Construction of a dilution refrigerator based ultra-low temperature scanning tunneling microscope
Construction of a dilution refrigerator based ultra-low temperature scanning tunneling microscope
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DOI：
10.1143/jjap.45.1909
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发表时间：
2006-03-01
期刊：
影响因子：
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通讯作者：
Fukuyama, H
中科院分区：
文献类型：
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作者：
Kambara, H;Matsui, T;Fukuyama, H
我们研制了一台基于稀释制冷机的超低温扫描隧道显微镜（ULT-STM），工作温度低至20 mK，磁场LIP至6 T，超高真空（UHV）。一次调用将在UHV室中制备的样品/尖端加载到所有STM头，保持低温和UHV条件。之后，它们需要在几个小时内冷却回基准温度。我们报告的测试测量结果的超导NbSe 2样品，以及最近的STM/STS研究油石墨样品，如观测的朗道量子化和可视化的可能的局域态的磁场。
We constructed a dilution refrigerator based ultra-low temperature scanning tunneling microscope (ULT-STM) which works at temperatures down to 20mK, in magnetic fields LIP to 6T and ill Ultrahigh vacuum (UHV). One call load samples/tips, which are prepared in a UHV chamber, to all STM head maintaining the low temperature and UHV conditions. After then they call be cooled back to the base temperature in several hours. We report results of a test measurement on a Superconducting NbSe2 sample as well as recent STM/STS studies oil graphite samples Such as observations of the Landau quantization and visualization of the possible localized states in magnetic fields.