Bulk Sn1-xMnxO2 magnetic semiconductors without room-temperature ferromagnetism

被引：27

作者：

Gao, K. H.

Li, Z. Q. ^{[1
]}

Liu, X. J.

Song, W.

Liu, H.

Jiang, E. Y.

机构：

[1] Tianjin Univ, Fac Sci, Inst Adv Mat Phys, Tianjin Key Lab Low Dimens Mat Phys & Preparing T, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Anal Ctr, Tianjin 300072, Peoples R China

[3] Nankai Univ, Coll Informat Tech Sci, Tianjin 300071, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2006年 / 138卷 / 04期

基金：

中国国家自然科学基金;

关键词：

diluted magnetic semiconductor; room temperature ferromagnetisin; solid state reaction;

D O I：

10.1016/j.ssc.2006.02.032

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Polycrystalline Sn1-xMnxO2 (0 <= x <= 0.05) diluted magnetic semiconductors were prepared by solid-state reaction method and their structural and magnetic properties had been investigated systematically. The three Mn-doped samples (x = 0.01, 0.03, 0.05) undergo paramagnetic to ferrornagnetic phase transitions upon cooling, but their Curie temperatures are far lower than room temperature. The magnetization cannot be attributed to any identified impurity phase. It is also found that the magnetization increases with increasing Mn doping, while the ratio of the Mn ions contributing to ferrornagnetic ordering to the total Mn ions decreases. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：175 / 178

页数：4

共 19 条

[1] CRITERION FOR FERROMAGNETISM FROM OBSERVATIONS OF MAGNETIC ISOTHERMS [J].

ARROTT, A .

PHYSICAL REVIEW, 1957, 108 (06) :1394-1396

[2] Above room temperature ferromagnetism in Mn-ion implanted Si [J].

Bolduc, M ;

Awo-Affouda, C ;

Stollenwerk, A ;

Huang, MB ;

Ramos, FG ;

Agnello, G ;

LaBella, VP .

PHYSICAL REVIEW B, 2005, 71 (03)

[3] Donor impurity band exchange in dilute ferromagnetic oxides [J].

Coey, JMD ;

Venkatesan, M ;

Fitzgerald, CB .

NATURE MATERIALS, 2005, 4 (02) :173-179

[4] Ferromagnetism in Fe-doped SnO2 thin films [J].

Coey, JMD ;

Douvalis, AP ;

Fitzgerald, CB ;

Venkatesan, M .

APPLIED PHYSICS LETTERS, 2004, 84 (08) :1332-1334

[5] Zener model description of ferromagnetism in zinc-blende magnetic semiconductors [J].

Dietl, T ;

Ohno, H ;

Matsukura, F ;

Cibert, J ;

Ferrand, D .

SCIENCE, 2000, 287 (5455) :1019-1022

[6] SnO2 doped with Mn, Fe or Co:: Room temperature dilute magnetic semiconductors [J].

Fitzgerald, CB ;

Venkatesan, M ;

Douvalis, AP ;

Huber, S ;

Coey, JMD ;

Bakas, T .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) :7390-7392

[7] Magnetic properties of Zn1-xCoxO [J].

Han, SJ ;

Lee, BY ;

Ku, JS ;

Kim, YB ;

Jeong, YH .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 :2008-2009

[8] Relationship between the structural and magnetic properties of Co-doped SnO2 nanoparticles -: art. no. 075203 [J].

Hays, J ;

Punnoose, A ;

Baldner, R ;

Engelhard, MH ;

Peloquin, J ;

Reddy, KM .

PHYSICAL REVIEW B, 2005, 72 (07)

[9] Origins of coexistence of conductivity and transparency in SnO2 -: art. no. 095501 [J].

Kiliç, Ç ;

Zunger, A .

PHYSICAL REVIEW LETTERS, 2002, 88 (09) :955011-955014

[10] Rutile-type oxide-diluted magnetic semiconductor:: Mn-doped SnO2 [J].

Kimura, H ;

Fukumura, T ;

Kawasaki, M ;

Inaba, K ;

Hasegawa, T ;

Koinuma, H .

APPLIED PHYSICS LETTERS, 2002, 80 (01) :94-96

← 1 2 →