HIGH-PRESSURE STUDY OF RSR2CU2.7MO0.3OY WITH R=SM, EU, GD, TB, DY, HO, ER, TM, AND YB

被引：32

作者：

XIONG, Q ^{[1
]}

XUE, YY ^{[1
]}

CHU, JW ^{[1
]}

SUN, YY ^{[1
]}

WANG, YQ ^{[1
]}

HOR, PH ^{[1
]}

CHU, CW ^{[1
]}

机构：

[1] UNIV HOUSTON, TEXAS CTR SUPERCONDUCTIV, HOUSTON, TX 77204 USA

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.47.11337

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hydrostatic-pressure effect on the superconducting transition temperature (T(c)) of the stabilized Sr-based 1:2:3 compounds RSr2Cu2.7Mo0.3Oy with R = Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb has been determined up to 16 kbar. All T(c)'s are enhanced linearly by pressure at a rather rapid rate (dT(c)/dP). A drastic jump in dT(c)/dP vs ionic radius of R occurs near Dy, i.e., dT(c)/dP approximately 0.7K/kbar for small R = Ho, Er, Tm, and Yb, and approximately 0.4 K/kbar for the larger R's = Tb, Gd, Eu, and Sm. The results suggest that Cu(1) substitution by Mo is crucial in the stabilization of the Sr-based 1:2:3 compound. Several possibilities for the dT(c)/dP step detected are advanced.

引用

页码：11337 / 11340

页数：4

共 28 条

[1] SUPERCONDUCTIVITY IN GA-BASED-1212 CUPRATES
ADACHI, S
KUBO, K
TAKANO, S
YAMAUCHI, H
[J]. PHYSICA C, 1992, 191 (1-2): : 174 - 178
[2] STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF CUPRATES IN THE YSR2CU3OY-GASR2YCU2OY SYSTEM
ADACHI, S
TAKANO, S
YAMAUCHI, H
[J]. PHYSICA C, 1992, 196 (1-2): : 125 - 128
[3] ALMASAN CC, 1992, PHYS REV LETT, V69, P689
[4] BOND VALENCES - SIMPLE STRUCTURAL MODEL FOR INORGANIC-CHEMISTRY
BROWN, ID
[J]. CHEMICAL SOCIETY REVIEWS, 1978, 7 (03) : 359 - 376
[5] Chu C. W., 1978, HIGH PRESSURE LOW TE, P359
[6] SUPERCONDUCTIVITY AT 52.5-K IN THE LANTHANUM-BARIUM-COPPER-OXIDE SYSTEM
CHU, CW
HOR, PH
MENG, RL
GAO, L
HUANG, ZJ
[J]. SCIENCE, 1987, 235 (4788) : 567 - 569
[7] HIGH-PRESSURE STUDY ON 60-K AND 90-K EUBA2CU3O7-DELTA
CHU, CW
HUANG, ZJ
MENG, RL
GAO, L
HOR, PH
[J]. PHYSICAL REVIEW B, 1988, 37 (16): : 9730 - 9733
[8] CHU CW, 1991, NATO ADV SCI I B-PHY, V286, P383
[9] CHARGE-TRANSFER AND HIGH-TEMPERATURE SUPERCONDUCTIVITY UNDER HIGH-PRESSURES
CHU, CW
HOR, PH
XUE, YY
LIN, G
MENG, RL
MATSUISHI, K
HUANG, ZJ
DIAZ, C
JEAN, YC
[J]. PHYSICA C, 1991, 185 : 701 - 702
[10] DANN TE, 1990, THESIS TAMKANG U TAI

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