Organic molecular memory

An organic molecular memory, comprising:

• a first conducive layer;
• a second conductive layer;
• and
• an organic molecular layer between the first conductive layer and the second conductive layer, the organic molecular layer having an organic molecule, the organic molecule having a linker group bonded to the first conductive layer, a π conjugated chain bonded to the linker group, and a phenyl group bonded to the π conjugated chain opposite to the linker group and facing the second conductive layer, the π conjugated chain having single bonds and double bonds or triple bonds bonded alternately, a carbon number of the π conjugated chain being larger than twelve and not larger than forty six,
• wherein the organic molecule is expressed by following formula (1) or formula (2), the linker group is expressed by L, at least one of D1 and D2 is electron-accepting group or electron-donating group, the phenyl group has substituents R0, R1, R2, R3, and R4, the substituent R0 is an electron-accepting group or an electron-donating group, 1 and n are integers equal to or larger than zero, m is an integer larger than zero, and 1+m+n is equal to or larger than two and less than six