Ion-size effect on TN in (R1-xPrx)Ba2Cu3O7-y systems (R=Lu, Yb, Tm, Er, Y, Ho, Dy, Gd, Eu, Sm, and Nd) r
- 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)
Description
We conducted a detailed study of the structure and magnetic properties of (R1-xPrx)Ba2Cu3O7 sintered samples, where R=Lu, Yb, Tm, Er, Y, Ho, Dy, Gd, Eu, Sm, and Nd for 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 R sublattices exist independently of one another. The antiferromagnetic ordering temperature TN of Pr ions decreases monotonically with increasing R concentration (1-x). At a given x, TN is R-ion-size dependent. The slope in the TN vs 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 CuO2 planes
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 49
- Journal Issue
- 22
- Journal Page Range
- p. 15993-15999.
- ISSN
- 0163-1829
- CODEN
- PRBMDO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 25061056
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANTIFERROMAGNETISM; BARIUM OXIDES; COPPER OXIDES; CURIE-WEISS LAW; HIGH-TC SUPERCONDUCTORS; HYBRIDIZATION; MAGNETIC SUSCEPTIBILITY; NEEL TEMPERATURE; PARAMAGNETISM; PRASEODYMIUM OXIDES; QUATERNARY COMPOUNDS; RARE EARTH ADDITIONS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; AMINES; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; MAGNETIC PROPERTIES; MAGNETISM; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; SUPERCONDUCTORS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE