Enhancement of spin correlations in ZnTe/MnTe superlattices by Cl doping

L. E. Stumpe; J. J. Rhyne; H. Kaiser; S. Lee; U. Bindley; J. K. Furdyna

doi:10.1063/1.372738

Enhancement of spin correlations in ZnTe/MnTe superlattices by Cl doping

L. E. Stumpe, J. J. Rhyne, H. Kaiser, S. Lee, U. Bindley, J. K. Furdyna

Research output: Contribution to journal › Conference article › peer-review

10 Citations (Scopus)

Abstract

The effect of adding Cl impurity on the long-range antiferromagnetic coupling in [ZnTe|MnTe] magnetic semiconductor superlattices has been investigated by neutron diffraction. Superlattices consisting of five atomic planes of ZnTe alternated with ten atomic planes of MnTe[(ZnTe)₅|(MnTe)₁₀] have been prepared by molecular-beam epitaxy both with and without Cl added to the MnTe and/or ZnTe layers during deposition. This was motivated by the fact that Cl can form either shallow or deep donor levels in II-VI semiconductors, and that such electronic states can serve to modify magnetic interlayer exchange. Unchlorinated samples showed magnetic correlation lengths of around 225 Å (≈5 bilayers) at low temperatures, and the addition of Cl increased the correlation length at 15 K by nearly a factor of 2 to approximately 450 Å.

Original language	English
Pages (from-to)	6460-6462
Number of pages	3
Journal	Journal of Applied Physics
Volume	87
Issue number	9 III
DOIs	https://doi.org/10.1063/1.372738
Publication status	Published - 2000 May 1
Externally published	Yes
Event	44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States Duration: 1999 Nov 15 → 1999 Nov 18

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.372738

Cite this

@article{6c71c31dffa345d992101988026ec4fa,

title = "Enhancement of spin correlations in ZnTe/MnTe superlattices by Cl doping",

abstract = "The effect of adding Cl impurity on the long-range antiferromagnetic coupling in [ZnTe|MnTe] magnetic semiconductor superlattices has been investigated by neutron diffraction. Superlattices consisting of five atomic planes of ZnTe alternated with ten atomic planes of MnTe[(ZnTe)5|(MnTe)10] have been prepared by molecular-beam epitaxy both with and without Cl added to the MnTe and/or ZnTe layers during deposition. This was motivated by the fact that Cl can form either shallow or deep donor levels in II-VI semiconductors, and that such electronic states can serve to modify magnetic interlayer exchange. Unchlorinated samples showed magnetic correlation lengths of around 225 {\AA} (≈5 bilayers) at low temperatures, and the addition of Cl increased the correlation length at 15 K by nearly a factor of 2 to approximately 450 {\AA}.",

author = "Stumpe, {L. E.} and Rhyne, {J. J.} and H. Kaiser and S. Lee and U. Bindley and Furdyna, {J. K.}",

year = "2000",

month = may,

day = "1",

doi = "10.1063/1.372738",

language = "English",

volume = "87",

pages = "6460--6462",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "9 III",

note = "44th Annual Conference on Magnetism and Magnetic Materials ; Conference date: 15-11-1999 Through 18-11-1999",

}

TY - JOUR

T1 - Enhancement of spin correlations in ZnTe/MnTe superlattices by Cl doping

AU - Stumpe, L. E.

AU - Rhyne, J. J.

AU - Kaiser, H.

AU - Lee, S.

AU - Bindley, U.

AU - Furdyna, J. K.

PY - 2000/5/1

Y1 - 2000/5/1

N2 - The effect of adding Cl impurity on the long-range antiferromagnetic coupling in [ZnTe|MnTe] magnetic semiconductor superlattices has been investigated by neutron diffraction. Superlattices consisting of five atomic planes of ZnTe alternated with ten atomic planes of MnTe[(ZnTe)5|(MnTe)10] have been prepared by molecular-beam epitaxy both with and without Cl added to the MnTe and/or ZnTe layers during deposition. This was motivated by the fact that Cl can form either shallow or deep donor levels in II-VI semiconductors, and that such electronic states can serve to modify magnetic interlayer exchange. Unchlorinated samples showed magnetic correlation lengths of around 225 Å (≈5 bilayers) at low temperatures, and the addition of Cl increased the correlation length at 15 K by nearly a factor of 2 to approximately 450 Å.

AB - The effect of adding Cl impurity on the long-range antiferromagnetic coupling in [ZnTe|MnTe] magnetic semiconductor superlattices has been investigated by neutron diffraction. Superlattices consisting of five atomic planes of ZnTe alternated with ten atomic planes of MnTe[(ZnTe)5|(MnTe)10] have been prepared by molecular-beam epitaxy both with and without Cl added to the MnTe and/or ZnTe layers during deposition. This was motivated by the fact that Cl can form either shallow or deep donor levels in II-VI semiconductors, and that such electronic states can serve to modify magnetic interlayer exchange. Unchlorinated samples showed magnetic correlation lengths of around 225 Å (≈5 bilayers) at low temperatures, and the addition of Cl increased the correlation length at 15 K by nearly a factor of 2 to approximately 450 Å.

UR - http://www.scopus.com/inward/record.url?scp=0000774079&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000774079&partnerID=8YFLogxK

U2 - 10.1063/1.372738

DO - 10.1063/1.372738

M3 - Conference article

AN - SCOPUS:0000774079

SN - 0021-8979

VL - 87

SP - 6460

EP - 6462

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9 III

T2 - 44th Annual Conference on Magnetism and Magnetic Materials

Y2 - 15 November 1999 through 18 November 1999

ER -

Enhancement of spin correlations in ZnTe/MnTe superlattices by Cl doping

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this