Entries |
Document | Title | Date |
20090270262 | MAGNETOELECTRIC SUSCEPTIBILITY MEASUREMENT METHOD AND THE SYSTEM THEREOF - Disclosed herein is a method and system for measuring magnetoelectric susceptibility. The system includes a magnet supplying a DC magnetic bias to a magnetoelectric sample, an AC drive coil applying an AC magnetic field to the magnetoelectric sample, a charge amplifier amplifying an electric charge signal of the magnetoelectric sample oscillating by the AC magnetic field, and a phase sensitive detector detecting the voltage signal produced by the charge amplifier while supplying induction current to the AC drive coil. Accordingly, it is possible to provide a highly sensitive system for measuring magnetoelectric susceptibility, which is essential for research on multiferroic and magnetoelectric bulk and thin film materials at room temperature, and can also operate in the physical property measurement system (PPMS, manufactured by Quantum Design Co., Ltd.) for measurements under low temperature and high magnetic field environments. | 10-29-2009 |
20100041558 | Electromagnetic radiation detection device and manufacturing process thereof - The electromagnetic radiation detection device comprises at least one absorption membrane for absorbing said radiation. The absorption membrane is formed by an absorption layer made of tungsten nitride (W | 02-18-2010 |
20100081572 | FLUIDLESSLY COOLED SUPERCONDUCTING TRANSMISSION LINES AND REMOTE NUCLEAR POWERSYSTEMS THEREFROM - A superconducting transmission line includes a superconducting article including at least one HTS wire, a cooling system including at least in part one or more thermoelectric or thermionic coolers thermally coupled to the HTS wire. The thermoelectric coolers are powered by electricity flowing along the HTS wire. A system for generating and transporting nuclear power includes a nuclear power plant including a turbine for generating electricity, and a superconducting transmission line according to an embodiment of the invention. | 04-01-2010 |
20100173783 | METHOD FOR LOW FREQUENCY NOISE CANCELLATION IN MAGNETO-RESISTIVE MIXED SENSORS - The method for cancellation of low frequency noise in a magneto-resistive mixed sensor ( | 07-08-2010 |
20100311596 | CORE-SATURATED SUPERCONDUCTIVE FAULT CURRENT LIMITER AND CONTROL METHOD OF THE FAULT CURRENT LIMITER - A core-saturated superconductive fault current limiter and a control method of the fault current limiter. The fault current limiter includes a superconductive magnet ( | 12-09-2010 |
20110053780 | Cryogen Level Probe - A cryogen level probe, comprising a superconducting conductor ( | 03-03-2011 |
20110152102 | DEVICE AND METHOD OF MEASURING ELECTRICAL DISSIPATION IN A SUPERCONDUCTING COIL - An apparatus, system and method for measuring electrical dissipation in a coil wound with superconducting wire or tape are disclosed. The superconducting coil may include one or more superconducting wires wound together with a witness winding. The one or more superconducting wires may be electrically connected to the witness winding. The one or more superconducting wires may be shaped as a tape. The witness winding may be a tape. The superconducting coil may be wound into a flat pancake structure. The witness winding may be configured to detect a quench in the one or more superconducting wires, which may otherwise interfere with the superconductivity of the one or more superconducting wires. | 06-23-2011 |
20110152103 | METHOD FOR OPERATION OF AN ARRANGEMENT HAVING AT LEAST ONE SUPERCONDUCTING CABLE - A method is specified for operation of an arrangement having at least one superconducting cable, which is surrounded by a cryostat which consists of two metallic tubes, which are arranged concentrically with respect to one another and enclose vacuum insulation between them. The cryostat surrounds not only the cable but also a cavity for a pressurized coolant to pass through. A reservoir area, which is connected to the cryostat, for the coolant is arranged at least at one end of the cryostat and a pump is used which forces the coolant into the cryostat during operation of the arrangement. A valve is arranged at least in the supply path of the coolant from the reservoir area to the cryostat, which valve is open during operation of the arrangement, is connected to at least one unit monitoring the soundness of the cryostat and is blocked when a signal which corresponds to a fault message is present from the monitoring unit, in order to interrupt the supply of the coolant to the cryostat. | 06-23-2011 |
20120035057 | ROOM-TEMPERATURE SUPERCONDUCTIVE-LIKE DIODE DEVICE - Methods and apparatus characterized by distinct operating modes are provided. A thin graphite material defined by graphene layers is supported on a silicon substrate. The graphite material is defined by edge sites at the interface with the silicon. The graphite material is characterized by electrical superconductive-like behavior at room-temperatures while electrical current flows there through in a first direction. The graphite material is further characterized by a transition to Ohmic behavior while electrical current flows there through in a second direction opposite to the first. Devices exhibiting diode-like behavior can be formed accordingly. | 02-09-2012 |
20120077680 | NANOWIRE-BASED DETECTOR - Systems, articles, and methods are provided related to nanowire-based detectors, which can be used for light detection in, for example, single-photon detectors. In one aspect, a variety of detectors are provided, for example one including an electrically superconductive nanowire or nanowires constructed and arranged to interact with photons to produce a detectable signal. In another aspect, fabrication methods are provided, including techniques to precisely reproduce patterns in subsequently formed layers of material using a relatively small number of fabrication steps. By precisely reproducing patterns in multiple material layers, one can form electrically insulating materials and electrically conductive materials in shapes such that incoming photons are redirected toward a nearby electrically superconductive materials (e.g., electrically superconductive nanowire(s)). For example, one or more resonance structures (e.g., comprising an electrically insulating material), which can trap electromagnetic radiation within its boundaries, can be positioned proximate the nanowire(s). The resonance structure can include, at its boundaries, electrically conductive material positioned proximate the electrically superconductive nanowire such that light that would otherwise be transmitted through the sensor is redirected toward the nanowire(s) and detected. In addition, electrically conductive material can be positioned proximate the electrically superconductive nanowire (e.g. at the aperture of the resonant structure), such that light is directed by scattering from this structure into the nanowire. | 03-29-2012 |
20120258861 | TWISTED TRACK INTERFEROMETER FOR PRODUCING MAGIC STATES - A twisted track interferometer (TTI) for producing magic states is disclosed. The spin of ½-vortices may be exploited to produce magic states. The disclosed “twisted track interferometer” is a “topological twist” on the conventional Pabre-Pero interferometer adapted to topological superconductors. In the disclosed TTI, the probe particles may be Josephson vortices (JVs). JVs are estimated to be light and will tunnel more easily than Abrikosov vortices. Also, the disclosed TTI does not require multiple tunneling events. Rather, the JVs are propelled down thin insulating tracks within a 2D topological p-wave superconductor by a Magnus force generated by a tunneling supercurrent across the tracks. The JVs encounter tunneling junctions as they pass into the arms of the TTI. | 10-11-2012 |
20130143744 | SUPERCONDUCTING NANOWIRE AVALANCHE PHOTODETECTORS (SNAPS) WITH FAST RESET TIME - A superconducting nanowire avalanche photodetector (SNAP) with improved high-speed performance. An inductive element may be coupled in series with at least two parallel-coupled nanowires. The nanowires may number 5 or fewer, and may be superconducting and responsive to even a single photon. The series inductor may ensure current diverted from a photon-absorbing nanowire propagates to other nanowires and become amplified. The series inductance may be less than 10 times the nominal inductance per nanowire, and may also be larger than a minimum inductance to avoid spurious outputs in response to a photon absorption. The series inductance may be configured to achieve a desired tradeoff between SNAP reset time and spurious outputs. For example, the series inductance may be configured achieve minimum reset time or maximum bias margin, subject to user-defined constraints. By appropriately configuring the series inductance, a systematic method of designing improved SNAPs may be provided. | 06-06-2013 |
20130150245 | Number resolving superconducting nanowire photon detector via a multi-layer hardware architecture - A superconducting nanowire photon detector apparatus comprising detection, insulating, and substrate layers. The insulating layer provides electrical isolation of a plurality of individual detector elements from the interconnection network fabricated on the substrate layer except where electrical interconnection between the inputs and outputs of each detector element and the interconnection network is intended. | 06-13-2013 |
20130172195 | OPTICAL DETECTORS AND ASSOCIATED SYSTEMS AND METHODS - Optical detectors and associated systems and methods are generally described. In certain embodiments, the optical detectors comprise nanowire-based single-photon detectors, including those with advantageous geometric configurations. | 07-04-2013 |
20140315723 | Tunnel Junction Fabrication - A method for fabricating a tunnel junction includes depositing a first electrode on a substrate, depositing a wetting layer having a thickness of less than 2 nm on the first electrode, using atomic layer deposition (ALD) to deposit an oxide layer on the wetting layer, and depositing a second electrode on the oxide layer. The wetting layer and the oxide layer form a tunnel barrier, and the second electrode includes a superconductor. | 10-23-2014 |
20140329687 | SYSTEMS, DEVICES, AND METHODS FOR ANALOG PROCESSING - A system may include first and second qubits that cross one another and a first coupler having a perimeter that encompasses at least a part of the portions of the first and second qubits, the first coupler being operable to ferromagnetically or anti-ferromagnetically couple the first and the second qubits together. A multi-layered computer chip may include a first plurality N of qubits laid out in a first metal layer, a second plurality M of qubits laid out at least partially in a second metal layer that cross each of the qubits of the first plurality of qubits, and a first plurality N times M of coupling devices that at least partially encompasses an area where a respective pair of the qubits from the first and the second plurality of qubits cross each other. | 11-06-2014 |
20150332811 | MgB2-Based Superconducting Wire for a Liquid Hydrogen Level Sensor, a Liquid Hydrogen Level Sensor, and a Liquid Hydrogen Level Gauge | 11-19-2015 |