Magnetic property investigations on mn-doped ZnO layers on sapphire

被引：97
作者：
Mofor, AC
El-Shaer, A
Bakin, A
Waag, A
Ahlers, H
Siegner, U
Sievers, S
Albrecht, M
Schoch, W
Izyumskaya, N
Avrutin, V
Sorokin, S
Ivanov, S
Stoimenos, J
机构：
[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Semicond Technol, D-38106 Braunschweig, Germany
[2] Phys Tech Bundesanstalt, D-3300 Braunschweig, Germany
[3] Univ Ulm, Dept Semicond Phys, D-89081 Ulm, Germany
[4] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[5] Aristotle Univ Salonika, Dept Phys, Thessaloniki 54006, Greece
来源：
APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 06期
关键词：
D O I：
10.1063/1.2007864
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The need for diluted magnetic semiconductors has stimulated research on Mn-doped ZnO. However, the type of magnetic coupling (ferro/para) in ZnMnO remains an issue of debate. We have investigated the magnetic properties of Mn-doped ZnO layers grown by molecular beam epitaxy. Some samples showed a hysteresis with remnant magnetization on the order of 10(-5) emu, thus eventually suggesting ferromagnetism. We observed that the critical influence of the substrate substantially affects magnetic property measurements. This has to be taken into account in order to clearly confirm ferromagnetism. In our case, after subtraction of the substrate effect, there is no evidence of a ferromagnetic behavior for the ZnMnO samples.
引用
收藏
页数：3
相关论文
共 10 条
[1]   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
[2]   An oxide-diluted magnetic semiconductor: Mn-doped ZnO [J].
Fukumura, T ;
Jin, ZW ;
Ohtomo, A ;
Koinuma, H ;
Kawasaki, M .
APPLIED PHYSICS LETTERS, 1999, 75 (21) :3366-3368
[3]   Molecular beam epitaxy of high-quality ZnO using hydrogen peroxide as an oxidant [J].
Izyumskaya, N ;
Avrutin, V ;
Schoch, W ;
El-Shaer, A ;
Reuss, F ;
Gruber, T ;
Waag, A .
JOURNAL OF CRYSTAL GROWTH, 2004, 269 (2-4) :356-361
[4]   Ferromagnetic properties of Zn1-xMnxO epitaxial thin films [J].
Jung, SW ;
An, SJ ;
Yi, GC ;
Jung, CU ;
Lee, SI ;
Cho, S .
APPLIED PHYSICS LETTERS, 2002, 80 (24) :4561-4563
[5]   Heteroepitaxial growth behavior of Mn-doped ZnO thin films on Al2O3 (0001) by pulsed laser deposition [J].
Kim, SS ;
Moon, JH ;
Lee, BT ;
Song, OS ;
Je, JH .
JOURNAL OF APPLIED PHYSICS, 2004, 95 (02) :454-459
[6]   Ferromagnetism in Mn-implanted ZnO:Sn single crystals [J].
Norton, DP ;
Pearton, SJ ;
Hebard, AF ;
Theodoropoulou, N ;
Boatner, LA ;
Wilson, RG .
APPLIED PHYSICS LETTERS, 2003, 82 (02) :239-241
[7]   Making nonmagnetic semiconductors ferromagnetic [J].
Ohno, H .
SCIENCE, 1998, 281 (5379) :951-956
[8]   Ferromagnetism in a transition metal atom doped ZnO [J].
Sato, K ;
Katayama-Yoshida, H .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2001, 10 (1-3) :251-255
[9]   Material design for transparent ferromagnets with ZnO-based magnetic semiconductors [J].
Sato, K ;
Katayama-Yoshida, H .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2000, 39 (6B) :L555-L558
[10]   Magnetic and electric properties of transition-metal-doped ZnO films [J].
Ueda, K ;
Tabata, H ;
Kawai, T .
APPLIED PHYSICS LETTERS, 2001, 79 (07) :988-990
1