April 2, 2024

Selected Publications of Hiroshi Fukuyama
Cryogenics(materials,measurement techniques,mK temperature scale,sub-mK refrigerator)[1] “Superconducting zinc heat switch for continuous nuclear demagnetization refrigerator and sub-mKexperiments”, R. Toda, S. Takimoto, Y. Uematsu, S. Murakawa, and H. Fukuyama, arXiv:2209.08260.
[2] “A Simple Experimental Setup for Simultaneous Superfluid‑Response and Heat‑Capacity Measurements for
Helium in Confined Geometries”, J. Usami, R. Toda, S. Nakamura, T. Matsui, and H. Fukuyama, J. Low
Temp. Phys. 208, 457 (2022).
[3] “Superconducting Niobium Calorimeter for Studies of Adsorbed Helium Monolayers”, J. Usami, K. Tokeshi,T. Matsui, H. Fukuyama, J. Low Temp. Phys. 203, 1 (2021).
[4] “Performances of a Compact Shielded Superconducting Magnet for Continuous Nuclear Demagnetization
Refrigerator”, S. Takimoto, R. Toda, S. Murakawa, and H. Fukuyama, J. Low Temp. Phys. 201, 179 (2020).
[5] “The Role of Substrate Roughness in Superfluid Film Flow Velocity”, J. Usami, N. Kato, T. Matsui, and H.
Fukuyama, J. Low Temp. Phys. 196, 52 (2019).
[6] “Characterization of Pyrolytic Graphite Sheet: A New Type of Adsorption Substrate for Studies of Superfluid
Thin Films”, S. Nakamura, D. Miyafuji, R. Toda, T. Matsui, and H. Fukuyama, J. Low Temp. Phys. 192, 330(2018).
[7] “Specific heat, thermal conductivity, and magnetic susceptibility of cyanate ester resins – An alternative tocommonly used epoxy resins”, S. Nakamura, T. Fujii, S. Matsukawa, M. Katagiri, and H. Fukuyama,Cryogenics 95, 76 (2018).
[8] “Design and expected performance of a compact and continuous nuclear demagnetization refrigerator for submK applications”, R. Toda, S. Murakawa, and H. Fukuyama, J. Phys.: Conf. Ser. 969, 012093 (2018).
[9] “Low temperature transport properties of pyrolytic graphite sheet”, S. Nakamura, D. Miyafuji, T. Fujii, T.
Matsui, and H. Fukuyama, Cryogenics 86, 118 (2017).
[10] “Determination of the Mosaic Angle Distribution of Grafoil Platelets Using Continuous-Wave NMR Spectra”,
S. Takayoshi and H. Fukuyama, J. Low Temp. Phys. 158, 672 (2010).
[11] “The boiling suppression of liquid nitrogen”, S. Takayoshi, W. Kokuyama, and H. Fukuyama, Cryogenics 49,
221 (2009).
[12] “A millikelvin temperature scale in high magnetic fields based on 3He melting pressure”, Hiroshi Fukuyama,
K. Yawata, D. Ito, H. Ikegami, and H. Ishimoto, Physica B 329-333, 1560 (2003).
[13] “Characterization of ZYX graphite for studies of monolayer 3He below 1 mK”, Y. Niimi, S. Murakawa, Y.
Matsumoto, K. Honkura, H. Kambara, and H. Fukuyama, Rev. Sci. Instrum. 74, 4448 (2003).
[14] “Experimental apparatus for heat capacity measurements of 2D 3He in magnetic fields”, Y. Matsumoto,S. Murakawa, K. Honkura, C. Bäuerle, H. Kambara, and H. Fukuyama, Physica B 329-333, 146 (2003).
[15] “Electrical Resistance of Screw-fastened Thermal Joints for Ultra-low Temperatures”, T. Okamoto, H.
Fukuyama, H. Ishimoto, and S. Ogawa, Rev. Sci. Instrum. 61, 1332 (1990).
[16] “3He Melting Curve below 15 mK”, H. Fukuyama, H. Ishimoto, T. Tazaki, and S. Ogawa, Phys. Rev. B36,8921 (1987).

1[17] “Application of a Microcomputer in a Nuclear Refrigeration System with Temperature Control”, A. Sawada,
T. Mamiya, H. Fukuyama, and Y. Masuda, Cryogenics 22, 354 (1982).

Advanced experimental techniques for low-temperature surface science(ultra-low temperature STM/STS,synchrotron radiation X-ray diffraction)[18] “Simulations of Surface X-ray Diffraction from a Monolayer 4He Film Adsorbed on Graphite”, A. Kumashita,
H. Tajiri, A. Yamaguchi, J. Usami, A. Sumiyama, Y. Yamane, M. Suzuki, T. Minoguchi, Y. Sakurai, and H.
Fukuyama, JPS Conf. Proc. 38, 011004 (2023).
[19] “Structural Study of Adsorbed Helium Films: New Approach with Synchrotron Radiation X-rays”, A.
Yamaguchi, H. Tajiri, A. Kumashita, J. Usami, Y. Yamane, A. Sumiyama, M. Suzuki, T. Minoguchi, Y.
Sakurai, and H. Fukuyama, J. Low Temp. Phys. 208, 441 (2022).
[20] “Construction of a versatile ultralow temperature scanning tunneling microscope”, H. Kambara, T. Matsui, Y.
Niimi, and H. Fukuyama, Rev. Sci. Instum. 78, 073703 (2007).
[21] “STM Observations of 2D Kr and Xe adsorbed on Graphite”, T. Matsui, H. Kambara, and H. Fukuyama, J.
Low Temp. Phys. 126, 373 (2002).
[22] “Development of a new ULT Scanning Tunneling Microscope at University of Tokyo”, T. Matsui, H.
Kambara, and H. Fukuyama, J. Low Temp. Phys. 121, 803 (2000).
[23] “Studies of 2D Cryocrystals by STM Techniques”, C. Bäuerle, N. Mori, G. Kurata, and H. Fukuyama, J.
Low Temp. Phys. 113, 927 (1998).
[24] “Construction of an Ultra-low Temperature Scanning Tunneling Microscope”, H. Fukuyama, H. Tan, T.
Handa, T. Kumakura, and M. Morishita, Czech. J. of Phys. 46 Suppl. S5, 2847 (1996).

Novel quantum phases in 2D helium systems(spin liquid,quantum liquid crystal)[25] “Possible quantum liquid crystal phases of helium monolayers”, S. Nakamura, K. Matsui, T. Matsui, and H.
Fukuyama, Phys. Rev. B 94, 180501(R) (2016).
[26] “Preliminary Heat Capacity and Vapor Pressure Measurements of 2D 4He on ZYX Graphite”, S. Nakamura,K. Matsui, T. Matsui, and H. Fukuyama, J. Low Temp. Phys. 171, 711 (2013).
[27] “Observation of Self-Binding in Monolayer 3He”, D. Sato, K. Naruse, T. Matsui, and H. Fukuyama, Phys.
Rev. Lett. 109, 235306 (2012).
[28] “Density Variation of the Frustrated Ferromagnetism in 2D Solid 3He”, D. Sato, S. Takayoshi, K. Obata, T.
Matsui, and H. Fukuyama, J. Low Temp. Phys. 158, 544 (2010).
[29] “Evidence for a Self-bound Liquid State and the Commensurate–Incommensurate Coexistence in 2D 3He onGraphite”, D. Sato, D. Tsuji, S. Takayoshi, K. Obata, T. Matsui, and H. Fukuyama, J. Low Temp. Phys. 158,201 (2010).
[30] “Spin-Echo Measurements for an Anomalous Quantum Phase of 2D Helium-3”, S. Takayoshi, K. Obata, D.
Sato, T. Matsui, and H. Fukuyama, J. Phys: Conf. Ser. 150, 032104 (2009).
[31] “Torsional oscillator studies for possible supersolidity in two-dimensional 4He solid”, Y. Shibayama, H.

2

Fukuyama, and K. Shirahama, J. Phys: Conf. Ser. 150, 032096 (2009).
[32] “Nuclear Magnetism in Two-Dimensional Solid Helium Three on Graphite”, H. Fukuyama, J. Phys. Soc. Jpn.
77, 111013 (2008).
[33] “NMR Measurements on New Quantum Phases in 2D 3He”, S. Murakawa, H. Akisato, Y. Matsumoto, D. Tsuji,
K. Mukai, H. Kambara, and H. Fukuyama, AIP Conf. Proc. 850, 311 (2006).
[34] “Heat capacities of the anomalous fluid phase in two-dimensional 3He”, Y. Matsumoto, D. Tsuji, S.
Murakawa, H. Akisato, H. Kambara, and H. Fukuyama, J. Low Temp. Phys. 138, 271 (2005).
[35] “Anomalous Nuclear-spin Heat Capacities in Submonolayer Solid 3He Adsorbed on Graphite”, M. Morishita,
H. Nagatani, and H. Fukuyama, Phys. Rev. B65, 104524 (2002).
[36] “A Possible Quantum Spin-Liquid State in Antiferromagnetic 2D Solid 3He”, Hiroshi Fukuyama and M.
Morishita, Physica B280, 104 (2000).
[37] “Low Temperature Heat-Capacity Anomalies in Two-Dimensional Solid 3He”, K. Ishida, M. Morishita,
K. Yawata, and H. Fukuyama, Phys. Rev. Lett. 79, 3451 (1997).
[38] “Low Temperature Magnetization of 3He Films”, P. Schiffer, M.T. O'Keefe, D.D. Osheroff, and H. Fukuyama,J. Low Temp. Phys. 94, 489 (1994).
[39] “Magnetization of 3He on Grafoil in the Low-Temperature Limit”, P. Schiffer, M.T. O'Keefe, D.D. Osheroff,and H. Fukuyama, Phys. Rev. Lett. 71, 1403 (1993).

Nuclear magnetic orderings in bulk solid 3He(ring-exchange interaction)[40] “Nuclear Magnetic Orderings and Frustration in Bcc 3He in High Magnetic Fields”, H. Fukuyama, K.
Yawata, T. Momoi, H. Ikegami, H. Ishimoto, arXiv:cond-mat/0505177.
[41] “Direct Demagnetization Cooling of High-Density Solid 3He”, T. Okamoto, H. Fukuyama, H. Akimoto, H.
Ishimoto, and S. Ogawa, Phys. Rev. Lett. 72, 868 (1994).
[42] “Volume Dependence of the Lower Critical Field in Nuclear-Spin Ordered bcc 3He”, H. Fukuyama, T.
Okamoto, T. Fukuda, H. Akimoto, H. Ishimoto, and S. Ogawa, Phys. Rev. Lett. 67, 1274 (1991).
[43] “Magnetic Phase Diagram of Bcc 3He”, H. Fukuyama, T. Fukuda, T. Okamoto, H. Akimoto, H. Ishimoto, andS. Ogawa, Physica B169, 197 (1991).
[44] “Melting Pressure of Solid 3He near the Magnetic Tricritical Point”, T. Okamoto, H. Fukuyama, T. Fukuda,
H. Ishimoto, and S. Ogawa, Physica B165&166, 825–826 (1990).
[45] “Molar-Volume Dependence of the Nuclear Magnetism of bcc Solid 3He”, Y. Miura, N. Nishida, Y. Takano,
H. Fukuyama, H. Ishimoto, S. Ogawa, T. Hata, and T. Shigi, Phys. Rev. Lett. 58, 381 (1987).
[46] “Magnetization of hcp Solid 3He”, Y. Takano, N. Nishida, Y. Miura, H. Fukuyama, H. Ishimoto, S. Ogawa, T.
Hata, and T. Shigi, Phys. Rev. Lett. 55, 1490 (1985).
[47] “Specific Heat and Isochoric Pressure Measurements in bcc Solid 3He”, H. Fukuyama, Y. Miwa, A. Sawada,and Y. Masuda, J. Phys. Soc. Jpn. 53, 916 (1984).
[48] “Pressure Measurement of Solid 3He through the Magnetic Ordering Temperature”, T. Mamiya, A. Sawada,H. Fukuyama, Y. Hirao, K. Iwahashi, and Y. Masuda, Phys. Rev. Lett. 47, 1304 (1981).

3

Superfluid 3He and liquid 3He-4He mixtures(A-B phase transition,spin-wave, phase separation, and superfluidity in boson-fermion mixtures)
3[49] “Isochoric Pressure and He Quasiparticle Effective Mass on a 3He-4He Mixture under Pressure”, S. Yorozu,
H. Fukuyama, and H. Ishimoto, Phys. Rev. B48, 9660 (1993).
[50] “Low Temperature Studies of the NMR Frequency Shift in Superfluid 3He-A”, P. Schiffer, M.T. O'Keefe, H.
Fukuyama, and D.D. Osheroff, Phys. Rev. Lett. 69, 3096 (1992).
[51] “Strong Supercooling and Stimulation of the A-B Transition in Superfluid 3He”, P. Schiffer, M.T. O'Keefe,M.D. Hildreth, H. Fukuyama, and D.D. Osheroff, Phys. Rev. Lett. 69, 120 (1992).
[52] “Phase Separation Curve in 3He-4He Mixtures under Pressure”, S. Yorozu, M. Hiroi, H. Fukuyama, H.
Akimoto, H. Ishimoto, and S. Ogawa, Phys. Rev. B45, 12942 (1992).
[53] “Search for Superfluidity of 3He in 3He-4He Solutions”, H. Ishimoto, H. Fukuyama, N. Nishida, Y. Miura, Y.
Takano, T. Fukuda, T. Tazaki, and S. Ogawa, J. Low Temp. Phys. 77, 133 (1989).
[54] “Spin Waves in 3He-4He Solutions”, H. Ishimoto, H. Fukuyama, T. Fukuda, T. Tazaki, and S. Ogawa, Phys.
Rev. B38, 6422 (1988).
[55] “New Spin-Wave Modes in 3He-4He Solution”, H. Ishimoto, H. Fukuyama, N. Nishida, Y. Miura, Y. Takano,
T. Fukuda, T. Tazaki, and S. Ogawa, Phys. Rev. Lett. 59, 904 (1987).

2D electronic states in graphite/graphene(Landau levels,edge state)[56] “Hexagonal Nanopits with the Zigzag Edge State on Graphite Surfaces Synthesized by Hydrogen-Plasma
Etching”, T. Matsui, H. Sato, K. Kita, A. E. B. Amend, H. Sato, and H. Fukuyama, J. Phys. Chem. C 123,22665 (2019).
[57] “STM/S observations of graphene on SiC(0001) etched by H-plasma”, A. E. B. Amend, T. Matsui, H. Sato,
H. Hibino, and H. Fukuyama, Jpn. J. Appl. Phys. 58, SIIA13 (2019).
[58] “Localized Distributions of Quasi-Two-Dimensional Electronic States near Defects Artificially Created at
Graphite Surfaces in Magnetic Fields”, Y. Niimi, H. Kambara, and H. Fukuyama, Phys. Rev. Lett. 102, 026803(2009).
[59] “Real-space imaging of alternate localization and extension of quasi-two-dimensional electronic states atgraphite surfaces in magnetic fields”, Y. Niimi, H. Kambara, T. Matsui, D. Yoshioka, and H. Fukuyama, Phys.
Rev. Lett. 97, 236804 (2006).
[60] “Scanning tunneling microscopy and spectroscopy of the electronic local density of states of graphite
surfaces near monoatomic step edges”, Y. Niimi, T. Matsui, H. Kambara, K. Tagami, M. Tsukada, and H.
Fukuyama, Phys. Rev. B 73, 085421 (2006).
[61] “STS Observations of Landau Levels at Graphite Surfaces”, T. Matsui, H. Kambara, Y. Niimi, K. Tagami, M.
Tsukada, and H. Fukuyama, Phys. Rev. Lett. 94, 226403 (2005).
[62] “Scanning tunneling microscopy and spectroscopy studies of graphite edges”, Y. Niimi, T. Matsui, H.
Kambara, K. Tagami, M. Tsukada, and H. Fukuyama, Appl. Surf. Sci. 241, 43 (2005).

4

Superconductivity in van der Waals materials[63] “Negative resistance state in superconducting NbSe2 induced by surface acoustic waves”, M. Yokoi, S.
Fujiwara, T. Kawamura, T. Arakawa, K. Aoyama, H. Fukuyama, K. Kobayashi, and Y. Niimi, Sci. Adv. 6,eaba1377 (2020).
[64] “Anisotropic superconductivity in graphite intercalation compound YbC6”, N. F. Kawai and H. Fukuyama,
Physica C 468, 2403 (2008).
[65] “Temperature dependence of the impurity-induced resonant state in Zn-doped Bi2Sr2CaCu2O8+d by scanningtunneling spectroscopy”, H. Kambara, Y. Niimi, M. Ishikado, S. Uchida, and H. Fukuyama, Phys. Rev. B 76,052506 (2007).
[66] “Superconductivity in the quasi two-dimensional conductor 2H-TaSe2”, K. Yokota, G. Kurata, T. Matsui, andH. Fukuyama, Physica B284-288, 551 (2000).
[67] “Charge Density Waves and Superconductivity in 2H-TaSe2”, T. Kumakura, H. Tan, T. Handa, M. Morishita,and H. Fukuyama, Czech. J. of Phys. 46 Suppl. S5, 2611 (1996).

Patent applications[68] “ヘリウム回収装置およびヘリウム回収方法”, 福山 寛、大越慎一, 特願 2020-063432（2020 年 4 月1 日出願）.
[69] “ヘリウムコンテナ”, 福山 寛, 特願: 2021-121403（2021 年 7 月 26 日出願）.

5