Novel approaches to crystallize materials with narrow liquidus lines: Application to spin ladder compound La4+4nCu8+2nO14+8n (n = 2,3) and high-Tc cuprate Bi-2223

T. Watanabe, C. Sekar, H. Shibata, T. Fujii, A. Matsuda, Y. Zenitani, J. Akimitsu

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We propose two novel approaches, a modified slow cooling (MSC) method and an improved traveling solvent floating zone (I-TSFZ) method, to crystallize materials with narrow liquidus lines. The MSC method uses a flux-poor starting composition to attain sufficient supersaturation, and involves a rapid cooling from high temperature to a proper crystallization temperature to avoid the formation of unwanted phases. The I-TSFZ method uses a very slow growth velocity to grow crystals under small supersaturation, and a steep temperature gradient to precisely control the growth temperature. The MSC method and the I-TSFZ method have been successfully applied to grow spin ladder compounds La4 + 4nCu8 + 2nO14 + 8n (n = 2,3) and a high-Tc cuprate Bi2Sr2Ca2CU3O10 + δ respectively.

Original languageEnglish
Pages (from-to)316-320
Number of pages5
JournalJournal of Crystal Growth
Volume229
Issue number1
DOIs
Publication statusPublished - Jul 2 2001
Externally publishedYes

Keywords

  • A1. Optical microscopy
  • A1. X-ray diffraction
  • A2. Growth from high temperature solutions
  • A2. Travelling solvent floating zone growth
  • B1. Cuprates
  • B1. Oxides
  • B2. Oxide superconducting materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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