IRis

Title

Possible room-temperature ferromagnetism in hydrogenated carbon nanotubes

Author(s)

Adam L. Friedman, Northeastern University
Hyunkyung Chun, Northeastern University
Yung Joon Jung, Northeastern UniversityFollow
Don Heiman, Northeastern UniversityFollow
Evan R. Glaser, Northeastern University
Latika Menon, Northeastern UniversityFollow

Abstract

We find that ferromagnetism can be induced in carbon nanotubes (CNTs) by introducing hydrogen. Multiwalled CNTs grown inside porous alumina templates contain a large density of defects resulting in significant hydrogen uptake when annealed at high temperatures. This hydrogen incorporation produces H-complex and adatom magnetism which generates a sizable ferromagnetic moment and a Curie temperature near T_C=1000  K. We studied the conditions for the incorporation of hydrogen, the temperature-dependent magnetic behavior, and the dependence of the ferromagnetism on the size of the nanotubes.

Notes

Originally published in Physical Review B 81, 115461 (2010). DOI: 10.1103/PhysRevB.81.115461

Grant information: NSF, ECCS 0551468

Keywords

ferromagnetism, carbon nanotubes (CNTs), hydrogen

Disciplines

Nanoscience and Nanotechnology | Physics

Publisher

American Physical Society

Publication Date

3-31-2010

Rights Information

©2010 The American Physical Society

Rights Holder

American Physical Society

Permanent URL

http://hdl.handle.net/2047/d20002682

Recommended Citation

Friedman, Adam L.; Chun, Hyunkyung; Jung, Yung Joon; Heiman, Don; Glaser, Evan R.; and Menon, Latika, "Possible room-temperature ferromagnetism in hydrogenated carbon nanotubes" (2010). Physics Faculty Publications. Paper 534. http://hdl.handle.net/2047/d20002682