2002 journal article

Structural, optical and magnetic properties of diluted magnetic semiconducting Zn1-xMnxO films

SOLID STATE COMMUNICATIONS, 121(6-7), 371–374.

co-author countries: United States of America 🇺🇸
author keywords: thin films; laser processing; epitaxy; X-ray scattering; optical properties
Source: Web Of Science
Added: August 6, 2018

We have investigated the structural, optical and magnetic properties of high quality epitaxial Zn1−xMnxO (diluted magnetic semiconductor) films. These films were deposited on (0001) sapphire substrate by a pulsed laser deposition technique. The nonequilibrium nature of the laser–material interaction allowed us to dope higher Mn contents (x=0.36) than allowed by thermal equilibrium limit (x∼0.13). All the films investigated here were found to be single phased and epitaxial with (0001) orientation. As the Mn concentration increases in the system, the c-axis lattice constant was found to increase linearly. Optical transmittance study showed an increase in the insulating band-gap (Eg) with increase in Mn atomic fraction x following Eg=3.270+2.760x−4.988x2eV. DC magnetization measurements showed the paramagnetic nature of the system.