Title:
II-VI GROUP OR III-V GROUP BASED SINGLE CRYSTAL FERROMAGNETIC COMPOUND AND METHOD FOR ADJUSTING ITS FERROMAGNETIC CHARACTERISTICS
Document Type and Number:
WIPO Patent Application WO/2002/070793
Kind Code:
A1
Abstract:
A II-VI Group or III-V Group based single crystal ferromagnetic compound, wherein a II or III Group element is substituted with at least one transition metal selected from the group consisting of V and Cr in the cases of a II-VI Group based compound selected from the group consisting of ZnTe, ZnSe, ZnS, CdTe, CdSe and CdS and a III-V Group based compound selected from the group consisting of GaAs, InAs, InP and GaP, or is substituted with at least one transition metal selected from the group consisting of V, Cr and Mn in the case of a III-V Group based compound selected from the group consisting of GaN, AlN, InN and BN; and a method for adjusting the ferromagnetic characteristics and/or the ferromagnetism transition temperature of the ferromagnetic compound, which comprises adding another transition metal element, an n-type dopant or a p-type dopant. The II-VI Group or III-V Group based single crystal ferromagnetic compound can transmit a light and also exhibits a high ferromagnetism transition temperature.
Inventors:
YOSHIDA HIROSHI (JP)
SATOH KAZUNORI (JP)
SATOH KAZUNORI (JP)
Application Number:
PCT/JP2002/001889
Publication Date:
September 12, 2002
Filing Date:
February 28, 2002
Export Citation:
Assignee:
JAPAN SCIENCE & TECH CORP (JP)
YOSHIDA HIROSHI (JP)
SATOH KAZUNORI (JP)
YOSHIDA HIROSHI (JP)
SATOH KAZUNORI (JP)
International Classes:
C30B23/02; (IPC1-7): C30B29/48; C30B29/40
Foreign References:
| JPS5544721A | 1980-03-29 | |||
| JPS5121196A | 1976-02-20 | |||
| JP2001291714A | 2001-10-19 |
Other References:
J. KREISSL ET AL.: "Vanadium centers in ZnTe crystals. II. Electron paramagnetic resonance", PHYSICAL REVIEW B CONDENSED MATTER, vol. 53, no. 4, 15 January 1996 (1996-01-15), pages 1917 - 1926, XP002950727
TOMASZ WOJTOWICZ ET AL.: "Excitons in novel diluted magnetic semiconductor quantum structures", THIN SOLID FILMS, vol. 306, no. 2, 11 September 1997 (1997-09-11), pages 271 - 282, XP004102162
T. DIETL ET AL.: "Zener model description of ferromagnetism in zinc-blende magnetic semiconductors", SCIENCE, vol. 287, 11 February 2000 (2000-02-11), pages 1019 - 1022, XP002950728
TOMASZ WOJTOWICZ ET AL.: "Excitons in novel diluted magnetic semiconductor quantum structures", THIN SOLID FILMS, vol. 306, no. 2, 11 September 1997 (1997-09-11), pages 271 - 282, XP004102162
T. DIETL ET AL.: "Zener model description of ferromagnetism in zinc-blende magnetic semiconductors", SCIENCE, vol. 287, 11 February 2000 (2000-02-11), pages 1019 - 1022, XP002950728
Attorney, Agent or Firm:
Nishi, Yoshiyuki (26-32 Nakahara 4-chom, Isogo-ku Yokohama-shi Kanagawa, JP)
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