Structural and magnetic properties of chemically synthesized dilute magnetic semiconducting (In0.9Fe0.1)2O3 nanoparticles

被引：0
作者：
B. P. Das
T. K. Nath
J. Panda
P. Pramanik
机构：
[1] Indian Institute of Technology,Department of Physics
[2] Indian Institute of Technology,Department of Chemistry
来源：
Journal of Materials Science: Materials in Electronics | 2015年 / 26卷
关键词：
In2O3; Dilute Magnetic Semiconductor; Field Cool; Zero Field Cool; Weak Ferromagnetism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
10 at.% Fe doped In2O3 dilute magnetic semiconducting (DMS) nanoparticles are synthesized using low temperature ‘pyrophoric reaction processes’. X-ray diffraction studies at room temperature have revealed single-phase cubic bixbyite structure of the sample. Nano size grain distribution has been observed by FESEM. The recorded temperature dependent magnetization curve exhibits concave nature in the low temperature range for both FC and ZFC conditions revealing insulating DMS like behavior. No phase transition has been noticed within the studied temperature range. Study of magnetic properties in detail confirms the weak ferromagnetic ordering along with paramagnetic behavior of the nanometric sample. From the temperature dependence of inverse magnetic susceptibility [χ−1(T)] using Curie–Weiss plot, the effective Bohr magneton (μeff) has been estimated to be ~3.715 μB/Fe ion. Observed photoluminescence spectrum of Fe doped In2O3 nanostructures mainly results from the recombination of electrons occupying oxygen vacancies or Fe3+ ions with photo-excited holes.
引用
收藏
页码：1661 / 1667
页数：6
相关论文
共 146 条
  • [1] Huang LM(2009)undefined Eur. Phys. Lett. 87 27013-undefined
  • [2] Moysés Araújo C(2006)undefined Nat. Mater. 5 298-undefined
  • [3] Ahuja R(2005)undefined Phys. Rev. Lett. 94 147209-undefined
  • [4] Philip J(2001)undefined J. Appl. Phys. 89 7284-undefined
  • [5] Kittilstved KR(2000)undefined Science 287 1019-undefined
  • [6] Norberg NS(2005)undefined Nat. Mater. 4 173-undefined
  • [7] Gamelin DR(1988)undefined J. Appl. Phys. 64 R29-undefined
  • [8] Ando A(2001)undefined Science 294 1488-undefined
  • [9] Saito H(2009)undefined Phys. Rev. B79 174406-undefined
  • [10] Jin Z(2005)undefined Appl. Phys. Lett. 86 052503-undefined
12345678910