Primary crystallization fields, growth features and properties of rare earth and barium-based cobaltates

G. L. Bychkov; S. N. Barilo; S. V. Shiryaev; D. V. Sheptyakov; S. N. Ustinovich; A. Podlesnyak; M. Baran; R. Szymczak; A. Furrer

doi:10.1016/j.jcrysgro.2004.11.117

Primary crystallization fields, growth features and properties of rare earth and barium-based cobaltates

G. L. Bychkov, S. N. Barilo, S. V. Shiryaev, D. V. Sheptyakov, S. N. Ustinovich, A. Podlesnyak, M. Baran, R. Szymczak, A. Furrer

Research output: Contribution to journal › Conference article › peer-review

15 Scopus citations

Abstract

High quality single crystals of LnBaCo₂O₅₊ _x (0<x<1) (Ln=Pr, Eu, Gd, Tb, Dy) were grown from overstoichiometric flux melt. In contrast, caused by significant flux melt creep and corrosion of alumina crucibles single crystals of these cobaltites with Y or Ln=La, Nd, Sm and Ho cannot be grown using similar temperature range and flux compositions. To solve this problem comprehensive studies of the phase primary crystallization fields in the corresponding quasi-ternary phase diagrams have been undertaken. For most of Ln₂O₃-BaO-CoO systems co-crystallization of several new phases was found. Bulk single crystals of a new cobaltate family LnBaCo₄O₇ (Ln=Eu, Gd, Y, Dy, Tb and Tm) were grown. Comparative data on magnetic susceptibility of the grown crystals are presented.

Original language	English
Pages (from-to)	e813-e818
Journal	Journal of Crystal Growth
Volume	275
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jcrysgro.2004.11.117
State	Published - Feb 15 2005
Externally published	Yes

Funding

Financial support by INTAS, grant # 01-0278, by the Swiss NSF in the frame of SCOPES, grant # 7BYPJ065732, by NATO in the frame of Collaborative Linkage grant # PST CLG 979369 and by grants BRFFI 04M-163 and BRFFI-RFFI # 04P-163 (both Belarus), and CBN # 1 # P03B # 038 # 27 (Poland) is gratefully acknowledged.

Funders	Funder number
BRFFI-RFFI	04P-163
INTAS	01-0278
Swiss NSF	7BYPJ065732
North Atlantic Treaty Organization	PST CLG 979369, BRFFI 04M-163

Keywords

A1. Phase diagrams
A2. Overstoichiometric flux growth
B1. Cobaltates
B2. Magnetic materials

Access to Document

10.1016/j.jcrysgro.2004.11.117

Cite this

@article{8ad03bcd202346b8a7fefd102c49619a,

title = "Primary crystallization fields, growth features and properties of rare earth and barium-based cobaltates",

abstract = "High quality single crystals of LnBaCo2O5+ x (02O3-BaO-CoO systems co-crystallization of several new phases was found. Bulk single crystals of a new cobaltate family LnBaCo4O7 (Ln=Eu, Gd, Y, Dy, Tb and Tm) were grown. Comparative data on magnetic susceptibility of the grown crystals are presented.",

keywords = "A1. Phase diagrams, A2. Overstoichiometric flux growth, B1. Cobaltates, B2. Magnetic materials",

author = "Bychkov, {G. L.} and Barilo, {S. N.} and Shiryaev, {S. V.} and Sheptyakov, {D. V.} and Ustinovich, {S. N.} and A. Podlesnyak and M. Baran and R. Szymczak and A. Furrer",

year = "2005",

month = feb,

day = "15",

doi = "10.1016/j.jcrysgro.2004.11.117",

language = "English",

volume = "275",

pages = "e813--e818",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Primary crystallization fields, growth features and properties of rare earth and barium-based cobaltates

AU - Bychkov, G. L.

AU - Barilo, S. N.

AU - Shiryaev, S. V.

AU - Sheptyakov, D. V.

AU - Ustinovich, S. N.

AU - Podlesnyak, A.

AU - Baran, M.

AU - Szymczak, R.

AU - Furrer, A.

PY - 2005/2/15

Y1 - 2005/2/15

N2 - High quality single crystals of LnBaCo2O5+ x (02O3-BaO-CoO systems co-crystallization of several new phases was found. Bulk single crystals of a new cobaltate family LnBaCo4O7 (Ln=Eu, Gd, Y, Dy, Tb and Tm) were grown. Comparative data on magnetic susceptibility of the grown crystals are presented.

AB - High quality single crystals of LnBaCo2O5+ x (02O3-BaO-CoO systems co-crystallization of several new phases was found. Bulk single crystals of a new cobaltate family LnBaCo4O7 (Ln=Eu, Gd, Y, Dy, Tb and Tm) were grown. Comparative data on magnetic susceptibility of the grown crystals are presented.

KW - A1. Phase diagrams

KW - A2. Overstoichiometric flux growth

KW - B1. Cobaltates

KW - B2. Magnetic materials

UR - http://www.scopus.com/inward/record.url?scp=15844404181&partnerID=8YFLogxK

U2 - 10.1016/j.jcrysgro.2004.11.117

DO - 10.1016/j.jcrysgro.2004.11.117

M3 - Conference article

AN - SCOPUS:15844404181

SN - 0022-0248

VL - 275

SP - e813-e818

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 1-2

ER -

Primary crystallization fields, growth features and properties of rare earth and barium-based cobaltates

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this