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Hideki Yayama Last modified date:2018.06.14



Graduate School


E-Mail
Homepage
http://www.artsci.kyushu-u.ac.jp/~yayama/yayama/
Phone
092-802-6004
Fax
092-802-6004
Academic Degree
Doctor of Engineering
Country of degree conferring institution (Overseas)
No
Field of Specialization
Low Temperature Physics, Cryogenics
Total Priod of education and research career in the foreign country
00years06months
Outline Activities
Research
1. Low dimensional electron system on liquid helium
2. Novel cryogen free refrigerator in cryogenic temperatures

Education
1. Low temperature Physics
2. Electromagnetism
3. Thermodynamics
4. Elemental mechanics
5. Elemental course of physical experiments
Research
Research Interests
  • Electric phenomenon in superfluid helium
    keyword : Superfluid Helium
    2015.04~2016.03.
  • Low dimensional electron system on liquid helium
    keyword : low temperature, liquid helium, low dimensional electrons
    2007.04~2015.03We make low dimensional electron system on liquid helium surface and investigate the electrical property. Especially, we are searching the Wigner crystallization of polarons when the electrons are situated on the helium film..
  • Development of novel cryogenic refrigerators
    keyword : dilution refrigerator, liquid helium, GM refrigerator, pulse-tube refrigerator, magnetic refrigerator
    2007.04~2015.03We develop an liquid helium free dilution refrigerator which posesses characters of easy to use and low running cost. Especially, we are realizing the coexistence of superconducting magnet and the dilution refrigerator..
Current and Past Project
  • Electrical property of low dimensional electron system on liquid helium
  • Development of heat switch for cryogen-free continuously operating magnetic refrigerator
  • Development of Liquid Helium Free Dilution Refrigerator and establishment of company to sell that.
Academic Activities
Books
1. Production and measurement of low and ultra-low temperatures.
2. Textbook for fundamental course of experimental physics.
Papers
1. Hideki Yayama, Yosuke Yatsuyama, Mobility of 2D Electrons on Pure 4He and on 3He–4He Dilute Solution, J. Low Temp. Phys., 175, 401-406, 2014.03, The mobility of 2D electrons on pure 4He and on 0.5 % solution of 3He in 4He was investigated for different electron densities in the temperature range 0.12 to 1.3 K. The electrons in the same electron density show the same transition temperature from liquid state to Wigner crystal state in both pure 4He and in the solution. In the high temperature range where the gas-scattering is dominant, the electrons show a smaller mobility in the solution than in the pure 4He due to the electron collision with 3He gas atoms which have a higher vapor pressure. In the middle temperature range where the ripplon-scattering is dominant, the mobility in the solution is smaller than in 4He. This is explained by a smaller surface tension caused by 3He atoms collected at the surface. In the low temperature range where electrons are in the Wigner crystal state, the mobility gradually increases with decreasing temperature in the solution, while it stays almost constant in the pure 4He. The mobility increase is more pronounced in the low electron density. The results are qualitatively in agreement with the existing theory which includes the bulk 3He quasiparticle reflection from surface dimples and the effect of the surface layer of 3He atoms..
2. Shuji Yamanaka, Toshikazu Arai, Anju Sawada, Akira Fukuda, Hideki Yayama, Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface , Low Temp. Phys., Vol.39, 10, pp.842-850, 2013.10.
3. Essam Ghamry, Ali G. Hafez, Kiyohumi Yumoto, Hideki Yayama, Effect of SC on frequency content of geomagnetic data using DWT Application: SC automatic detection, Earth Planets Space, 10.5047, 65, 1007-1015, 2013.10, In this paper, a study is made to determine the effect of sudden commencement (SC) on the power spectrum of geomagnetic data using
multiresolution analysis (MRA) of the discrete wavelet transform (DWT). The results of this study provides a guide to develop a new technique to automatically detect the SC because it could be an indicator of the onset of a geomagnetic storm. This new technique divides the original time series into different frequency sub-bands using the MRA of the DWT. Then it detects the change in a certain sub-band which shows a large change due to the SC. The geomagnetic records used in this study were 3-s resolution data collected from the Circum-Pan Pacific Magnetometer Network (CPMN). Using such high-resolution data enables us to minimize the detection error and the processing time to make a decision. The proposed algorithm is tested on one sample every three seconds of data sets collected from the CPMN. The maximum standard deviation of the algorithm detection times is observed to be fifty four seconds of the corresponding arrival times as determined by the National Geophysical Data Center (NGDC)..
4. Shuji Yamanaka, Toshikazu Arai, Anju Sawada, Akira Fukuda, Hideki Yayama, Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface, Fiz. Nizk. Temp., 39, 10, 1086-1095, pp. 1086-1095, 2013.10.
5. Yutaro Nagano, Nobutaka Araoka, Akihiro Mitsuda, Hideki Yayama, Hirofumi Wada, Masaki Ichihara, Masahiko Isobe, Yutaka Ueda, Charge Density Wave and Superconductivity
of RPt2Si2 (R = Y, La, Nd, and Lu), J. Phys. Soc. Jpn., 064715-1-064715-5, 2013.06.
6. Ali G. Hafez, Essam Ghamry, Hideki Yayama, Kiyohumi Yumoto, Systematic examination of the Geomagnetic Storm Sudden Commencement using multi resolution analysis, Adv. Space Res., http://dx.doi.org/10.1016/j.asr.2012.07.035, 51, 39-49, 2013.01.
7. Ali G. Hafez, Essam Ghamry, Hideki Yayama and Kiyohumi Yumoto, Un-decimated discrete wavelet transform based algorithm for extraction of geomagnetic storm sudden commencement onset of high resolution records, Comp. Geosci., http://dx.doi.org/10.1016/j.cageo.2012.07.008, 51, 143-152, 2013.01.
8. Shuji Yamanaka, Toshikazu Arai, Anju Sawada, Hideki Yayama, Incompressible edge wave in classical two-dimensional electron liquid on helium surface, Europhys. Lett., 100, 17009, pp. 1-5, 2012.10.
9. Toshikazu Arai, Shuji Yamanaka, Hideki Yayama, Anju Sawada, Akira Fukuda, Linewidth broadening in edge-magnetoplasmon resonance of helium surface state electrons, J. Phys.: C.S., Vol. 400, No. 042001, pp. 1-4, 2012.12.
10. Ryoma Kobayashi, Hideki Yayama, Mobility of electrons on helium film capillary condensed on two dimensionally corrugated surface of dielectric substrate, J. Phys.: C.S., Vol. 400, No. 042034, pp. 1-4, 2012.09.
11. Ali G. Hafez, Essam Ghamry, Hideki Yayama and Kiyohumi Yumoto, A wavelet spectral analysis technique for automatic detection of geomagnetic sudden commencements, IEEE Trans. Geosci. Rem. Sens., Vol. 50, pp. 4503-4512, 2012.12.
12. Akihiro Mitsuda, Suguru Hamano, Nobutaka Araoka, Hideki Yayama, Hirofumi Wada, Pressure-Induced Valence Transition in Antiferromagnet EuRh2Si2, J. Phys. Soc. Jpn., 81, 023709-1~4, 2012.01.
13. T Arai, S Yamanaka, H Yayama, A Fukuda and A Sawada, Conductivity Measurement of Helium Surface Electrons in the Coexistence of Adsorbed 2D Atomic Hydrogen Gas, J. Phys.: C.S., 150 (2009) 032129-1~4, 2009.04.
14. Hideki Yayama and Michihiro Yoshimura, Installation of a Superconducting Magnet in a Cryogen-Free Dilution Refrigerator, J. Phys.: C.S., 150 (2009) 012056-1~4, 2009.04.
15. Toshikazu Arai, Hideki Yayama and Kimitoshi Kono, Electron attachment to atomic hydrogen on the surface of liquid 4He, Low Temp. Phys., 34 (2008) pp.397-403, 2008.04, 通常の方法ではエネルギーの低い電子は作れないとされているが、本論文は液体ヘリウム表面上の電子系が通常の電子よりも2桁以上ネルギーの低い超低エネルギー電子源として利用可能であることを実験的に示した。この実験は、低温での2次元電子と原子状水素との共存系の化学反応実験であるが、星間化学反応、DNA損傷、電離層生成過程などの研究に応用できる可能性を示すものである。また、この研究は原子状水素の超流動転移の研究へ発展する可能性を示唆するものである。.
16. R. Kobayashi, I.B. Berkutov, S. Yamanaka, T. Arai and H. Yayama, Charge Transport in Quasi-One-Dimensional Electron System on Liquid Helium, J. Phys. Soc. Jpn., 76 (2007) Supp. A, pp.169-197, 2007.01.
17. V.A. Nikolaenko, I.B. Berkutov, Yu.Z. Kovdrya, R. Kobayashi and H. Yayama, Localization and Ordering of Carriers in a Quasi-One-Dimensional Electron System on Liquid Helium, J. Low Temp. Phys., 148 (2007) pp.175-179, 2007.01.
18. Shuji Yamanaka, Toshikazu Arai Hideki Yayama, Electrical Conductance of Single Channel 1D Electron System on Liquid Helium, AIP CP850, 850, 1460-1461, (2006) pp.1460-1461, 2005.01.
19. Toshikazu Arai, Tomoyuki Mitsui and Hideki Yayama, Electron Attachment Reaction, Rates in 2D Atomic Hydrogen-Electron Mixed System on Liquid Helium Surface, AIP CP850, (2006) pp.83-84, 2005.01.
20. Hideki Yayama, Effect of Magnetic Field on Performance of ErNi0.9Co0.1 Regenerator in Gifford-McMahon Refrigerator,, AIP CP850, 850, 1577-1578, (2006) pp.157-158, 2005.01.
21. T. Arai, T. Mitsui and H. Yayama, Spin-polarization effect on electron attachment to atomic hydrogen on liquid helium surface, Journal of Low Tepreature Physics, 10.1007/s10909-005-1592-9, 138, 1-2, 445-450, vol. 138, Nos. 1/2, 445-450, 2005, 2005.01.
22. Toshikazu Arai, Tomoyuki Mitsui and Hideki Yayama, Helium surface electron attachment to atomic hydrogen in applied magnetic field, Journal of Physics and Chemistry of Solids, 10.1016/j.jpcs.2005.05.054, 66, 8-9, 1549-1551, 66 (2005) 1549-1551, 2005.01.
23. Hideki Yayama and Igor B. Berkutov, Temperature dependence of electrical conductance in 1D electron system formed on liquid helium surface, Physica E, 10.1016/S1386-9477(02)01082-2, 18, 1-3, 177-178, vol. 18 , pp. 177-178, 2003, 2003.01.
24. H. Yayama, Y. Hatta, and A. Tomokiyo, Hybrid cryogenic refrigerator combining magnetic- and gas-cooling system, Physica B: Condensed Matter, 10.1016/S0921-4526(99)02803-3, 284, 2016-2017, 284-288 (2000) 2016-2017, 2000.01.
25. H. Yayama, I.B. Berkutov, and A. Tomokiyo, Electrical conductivity of quasi-one-dimensional electrons on helium film,
H. Yayama, I.B. Berkutov, and A. Tomokiyo, Physica B: Condensed Matter, 10.1016/S0921-4526(99)03014-8, 284, 1914-1915, 284-288 (2000) 1914-1915, 2000.01.
26. H. Yayama, H. Hatta, Y. Makimoto, and A. Tomokiyo, Hybrid Cryogenic Refrigerator: Combination of Brayton Magnetic-Cooling and Gifford-McMahon Gas-Cooling System, Jpn. J. Appl. Phys., 10.1143/JJAP.39.4220, 39, 7A, 4220-4224, 39 (2000) 4220-4224, 2000.01.
27. Yu. Z. Kovdrya, V.A. Nikolaenko, H. Yayama, A. Tomokiyo, O.I. Kirichek, and I.B. Berkutov, Mobility and Localization of Carriers in a Quasi-One-Dimensional Electron System over Liquid Helium, J. Low Temp. Phys., 10.1023/A:1022595624480, 110, 1-2, 191-198, 110 (1998) 191-198, 1998.01.
28. A.M.C. Valkering, H. Yayama, and R.W. van der Heijden, Mobility of Electrons on a Helium Film Capillary Condensed on a 2D-grating, J. Low Temp. Phys., 10.1023/A:1022554922893, 113, 5-6, 873-878, 113 (1998) 873-878, 1998.01.
29. V.A. Nikolaenko, Yu. Z. Kovdrya, H. Yayama, and A. Tomokiyo, Mobility and localization of charge carriers in a quasi-one-dimensional electron system over liquid helium, Low Temp. Phys., 10.1063/1.593393, 23, 5-6, 482-486, 23 (1997) 482-486, 1997.01.
30. H. Yayama, A. Tomokiyo, O.I. Kirichek, I.B. Berkutov, and Yu. Z. Kovdrya, Carrier transport in quasi-one-dimensional electron system over liquid helium under strong localization conditions, Low Temp. Phys., 10.1063/1.593485, 23, 11, 878-881, 23 (1997) 878-881, 1997.01.
31. H. Yayama and A. Tomokiyo, Anisotropy of conductance in quasi-one-dimensional electron system on liquid helium, Czech. J. Phys., 46, 353-354, 46 (1996) 353-354, 1996.01.
32. H. Yayama, Y. Hatta, A. Tomokiyo, M. Okamura, Y. Tokai, A. Takahashi, and T. Hashimoto, Specific Heat of ErNi in Magnetic Fields and Its Performance as Regenerator Material in Gifford-McMahon Refrigerator at Cryogenic Temperatures, Jpn. J. Appl. Phys., 10.1143/JJAP.35.5545, 35, 10, 5545-5549, 35 (1996) 5545-5549, 1996.01.
33. H. Yayama and A. Tomokiyo, Electrical Resistivity anomaly and specific heat in gadolinium-hydrogen solid solution, J. Alloys Compounds, 10.1016/0925-8388(93)90226-D, 192, 1-2, 185-187, 192 (1993) 185-187, 1993.01.
34. Y. Tokai, A. Takahashi, M. Sahashi, T. Hashimoto, H. Yayama and A. Tomokiyo, Magnetic Field Influence on Er3Ni Specific Heat, Jpn. J. Appl. Phys., 10.1143/JJAP.31.3332, 31, 10, 3332-3335, 31 (1992) 3332-3335, 1992.01.
35. H. Yayama and A. Tomokiyo, Magnetic Property of Gadolinium Hydrides,, Adv. Cryog. Eng. Materials, 36 (1991) 293-298., 1991.01.
36. H. Yayama, A. Tomokiyo and K. Hirakawa, Activation Energies for Electrode Reaction of Metal Hydride in Alkaline Aqueous Solution, Jpn. J. Appl. Phys., 10.1143/JJAP.28.530, 28, 3, 530-534, 28 (1989) 530-534, 1989.01.
37. H. Yayama and A. Tomokiyo, Magnetic Susceptibility of Gd-H System, Proc. 10th Int. Workshop on Rare-Earth Magnets and Their Applications, Kyoto, 1989, p. 213-219, 1989.01.
38. T. Ikari, S. Shigetomi, Y. Koga, H. Nishimura, H. Yayama and A. Tomokiyo, Low-temperature photoacoustic spectra of BiI3 single crystals, Phys. Rev., 10.1103/PhysRevB.37.886, 37, 2, 886-890, B37 (1988) 886-890, 1988.01.
39. T. Hashimoto, T. Yazawa, R. Li, T. Kuzuhara, K. Matsumoto, H. Nakagome, M. Takahashi, M. Sahashi, K. Inomata, A. Tomokiyo and H. Yayama, Recent Progress in Magnetic Refrigeration Studies, Adv. Cryog. Eng., 33 (1988) 733-741, 1988.01.
40. T. Hashimoto, T. Kuzuhara, K. Matsumoto, M. Sahashi, K. Inomata, A. Tomokiyo and H. Yayama, Investigation of the Magnetic Refrigerant for the Ericsson Magnetic Refrigerator, Jpn. J. Appl. Phys., 26, 1673-1674, 26 (1987) Suppl. 26-3, p. 1673-1674, 1987.01.
41. M. Sahashi, H. Niu, Y. Tokai, K. Inomata, T. Hashimoto, K. Matsumoto, A. Tomokiyo and H. Yayama, New Complex Magnetic Material for Ericsson Magnetic Refrigerator, Jpn. J. Appl. Phys., 26, 1677-1678, 26 (1987) Suppl. 26-3, p. 1677-1678., 1987.01.
42. T. Hashimoto, T. Kuzuhara, K. Matsumoto, M. Sahashi, K. Inomata, A. Tomokiyo and H. Yayama, A New Method for Producing the Magnetic Refrigerant Suitable for the Ericsson Magnetic Refrigeration, IEEE Trans. Mag., MAG-23 (1987) 2847-2849, 1987.01.
43. H. Yayama, A. Tomokiyo, T. Hashimoto, T. Kuzuhara, R. Li, M. Sahashi and K. Inomata, Specific Heat of Regenerative Material RNi2 System, IEEE Trans. Mag., 10.1109/TMAG.1987.1065221, 23, 5, 2850-2852, MAG-23 (1987) 2850-2852, 1987.01.
44. M. Sahashi, H. Niu, Y. Toka, K. Inomata, T. Hashimoto, T. Kuzuhara, A. Tomokiyo and H. Yayama, Specific Heat and Magnetic Entropy Associated with Magnetic Ordering in Al-Rich RAl2 Sintered Compounds, IEEE Trans. Mag., 10.1109/TMAG.1987.1065718, 23, 5, 2853-2855, MAG-23 (1987) 2853-2855, 1987.01.
45. H. Yayama, K. Hirakawa and T. Tomokiyo, Equilibrium Potential and Exchange Current Density of Metal Hydride Electrode, Jpn. J. Appl. Phys., 10.1143/JJAP.25.739, 25, 5, 739-742, 25 (1986) 739-742, 1986.01.
46. T. Hashimoto, K. Matsumoto, T. Numazawa, T. Kuzuhara, A. Tomokiyo and H. Yayama, T. Goto, S. Todo and M. Sahashi, Investigation on the Possibility of RAl2 System as the Refrigerants in an Ericsson Type Magnetic Refrigerator, Adv. Cryog. Eng. Materials, 32 (1986) 279-286, 1986.01.
47. A. Tomokiyo, H. Yayama, H. Wakabayashi, T. Kuzuhara, T. Hashimoto, M. Sahashi and K. Inomata, Specific Heat and Entropy of RNi2 (R: Rare Earth Heavy Metals) in Magnetic Field, Adv. Cryog. Eng. Materials, 32 (1986) 295, 1986.01.
48. A. Tomokiyo, H. Yayama, H. Wakabayashi, T. Kuzuhara, T. Hashimoto, M. Sahashi and K. Inomata, Magnetic Entropy of the Mixed and Sintered Compound of the RAl2 System, Proc. 11th Int. Cryog. Eng. Conf., Berlin-West, 1986, p. 280, 1986.01.
49. T. Hashimoto, T. Kuzuhara, M. Sahashi, K. Inomata, A. Tomokiyo and H. Yayama, New application of complex magnetic materials to the magnetic refrigerant in an Ericsson magnetic refrigerator, J. Appl. Phys., 10.1063/1.339232, 62, 9, 3873-3878, 62 (1987) 3873-3878, 1986.01.
50. Hideki Yayama, Kazuyoshi Hirakawa, Akihisa Tomokiyo, Electrochemical Reaction and Electrode Potential of Metal-Hydride in Alkaline Aqueous Solution, Mem. Fac. Eng. Kyushu Univ., 45, 1, 25-35, 1985.03.
51. A. Tomokiyo, H. Yayama, T. Hashimoto, T. Aomine, M. Nishida and S. Sakaguchi, Specific heat and entropy of dysprosium gallium garnet in magnetic fields, Cryogenics, 10.1016/0011-2275(85)90209-7, 25, 5, 271-274, 25 (1985) 271-274, 1985.01.
52. H. Yayama, H. Kubo and A. Tomokiyo, Specific Heat of a Random Mixture of Two Antiferromagnets: CsMn1-xCoxCl3•2H2O, J. Phys. Soc. Jpn., 54 (1985) 4096-4098, 1985.01.
53. H. Yayama, K. Kuroki, K. Hirakawa and A. Tomokiyo, Electrode Resistance of Metal Hydride in Alkaline Aqueous Solution, Jpn. J. Appl. Phys., 10.1143/JJAP.23.1619, 23, 12, 1619-1623, 23 (1984) 1619-1623, 1984.01.
54. H. Yayama, O. Ichinomiya and K. Hirakawa, Electrochemical Hydrogen-Storage in Ti-Mn Allow Electrode, Jpn. J. Appl. Phys., 10.1143/JJAP.22.L621, 22, 10, L621-L623, 22 (1983) L621-L623, 1983.01.
55. H. Yayama and K. Hirakawa, Electrochemical Reaction of Cu Macroskeleton and its Effect in Metal-Hydride Electrode System, Jpn. J. Appl. Phys., 10.1143/JJAP.22.1348, 22, 8, 1348-1348, 22 (1983) 1348, 1983.01.
Works, Software and Database
1. Program for operation of dilution refrigerator.
Presentations
1. Hideki Yayama, Yosuke Yatsuyama, Mobility of 2D Electrons on Pure 4He and on 3He–4He Dilute Solution, International Conference of Quantum Fluids and Solids, 2013.08.
2. Hideki Yayama, LHe free Dilution Refrigerator, International Workshop Non-equilibrium Phenomena in Complex Quantum Systems , 2012.04.
3. Ryoma Kobayashi, Hideki Yayama, Mobility of electrons on helium film capillary condensed on two dimensionally corrugated surface of dielectric substrate, International Conference of Low Temperature Physics (LT26), 2011.08.
Educational
Educational Activities
Post graduate course -- Low temperature physics

Under graduate course -- Thermodynamics, Electromagnetism II, Experimental physics

General Education -- Electromagnetizm, Practice of electromagnetizm, Thermodynamics, Mechanics, Practice of michanics, Experiment of elemental physics
Other Educational Activities
  • 2005.07.