نتایج جستجو برای: hall current
تعداد نتایج: 839736 فیلتر نتایج به سال:
The Libbrecht-Hall circuit is a well-known, low-noise current driver for narrow-linewidth diode lasers. An important feature of the circuit is a current limit to protect the laser diode. As the current approaches the maximum limit, however, the noise in the laser current increases dramatically. This paper documents this behavior and explores simple circuit modifications to alleviate this issue.
At a surface between electromagnetic media the Maxwell equations are consistent with either the usual boundary conditions, or exactly one alternative: continuity of E⊥, H⊥, D‖, B‖. These alternative, classically inexplicable conditions applied to the top and bottom surfaces of an FQH layer capture exactly its unique low-frequency properties. “Magic” in science means not illusion or trickery, bu...
The phenomena based on spin-orbit interaction in heavy metal/ferromagnet/oxide structures have been investigated extensively due to their applicability to the manipulation of the magnetization direction via the in-plane current. This implies the existence of an inverse effect, in which the conductivity in such structures should depend on the magnetization orientation. In this work, we report a ...
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