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Competition between the crystal field and the exchange field in Er3+ doped NdMnO3
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10.1063/1.4754613
/content/aip/journal/apl/101/12/10.1063/1.4754613
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4754613
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of Cp/T for Nd1 − xErxMnO3 for x = 0, 0.1, 0.2, 0.33, and 0.5.

Image of FIG. 2.
FIG. 2.

(a) Phonon and electron contribution to specific heat (small red dotted line) is subtracted from experimental data (big blue dotted line) for the sample with x = 0; (b) temperature dependence of the residual magnetic contributions to the antiferromagnetic transitions for all samples; (c) temperature dependence of integrated magnetic entropy for all samples calculated from (b).

Image of FIG. 3.
FIG. 3.

(a) Low temperature specific heat fitting for sample with x = 0 (red dots: experimental data; solid black line: fitting result; green dashed dotted line: spin wave and lattice contribution; red dashed line: Schottky anomaly from ground state splitting of rare earth Nd3+ ions); (b) low temperature specific heat fitting for sample with x = 0.2 (red dots: experimental data; solid black line: fitting result; blue dashed dotted line: spin wave and lattice contribution; red dashed dotted line: Schottky anomaly from ground state splitting of rare earth Nd3+ ions; green dotted line: Schottky anomaly from ground state splitting of rare earth Er3+ ions).

Image of FIG. 4.
FIG. 4.

(a, b) Doping rate dependence of the energy gap between two splitting Nd3+ ground states (E 1) and two splitting Er3+ ground states (E 2). (c) Doping rate dependence of spin wave stiffness coefficient.

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/content/aip/journal/apl/101/12/10.1063/1.4754613
2012-09-20
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Competition between the crystal field and the exchange field in Er3+ doped NdMnO3
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4754613
10.1063/1.4754613
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