Substitution for Ba by Pr, La, and Eu in Eu(Ba1-xRx)2Cu3O7+δ solid solutions

被引：23

作者：

Xu, YW ^{[1
]}

Kramer, MJ

Dennis, KW

Wu, H

O'Connor, A

McCallum, RW

Malik, SK

Yelon, WB

机构：

[1] Minnesota State Univ, Dept Phys & Astron, Mankato, MN 56001 USA

[2] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA

[3] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[4] Univ Missouri, Res Reactor, Columbia, MO 65211 USA

来源：

PHYSICA C | 2000年 / 333卷 / 3-4期

关键词：

superconductivity; Eu-Pr-La-Ba-Cu-O; neutron diffraction; Rietveld refinement;

D O I：

10.1016/S0921-4534(00)00192-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We did a detailed study on a series of samples of Eu(Ba1-xRx)(2)Cu3O7+delta (where R = La, Pr and Eu) by X-ray diffraction, neutron diffraction, magnetic and thermopower measurements. All R3+ substitutes went to the Ba2+ site and suppress superconductivity. The suppression of superconductivity does not have a simple relation to the ionic size of the substitutes. On the other hand, the change in crystal structure from orthorhombic to tetragonal has a strong dependence on the ionic size of the substitutes. Pr on Ba site did not cause unexpected structural distortions yet suppress superconductivity at a rate faster than other rare earths. Data of thermopower measurements and neutron diffraction from our rare earth substituted Eu123 samples show that the suppression of superconductivity by Pr on Ba site is electronic, not magnetic in nature. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：195 / 206

页数：12

共 25 条

[1] ROLE OF BA-SITE PR IN QUENCHING SUPERCONDUCTIVITY OF Y1-YPRYBA2CU3OX AND RELATED MATERIALS [J].

BLACKSTEAD, HA ;

DOW, JD .

PHYSICAL REVIEW B, 1995, 51 (17) :11830-11837

[2] Observation of superconductivity in PrBa2Cu3O7 [J].

Blackstead, HA ;

Dow, JD ;

Chrisey, DB ;

Horwitz, JS ;

Black, MA ;

McGinn, PJ ;

Klunzinger, AE ;

Pulling, DB .

PHYSICAL REVIEW B, 1996, 54 (09) :6122-6125

[3] Soft X-ray absorption study of (Nd1.05-xPrx)Ba1.95Cu3O7 using synchrotron radiation [J].

Chen, JM ;

Liu, RS ;

Kramer, MJ ;

Dennis, KW ;

McCallum, RW .

CHEMICAL PHYSICS LETTERS, 1998, 294 (1-3) :209-216

[4] Soft-x-ray absorption spectroscopy of Nd1+xBa2-xCu3O7+delta (x=0-0.6) [J].

Chen, JM ;

Liu, RG ;

Chung, SC ;

Liu, RS ;

Kramer, MJ ;

Dennis, KW ;

McCallum, RW .

PHYSICAL REVIEW B, 1997, 55 (05) :3186-3191

[5] Scaling of transition temperature and CuO2 plane buckling in a high-temperature superconductor [J].

Chmaissem, O ;

Jorgensen, JD ;

Short, S ;

Knizhnik, A ;

Eckstein, Y ;

Shaked, H .

NATURE, 1999, 397 (6714) :45-48

[6] Structure, superconductivity and thermopower of Nd1-xPrxSrBaCu3O7 [J].

Das, A ;

Suryanarayanan, R ;

Zelenay, I ;

Dabrowski, B .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 273 (3-4) :301-308

[7] UNUSUAL ELECTRONIC-STRUCTURE OF PRBA2CU3O7 [J].

FEHRENBACHER, R ;

RICE, TM .

PHYSICAL REVIEW LETTERS, 1993, 70 (22) :3471-3474

[8] A SYSTEMATIC LOW-TEMPERATURE NEUTRON-DIFFRACTION STUDY OF THE RBA2CU3OX (R = YTTRIUM AND RARE-EARTHS, X = 6 AND 7) COMPOUNDS [J].

GUILLAUME, M ;

ALLENSPACH, P ;

HENGGELER, W ;

MESOT, J ;

ROESSLI, B ;

STAUB, U ;

FISCHER, P ;

FURRER, A ;

TROUNOV, V .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (39) :7963-7976

[9] STRUCTURAL-PROPERTIES OF OXYGEN-DEFICIENT YBA2CU3O7-DELTA [J].

JORGENSEN, JD ;

VEAL, BW ;

PAULIKAS, AP ;

NOWICKI, LJ ;

CRABTREE, GW ;

CLAUS, H ;

KWOK, WK .

PHYSICAL REVIEW B, 1990, 41 (04) :1863-1877

[10] The effect of Pr substituted in Eu1-xPrxBa2Cu3O7-δ and EuBa2-xPrxCu3O7-δ perovskites [J].

Klencsar, Z ;

Kuzmann, E ;

Homonnay, Z ;

Vertes, A ;

Vad, K ;

Bankuti, J ;

Racz, T ;

Bodog, M ;

Kotsis, I .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1998, 304 (1-2) :124-132

← 1 2 3 →