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
采用比热法研究了石墨吸附氦-3 (3He)和氦-4 (4He)的第一层和第二层低温量子相图。发现了二维3He的理论上意想不到的多体凝聚。此外,3He和4He的第二层均存在相应的固相,这也是第一性原理计算未曾预料到的。该相可能是具有零点缺陷的低密度量子固体。利用低温STM首次成功地对石墨上的单层氪进行了实距成像,确定了氪的吸附位点为石墨蜂窝晶格的空心位点。成功地完成了在稀释冰箱温度下工作的LEED仪器的可行性研究。
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
2次元ヘリウム3における自己凝縮液体の研究IV
二维氦中自凝液体的研究 3 IV
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
[成瀬公暁, 佐藤大輔, 松井朋裕, 福山寛]
通讯作者:
福山寛
Self-Condensed State and Spin Fluctuations in Two-Dimensional ^3He System
二维^3He系统中的自凝聚态和自旋涨落
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[K.Naruse, D.Sato, T.Matsui, H.Fukuyama]
通讯作者:
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
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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
-
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: