Abstract: Provided is an electronic element that functions as a switch or memory without using metal nanoparticle. The electronic element includes: one electrode 5A and an other electrode 5B arranged to have a nanogap therebetween; and halide ion 6 provided between the electrodes 5A and 5B; and on one of the electrodes.

Abstract: Provided is an electronic element that functions as a switch or memory without using metal nanoparticle. The electronic element comprises: one electrode 5A and other electrode 5B arranged to have a nanogap therebetween; and halide ion 6 provided between the electrodes 5A and 5B; and on one of the electrodes. When voltage between the electrodes 5A and 5B is continuously varied from a positive value to a negative value and from a negative value to a positive value, a waveform of electrical current flowing between the electrodes 5A and 5B is asymmetrical. The state of the halide ion 6 is varied in accordance with a value of the voltage that is applied between the electrodes 5A and 5B so that an information-writing-state and an information-erasing-state are maintained in accordance with a value of the electric current that flows between the electrodes 5A and 5B.