Effects of Columnar Defects on the Josephson Plasma Resonance in Bi2Sr2CaCu2Oy
Tetsuo Hanaguri, Yoshishige Tsuchiya, Song Sakamoto, Atsutaka Maeda, David G. Steel
DOI 10.1103/PhysRevLett.78.3177 · Physical Review Letters
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Abstract
Effects of columnar defects on the Josephson plasma resonance (JPR) were investigated in heavy-ion irradiated Bi2Sr2CaCu2Oy. A microwave magnetoabsorption peak caused by the JPR shifted to higher fields with increasing defect densities. The amount of the shift indicated that the interlayer coupling was enhanced even above the matching field of the columnar defects. Another absorption peak was found around the matching field, which we attribute to a novel JPR caused by the nonmonotonic field dependence of the interlayer critical current density. These results indicated that the feature of the vortex system was drastically altered even by small number of columnar defects.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 84 | Pressure not reported | unknown |
| Bi2Sr2CaCu2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 81 | Pressure not reported | unknown |
| Bi2Sr2CaCu2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 77 | Pressure not reported | unknown |
| Bi2Sr2La2CuOy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| (BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Tl2Ba2CaCu2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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