Abstract: A graphite-based sensor includes an undoped graphite structure that adsorbs foreign atoms and molecules. A magnetization detection device includes a substrate on which the graphite structure is adhered, a current source by which a current is applied to the substrate and the graphite structure, and a voltage measuring device coupled to the substrate. When the graphite structure adsorbs the gas molecules, the graphite structure exhibits a ferromagnetic-type behavior, and a corresponding voltage generated in the magnetic detection device changes.

Abstract: An optically-controlled memory resistor includes (1) a memory resistor having a first electrode, a second electrode, and a photo-responsive active layer disposed between the first and second electrodes and (2) a light source in cooperation with the memory resistor. The light source is configured to controllably illuminate the memory resistor for affecting a resistance state exhibited by the memory resistor. Also, a method for operating a memory resistor includes changing a resistance state of the memory resistor in response to an application of photons to the memory resistor.

Abstract: A flexible graphene-based metamaterial structure is disclosed that can operate at above liquid helium or liquid nitrogen temperatures, up to room temperature or above in applications similar to those for which a superconductor-based material structure is used. The flexible graphene-based metamaterial structure is formed from a flexible substrate, and a plurality of two-dimensional graphene blocks disposed in an array on the flexible substrate, each graphene block having a plurality of graphene sheets. The lateral dimension of the face of the graphene blocks is dependent on the temperature of operation of the flexible metamaterial structure. The flexible graphene-based metamaterial structure can be used for cloaking, with application in magnetic shielding.

Abstract: A thermistor includes a multi-layer graphite structure having a basal plane resistivity that increases with increasing temperature; a substrate upon which the graphite structure is mounted; current and voltage electrodes attached to the graphite structure; current and voltage wiring; and a voltage measuring device to measure voltage out when current is applied to the thermistor.

Abstract: An apparatus for magnetic field sensing, the apparatus comprising a graphitic material to exhibit a change in magneto-resistance (MR) in response to a sensed magnetic field, and a circuit in communication with the graphitic material, the circuit to receive an input from the graphitic material, the input being indicative of the MR change, and generate data corresponding to an angle of incidence for the magnetic field in response to the received input. Also disclosed is a method for magnetic field sensing, the method comprising positioning a graphitic material to sense a magnetic field, the graphitic material exhibiting a change in magneto-resistance (MR) in response to the magnetic field, and generating data corresponding to an angle of incidence for the magnetic field based on the MR change.

Abstract: A thermistor includes a multi-layer graphite structure having a basal plane resistivity that increases with increasing temperature; a substrate upon which the graphite structure is mounted; current and voltage electrodes attached to the graphite structure; current and voltage wiring; and a voltage measuring device to measure voltage out when current is applied to the thermistor.

Abstract: A graphite-based sensor includes an undoped graphite structure that adsorbs foreign atoms and molecules. A magnetization detection device includes a substrate on which the graphite structure is adhered, a current source by which a current is applied to the substrate and the graphite structure, and a voltage measuring device coupled to the substrate. When the graphite structure adsorbs the gas molecules, the graphite structure exhibits a ferromagnetic-type behavior, and a corresponding voltage generated in the magnetic detection device changes.

Abstract: A flow sensing system is provided. The system can include a first graphitic member and a first measurement device communicatively coupled to the first graphitic member. The first measurement device is adapted to measure a voltage along each of a plurality of orthogonal axes defined by the first graphitic member. The system can further include a display communicatively coupled to the first measurement device, the display adapted to convert the measured voltages into a signal proportionate to the fluid flow past the first graphitic member.

Abstract: A flexible graphene-based metamaterial structure is disclosed that can operate at above liquid helium or liquid nitrogen temperatures, up to room temperature or above in applications similar to those for which a superconductor-based material structure is used. The flexible graphene-based metamaterial structure is formed from a flexible substrate, and a plurality of two-dimensional graphene blocks disposed in an array on the flexible substrate, each graphene block having a plurality of graphene sheets. The lateral dimension of the face of the graphene blocks is dependent on the temperature of operation of the flexible metamaterial structure. The flexible graphene-based metamaterial structure can be used for cloaking, with application in magnetic shielding.

Abstract: A flow sensing system is provided. The system can include a first graphitic member and a first measurement device communicatively coupled to the first graphitic member. The first measurement device is adapted to measure a voltage along each of a plurality of orthogonal axes defined by the first graphitic member. The system can further include a display communicatively coupled to the first measurement device, the display adapted to convert the measured voltages into a signal proportionate to the fluid flow past the first graphitic member.