Spin dynamics in liquid and rotationally disordered solid oxygen
نویسندگان
چکیده
F. Fernandez-Alonso,1,* F. J. Bermejo,2,† I. Bustinduy,2 M. A. Adams,1 and J. W. Taylor1 1ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom 2Instituto de Estructura de la Materia, C.S.I.C., and Departamento de Electricidad y Electrónica Unidad Asociada C.S.I.C., Facultad de Ciencia y Tecnología, Universidad del País Vasco/EHU, P.O. Box 644, E-48080 Bilbao, Spain Received 13 June 2008; revised manuscript received 19 August 2008; published 15 September 2008
منابع مشابه
Rotational dynamics in the plastic-crystal phase of ethanol: Relevance for understanding the dynamics during the structural glass transition
The reorientational dynamics within the rotationally disordered cubic plastic phase of solid ethanol is investigated by means of the concurrent use of computer molecular dynamics and quasielastic neutron scattering. Motions involving widely different time scales are shown to take place above the calorimetric ‘‘glass transition’’ which is centered at Tg'97 K. These correspond to well-defined reo...
متن کاملMagnetic Relaxation in Dynamically Heterogeneous Systems
Nuclear magnetic spin-lattice relaxation in dynamically heterogeneous systems is generally coupled; that is, the rapidly moving liquid components do not relax independently of the rotationally immobilized or solid components. The consequences of this coupling are that the generally observable relaxation rates of the liquid components may not be interpreted using the standard theories of liquid ...
متن کاملCan macular xanthophylls replace cholesterol in formation of the liquid-ordered phase in lipid-bilayer membranes?
Lateral organization of membranes made from binary mixtures of dimyristoylphosphatidylcholine (DMPC) or dipalmitoylphosphatidylcholine (DPPC) and macular xanthophylls (lutein or zeaxanthin) was investigated using the saturation-recovery (SR) EPR spin-labeling discrimination by oxygen transport (DOT) method in which the bimolecular collision rate of molecular oxygen with the nitroxide spin label...
متن کاملمطالعه مدل هایزنبرگ به روش خودسازگار گاؤسی بر روی شبکههای لانه زنبوری و الماسی
The classical J1-J2 Heisenberg model on bipartite lattice exhibits "Neel" order. However if the AF interactions between the next nearest neighbor(nnn) are increased with respect to the nearest neighbor(nn), the frustration effect arises. In such situations, new phases such as ordered phases with coplanar or spiral ordering and disordered phases such as spin liquids can arise. In this paper we ...
متن کاملCoherent spin oscillations in a disordered magnet.
Most materials freeze when cooled to sufficiently low temperature. We find that magnetic dipoles randomly distributed in a solid matrix condense into a spin liquid with spectral properties on cooling that are the diametric opposite of those for conventional glasses. Measurements of the nonlinear magnetic dynamics in the low-temperature liquid reveal the presence of coherent spin oscillations co...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008