Magneto-optical properties of epitaxial MnxGe1-x films

被引：16

作者：

D'Orazio, F

Lucari, F

Santucci, S

Picozzi, P

Verna, A

Passacantando, M

Pinto, N

Morresi, L

Gunnella, R

Murri, R

机构：

[1] Univ Aquila, Dipartimento Fis, INFM, I-67010 Coppito, Laquila, Italy

[2] Univ Camerino, Dipartimento Fis, INFM, I-62032 Camerino, MC, Italy

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2003年 / 262卷 / 01期

关键词：

DMS; MOKE; MnGe;

D O I：

10.1016/S0304-8853(03)00041-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magneto-optical Kerr effect is used to study epitaxial MnxGe1-x/Ge (100) films grown at different substrate temperatures and Mn concentrations. The samples are magnetic at low temperature (5 K) and lose this property as the measuring temperature is raised. Negligible hysteresis is observed for the as-deposited samples. After thermal annealing, the magnetic character is enhanced as evidenced by an increase of saturation and the appearance of coercivity. Films heated in air have larger hysteresis and maintain a magnetic response up to room temperature. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：158 / 161

页数：4

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