Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Tomoki Minoguchi"'
Autor:
Akira Yamaguchi, Hiroo Tajiri, Atsuki Kumashita, Jun Usami, Yu Yamane, Akihiko Sumiyama, Masaru Suzuki, Tomoki Minoguchi, Yoshiharu Sakurai, Hiroshi Fukuyama
Publikováno v:
Journal of Low Temperature Physics. 208:441-448
A few atomic layers of helium adsorbed on graphite have been attracting much attention as one of the ideal quantum systems in two dimension. Although previous reports on neutron diffraction have shown fundamental structural information in these syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e8a5080656d1ba410af2526c49882d8
https://doi.org/10.1007/s10909-021-02652-1
https://doi.org/10.1007/s10909-021-02652-1
Autor:
Atsuki Kumashita, Hiroo Tajiri, Akira Yamaguchi, Jun Usami, Akihiko Sumiyama, Yu Yamane, Masaru Suzuki, Tomoki Minoguchi, Yoshiharu Sakurai, Hiroshi Fukuyama
We carried out simulations of crystal truncation rod (CTR) scatterings, i.e., one of the surface X-ray diffraction techniques with atomic resolution, from a monolayer He film adsorbed on graphite. Our simulations reveal that the 00L rod scatterings f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbba68055b72d9c3bd7e6f058f682e9b
http://arxiv.org/abs/2210.04411
http://arxiv.org/abs/2210.04411
Publikováno v:
Physical Review B. 102
We performed quartz crystal microbalance experiments using a 5-MHz AT-cut crystal for superfluid $^{4}\mathrm{He}$ films on exfoliated graphite (Grafoil) containing up to 0.40 atom/${\mathrm{nm}}^{2} ^{3}\mathrm{He}$. We found that the mass decouplin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49d07d98af6405bca3e743bc37f42b10
https://doi.org/10.1103/physrevb.102.104104
https://doi.org/10.1103/physrevb.102.104104
Publikováno v:
Journal of Low Temperature Physics. 175:414-419
In the previous quartz crystal microbalance measurements for 4He films adsorbed on porous gold, we have observed a competition between superfluidity and slippage: In low areal densities, the resonance frequency increases gradually below T S due to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53a28ded9db0f2c0422abf31e42b4ee4
https://doi.org/10.1007/s10909-013-0963-x
https://doi.org/10.1007/s10909-013-0963-x
Publikováno v:
Journal of Low Temperature Physics. 171:259-265
Density functional theory so far has experienced pathological results in the description of the freezing of superfluid 4He, even with the use of accurate inputs, namely the density response function, χ(q), and the equation of state of the superfluid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0d0d3e85f27ebe1904c4b7d81b97a69
https://doi.org/10.1007/s10909-012-0824-z
https://doi.org/10.1007/s10909-012-0824-z
Autor:
Tomoki Minoguchi
Publikováno v:
Journal of Low Temperature Physics. 148:737-742
Activation energy for solid nucleation in overpressurized superfluid He-4 is calculated. On the basis of a model free energy of solidification of superfluid He-4, I found that both the critical shape of nucleus and the activation energy deviate from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e77eae2587f3ba7d3f9e0d70c1799d6b
https://doi.org/10.1007/s10909-007-9459-x
https://doi.org/10.1007/s10909-007-9459-x
Autor:
Frédéric Caupin, Tomoki Minoguchi
Publikováno v:
Journal of Low Temperature Physics. 138:331-336
We report a calculation of the equilibrium profile of the interface between superfluid helium 4 and its solid phase at 0 K. To calculate the excess energy of the interface, we use the density functional theory that allowed us to obtain the equilibriu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aef0fa365307f24c995794f7701c701
https://doi.org/10.1007/s10909-005-1573-z
https://doi.org/10.1007/s10909-005-1573-z
Autor:
Frédéric Caupin, Tomoki Minoguchi
Publikováno v:
Journal of Low Temperature Physics. 134:181-186
We discuss freezing of superfluid helium 4 in the frame of density functional theory. We first review the previous attempts made with different inputs for the liquid properties. We then present a new calculation based on a more recent input. Our resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c25a968e8417c0c13f67219f9c89f1c
https://doi.org/10.1023/b:jolt.0000012553.35269.68
https://doi.org/10.1023/b:jolt.0000012553.35269.68
Autor:
Tomoki Minoguchi
Publikováno v:
Journal of Low Temperature Physics. 126:627-632
Effective free energy for the solidification of the superfluid 4He under pressure is presented. Since this free energy is a function of two parameters, the density change ξ and the translational symmetry breaking parameter η, it is expected to desc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc834928a4949185c050476f1ab2a236
https://doi.org/10.1023/a:1013739806516
https://doi.org/10.1023/a:1013739806516
Autor:
Tomoki Minoguchi, Seishi Kondo
Publikováno v:
Journal of the Physical Society of Japan. 68:3774-3777
We report, for the first time, on the dynamics of the contact angle in the process of quantum nucleation on a planar cell wall. The phase boundary of nucleus is assumed to be thin. Change of the contact angle causes the nucleus to deform and decrease
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b08132cfa0c44c9d559e60c2f8192cf
https://doi.org/10.1143/jpsj.68.3774
https://doi.org/10.1143/jpsj.68.3774