Asset Details
Do you wish to reserve the book?
Enabling room temperature ferromagnetism in monolayer MoS2 via in situ iron-doping
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Enabling room temperature ferromagnetism in monolayer MoS2 via in situ iron-doping
Do you wish to request the book?
Enabling room temperature ferromagnetism in monolayer MoS2 via in situ iron-doping
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Enabling room temperature ferromagnetism in monolayer MoS2 via in situ iron-doping
2020
Overview
Abstract
Two-dimensional semiconductors, including transition metal dichalcogenides, are of interest in electronics and photonics but remain nonmagnetic in their intrinsic form. Previous efforts to form two-dimensional dilute magnetic semiconductors utilized extrinsic doping techniques or bulk crystal growth, detrimentally affecting uniformity, scalability, or Curie temperature. Here, we demonstrate an in situ substitutional doping of Fe atoms into MoS
2
monolayers in the chemical vapor deposition growth. The iron atoms substitute molybdenum sites in MoS
2
crystals, as confirmed by transmission electron microscopy and Raman signatures. We uncover an Fe-related spectral transition of Fe:MoS
2
monolayers that appears at 2.28 eV above the pristine bandgap and displays pronounced ferromagnetic hysteresis. The microscopic origin is further corroborated by density functional theory calculations of dipole-allowed transitions in Fe:MoS
2
. Using spatially integrating magnetization measurements and spatially resolving nitrogen-vacancy center magnetometry, we show that Fe:MoS
2
monolayers remain magnetized even at ambient conditions, manifesting ferromagnetism at room temperature.
Publisher
Nature Publishing Group
Subject
