Chemical manipulation of High-TC ferromagnetism in ZnO diluted magnetic semiconductors -: art. no. 147209

被引：424

作者：

Kittilstved, KR ^{[1
]}

Norberg, NS

Gamelin, DR

机构：

[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA

[2] Univ Washington, Ctr Nanotechnol, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.94.147209

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the use of targeted p- and n-type chemical perturbations to manipulate high-T-C ferromagnetism in Mn2+ZnO and Co2+ZnO in predictable and reproducible ways. We demonstrate a clear correlation between nitrogen and high-T-C ferromagnetism for Mn2+ZnO and an inverse correlation for Co2+ZnO, both as predicted by recent theoretical models. These chemical perturbations reveal rich possibilities for exerting external control over high-T-C spin ordering in diluted magnetic semiconductors.

引用

收藏

页数：4

相关论文

共 32 条

[21] Magnetic quantum dots:: Synthesis, spectroscopy, and magnetism of CO2+- and Ni2+-doped ZnO nanocrystals [J].

Schwartz, DA ;

Norberg, NS ;

Nguyen, QP ;

Parker, JM ;

Gamelin, DR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (43) :13205-13218

[22] Quantitative comparisons of dissolved hydrogen density and the electrical and optical properties of ZnO [J].

Seager, CH ;

Myers, SM .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (05) :2888-2894

[23] Ferromagnetism above room temperature in bulk and transparent thin films of Mn-doped ZnO [J].

Sharma, P ;

Gupta, A ;

Rao, KV ;

Owens, FJ ;

Sharma, R ;

Ahuja, R ;

Guillen, JMO ;

Johansson, B ;

Gehring, GA .

NATURE MATERIALS, 2003, 2 (10) :673-677

[24] CARRIER-CONCENTRATION INDUCED FERROMAGNETISM IN PBSNMNTE [J].

STORY, T ;

GALAZKA, RR ;

FRANKEL, RB ;

WOLFF, PA .

PHYSICAL REVIEW LETTERS, 1986, 56 (07) :777-779

[25] INTERSTITIAL ZINC IN ZINC OXIDE [J].

THOMAS, DG .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1957, 3 (3-4) :229-237

[26] Universal alignment of hydrogen levels in semiconductors, insulators and solutions [J].

Van de Walle, CG ;

Neugebauer, J .

NATURE, 2003, 423 (6940) :626-628

[27] The kinetics of the radiative and nonradiative processes in nanocrystalline ZnO particles upon photoexcitation [J].

van Dijken, A ;

Meulenkamp, EA ;

Vanmaekelbergh, D ;

Meijerink, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (08) :1715-1723

[28] Anisotropic ferromagnetism in substituted zinc oxide [J].

Venkatesan, M ;

Fitzgerald, CB ;

Lunney, JG ;

Coey, JMD .

PHYSICAL REVIEW LETTERS, 2004, 93 (17) :177206-1

[29] Carrier-mediated ferromagnetism in N codoped (Zn,Mn)O (10(1)over-bar-0) thin films [J].

Wang, Q ;

Sun, Q ;

Jena, P ;

Kawazoe, Y .

PHYSICAL REVIEW B, 2004, 70 (05) :052408-1

[30] Magnetic properties of ZnO-based diluted magnetic semiconductors [J].

Yoon, SW ;

Cho, SB ;

We, SC ;

Yoon, S ;

Suh, BJ ;

Song, HK ;

Shin, YJ .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :7879-7881

← 1 2 3 4 →