Gapless superconductivity in overdoped Hg system: Cu-NQR study

Journal Article · Fri Nov 01 00:00:00 EST 1996 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF00768422· OSTI ID:457199

Ohsugi, Shigeki; Tsuchiya, Tetsuo; Koyama, Tadashi; Fueki, Kazuo ^[1]

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1. Science Univ. of Tokyo, Noda, Chiba (Japan)

The nuclear quadrupole resonance (NQR) investigation of Cu in the overdoped compounds HgBa{sub 2}CuO{sub y} (Hg1201) with Y=4.06 (T{sub c}=92K) and 4.11 (64K) and HgBa{sub 2}CaCu{sub 2}O{sub y} (Hg1212) with y=6.13 (T{sub c}=125K) and 6.21 (117K) was carried out in zero field. From the temperature (T) dependence of the nuclear spin-lattice relaxation time, T{sub 1}, of {sup 63}Cu, the authors discuss a cause of the T{sub c} suppression with decreasing the number of CuO{sub 2} layers.

• Sponsoring Organization: USDOE
• OSTI ID: 457199
• Report Number(s): CONF-960808-; ISSN 0022-2291; TRN: 97:012200
• Journal Information: Journal of Low Temperature Physics, Vol. 105, Issue 3-4; Conference: 3. international conference on physics and chemistry of molecular and oxide superconductors, Karlsruhe (Germany), 2-6 Aug 1996; Other Information: PBD: Nov 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MERCURY OXIDES
TRANSITION TEMPERATURE
BARIUM OXIDES
COPPER OXIDES
CALCIUM OXIDES
INHIBITION
HIGH-TC SUPERCONDUCTORS
NUCLEAR QUADRUPOLE RESONANCE
SPIN-LATTICE RELAXATION
TEMPERATURE DEPENDENCE
COPPER 63