Studies of Two Dimensional Quantum Fluids and Solids with Low Temperature LEED and STM
Studies of Two Dimensional Quantum Fluids and Solids with Low Temperature LEED and STM
批准号:
22244042
负责人:
FUKUYAMA Hiroshi
金额:
$30.04万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (A)
财政年份:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010-04-01 至 2013-03-31
中文摘要
用比热测量方法研究了氦-3(3 He)和氦-4(4 He)在石墨表面吸附的第一层和第二层的低温量子相图。理论上意想不到的二维3 He的多体凝聚被发现。此外,在3 He和4 He的第二层中存在相称的固相被证实,这也是第一性原理计算所没有预料到的。我们首次成功地用低温STM对氪在石墨表面的单层吸附进行了实空间成像,证实了氪的吸附位置是石墨蜂窝晶格的中空位置。成功完成了在稀释制冷机温度下工作的LEED仪器开发的可行性研究。
英文摘要
Low temperature quantum phase diagrams of the first and second layers of helium-3 (3He) and helium-4 (4He) adsorbed on graphite were studied by specific heat measurements. Theoretically unexpected many-body condensation of two-dimensional 3He was discovered. In addition, the existence of a commensurate solid phase in the second layer of both 3He and 4He was confirmed, which had also been unexpected from the first-principles calculations. This phase is presumably a low-density quantum solid with zero-point defectons.We succeeded in the first real-space imaging of monolayer of Krypton adsorbed on graphite with low temperature STM and confirmed the adsorption site of Kr to be the hollow site of graphite honeycomb lattice. A feasibility study of development of a LEED instrument which works at dilution refrigerator temperatures was successfully finished.
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Hysterisis of non-Classical rotational inertia in 2D 4He
2D 4He 中非经典转动惯量的迟滞
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[川崎雅裕, 北嶋直弥, 中山和則, 久保園芳博, Y. Shibayama]
通讯作者:
Y. Shibayama
STS Observation of Dirac Fermion, Topologically appeared on Graphite
狄拉克费米子的 STS 观测,拓扑出现在石墨上
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[T. Matsui, K. Tagami, M. Tsukada, and H. Fukuyama]
通讯作者:
and H. Fukuyama
Density Variation of the Frustrated Ferromagnetism in 2D Solid H^^3e
二维固体 H^^3e 中受抑铁磁性的密度变化
DOI:
10.1007/s10909-009-9993-9
发表时间:
2010
期刊:
J. Low Temp. Phys.
影响因子:
--
作者:
[D. Sato, S. Takayoshi, K. Obata, T. Matsui, and H. Fukuyama]
通讯作者:
and H. Fukuyama
Spin-spin Relaxation Time Measurements of 2D H^^3e on Graphite
石墨上 2D H^^3e 的自旋-自旋弛豫时间测量
DOI:
10.1088/1742-6596/400/1/012066
发表时间:
2012
期刊:
J. Phys: Conf. Ser
影响因子:
--
作者:
[D. Sato, K. Naruse, T. Matsui, and H. Fukuyama]
通讯作者:
and H. Fukuyama
STS Observations of Topological Dirac Fermion on Gfaphite Surfaces
石墨烯表面拓扑狄拉克费米子的 STS 观测
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[T. Matui, K. Tagami, M. Tsukada, and H. Fukuyama]
通讯作者:
and H. Fukuyama
共 43 条
Supersolidity and the quantum spin liquid state in monolayer of helium
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批准号:18H01170
-
项目类别:Grant-in-Aid for Scientific Research (B)
-
资助金额:$10.82万
-
财政年份:2018
-
负责人:FUKUYAMA Hiroshi
-
依托单位:
Co-development of infants and parents
-
批准号:19K21006
-
项目类别:Grant-in-Aid for Research Activity Start-up
-
资助金额:$1.91万
-
财政年份:2018
-
负责人:FUKUYAMA Hiroshi
-
依托单位:
Development of a compact and continuous sub-millikelvin refrigerator
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批准号:15K13398
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项目类别:Grant-in-Aid for Challenging Exploratory Research
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资助金额:$2.5万
-
财政年份:2015
-
负责人:FUKUYAMA Hiroshi
-
依托单位:
Magnetism and Superfluidity in Charge-Neutral Fermi Particles in Two Dimensions
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批准号:15H03684
-
项目类别:Grant-in-Aid for Scientific Research (B)
-
资助金额:$8.82万
-
财政年份:2015
-
负责人:FUKUYAMA Hiroshi
-
依托单位:
Quantum physical properties in Two-Dimensional Helium
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批准号:17071002
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项目类别:Grant-in-Aid for Scientific Research on Priority Areas
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资助金额:$91.65万
-
财政年份:2005
-
负责人:FUKUYAMA Hiroshi
-
依托单位:
Physics of New Quantum Phases in Superclean Materials
-
批准号:17071001
-
项目类别:Grant-in-Aid for Scientific Research on Priority Areas
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资助金额:$47.94万
-
财政年份:2005
-
负责人:FUKUYAMA Hiroshi
-
依托单位:
Two-Dimensional Quantum Properties of Monolayer Helium Three Adsorbed on ZYX Graphite
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批准号:15340113
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$10.62万
-
财政年份:2003
-
负责人:FUKUYAMA Hiroshi
-
依托单位:
2-Dimensional Nuclear Magnetism of Adsorbed ^3He Thin Films
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批准号:05452048
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项目类别:Grant-in-Aid for General Scientific Research (B)
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资助金额:$4.74万
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财政年份:1993
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负责人:FUKUYAMA Hiroshi
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依托单位: