Structural, electrical and magnetic features of Kagomé YBaCo4O7 system Cover

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Structural, electrical and magnetic features of Kagomé YBaCo4O7 system

Materials Science-Poland

Volume 34 (2016): Issue 4 (December 2016)

By: Masroor Ahmad Bhat, R. A. Zargar, Anchit Modi, M. Arora and N. K. Gaur

Open Access

|Dec 2016

Figures & Tables

XRD pattern of YBaCo4O7 with Reitveld refinement.

(a) SEM image and (b) EDX pattern of YBaCo4O7.

Raman spectrum of YBaCo4O7 in the 100 cm−1to 1600 cm−1region.

Resistance vs. temperature at 0 T and 8 T magnetic field.

lnp vs. T−1/4 (K−1/4) at 0 T and 8 T with linear fit.

M (emu ) vs. T (K) for ZFC, FC and FCW for YBaCo4O7 under 1 T magnetic field.

Isothermal magnetization moment (emu) vs. magnetic field H (Oe).

YBaCo4O7 different XRD parameters; space group - P63mc, a = 6_2874 Å, c = 10_2533 Å, volume = 660_9953 Å3, χ2 = 1_351, Rwp = 19_5, Rexp = 16_7_

Atom	Atom site multiplicity	X	Y	Z	Occupancy
Y	2b	0.66667	0.33334	0.87855	0.16667
Ba	2b	0.66667	0.33334	0.50000	0.16667
Co₁	2a	0.00000	0.00000	0.44028	0.16667
Co₂	6c	0.18987	0.85218	0.67724	0.50000
O₁	6c	0.38893	0.47100	0.71181	0.50000
O₂	2a	0.00000	0.00000	0.22156	0.16667
O₃	6c	0.12436	0.80951	0.54566	0.50000

Elemental composition details in wt_% and at_% of YBaCo4O7 obtained from EDX pattern_

Element	wt.%	at.%
O K	30.42	68.66
Co K	29.01	17.77
Y L	20.27	8.23
Ba L	20.30	5.34
Total	100.00	100.00

DOI: https://doi.org/10.1515/msp-2016-0122 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331

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Language: English

Page range: 786 - 793

Submitted on: Feb 13, 2016

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Accepted on: Oct 25, 2016

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Published on: Dec 23, 2016

Published by: Wroclaw University of Science and Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

scanning electron microscopy (SEM),

DC magnetic susceptibility

Related subjects:

Materials sciences,

Materials sciences, other,

Functional and smart materials,

Materials characterization and properties

© 2016 Masroor Ahmad Bhat, R. A. Zargar, Anchit Modi, M. Arora, N. K. Gaur, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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