Hydrogen-induced ferromagnetism in ZnCoO

H. J. Lee; C. H. Park; S. Y. Jeong; K. J. Yee; C. R. Cho; M. H. Jung; D. J. Chadi

doi:10.1063/1.2171789

Hydrogen-induced ferromagnetism in ZnCoO

H. J. Lee
, C. H. Park
, S. Y. Jeong
, K. J. Yee
, C. R. Cho
, M. H. Jung
, D. J. Chadi

Division of Nanotechnology

Research output: Contribution to journal › Article › peer-review

126 Scopus citations

Abstract

We have investigated experimentally the effects of n -type impurities such as Al and H on the magnetic properties of ZnCoO. The carrier density changes slightly upon the introduction of hydrogen but increases significantly in the case of Al. A measurement of magnetic circular dichroism indicates that, of the two impurities, only H induces ferromagnetism in ZnCoO. Our experimental data suggest that, unlike Al, H plays an important role in the enhancement of ferromagnetic spin-spin interactions that goes much beyond a carrier-mediated effect.

Original language	English
Article number	062504
Journal	Applied Physics Letters
Volume	88
Issue number	6
DOIs	https://doi.org/10.1063/1.2171789
State	Published - Feb 2006

Bibliographical note

Funding Information:
This work was supported by Grant No. R14-2002-029-01000-0 from the ABRL Program, and partially financially supported by Pusan National University in the program (Post-Doc. 2005) and by the Korea Research Foundation Grant No. (KRF-2004-005-C00044).

Access to Document

10.1063/1.2171789

Cite this

@article{1fa55d2f2a27413491e95df65adf85ca,

title = "Hydrogen-induced ferromagnetism in ZnCoO",

abstract = "We have investigated experimentally the effects of n -type impurities such as Al and H on the magnetic properties of ZnCoO. The carrier density changes slightly upon the introduction of hydrogen but increases significantly in the case of Al. A measurement of magnetic circular dichroism indicates that, of the two impurities, only H induces ferromagnetism in ZnCoO. Our experimental data suggest that, unlike Al, H plays an important role in the enhancement of ferromagnetic spin-spin interactions that goes much beyond a carrier-mediated effect.",

author = "Lee, \{H. J.\} and Park, \{C. H.\} and Jeong, \{S. Y.\} and Yee, \{K. J.\} and Cho, \{C. R.\} and Jung, \{M. H.\} and Chadi, \{D. J.\}",

note = "Funding Information: This work was supported by Grant No. R14-2002-029-01000-0 from the ABRL Program, and partially financially supported by Pusan National University in the program (Post-Doc. 2005) and by the Korea Research Foundation Grant No. (KRF-2004-005-C00044).",

year = "2006",

month = feb,

doi = "10.1063/1.2171789",

language = "English",

volume = "88",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "6",

}

TY - JOUR

T1 - Hydrogen-induced ferromagnetism in ZnCoO

AU - Lee, H. J.

AU - Park, C. H.

AU - Jeong, S. Y.

AU - Yee, K. J.

AU - Cho, C. R.

AU - Jung, M. H.

AU - Chadi, D. J.

N1 - Funding Information: This work was supported by Grant No. R14-2002-029-01000-0 from the ABRL Program, and partially financially supported by Pusan National University in the program (Post-Doc. 2005) and by the Korea Research Foundation Grant No. (KRF-2004-005-C00044).

PY - 2006/2

Y1 - 2006/2

N2 - We have investigated experimentally the effects of n -type impurities such as Al and H on the magnetic properties of ZnCoO. The carrier density changes slightly upon the introduction of hydrogen but increases significantly in the case of Al. A measurement of magnetic circular dichroism indicates that, of the two impurities, only H induces ferromagnetism in ZnCoO. Our experimental data suggest that, unlike Al, H plays an important role in the enhancement of ferromagnetic spin-spin interactions that goes much beyond a carrier-mediated effect.

AB - We have investigated experimentally the effects of n -type impurities such as Al and H on the magnetic properties of ZnCoO. The carrier density changes slightly upon the introduction of hydrogen but increases significantly in the case of Al. A measurement of magnetic circular dichroism indicates that, of the two impurities, only H induces ferromagnetism in ZnCoO. Our experimental data suggest that, unlike Al, H plays an important role in the enhancement of ferromagnetic spin-spin interactions that goes much beyond a carrier-mediated effect.

UR - https://www.scopus.com/pages/publications/32444441667

U2 - 10.1063/1.2171789

DO - 10.1063/1.2171789

M3 - Article

AN - SCOPUS:32444441667

SN - 0003-6951

VL - 88

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 062504

ER -

Hydrogen-induced ferromagnetism in ZnCoO

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this