scattering is quite well described by a nearest neighbor spin ice model and very accurately described by a dipolar spin ice model. The heat c...
Considerable advances have been made in recent years in the understanding of Ising spin glass models in two and three dimensions. Models with continuous degrees-of-freedom, which are often more realistic in describing physical systems, have received much less attention. We study properties of domain-wall excitations in continuous-spin glass systems by means of extensive numerical ground-state c...
Because the key issue in quantum information and quantum computing is entanglement, the investigation of the effects of environment, as a source of quantum dissipation, and interaction between environment and system on entanglement and quantum phase transition is important. In this paper, we consider two-qubit system in the anisotropic Heisenberg XXZ model with the Dzyaloshinskii-moriya inter...
Dynamic behavior of a circular shaft with geometrical nonlinearity and constant spin, subjected to periodic axial load is investigated. The case of parametric combination resonance is studied. Extension of shaft center line is the source of nonlinearity. The shaft has gyroscopic effect and rotary inertia but shear deformation is neglected. The equations of motion are derived by extended Hamilto...
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