منابع مشابه
Homogenization of the three-dimensional Hall effect and change of sign of the Hall coefficient
The notion of a Hall matrix, associated with a possibly anisotropic conducting material in the presence of a small magnetic field, is introduced. Then, for any material having a microstructure we prove a general homogenization result satisfied by the Hall matrix in the framework of the Hconvergence of Murat-Tartar. Extending a result of Bergman, it is shown that the Hall matrix can be computed ...
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We show that when bulk graphene breaks into n-type and p-type puddles, the in-plane resistivity becomes strongly field dependent in the presence of a perpendicular magnetic field even if homogeneous graphene has a field-independent resistivity. We calculate the longitudinal resistivity xx and Hall resistivity xy as a function of field for this system using the effective-medium approximation. Th...
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نتایج این مطالعه نشان می دهد که مقدار کلسیم (یونیزه و تام)، منیزیم و فسفر به طور معنی داری تغییر پیدا کرد به جزء مقدار کلسیم تام و منیزیم در روش داخل عضلانی که تغییر معنی داری نداشته است. بر اساس نتایج این مطالعه می توان نتیجه گیری کرد که اکسی تتراساکلین بر روی مقادیر سرمی کلسیم و منیزیم تأثیر می گذارد باید مقدار این کاتیون ها در بیماران، در هنگامی که اکسی تتراسایکلین استفاده می شود مورد توجه ق...
15 صفحه اولHall coefficient and resistivity of amorphous Ti1-xAlx films.
The resistivity of codeposited amorphous Til „Al films has been measured from 1.5 to 300 K over the composition range 0.4~x ~0.92, and the Hall coefficient has been measured at 4 K. The resistivity exhibits a relatively small temperature dependence. The magnitude of the room-temperature resistivity varies appreciably with composition, with a broad maximum around 250 pQ cm near x =0.5. The Hall ...
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Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan CEA-Grenoble, 38054 Grenoble cedex 9 France Department of Physiscs, Kyoto University, Kyoto 606-8502, Japan Laboratoire de phyque quantique (CNRS), ESPCI, 10 rue de Vauquelin, 75231 Paris, France Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan National Insti...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1953
ISSN: 0031-899X
DOI: 10.1103/physrev.89.1153