1989 Fiscal Year Final Research Report Summary

Study of the narrow band noise at low temperatures in K_<0.30> MoO_3

Research Project

Project/Area Number	62540230
Research Category	Grant-in-Aid for General Scientific Research (C)
Allocation Type	Single-year Grants
Research Field	固体物性
Research Institution	Kanazawa University (1989) Iwate University (1987-1988)
Principal Investigator	TSUTSUMI Kitomi Kanazawa University, Department of Physics, Associated Professor, 理学部, 助教授 (20143323)
Project Period (FY)	1987 – 1989
Keywords	Transition-metal chalcognide / Charge-density wave / Superconductivity / Mon-ohmic conduction
Research Abstract	I have investigated the superconductivity transition in a layered transition-metal dichalcogenide 2H-Tas_2 by means of measuring electrical resistance down to 10 mK. We observed one which is highly sensitive to the current for the measurement of the electrical resistance. In addition the current-dependent- electrical resistance is clearly observed at 1.4 and 4.2 K respectively. This current-dependency is for the first time reported on this material. The physical origin is discussed in terms of the distribution of the superconductivity transition temperature within the specimen.