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Title: Comparative study of the characteristic length scales and fields of Hg-based high-{ital T}{sub {ital c}} superconductors

Abstract

The equilibrium magnetization was studied in magnetically aligned Hg-based cuprate superconductors with a crystal structure containing one, two, and three adjacent Cu-O layers. The mixed state magnetization was measured with the magnetic field applied perpendicular to the layers, along with low field Meissner effect and normal state susceptibility studies for volume correction factors. The internally consistent analysis is used to identify systematics as the number {open_quote}{open_quote}{ital n}{close_quote}{close_quote} of Cu-O layers increases. The study reveals a linear increase in the slope of upper critical field {minus}{ital dH}{sub {ital c}2}/{ital dT} with {open_quote}{open_quote}{ital n}{close_quote}{close_quote}. Most importantly, we find a nearly constant carrier doping per Cu-O layer. This result is compared with other studies, e.g., Rietveld analysis of neutron diffractometry, and its implications are discussed. {copyright} {ital 1996 The American Physical Society.}

Authors:
 [1];  [2]; ; ;  [1];  [3]
  1. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6061 (United States)
  2. Facultad de Ingenieria, Universidad de Talca, Curico (Chile)
  3. Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory
OSTI Identifier:
383192
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 54; Journal Issue: 10; Other Information: PBD: Sep 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; HIGH-TC SUPERCONDUCTORS; MAGNETIZATION; MEISSNER-OCHSENFELD EFFECT; MERCURY OXIDES; COPPER OXIDES; BARIUM OXIDES; CALCIUM OXIDES; MIXED STATE; MAGNETIC SUSCEPTIBILITY; CRITICAL FIELD; COMPARATIVE EVALUATIONS

Citation Formats

Thompson, J R, Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200, Ossandon, J G, Christen, D K, Paranthaman, M, Specht, E D, and Kim, Y C. Comparative study of the characteristic length scales and fields of Hg-based high-{ital T}{sub {ital c}} superconductors. United States: N. p., 1996. Web. doi:10.1103/PhysRevB.54.7505.
Thompson, J R, Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200, Ossandon, J G, Christen, D K, Paranthaman, M, Specht, E D, & Kim, Y C. Comparative study of the characteristic length scales and fields of Hg-based high-{ital T}{sub {ital c}} superconductors. United States. doi:10.1103/PhysRevB.54.7505.
Thompson, J R, Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200, Ossandon, J G, Christen, D K, Paranthaman, M, Specht, E D, and Kim, Y C. Sun . "Comparative study of the characteristic length scales and fields of Hg-based high-{ital T}{sub {ital c}} superconductors". United States. doi:10.1103/PhysRevB.54.7505.
@article{osti_383192,
title = {Comparative study of the characteristic length scales and fields of Hg-based high-{ital T}{sub {ital c}} superconductors},
author = {Thompson, J R and Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200 and Ossandon, J G and Christen, D K and Paranthaman, M and Specht, E D and Kim, Y C},
abstractNote = {The equilibrium magnetization was studied in magnetically aligned Hg-based cuprate superconductors with a crystal structure containing one, two, and three adjacent Cu-O layers. The mixed state magnetization was measured with the magnetic field applied perpendicular to the layers, along with low field Meissner effect and normal state susceptibility studies for volume correction factors. The internally consistent analysis is used to identify systematics as the number {open_quote}{open_quote}{ital n}{close_quote}{close_quote} of Cu-O layers increases. The study reveals a linear increase in the slope of upper critical field {minus}{ital dH}{sub {ital c}2}/{ital dT} with {open_quote}{open_quote}{ital n}{close_quote}{close_quote}. Most importantly, we find a nearly constant carrier doping per Cu-O layer. This result is compared with other studies, e.g., Rietveld analysis of neutron diffractometry, and its implications are discussed. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.54.7505},
journal = {Physical Review, B: Condensed Matter},
number = 10,
volume = 54,
place = {United States},
year = {1996},
month = {9}
}