Investigation of the magnetic properties of Li0.8Na0.2FePO4 by using the Mossbauer spectroscopy

被引：0

作者：

Ko, Byung Ug ^{[1
]}

Kouh, Taejoon ^{[1
]}

Kim, Chul Sung ^{[1
]}

Sur, Jung Chul ^{[2
]}

机构：

[1] Kookmin Univ, Dept Phys, Seoul 02707, South Korea

[2] Wonkwang Univ, Div Microelect & Display Technol, Iksan 54538, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2016年 / 69卷 / 04期

关键词：

Mossbauer spectroscopy; X-ray diffraction; LiFePO4; Cathode material; ELECTROCHEMICAL PERFORMANCE; LIFEPO4/C COMPOSITES; CATHODE MATERIALS; NA;

D O I：

10.3938/jkps.69.589

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated Li0.8Na0.2FePO4, a cathode material for secondary battery applications, by using X-ray diffractometry (XRD), vibrating sample magnetometry (VSM) and Mossbauer spectroscopy. The crystal structure is found to be orthorhombic with lattice parameters of a (0) = 10.333 , b (0) = 6.011 and c (0) = 4.700 . From the temperature dependence of both the magnetization and the Mossbauer spectra, the N,el temperature is found to be T (N) = 51 K and the spin reorientation temperature to be T (S) = 20 K. The magnetic hyperfine field (H (hf) ), electric quadrupole splitting (Delta E (Q) ) and isomer shift (delta) at 4.2 K are found to be H (hf) = 130.50 kOe, Delta E (Q) = 2.63 mm/s and delta = 1.25 mm/s.

引用

页码：589 / 592

页数：4

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