Potential of New Superconductivity Produced by Electrostatic Field and Diffusion Current in Semiconductor

Ishiguri, Shinichi

doi:10.1007/s10948-010-0972-9

Cited by 12 publications

(28 citation statements)

References 2 publications

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“…PNS has an extremely small critical current [1][2][3], and this fact prevented it from being used in practical applications. In the present superconductivity, however, the critical current is sufficiently high; therefore, we need not be overly concerned by the values of the transport currents.…”

Section: The Critical Current Density and Critical Magnetic Field Arementioning

confidence: 99%

“…That is, the method for generating the superconductivity is very simple. Many conventional superconductor studies have not yet reached this point.Moreover, compared with our previously developed superconductivity (PNS) [1][2][3], the critical currents in this study are much larger, which is important for practical applications. In the theoretical approaches, even though the mechanism of pairing, and the Bose-Einstein condensation are the same in this study as in PNS, the present paper emphasizes the mechanism of the Meissner effect in addition to formulating the critical current density.…”

mentioning

confidence: 97%

“…Approximately 8 years ago, our group demonstrated a new type of superconductivity using theoretical and experimental techniques [1][2][3]. This superconductivity is generated when a diffusion current from a current source is supplied to a doped semiconductor and an electrostatic field from a condenser cancels the Ohmic voltage of the semiconductor.…”

mentioning

confidence: 99%

“…(40) is sufficiently large; therefore, we need not to worry about the basic limitation of the transport current. PNS[1][2][3] has the same equation, Eq. (20), for the critical current density.…”

mentioning

confidence: 99%

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Theory on Another Type of Temperature-Independent Superconductivity Based on Circuit Approaches with High Critical Current Density

Ishiguri¹

2019

Preprint

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This paper proposes a method to generate a new type of superconductivity that is temperature independent with a high critical current density. This study is significant because the method does not require refrigeration, specific setups, or specific substances. That is, the method for generating the superconductivity is very simple. Many conventional superconductor studies have not yet reached this point. Moreover, compared with our previously developed superconductivity (PNS) [1-3], the critical currents in this study are much larger, which is important for practical applications. In the theoretical approaches, even though the mechanism of pairing, and the Bose–Einstein condensation are the same in this study as in PNS, the present paper emphasizes the mechanism of the Meissner effect in addition to formulating the critical current density. Further, we establish a simulation method with an equivalent circuit that reveals the superconductivity properties in terms of the transport current and the electromagnetic characteristics.The principles of the presented system are as follows:First a voltage source, a current source and a load are connected in series.Then, the voltage of the voltage source is adjusted to balance the voltage of the load.Under this condition, the balance of the two voltages provides a zero voltage between the taps of the current source and the generated current from the voltage source becomes zero because of the internal infinite resistance of the current source.As a result, the electric power generated by the two sources is zero, and therefore, the load cannot generate Joule heating because of energy conservation.However, the current from the current source (not the voltage source) is not zero; therefore, we can predict that the resistance of the load must be zero.A summary of our theory and numerical calculations is as follows. First, the strong combination of a two-electron pair is demonstrated. Then, given that two electrons combine extremely strongly because of the spin magnetic attractive force, analytical calculations of the center-of-mass motion of the Hamiltonian of the pair eventually result in a macroscopic wave function. From this macroscopic wave function, we derive a London equation using the concept of an internal toroid. The key point is that, when a sample exhibits a Meissner effect, it should release the additional energy from the internal magnetic field as a discharge current, which involves a negative voltage. Based on the inductance of this toroid, an equivalent circuit is produced. Using this circuit, we simulate this phenomenon, which results in the generation of a negative voltage and evidence of the Meissner effect, in addition to zero voltages and non-zero currents for the sample.

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Section: The Critical Current Density and Critical Magnetic Field Arementioning

confidence: 99%

mentioning

confidence: 97%

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confidence: 99%

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confidence: 99%

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Theory on Another Type of Temperature-Independent Superconductivity Based on Circuit Approaches with High Critical Current Density

Ishiguri¹

2019

Preprint

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“…Thus we need to obtain no refrigeration superconductors. Recent studies revealed that a system, wherein electrostatic fields and a diffusion current are applied to a doped semiconductor, exhibits the superconductivity generation, quite different from its conventional counterpart [9,10]. By this conduction, internal electric fields become zero because of the cancelation of the ohmic electric and the electrostatic fields.…”

Section: Introductionmentioning

confidence: 99%

New Superconductivity and Theoretical Study on a New Phenomenon of Energy Source with Assistance of Initial Experiments

Ishiguri¹

2018

Preprint

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We previously reported new superconductivity produced by an electrostatic field and a diffusion current in a semiconductor without refrigeration. In particular, the superconductivity was investigated theoretically and confirmed experimentally. Here, we determine that the derived superconducting quantum state can be reproduced in a capacitor. When circuits are formed with this new-type capacitor and diodes, a magnetic field is applied to the diodes’ depletion layer. The depletion layer is biased because of the conversion from the magnetic-field energy to electric-field energy, resulting in the diodes’ spontaneously emitting a current. Thus, the new-type capacitor is charged using no other energy source. This new phenomenon is described theoretically with assistance of initial experiments.

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Observation of New Superconductivity and Performance Improvement by Employing Cyclotron of Electron Pairs

Ishiguri

2013

Int. J. Mod. Phys. B

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A novel temperature-independent superconducting device that employs a doped semiconductor is presented in this study. The underlying theory of this superconductivity is confirmed by experimental results. Specifically, superconductivity generates a negative electric field with characteristics of both electrostatic and current-induced fields. This type of electric field creates a new paired interaction between two electrons and implies the existence of a new force. The negative electric field also exhibits the Meissner effect. Moreover, magnetic flux quanta are produced in the semiconductor. The Aharonov–Bohm effect is exhibited to create a superconducting current along the electric circuit of the superconducting system. Therefore, a load introduced to the circuit will also become superconductive. This finding has strong potential for practical applications. To solve the problem of critical current, a static magnetic field is applied. This field combines with the new electric field to yield cyclotron motion, which increases superconducting current.

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Potential of New Superconductivity Produced by Electrostatic Field and Diffusion Current in Semiconductor

Cited by 12 publications

References 2 publications

Theory on Another Type of Temperature-Independent Superconductivity Based on Circuit Approaches with High Critical Current Density

Theory on Another Type of Temperature-Independent Superconductivity Based on Circuit Approaches with High Critical Current Density

New Superconductivity and Theoretical Study on a New Phenomenon of Energy Source with Assistance of Initial Experiments

Observation of New Superconductivity and Performance Improvement by Employing Cyclotron of Electron Pairs

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