FAR-INFRARED PHOTORESPONSE OF GRANULAR YBA2.1CU3.4O7-X

被引：12

作者：

STROM, U

CULBERTSON, JC

WOLF, SA

GAO, F

TANNER, DB

CARR, GL

机构：

[1] UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611

[2] GRUMMAN AEROSP CORP,CORP RES CTR,BETHPAGE,NY 11714

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.46.8472

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The response of a granular film of YBa2.1Cu3.4O7-x to pulsed far-infrared light has been measured at temperatures which are near the resistive onset of the film. The photoresponse at 26.0 cm-1 is interpreted due to the direct modulation of intergrain Josephson currents ("current mode") by the incident far-infrared light. The observed dependence on far-infrared power (approximately P1/2) is consistent with a superconducting energy gap which is much larger than 26.0 cm-1. There is evidence for a current mode response at 87.7 and 152 cm-1, but with a greatly reduced photoresponse magnitude. The decrease in photoresponse measured at 87.7 and 152 cm-1 is attributed to intergrain capacitive effects.

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收藏

页码：8472 / 8479

页数：8

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共 30 条

[11] REPRODUCIBLE TUNNELING DATA ON CHEMICALLY ETCHED SINGLE-CRYSTALS OF YBA2CU3O7 [J].

GURVITCH, M ;

VALLES, JM ;

CUCOLO, AM ;

DYNES, RC ;

GARNO, JP ;

SCHNEEMEYER, LF ;

WASZCZAK, JV .

PHYSICAL REVIEW LETTERS, 1989, 63 (09) :1008-1011

[12] RESISTIVE TRANSITION IN SUPERCONDUCTING FILMS [J].

HALPERIN, BI ;

NELSON, DR .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1979, 36 (5-6) :599-616

[13] EFFECT OF RANDOM DISORDER ON THE CRITICAL-BEHAVIOR OF JOSEPHSON JUNCTION ARRAYS [J].

HARRIS, DC ;

HERBERT, ST ;

STROUD, D ;

GARLAND, JC .

PHYSICAL REVIEW LETTERS, 1991, 67 (25) :3606-3609

[14] 2 SUPERCONDUCTING GAPS AND ELECTRON-PHONON COUPLING IN YBA2CU4O8 [J].

HEYEN, ET ;

CARDONA, M ;

KARPINSKI, J ;

KALDIS, E ;

RUSIECKI, S .

PHYSICAL REVIEW B, 1991, 43 (16) :12958-12975

[15] FAST NONLINEAR PHOTORESPONSE OF CURRENT BIASED THIN-FILM BI2SR2CACU2O8 TO PULSED FAR-INFRARED RADIATION [J].

HUGGARD, PG ;

SCHNEIDER, G ;

OBRIEN, T ;

LEMOINE, P ;

BLAU, W ;

PRETTL, W .

APPLIED PHYSICS LETTERS, 1991, 58 (22) :2549-2551

[16] PHOTOFLUXONIC DETECTION - A NEW MECHANISM FOR INFRARED DETECTION IN SUPERCONDUCTING THIN-FILMS [J].

KADIN, AM ;

LEUNG, M ;

SMITH, AD ;

MURDUCK, JM .

APPLIED PHYSICS LETTERS, 1990, 57 (26) :2847-2849

[17] DUALITY AND FLUXONICS IN SUPERCONDUCTING DEVICES [J].

KADIN, AM .

JOURNAL OF APPLIED PHYSICS, 1990, 68 (11) :5741-5749

[18] PHOTON-ASSISTED VORTEX DEPAIRING IN 2-DIMENSIONAL SUPERCONDUCTORS [J].

KADIN, AM ;

LEUNG, M ;

SMITH, AD .

PHYSICAL REVIEW LETTERS, 1990, 65 (25) :3193-3196

[19] IN A CLEAN HIGH-TC SUPERCONDUCTOR YOU DO NOT SEE THE GAP [J].

KAMARAS, K ;

HERR, SL ;

PORTER, CD ;

TACHE, N ;

TANNER, DB ;

ETEMAD, S ;

VENKATESAN, T ;

CHASE, E ;

INAM, A ;

WU, XD ;

HEGDE, MS ;

DUTTA, B .

PHYSICAL REVIEW LETTERS, 1990, 64 (01) :84-87

[20] MAJOR NORMAL AND SUPERCONDUCTING PARAMETERS OF HIGH-TC OXIDES [J].

KRESIN, VZ ;

WOLF, SA .

PHYSICAL REVIEW B, 1990, 41 (07) :4278-4285