High-Temperature Ferromagnetism in Cr- and Mn-Implanted Al(sub x)Ga(sub 1-x)N

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Abstract:

The purpose of this research is to investigate the magnetic properties of Cr- and Mn implanted AlxGa1-xN along with their electrical and optical properties. The objective of the research is to determine optimal conditions for fabricating thin films of AlxGa1-xN that display ferromagnetism. Although recent advances in ion-implantation doping of group-III nitrides with Cr and Mn are making progress, efficient and controlled doping of AlxGa1-xN with Cr and Mn by the ion implantation technique remains a challenging problem. Therefore, we have performed a systematic investigation of annealing temperature effects on magnetic, electrical, and optical properties of Cr-, Mn-, and Ni-implanted AlxGa1-xN to produce a good, thermally stable, single phase, room temperature, ferromagnetic AlGaCrN, AlGaNiN, andor AlGaMnN.

Author(s):
Ryu, Mee-yi
Author Organization(s):
KANGWON NATIONAL UNIV CHUNCHEON (KOREA) DEPT OF PHYSICS
Descriptive Note:
Final rept. 24 Mar 2006-23 Sep 2007
Pagination:
0022

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AOARD-064015
Contract/Grant Number(s):
FA5209-06-P-0213
Monitor Series:
064015, AOARD
 Subject Terms
Joint Capability Areas:
JCA_1_Force Support; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_6_Net Centric; JCA_6.3.3_Spectrum Management; JCA_1.2_Force Preparation; JCA_8_Building Partnerships; JCA_1.2.3_Educating; JCA_1.2.7_Experimentation; JCA_6.2.3_Core Enterprise Services; JCA_6.3_Net Management; JCA_8.2_Shape
Modernization Areas:
Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
*FERROMAGNETISM, OPTICAL PROPERTIES, ANNEALING, MAGNETIC PROPERTIES, HIGH TEMPERATURE, ELECTRICAL PROPERTIES, ION IMPLANTATION, MOLECULAR BEAM EPITAXY, WIDE GAP SEMICONDUCTORS, MANGANESE, DOPING, CHROMIUM, CATHODOLUMINESCENCE, KOREA, FERROMAGNETIC MATERIALS
Field(s)/Group(s):
Properties of Metals and Alloys, Electricity and Magnetism
Keyword(s):
FOREIGN REPORTS
Report Date:
2007 Sep 23
Creation Date:
2008 Jan 09