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首页> 外文期刊>Physical review >Hysteresis in the magnetotransport of manganese-doped germanium: Evidence for carrier-mediated ferromagnetism
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Hysteresis in the magnetotransport of manganese-doped germanium: Evidence for carrier-mediated ferromagnetism

机译:锰掺杂锗的磁运输中的磁滞现象:载体介导的铁磁性的证据

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摘要

We report the fabrication of Ge:Mn ferromagnetic semiconductors by Mn-ion implantation into Ge followed by pulsed laser annealing. Benefiting from the short time annealing, the hole concentration in Mn-implanted Ge has been increased by two orders of magnitude from 10~(18) to over 10~(20) cm~(-3). Likely due to the high hole concentration, we observe that the longitudinal and Hall resistances exhibit the same hysteresis as the magnetization, which is usually considered as a sign of carrier-mediated ferromagnetism.
机译:我们报告了通过向Ge中注入Mn离子,然后进行脉冲激光退火,制造了Ge:Mn铁磁半导体。得益于短时间的退火,Mn注入的Ge中的空穴浓度从10〜(18)增加到超过10〜(20)cm〜(-3)两个数量级。可能由于高空穴浓度,我们观察到纵向和霍尔电阻表现出与磁化相同的磁滞,这通常被认为是载流子介导的铁磁性的标志。

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  • 来源
    《Physical review》 |2010年第16期|165204.1-165204.6|共6页
  • 作者单位

    Institute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden, Germany;

    rnInstitute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden, Germany;

    rnInstitute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden, Germany;

    rnInstitute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden, Germany;

    rnInstitute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden, Germany;

    rnInstitut fuer Theoretische Physik, Technische Universitaet Dresden, 01062 Dresden, Germany;

    rnINNOVAVENT GmbH, Bertha-von-Suttner-Str. 5, 37085 Goettingen, Germany;

    Institute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden, Germany;

    rnInstitute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    magnetic semiconductors; spin polarized transport in semiconductors; elemental semiconductors; magnetotransport phenomena; materials for magnetotransport;

    机译:磁性半导体半导体中的自旋极化传输;元素半导体磁传输现象;磁运输材料;

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