Experimental validation of the predicted emergent magnetism in diamagnetic cadmium sulfide (Cds) doped with boron
Name
1262658570-MIT.pdf
Size
1.21 MB
Format
Adobe PDF
Checksum (MD5)
40e3385030688ee413d1a97a5cc3779e
Author(s)
Azhar, Bilal.
Advisor(s)
Jaramillo, Rafael
Date Issued
2020
Publisher
Massachusetts Institute of Technology
Abstract
The large and persistent photoconductivity displayed by some semiconductors provides a way to control magnetism with light, through illumination-control of free carrier concentration and thereby magnetic interaction in dilute magnetic semiconductors. CdS is a wide band-gap semiconductor that displays large and persistent photoconductivity and is predicted to become magnetic when doped with certain dopants such as Boron[1]. In this work, we experimentally test the prediction of magnetic CdS:B, and lay groundwork for testing the hypothesis that magnetism can be controlled by photoconductivity. We make CdS:B nanoparticles by co-precipitation[2]. We use X-ray diffraction and plasma optical emission spectroscopy to quantify boron doping. We use magnetometry to confirm the presence of magnetic B.
Description
Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, May, 2020
Cataloged from the official PDF version of thesis.
Includes bibliographical references (pages 41-42).
Subjects
Materials Science and Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
Persistent DSpace Link
