Room temperature ferromagnetism in diluted magnetic semiconductor Zn1-x Crx Te nanoparticles synthesized by chemical method

Yutaka Niwayama, Hiroaki Kura, Tetsuya Sato, Migaku Takahashi, Tomoyuki Ogawa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Nanoparticles of diluted magnetic semiconductor Zn1-x Crx Te with various Cr concentrations were synthesized by a chemical method, and their magnetic properties were investigated. The synthesized nanoparticles show ferromagnetism, and the saturation magnetization increased with increasing Cr concentration in the range from x=0.002 to x=0.02. The Zn0.98 Cr0.02 Te nanoparticles showed ferromagnetism above room temperature, where the Curie temperature TC was estimated to be about 520 K. This is much higher than the reported value of TC in the Zn1-x Crx Te thin films.

Original languageEnglish
Article number202502
JournalApplied Physics Letters
Volume92
Issue number20
DOIs
Publication statusPublished - 2008

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ferromagnetism
nanoparticles
room temperature
Curie temperature
magnetic properties
saturation
magnetization
thin films

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Room temperature ferromagnetism in diluted magnetic semiconductor Zn1-x Crx Te nanoparticles synthesized by chemical method. / Niwayama, Yutaka; Kura, Hiroaki; Sato, Tetsuya; Takahashi, Migaku; Ogawa, Tomoyuki.

In: Applied Physics Letters, Vol. 92, No. 20, 202502, 2008.

Research output: Contribution to journalArticle

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AB - Nanoparticles of diluted magnetic semiconductor Zn1-x Crx Te with various Cr concentrations were synthesized by a chemical method, and their magnetic properties were investigated. The synthesized nanoparticles show ferromagnetism, and the saturation magnetization increased with increasing Cr concentration in the range from x=0.002 to x=0.02. The Zn0.98 Cr0.02 Te nanoparticles showed ferromagnetism above room temperature, where the Curie temperature TC was estimated to be about 520 K. This is much higher than the reported value of TC in the Zn1-x Crx Te thin films.

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