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1.           Simultaneous superconducting and antiferroquadrupolar transitions in PrRh2Zn20
T. Onimaru, N. Nagasawa, K. T. Matsumoto, K. Wakiya, K. Umeo, S. Kittaka, T. Sakakibara, Y. Matsushita, and T. Takabatake
Phys. Rev. B 86 (2012) 184426.

2.           Ferromagnetic Instability in a Doped Band-Gap Semiconductor FeGa3,
K. Umeo, Y. Hadano, S. Narazu, T. Onimaru, M. A. Avila, T. Takabatake,
Phys. Rev. B 86 (2012) 144421.

3.           Pressure effect on the ferromagnetism of an off-center rattling system Eu8Ga16Ge30,
K. Umeo, H. Yamane, M. A. Avila, T. Onimaru, T. Takabatake,
J. Phys.: Conf. Ser. 391(2012) 012075.

4.           Nonmagnetic ground states and phase transitions in the caged compounds PrT2Zn20 (T=Ru, Rh and Ir)
T. Onimaru, K. T. Matsumoto, N. Nagasawa, Y. F. Inoue, K. Umeo, R. Tamura, K. Nishimoto, S. Kittaka, T. Sakakibara, and T. Takabatake,
J. Phys. Cond. Matter. 24 (2012) 294207.

5.           Interplay between crystal electric field and magnetic exchange anisotropies in the heavy fermion antiferromagnet YbRhSb under pressure
K. Umeo, H. Yamane, H. Kubo, Y. Muro, F. Nakamura, T. Suzuki, T. Takabatake, K. Sengupta, M. K. Forthaus, and M. M. Abd-Elmeguid,
Phys. Rev. B 85 (2012) 024412.

6.           Pressure Effect on the Anomalous Phase Transition in CeOs2Al10
K. Umeo, T. Ohsuka, Y. Muro, J. Kajino and T. Takabatake
J. Phys. Soc. Jpn. 80 (2011) 064709. 

7.           Antiferroquadrupolar Ordering in a Pr-Based Superconductor PrIr2Zn20
T. Onimaru, K. T. Matsumoto, Y. F. Inoue, K. Umeo, T. Sakakibara, Y. Karaki, M. Kubota, and T. Takabatake
Phys. Rev. Lett., 106 (2011) 177001.

8.           Ultrasonic investigation of a heavy fermion compound YbAgGe
Y. Nakanishi, R. Kashiwazaki, K. Deto, F. Shichinomiya, M. Nakamura, H. Kubo, K. Umeo, T. Onimaru, T. Takabatake and M. Yoshizawa
J. Phys.: Conf. Ser. 273 (2011) 012011.

9.           Multiple Magnetic Transitions in a Frustrated Heavy-Fermion Antiferromagnet YbAgGe under Magnetic Field and Pressure
H. Kubo, K. Umeo, K. Katoh, A. Ochiai, and T. Takabatake
J. Phys. Soc. Jpn. 79 (2010) 064715. 

10.       Structural modification and metamagnetic anomaly in the ordered state of CeOs2Al10
Y. Muro, J. Kajino, K. Umeo, K. Nishimoto, R. Tamura, and T. Takabatake
Phys. Rev. B 81 (2010) 214401. 

11.       Geometrical frustration versus magnetic order in the heavy-fermion antiferromagnet YbAgGe under high pressure
K. Sengupta, M. K. Forthaus, H. Kubo, K. Katoh, K. Umeo, T. Takabatake, and M. M. Abd-Elmeguid
Phys. Rev. B 81 (2010) 125129.

12.       Pressure-induced transition from a canted antiferromagnetic state to a ferromagnetic state in YbRhSb
K. Umeo, H. Yamane, H. Kubo, Y. Muro, and T. Takabatake
J. Phys.: Conf. Ser. 200 (2010) 012215.

13.       Frustrated antiferromagnet YbAgGe under magnetic fields and pressures
H. Kubo, K. Umeo, K. Katoh, A. Ochiai and T. Takabatake
J. Phys.: Conf. Ser. 200 (2010) 012098.

14.       Pressure-induced quantum critical phenomena in YbNiGe3
K. Umeo, N. Hosogi, M. A. Avila, and T. Takabatake
Phys. Status Solidi B 247 (2010) 751-753.

15.       Superconductivity and Structural Phase Transitions in Caged Compounds RT2Zn20 (R=La, Pr, T=Ru, Ir)
T. Onimaru, K. Matsumoto, Y. F. Inoue, K. Umeo, Y. Saiga, Y. Matsushita, R. Tamura, K. Nishimoto, I. Ishii, T. Suzuki and T. Takabatake
J. Phys. Soc. Jpn., 79 (2010) 033704.

16.       Sudden disappearance of the first-order transition in b-pyrochlore KOs2O6 under low pressure
K. Umeo, H. Kubo, J. Yamaura, Z. Hiroi and T. Takabatake,
J. Phys. Soc. Jpn., 78 (2009) 123602.

17.       Off-Center Guest Vibrations and Their Effect on Lattice Thermal Conductivity in n- and p-Type beta-Ba8Ga16Sn30
K. Suekuni, T. Tanaka, S. Yamamoto, M. A. Avila, K. Umeo, Y. Takasu, T. Hasegawa, N. Ogita, M. Udagawa, T. Takabatake,
Journal of Electronic Materials, 38 (2009) 1516-1520.

18.       Pressure-induced ferromagnetic order in the weak ferromagnet YbRhSb
K. Umeo, H. Kubo, Y. Muro, F. Nakamura, T. Suzuki, and T. Takabatake: J. Phys. Conf. Ser. 150 (2009) 042223.

19.       Giant uniaxial anisotropy in the magnetic and transport properties of CePd5Al2
T. Onimaru, Y. F. Inoue, K. Shigetoh, K. Umeo, H. Kubo, R. A. Ribeiro, A. Ishida A, M. A. Avila, K. Ohoyama, M. Sera, T. Takabatake,
J. Phys. Soc. Jpn., 77 (2008) 074708.

20.       Simultaneous structure and carrier tuning of dimorphic clathrate Ba8Ga16Sn30
K. Suekuni, M. A. Avila, K. Umeo, H. Fukuoka, S. Yamanaka, T. Nakagawa, T. Takabatake
Phys. Rev. B, 77 (2008) 235119. 

21.       Pressure-induced release of magnetic frustration in a quasi-kagome antiferromagnet YbAgGe
H. Kubo, K. Umeo, K. Katho A. Ochiai, and T. Takabatake.
J. Phys. Soc. Jpn., 77 (2008) 023704.

22.       Ba8Ga16Sn30 with type-I clathrate structure: Drastic suppression of heat conduction
M. A. Avila, K. Suekuni, K. Umeo, H. Fukuoka, S. Yamanaka, and T. Takabatake
Appl. Phys. Let., 92 (2008) 041901.

23.       A kondo lattice antiferromagnet CePd5Al2
R. A. Ribeiro, T. Onimaru, K. Umeo, M. A. Avila, K. Shigetoh, and T. Takabatake
J. Phys. Soc. Jpn., 76 (2007) 123710.

24.       Easy-plane magnetocrystalline anisotropy in the multistep metamagnet CeIr3Si2
K. Shigetoh, A. Ishida, Y. Ayabe, T. Onimaru, K. Umeo, Y. Muro, K. Motoya, M. Sera, and T. Takabatake
Phys. Rev. B, 76 (2007) 184429.

25.       Ce site substitution effect on the multipolar ordering in CeB6 
M. Sera, M. Kawaguchi, S. Kishimoto, A. Kondo, H. Iwakubo, H. Tou, K. Umeo and F. Iga
J. Magn. Magn. Mater. 310 (2007) e158-e159.

26.       Unusual pressure dependence of the multipolar interactions in CexLa1-xB6 
S. Ikeda, K. Umeo, H. Tou, M. Sera, F. Iga, and S. Kunii
J. Magn. Magn. Mater. 310 (2007) e163-e165.

27.       Pressure effects on the first order transition in MnFe(P,As) and MnFe(P,Ge)
H. Yabuta, K. Umeo, T. Takabatake, L. Chen, Y. Uwatoko
J. Magn. Magn. Mater. 310 (2007) 1826-1828.

28.       Cage-size control of guest vibration and thermal conductivity in Sr8Ga16Si30-xGex
K. Suekuni, M.A. Avila, K. Umeo, and T. Takabatake
Phys. Rev. B, 75 (2007) 195210.

29.       Pressure- and Field-Induced Non-Fermi-Liquid Behaviors in a Heavy-Fermion Antiferromagnet Ce7Ni3
K. Umeo and T. Takabatake
J. Low Temp. Phys. 147 (2007) 199-214.

30.       Specific-Heat Measurement above 3 GPa using a Bridgman Anvil Cell
H. Kubo, K. Umeo and T. Takabatake
J. Phys. Soc. Jpn. 76 (2007) 221-222.

31.       Pressure-Induced Magnetic Phase Transitions in Yb-Based Heavy-Fermion Compounds
K. Umeo, H. Kubo, F. Nakamura, Y. Haizaki, K. Katoh, A. Ochiai and T. Takabatake
J. Phys. Soc. Jpn. 76 (2007) 74-77.

32.       Temperature- and Field-Induced First-Order Ferromagnetic Transitions in MnFe(P1-xGex)
H. Yabuta, K. Umeo, T. Takabatake, K. Koyama, K. Watanabe
J. Phys. Soc. Jpn. 75 (2006) 113707.

33.       Roles of spin fluctuations and rattling in magnetic and thermoelectric properties of AT4Sb12 (A =Ca, Sr, Ba, La; T=Fe, Ru, Os)
T. Takabatake, E. Matsuoka, S. Narazu, K. Hayashi, S. Morimoto, T. Sasakawa, K. Umeo, and M. Sera
Physica B 383 (2006) 93-102.

34.       Carrier-tuning of single-crystalline Ba8Ga16Ge30
M. A. Avila, K. Suekuni, K. Umeo, and T. Takabatake
Physica B 383 (2006) 124-125.

35.       Glasslike versus crystalline thermal conductivity in carrier-tuned Ba8Ga16X30 clathrates (X=Ge, Sn)
M. A. Avila, K. Suekuni, K. Umeo, H. Fukuoka, S. Yamanaka, and T. Takabatake
Phys. Rev. B 74 (2006) 125109.

36.       Double phase transition in the heavy-fermion system Ce4Ni3Pb4
K. Shigetoh, T. Sasakawa, K. Umeo, T. Takabatake:
J. Phys. Soc. Jpn. 75 (2006) 033701.

37.       Reduced thermal conductivity and strong electron-phonon interaction in enhanced Pauli paramagnets AOs4Sb12 (A = Sr, Ba)
E. Matsuoka, S. Narazu, K. Hayashi, K. Umeo, T. Takabatake
Journal of the Physical Society of Japan 75, 014602 (1-5) (2006).

38.       Anisotropic 4f-spin dynamics across the B-T phase diagram of Ce7Ni3
A. Schenck, F. N. Gygax, K. Umeo, T. Takabatake, D. Andreica
Journal of Physics: Condensed Matter, 18, 1955-1966 (2006).

39.       Pressure- and Field-Induced Magnetic Instabilities in a Heavy-Fermion Antiferromagnet Ce7Ni3
K. Umeo, K. Motoya, H. Kadowaki, N. Aso, T. Tayama, T. Sakakibara, N. Kurita, M. Hedo, Y. Uwatoko, T. Takeuchi, and T. Takabatake
Journal of Alloys and Compounds, 408-412, 43-46 (2006).

40.       Probing Glasslike Excitations in Single Crystalline Sr8Ga16Ge30 by Specific Heat and Thermal Conductivity
K. Umeo, M. A. Avila, T. Sakata, K. Suekuni, T. Takabatake
Journal of the Physical Society of Japan 74, 2145-2148 (2005).

41.       Pressure Effects on the Phase Transitions and Energy Gap in CeRhAs
K. Umeo, K. Masumori, T. Sasakawa, F. Iga, and T. Takabatake
Physical Review B 71, 064110 (2005).

42.       Pressure effect on successive magnetic transitions in a frustrated compound YbAgGe
K. Umeo, K. Yamane, Y. Muro, K. Katoh, Y. Niide, A. Ochiai, and T. Takabatake
Physica B 359-361, 130-132 (2005).

43.       Non-Fermi-liquid behavior in CeRhBi and valence-fluctuating behavior in CeIrSb
T. Sasakawa, K. Shigetoh, D. Hirata, K. Umeo, and T. Takabatake
Physica B 359-361, 111-114 (2005).

44.       Effects of magnetic field and pressure on the weak ferromagnetism of YbRhSb
Y. Muro, Y. Haizaki, K. Umeo, H. Tou, M. Sera, T. Sakakibara, and T. Takabatake
Physica B 359-361, 124-126 (2005).

45.       Divalent State in YbGaGe: Magnetic, Thermal, Transport and Structural Studies
Y. Muro, T. Nakagawa, K. Umeo, M. Itoh, T. Suzuki, and T. Takabatake
Journal of the Physical Society of Japan 73, 1450-1452 (2004).

46.       Successive Magnetic Transitions in a Frustrated Compounds YbAgGe
K. Umeo, K. Yamane, Y. Muro, K. Katoh, Y. Niide, A. Ochiai, T. Morie, T. Sakakibara and T. Takabatake
Journal of the Physical Society of Japan 73, 537-540 (2004).

47.       Heavy-fermion weak-ferromagnet YbRhSb
Y. Muro, Y. Haizaki, M. S. Kim, K. Umeo, H. Tou, M. Sera, and T. Takabatake
Physical Review B 69, 020401(R) (2004).

48.       Structural and Electronic Interplay in the Gap Formation in CeRhAs1-xSbx (0≤x≤1)
T. Sasakawa, H. Miyaoka, K. Umeo, S. Aoyagi, K. Kato, F. Iga and T. Takabatake
Journal of the Physical Society of Japan 73, 262-268 (2004).

49.       Hole-doping and Pressure Effects on the Metal-Insulator Transition in Single Crystals of Y1-xCaxTiO3 (0.37≤x≤0.41)
M. Tsubota, F. Iga, T. Nakano, K. Uchihira, S. Kura, M. Takemura, Y. Bando, K. Umeo, T. Takabatake, E. Nishibori, M. Takata, M. Sakata, K. Kato and Y. Ohishi
Journal of the Physical Society of Japan 72, 3182-3188 (2003).

50.       Magnetic and thermoelectric properties of Ce2NiB10-ƒÂ(ƒÂ@0.3), a Ni-incorporated variant of CeB6
E. Matsuoka, K. Umeo, S. Tsuji, M. Sera, F. Iga and T. Takabatake
Journal of the Physical Society of Japan 72, 2344-2349 (2003).

51.       Non-Fermi-liquid behavior in the magnetic, transport, and thermal properties of single-crystal CeRhSn with valence fluctuations
M. S. Kim, Y. Echizen, K. Umeo, S. Kobayashi, M. Sera, P. S. Salamkha, O. L. Sologub, T. Takabatake, X. Chen, S. Yamanaka, T. Tayama, T. Sakakibara, M. H. Jung, and M. B. Maple
Physical Review B 68, 054416 (2003).

52.       Anisotropic transport and magnetic properties of frustrated CeRhSn
M. S. Kim, Y. Echizen, K. Umeo, T. Tayama, T. Sakakibara, and T. Takabatake
Physica B 329-333, 524-525 (2003).

53.       Field-induced magnetic transition in a heavy-fermion antiferromagnet Ce7Ni3
K. Umeo, Y. Echizen, M. H. Jung, T. Takabatake, T. Sakakibara, T. Terashima, C. Terakura, C. Pfleiderer, M. Uhlarz, and H. v. Löhneysen
Physical Review B 67, 144408 (2003).

54.       Superconductivity in magnetically ordered CeTe1.82
M. H. Jung, A. Alsmadi, H. C. Kim, Yunkyu Bang, K. H. Ahn, K. Umeo, A. H. Lacerda, H. Nakotte, H. C. Ri, and T. Takabatake
Physical Review B 67, 212504 (2003).

55.       Anisotropic thermoelectric properties of CeRhAs with superstructures
T. Takabatake, T. Suemitsu, T. Sasakawa, J. Kitagawa, K. Umeo, M. Nakajima, K. Iwasa, M. Kohgi
Acta Physica Polonica B34, 1303-1308 (2003).

56.       Field-induced magnetic phase in a heavy-fermion antiferromagnet Ce7Ni3
K. Umeo, Y. Echizen, T. Takabatake, T. Sakakibara, T. Terashima and C. Terakura
Journal of Physics: Condensed Matter, 15, S2159-S2162 (2003).

57.       Thermoelectric properties of Ce-based Kondo semimetals and semiconductors
T. Takabatake, T. Sasakawa, J. Kitagawa, T. Suemitsu, Y. Echizen, K. Umeo, M. Sera, Y. Bando
Physica B 328, 53-57 (2003).

58.       On the magnetic phase diagram of Ce7Ni3 in the H-T plane
A. Schenck, F. N. Gygax, D. Andreica, K. Umeo, T. Takabatake
Physica B 326, 394-397 (2002).

59.       Field-induced magnetic transitions and pressure-induced magnetic instability in CePdAl
T. Goto, S. Hane, K. Umeo, T. Takabatake and Y. Ishikawa
Journal of Physics and Chemistry of Solids, 63, 1159-1163 (2002).

60.       Successive phase transition and energy-gap formation in CeRhAs
T. Sasakawa, T. Suemitsu, T. Takabatake, Y. Bando, K. Umeo, M. H. Jung, M. Sera, T. Suzuki, T. Fujita, M. Nakajima, K. Iwasa, M. Kohgi, Ch. Paul, St. Berger, and E. Bauer
Physical Review B 66, 041103(R) (2002).

61.       Electrical resistivity of CeNiSn under uniaxial and hydrostatic pressures
Y. Echizen, K. Umeo, T. Igaue and T. Takabatake
Journal of Physics: Condensed Matter, 14, 5145-5152 (2002).   

62.       Non-Fermi liquid behavior in Ce2Rh3Ge5 above the critical pressure of the antiferromagnetic instability
K. Umeo, T. Takabatake, S. Hane, H. Mitamura, and T. Goto
Physica B 312-313, 403-405 (2002).

63.       mSR Studies of the heavy fermion compound Ce7Ni3
A. Kratzer, D. R. Noakes, G. M. Kalvius, E. Schreier, R. Wäppling, K. Umeo, T. Takabatake, and H. v. Löhneysen
Physica B 312-313, 469-471 (2002).

64.       Pressure-induced magnetic instability in Ce2Rh3Ge5
K. Umeo, T. Takabatake, T. Suzuki, S. Hane, H. Mitamura, and T. Goto
Physical Review B 64, 144412 (2001).

65.       Transport and magnetic properties of a low-density carrier system SmBiPt
M.-S. Kim, T. Sasakawa, T. Suemitsu, Y. Bando, K. Umeo, F. Iga, H. Mitamura, T. Goto, and T. Takabatake
Journal of the Physical Society of Japan, 70(12), 3650-3653 (2001).

66.       Electrical resistivity and thermoelectric power study of the heavy-fermion compounds (CexLa1-x)7Ni3
Y. Itoh, K. Umeo, and H. Kadomatsu
Journal of Alloys and Compounds, 315, 11-15 (2001).

67.       Muon-spin-rotation-study of Ce7Ni3 : muon-related and intrinsic properties in the paramagnetic phase
A. Schenck, D. Andreica, F. N. Gygax, K. Umeo, T. Takabatake, E. Schreier, A. Kratzer, and G. M. Kalvius
Journal of Physics: Condensed Matter, 13, 4277-4290 (2001).

68.       Neutron scattering study of heavy fermion antiferromagnet Ce7Ni3 under pressure
K. Motoya, T. Kawasaki, H. Kadowaki, T. Osakabe, H. Okumura, K. Kakurai, K. Umeo and T. Takabatake
Journal of Magnetism and Magnetic Materials, 226-230, 85-86 (2001).

69.       Thermoelectric properties of the Kondo semiconductor: Yb1-xLuxB12
F. Iga, T. Suemitsu, S. Hiura, K. Takagi, K. Umeo, M. Sera, T. Takabatake
Journal of Magnetism and Magnetic Materials, 226-230, 137-138 (2001).

70.       Large thermoelectric power in several metallic compounds of cerium and uranium
Y. Bando, T. Suemitsu, K. Takagi, H. Tokushima, Y. Echizen, K. Katoh, K. Umeo, Y. Maeda and T. Takabatake
Journal of Alloys and Compounds, 313, 1-6 (2000).

71.       Competing interactions and anisotropic magnetoresistance in layered CeTe2
M. H. Jung, K. Umeo, T. Fujita, and T. Takabatake
Physical Review B 62, 11609-11613 (2000).

72.       Antiferromagnetic transitions in the Kondo lattice system Ce2Ni3Ge5
Z. Hossain, S. Hamashima, K. Umeo, F. Iga, T. Takabatake, C. Geibel, and F. Steglich
Physical Review B 62, 8950-8953 (2000).

73.       Incommensurate magnetic structure of the heavy fermion antiferromagnet Ce7Ni3
H. Kadowaki, K. Motoya, T. Kawasaki, T. Osakabe, H. Okumura, K. Kakurai, K. Umeo, and T. Takabatake
Journal of the Physical Society of Japan, 69, 2269-2279 (2000).

74.       Magnetic ordering in single crystal CeNi0.82Cu0.18Sn
Y. Echizen, K. Umeo, S. Hamashima, T. Fujita, T. Takabatake, N. Kobayashi, I. Oguro
Solid State Communications, 115, 587-591 (2000).

75.       Transport and thermodynamic properties of CeBiPt
T. Pietrus, T. Mioković, A. Schröder, H. von Löhneysen, T. Yoshino, K. Takagi, K. Umeo, and T. Takabatake
Physica B 281&282, 745-746 (2000).

76.       Uniaxial pressure apparatus for magnetization measurements
Y. Uwatoko, M. Kosaka, T. Oki, K. Umeo, T. Takabatake, N. Mōri, and G. Oomi
Sci. Technol. High Pressure, 2, 1113-1114 (2000).

77.       Uniaxial-stress induced magnetic order in CeNiSn
K. Umeo, T. Igaue, H. Chyono, Y. Echizen, T. Takabatake, M. Kosaka, and Y. Uwatoko
Physical Review B 60, R6957-R6960 (1999).

78.       Antiferromagnetic Kondo-lattice systems Ce2Rh3Ge5 and Ce2Ir3Ge5 with moderate heavy-fermion behavior
Z. Hossain, H. Ohmoto, K. Umeo, F. Iga, T. Suzuki, T. Takabatake, N. Takamoto, and K. Kindo
Physical Review B 60 10383-10387 (1999).

79.       Superconductivity and magnetoresistance in a single-crystal LaNiSn
Y. Echizen, K. Umeo, T. Takabatake
Solid State Communications, 111, 153-157 (1999).

80.       Magnetic instability in Ce7Ni3 studied by low-temperature specific heat and magnetic susceptibility
K. Umeo, T. Pietrus, T. Takabatake, and H. v. Löhneysen,
Physica B 259-261, 407-408(1999).

81.       Pressure-induced quantum phase transition in Ce7Ni3
K. Umeo, T. Takabatake, T. Pietrus, H. v. Löhneysen, H. Ohmoto, K. Koyama, S. Hane, and T. Goto,
Physics of Strongly Correlated Electron Systems, JJAP Series 11, 154-156 (1998).

82.       Low-temperature specific heat and magnetic susceptibility near the pressure-induced quantum phase transition in Ce7Ni3
K. Umeo, T. Takabatake, H. Ohmoto, T. Pietrus, H. v. Löhneysen, K. Koyama, S. Hane, and T. Goto,
Physical Review B 58, 12095-12099 (1998).

83.       Magnetic and electrical properties of R7Pd3 (R=La, Ce, Pr, Nd and Sm)
H. Kadomatsu, K. Kuwano, K. Umeo, Y. Itoh, T. Tokunaga,
Journal of Magnetism and Magnetic Materials, 189. 335-340 (1998).

84.    Transport properties of heavy fermion compound Ce7Ni3
H. Kadomatsu, Y. Itoh, K. Umeo, N. Matsumoto, M. Inoue,
Journal of Magnetism and Magnetic Materials, 188. 213-218 (1998).

85.       Pressure-induced non-Fermi-liquid behavior in a heavy-fermion compound Ce7Ni3 around the antiferromagnetic instability
K. Umeo, H. Kadomatsu and T. Takabatake,
Physical Review B 55, R692-R695 (1997).

86.    Magnetic properties of the heavy-fermion antiferromagnet Ce7Ni3
K.Umeo, T. Takabatake, N. Sato, T. Komatsubara, K. Oda and K. Kindo,
Journal of the Physical Society of Japan, 66, 2133-2137 (1997).

87.       ˆł—͉ş‚É‚¨‚Ż‚éd‚˘“dŽqŒnCe7Ni3‚Ě”ńƒtƒFƒ‹ƒ~‰t‘Ě“I‹““Ž‚ĆƒXƒsƒ“‚Ě—h‚ç‚Ź
”~”ö˜a‘ĽC‚”Š•q˜Y
“ú–{•¨—Šw‰ďŽ, 52, 531-534 (1997).

88.    Non-Fermi-liquid behaviour at the pressure-induced antiferromagnetic to nonmagnetic transition in a heavy-fermion Compound, Ce7Ni3
K. Umeo, H. Kadomatsu and T. Takabatake,
Journal of Physics: Condensed Matter 8, 9743-9757 (1996).

89.       Transition from magnetic to nonmagnetic ground state in a heavy-fermion compound Ce7Ni3 under pressure
K. Umeo, H. Kadomatsu and T. Takabatake,
Physical Review B 54, 1194-1198 (1996).

90.       Pressure effect on the low temperature specific heat and magnetic susceptibility of heavy fermion compound Ce7Ni3
K. Umeo, K. Ishii and H. Kadomatsu,
Journal of Magnetism and Magnetic Materials, 148, 409-412 (1995).

91.       Electrical resistivity of Ce7Ni3 under high pressure
K. Umeo, K.Ishii and H. Kadomatsu,
Solid State Communications, 90, 321-324 (1994).

92.       External pressure enhancement of the dense Kondo effect in a PdCe Intermetallic compound
K. Umeo, Y. Aya, M. Itakura, N. Kuwano and K. Oki,
Journal of Physics and Chemistry of Solids, 54, 131-134 (1993).

93.       Variations in lattice parameters with annealing temperature for L-Pd5Ce
N. Kuwano, K. Umeo, K. Yamamoto, M. Itakura and K.Oki,
Journal of Alloys and Compounds, 181, 61- 68 (1992).

94.       Electron-Microscope Observation of SRO Structure in Pd7Ce3
M. Itakura, N. Kuwano, K. Oki, H. Sato, Y. Saito, and K. Umeo
Journal of Electron Microscopy,  38, 314-314 (1989).

95.       Measurements of mixed valences of Ce by L‡V-XANES Analysis
N. Kuwano, Y. Saito, K. Umeo, M. Itakura, and K. Oki
Eng. Sci. Rep. Kyushu Univ., 11, 195-200 (1989).