Fluorinated h-BN As a magnetic semiconductor

Sruthi Radhakrishnan, Deya Das, Atanu Samanta, Carlos A. De Los Reyes, Liangzi Deng, Lawrence B. Alemany, Thomas K. Weldeghiorghis, Valery N. Khabashesku, Vidya Kochat, Zehua Jin, Parambath M. Sudeep, Angel A. Martí, Ching Wu Chu, Ajit Roy, Chandra Sekhar Tiwary, Abhishek K. Singh, Pulickel M. Ajayan

Research output: Contribution to journalArticlepeer-review

85 Citations (Scopus)

Abstract

We report the fluorination of electrically insulating hexagonal boron nitride (h-BN) and the subsequent modification of its electronic band structure to a wide bandgap semiconductor via introduction of defect levels. The electrophilic nature of fluorine causes changes in the charge distribution around neighboring nitrogen atoms in h-BN, leading to room temperature weak ferromagnetism. The observations are further supported by theoretical calculations considering various possible configurations of fluorinated h-BN structure and their energy states. This unconventional magnetic semiconductor material could spur studies of stable two-dimensional magnetic semiconductors. Although the high thermal and chemical stability of h-BN have found a variety of uses, this chemical functionalization approach expands its functionality to electronic and magnetic devices.

Original languageEnglish
Article numbere1700842
JournalScience Advances
Volume3
Issue number7
DOIs
Publication statusPublished - 2017 Jul 5

All Science Journal Classification (ASJC) codes

  • General

Fingerprint

Dive into the research topics of 'Fluorinated h-BN As a magnetic semiconductor'. Together they form a unique fingerprint.

Cite this