Abstract: The present disclosure provides a magnetic random-access memory, comprising: an antiferromagnetic layer; a magnetic tunnel junction disposed on the antiferromagnetic layer and comprising a ferromagnetic layer disposed corresponding to the antiferromagnetic layer; wherein the ferromagnetic layer of the magnetic tunnel junction has in-plane magnetic anisotropy, and an exchange bias field is formed between the antiferromagnetic layer and the ferromagnetic layer by an annealing process. A direction of the exchange bias field is changed by a spin orbit torque, thereby changing a direction of a magnetic moment of the ferromagnetic layer and realizing data writing. The present disclosure can improve a thermal stability of the i-MTJ and reduce a lateral dimension of the i-MTJ, thereby improving a storage density of the magnetic memory.

Abstract: The present disclosure provides a magnetic random-access memory, comprising: an antiferromagnetic layer; a magnetic tunnel junction disposed on the antiferromagnetic layer and comprising a ferromagnetic layer disposed corresponding to the antiferromagnetic layer; wherein the ferromagnetic layer of the magnetic tunnel junction has in-plane magnetic anisotropy, and an exchange bias field is formed between the antiferromagnetic layer and the ferromagnetic layer by an annealing process. A direction of the exchange bias field is changed by a spin orbit torque, thereby changing a direction of a magnetic moment of the ferromagnetic layer and realizing data writing. The present disclosure can improve a thermal stability of the i-MTJ and reduce a lateral dimension of the i-MTJ, thereby improving a storage density of the magnetic memory.

Abstract: The present invention refers to a surface ionization detector comprises an emitter, a heating rod, a collecting electrode, a reducing liner and a housing. The emitter is made of molybdenum, platinum or alloy, and in the form of cylinder or a wire spiral. The heating rod heats and supports the metal emitter. When the heating rod is heated to 300-500° C., organic amine compounds collide with the surface of the emitter, generating positive ions through surface thermal ionization and thus are detected. The lowest detecting limit value of tertiary amine by the detector in the present invention can achieve to 10?14 g/s. The response to other hydrocarbons, ketones, etc., is 5-6 orders of magnitude lower than that of organic amines. The detector can selectively detect amines, hydrazines and their derivatives, and so on. The detector can be used as a detector for a gas chromatography system adopting capillary column or packed column, or alternatively be used alone as a sensor.

Abstract: The present invention refers to a surface ionization detector comprises an emitter, a heating rod, a collecting electrode, a reducing liner and a housing. The emitter is made of molybdenum, platinum or alloy, and in the form of cylinder or a wire spiral. The heating rod heats and supports the metal emitter. When the heating rod is heated to 300-500° C., organic amine compounds collide with the surface of the emitter, generating positive ions through surface thermal ionization and thus are detected. The lowest detecting limit value of tertiary amine by the detector in the present invention can achieve to 10?14 g/s. The response to other hydrocarbons, ketones, etc., is 5-6 orders of magnitude lower than that of organic amines. The detector can selectively detect amines, hydrazines and their derivatives, and so on. The detector can be used as a detector for a gas chromatography system adopting capillary column or packed column, or alternatively be used alone as a sensor.