Zinc-blende-type MnAs nanoclusters embedded in GaAs

M. Yokoyama; H. Yamaguchi; T. Ogawa; M. Tanaka

doi:10.1063/1.1852214

Zinc-blende-type MnAs nanoclusters embedded in GaAs

M. Yokoyama, H. Yamaguchi, T. Ogawa, M. Tanaka

ENG - Electronic Engineering

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

108 Citations (Scopus)

Abstract

Structural, magnetic, and magneto-optical properties of GaAs:MnAs granular thin films have been investigated. Zinc-blende(ZB)-type MnAs clusters were found to be formed by annealing GaAs:MnAs at 500 °C with a ramp rate of 5 °Cmin under a nitrogen atmosphere. Magnetic and magneto-optical properties of this GaAs:MnAs granular material with ZB-type MnAs clusters were different from those of the GaAs:MnAs with NiAs-type hexagonal MnAs clusters. The ferromagnetic transition temperature TC of the GaAs:MnAs of ZB type is estimated to be 360 K, which is higher than TC (=313 K) of the NiAs-type hexagonal MnAs.

Original language	English
Article number	10D317
Journal	Journal of Applied Physics
Volume	97
Issue number	10
DOIs	https://doi.org/10.1063/1.1852214
Publication status	Published - 2005 May 15

Access to Document

10.1063/1.1852214

Cite this

@article{a81f6b209c9144c7947855598926a57f,

title = "Zinc-blende-type MnAs nanoclusters embedded in GaAs",

abstract = "Structural, magnetic, and magneto-optical properties of GaAs:MnAs granular thin films have been investigated. Zinc-blende(ZB)-type MnAs clusters were found to be formed by annealing GaAs:MnAs at 500 °C with a ramp rate of 5 °Cmin under a nitrogen atmosphere. Magnetic and magneto-optical properties of this GaAs:MnAs granular material with ZB-type MnAs clusters were different from those of the GaAs:MnAs with NiAs-type hexagonal MnAs clusters. The ferromagnetic transition temperature TC of the GaAs:MnAs of ZB type is estimated to be 360 K, which is higher than TC (=313 K) of the NiAs-type hexagonal MnAs.",

author = "M. Yokoyama and H. Yamaguchi and T. Ogawa and M. Tanaka",

note = "Funding Information: This work was partially supported by the PRESTO and SORST programs of JST, Grant-in-Aids for Scientific Research, IT program of RR 2002 from MEXT, and Toray Science Foundation.",

year = "2005",

month = may,

day = "15",

doi = "10.1063/1.1852214",

language = "English",

volume = "97",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "10",

}

TY - JOUR

T1 - Zinc-blende-type MnAs nanoclusters embedded in GaAs

AU - Yokoyama, M.

AU - Yamaguchi, H.

AU - Ogawa, T.

AU - Tanaka, M.

N1 - Funding Information: This work was partially supported by the PRESTO and SORST programs of JST, Grant-in-Aids for Scientific Research, IT program of RR 2002 from MEXT, and Toray Science Foundation.

PY - 2005/5/15

Y1 - 2005/5/15

N2 - Structural, magnetic, and magneto-optical properties of GaAs:MnAs granular thin films have been investigated. Zinc-blende(ZB)-type MnAs clusters were found to be formed by annealing GaAs:MnAs at 500 °C with a ramp rate of 5 °Cmin under a nitrogen atmosphere. Magnetic and magneto-optical properties of this GaAs:MnAs granular material with ZB-type MnAs clusters were different from those of the GaAs:MnAs with NiAs-type hexagonal MnAs clusters. The ferromagnetic transition temperature TC of the GaAs:MnAs of ZB type is estimated to be 360 K, which is higher than TC (=313 K) of the NiAs-type hexagonal MnAs.

AB - Structural, magnetic, and magneto-optical properties of GaAs:MnAs granular thin films have been investigated. Zinc-blende(ZB)-type MnAs clusters were found to be formed by annealing GaAs:MnAs at 500 °C with a ramp rate of 5 °Cmin under a nitrogen atmosphere. Magnetic and magneto-optical properties of this GaAs:MnAs granular material with ZB-type MnAs clusters were different from those of the GaAs:MnAs with NiAs-type hexagonal MnAs clusters. The ferromagnetic transition temperature TC of the GaAs:MnAs of ZB type is estimated to be 360 K, which is higher than TC (=313 K) of the NiAs-type hexagonal MnAs.

UR - http://www.scopus.com/inward/record.url?scp=21044456057&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=21044456057&partnerID=8YFLogxK

U2 - 10.1063/1.1852214

DO - 10.1063/1.1852214

M3 - Article

AN - SCOPUS:21044456057

SN - 0021-8979

VL - 97

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

M1 - 10D317

ER -

Zinc-blende-type MnAs nanoclusters embedded in GaAs

Abstract

Access to Document

Other files and links

Fingerprint

Cite this