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No.1(pp.1-51)

Home > Issues > Volume 14 (2009) > No.1(pp.1-51)

Magnetic Property of Bi_sCa_1-sMnO₃: Experimental and First Principles Calculation Study

Journal of Magnetics, Volume 14, Number 1, 31 Mar 2009, Pages 1-6

Sung-Ho Na*

(Department of Physics/RCDAMP, Pusan National University), Dong-Jin Kim(Department of Physics/RCDAMP, Pusan National University)

Abstract

The magnetic properties of ${${Bi_x}{Ca_{1-x}}{MnO_3}$}$ for x = 0.12, 0.13, 0.14, 0.15, and 0.16 were examined by measuring magnetic susceptibility, resistivity and electron magnetic resonance at different temperatures. ${${Bi_x}{Ca_{1-x}}{MnO_3}$}$ showed complicated magnetic structure that varies with temperature and composition, particularly around Bi composition x. 0.15. The aim of this study was to determine how the magnetic and physical properties of ${${Bi_x}{Ca_{1-x}}{MnO_3}$}$ change in this region. In addition, first principles calculations of the magnetic phase of ${${Bi_x}{Ca_{1-x}}{MnO_3}$}$ for x = 0, 0.125, 0.25 were carried out, and the spin state, electric and magnetic characteristics are discussed.

Keywords: Bi_sCa_1-sMnO_3;susceptibility; density functional theory; electron magnetic resonance; resistivity

DOI: 10.4283/JMAG.2009.14.1.1

Full Text: PDF

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