Ion-size effect on [ital T][sub [ital N]] in ([ital R][sub 1[minus][ital x]]Pr[sub [ital x]])Ba[sub 2]Cu[sub 3]O[sub 7[minus][ital y]] systems ([ital R]=Lu, Yb, Tm, Er, Y, Ho, Dy, Gd, Eu, Sm, and Nd) r

Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.49.15993· OSTI ID:7307210

Guan, W; Xu, Y; Sheen, S R; Chen, Y C; Wei, J Y.T.; Lai, H F; Wu, M K ^[1]; Ho, J C ^[2]

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1. Materials Science Center and Department of Physics, National Tsing Hua University, Hsinchu, 30043, Taiwan (Taiwan, Province of China)
2. Department of Physics and National Institute for Aviation Research, Wichita State University, Wichita, Kansas 67208 (United States)

We conducted a detailed study of the structure and magnetic properties of ([ital R][sub 1[minus][ital x]]Pr[sub [ital x]])Ba[sub 2]Cu[sub 3]O[sub 7] sintered samples, where [ital R]=Lu, Yb, Tm, Er, Y, Ho, Dy, Gd, Eu, Sm, and Nd for [ital x]=0.5--1.0. We found that the temperature dependence of the dc susceptibility follows the Curie-Weiss law in the temperature range 20--300 K and the paramagnetism of the Pr and [ital R] sublattices exist independently of one another. The antiferromagnetic ordering temperature [ital T][sub [ital N]] of Pr ions decreases monotonically with increasing [ital R] concentration (1[minus][ital x]). At a given [ital x], [ital T][sub [ital N]] is [ital R]-ion-size dependent. The slope in the [ital T][sub [ital N]] vs [ital x] curve is steeper for ions with smaller ionic radii. The observed results are interpreted in terms of the hybridization between the local states of the Pr ion and the valence-band states of the CuO[sub 2] planes.

• OSTI ID: 7307210
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 49:22; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
AMINES
AMMONIUM COMPOUNDS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CURIE-WEISS LAW
HIGH-TC SUPERCONDUCTORS
HYBRIDIZATION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NEEL TEMPERATURE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARAMAGNETISM
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
QUATERNARY COMPOUNDS
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE