DISAPPEARANCE OF HALL RESISTANCE IN ONE-UNIT-CELL-THICK YBA2CU3O7-DELTA - EVIDENCE OF FREE VORTEX-ANTIVORTEX EXCITATION

被引：76

作者：

MATSUDA, Y

KOMIYAMA, S

TERASHIMA, T

SHIMURA, K

BANDO, Y

机构：

[1] UNIV TOKYO, DEPT PURE & APPL SCI, MEGURO KU, TOKYO 153, JAPAN

[2] KYOTO UNIV, INST CHEM RES, UJI, KYOTO 611, JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.69.3228

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Diagonal and Hall resistivities (rho(xx) and rho(xy)) in the normal and superconducting states are studied in one-unit-cell-thick YBa2Cu3O7-delta artificial materials. A number of transport properties in bulk YBa2Cu3O7-delta are shown to be inherent properties of the individual conducting CuO2 bilayers. Evidence of Kosterlitz-Thouless resistive transition as well as the excitation of free vortex and antivortex is presented.

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页码：3228 / 3231

页数：4

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