From diluted magnetic semiconductors to self-organized nanocolumns of GeMn in germanium

S. Tardif; Ing-Song Yu; T. Devillers; M. Jamet; S. Cherifi; J. Cibert; A. Barski; P. Bayle-Guillemaud; E. Bellet-Amalric

doi:10.1117/12.798296

30 August 2008 From diluted magnetic semiconductors to self-organized nanocolumns of GeMn in germanium

S. Tardif, Ing-Song Yu, T. Devillers, M. Jamet, S. Cherifi, J. Cibert, A. Barski, P. Bayle-Guillemaud, E. Bellet-Amalric

Author Affiliations +

Proceedings Volume 7036, Spintronics; 703615 (2008) https://doi.org/10.1117/12.798296
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

While achieving high Curie temperatures (above room temperature) in diluted magnetic semiconductors remains a challenge in the case of well controlled homogeneous alloys, several systems characterized by a strongly inhomogeneous incorporation of the magnetic component appear as promising. Incorporation of manganese into germanium drastically alters the growth conditions, and in certain conditions of low temperature Molecular Beam Epitaxy it leads to the formation of well organized nano-columns of a Mn-rich material, with a crystalline structure in epitaxial relationship with the Mn-poor Germanium matrix. A strong interaction between the Mn atoms in these nanocolums is demonstrated by x-ray absorption spectroscopy, giving rise to a ferromagnetic character as observed through magnetometry and x-ray magnetic circular dichroism. Most interesting, the magneto-transport characteristics of the whole structure strongly depend on the magnetic configuration of the nano-columns.

Citation Download Citation

S. Tardif, Ing-Song Yu, T. Devillers, M. Jamet, S. Cherifi, J. Cibert, A. Barski, P. Bayle-Guillemaud, and E. Bellet-Amalric "From diluted magnetic semiconductors to self-organized nanocolumns of GeMn in germanium", Proc. SPIE 7036, Spintronics, 703615 (30 August 2008); https://doi.org/10.1117/12.798296

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available