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Journal Articles

Effect of high-energy ion irradiation on magnetic properties in Fe-Pt invar alloys

Ono, Fumihisa*; Kanamitsu, Hiroaki*; Matsushima, Yasushi*; Chimi, Yasuhiro; Ishikawa, Norito; Kambara, Tadashi*; Iwase, Akihiro*

Nuclear Instruments and Methods in Physics Research B, 245(1), p.166 - 170, 2006/04

 Times Cited Count:4 Percentile:34.39(Instruments & Instrumentation)

Specimens of both ordered and disordered Fe-28.3at.%Pt alloys were irradiated with 200-MeV Xe ions to the fluence of 10$$^{14}$$ ions/cm$$^{2}$$. Measurements of AC-susceptibility-temperature curves were made for each specimen before and after the irradiation by using a specially designed apparatus for rapid measurements. In contrast to the expectation from the previous results for Fe-Ni alloys, in disordered Fe-Pt invar alloy the Curie temperature, T$$_{C}$$ decreased about 15 K by the irradiation. This fact cannot be explained by considering the lattice expansion effect alone. In Fe-Pt invar alloys the effect of lattice expansion may be cancelled out by some other effects which may be originated from the large difference in atomic mass between the two elements. For ordered Fe-Pt alloy, T$$_{C}$$ decreased as large as 60 K with the same fluence. The value of T$$_{C}$$ for both ordered and disordered Fe-Pt invar alloys coincide with each other after the irradiation. This fact can be explained by considering that the ordered state becomes disordered by the irradiation.

Journal Articles

Magnetic and electrical properties of NpTGa$$_{5}$$ (T=Fe, Rh and Ni)

Aoki, Dai*; Homma, Yoshiya*; Shiokawa, Yoshinobu; Sakai, Hironori; Yamamoto, Etsuji; Nakamura, Akio; Haga, Yoshinori; Settai, Rikio*; Onuki, Yoshichika

Journal of the Physical Society of Japan, 74(8), p.2323 - 2331, 2005/08

 Times Cited Count:53 Percentile:85.25(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Single crystal growth of large-size and high-quality NpCoGa$$_{5}$$ and its electrical and magnetic properties

Aoki, Dai*; Homma, Yoshiya*; Shiokawa, Yoshinobu; Yamamoto, Etsuji; Nakamura, Akio; Haga, Yoshinori; Settai, Rikio*; Takeuchi, Tetsuya*; Onuki, Yoshichika

Journal of the Physical Society of Japan, 73(7), p.1665 - 1668, 2004/07

 Times Cited Count:43 Percentile:81.99(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

High temperature magnetic properties of UIr single crystals

Galatanu, A.; Haga, Yoshinori; Yamamoto, Etsuji; Matsuda, Tatsuma; Ikeda, Shugo; Onuki, Yoshichika

Journal of the Physical Society of Japan, 73(3), p.766 - 767, 2004/03

 Times Cited Count:17 Percentile:65.19(Physics, Multidisciplinary)

High-temperature magnetic susceptibilities of ferromagnetic UIr have been measured up to 800 K. The small saturation moment 0.5 $$mu_{rm B}$$ as well as the large electronic specific heat coefficient suggest itinerant ferromagnetic characteristics of this compound. We have found that the paramagnetic effective moment approarches to the value expected for free uranium ion above room temperature. This result suggests that magnetic moments at high temperature behave like localized moments.

Journal Articles

Magnetic studies on quaternary iron sulfides BaLn$$_2$$FeS$$_5$$(Ln=Ce,Pr,Nd,Sm) by magnetic susceptibility, specific heat, $$^{57}$$Fe m$"o$ssbauer spectrum, and neutron diffraction measurements

Wakeshima, Makoto*; Ino, Kentaro*; Hinatsu, Yukio*; Ishii, Yoshinobu

Bulletin of the Chemical Society of Japan, 76(8), p.1519 - 1525, 2003/08

 Times Cited Count:2 Percentile:13.36(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

Magnetic properties of some neptunyl(+1) complexes

Nakamoto, Tadahiro*; Nakada, Masami; Nakamura, Akio

Journal of Nuclear Science and Technology, 39(Suppl.3), p.102 - 105, 2002/11

no abstracts in English

Journal Articles

Magnetic and electrical properties of UIr

Yamamoto, Etsuji; Haga, Yoshinori; Matsuda, Tatsuma; Nakamura, Akio; Settai, Rikio*; Inada, Yoshihiko*; Sugawara, Hitoshi*; Sato, Hideyuki*; Onuki, Yoshichika

Journal of Nuclear Science and Technology, 39(Suppl.3), p.187 - 190, 2002/11

We succeeded in growing a high-quality single crystal of UIr with the monoclinic PbBi-type structure by the Czochralski pulling method in a tetra-arc furnace. The magnetization measurement indicates that UIr is an Ising-like ferromagnet with the Curie temperature $$T_{rm C}$$= 46 K. The magnetic moment is found to be oriented along the [1 0 $=1] direction in the (010) plane. The saturated moment is 0.5 $mu_{rm B}$$/U. The magnetic property, reflected in the magnetic susceptibility, electrical resistivity, Hall coefficient and thermoelectric power, is highly anisotropic. We also observed the de Haas-van Alphen (dHvA) oscillation. All the detected branches have large cyclotron effective masses ranging from 9.6 to 32 $$m_0$$. They are consistent with the electronic specific heat coefficient $$gamma$$=49 mJ/K$$^2cdot$$mol.

JAEA Reports

Feasibility study on magnetic separation

Oda, Yoshihiro; Funasaka, Hideyuki; Wang, X.*; Obara, Kenji*; Wada, Hitoshi*

JNC TY8400 2000-002, 47 Pages, 2000/03

JNC-TY8400-2000-002.pdf:2.53MB

no abstracts in English

Journal Articles

Magnetic properties of neptunyl(+1) compounds

Nakamoto, Tadahiro; Nakada, Masami; Nakamura, Akio

Recent Research Developments in Inorganic Chemistry, 2, p.145 - 163, 2000/00

no abstracts in English

Journal Articles

Does vortex lattice of YBa$$_{2}$$Cu$$_{3}$$O$$_{6.94}$$ in H$$bot$$C melt below intrinsic-pinning irreversibility line?

Ishida, Takekazu*; Okuda, Kiichi*; Asaoka, Hidehito

Journal of Low Temperature Physics, 117(5-6), p.1387 - 1391, 1999/12

no abstracts in English

JAEA Reports

Aeromagnetic survey in Tono area

Ogawa, Keizo*; Yokoi, Koichi*; Konishi, Naotoshi*

PNC TJ7718 98-001, 76 Pages, 1998/02

PNC-TJ7718-98-001.pdf:35.5MB

None

Journal Articles

Magnetic properties of layered perovskites NaLnTiO$$_{4}$$(Ln=Sm,Eu,and Gd)

*; Hinatsu, Yukio*; ; Saeki, Masakatsu

Journal of Solid State Chemistry, 138(2), p.342 - 346, 1998/00

 Times Cited Count:17 Percentile:55.3(Chemistry, Inorganic & Nuclear)

no abstracts in English

Journal Articles

Evidence for vortex lattice melting and softening in untwinned YBa$$_{2}$$Cu$$_{3}$$O$$_{7}$$ single crystal

Ishida, Takekazu*; Okuda, Kiichi*; Asaoka, Hidehito; *; Noda, Kenji; *

Journal of Low Temperature Physics, 105(5-6), p.1171 - 1176, 1996/00

 Times Cited Count:3 Percentile:23.61(Physics, Applied)

no abstracts in English

Journal Articles

Magnetic properties of ordered perovskite oxide Ba$$_{3}$$ZnU$$_{2}$$O$$_{9}$$

Hinatsu, Yukio

Journal of Alloys and Compounds, 218, p.58 - 63, 1995/00

 Times Cited Count:2 Percentile:31.27(Chemistry, Physical)

no abstracts in English

Journal Articles

Magnetic properties of tetravalent praseodymium perovskites BaPrO$$_{3}$$, BaCe$$_{y}$$Pr$$_{1-y}$$O$$_{3}$$, and Sr$$_{y}$$Ba$$_{1-y}$$PrO$$_{3}$$

Hinatsu, Yukio

Journal of Solid State Chemistry, 119, p.405 - 411, 1995/00

 Times Cited Count:12 Percentile:48.34(Chemistry, Inorganic & Nuclear)

no abstracts in English

Journal Articles

Homogeneity of superconductivity in YBa$$_{2}$$Cu$$_{3}$$O$$_{x}$$ single crystals

Asaoka, Hidehito; Ishida, Takekazu*; ; Okuda, Kiichi*; Noda, Kenji; *

Japanese Journal of Applied Physics, 33(12A), p.6537 - 6538, 1994/12

 Times Cited Count:1 Percentile:11.23(Physics, Applied)

no abstracts in English

Journal Articles

Magnetic studies on alkali metal uranates(V)MUO$$_{3}$$ with the perovskite structure

Hinatsu, Yukio

Journal of Alloys and Compounds, 203, p.251 - 257, 1994/00

 Times Cited Count:23 Percentile:81.05(Chemistry, Physical)

no abstracts in English

Journal Articles

Magnetic properties of ordered perovskites Ba$$_{2}$$MUO$$_{6}$$(M=Fe,Co,Ni)

Hinatsu, Yukio

Journal of Alloys and Compounds, 215, p.161 - 167, 1994/00

 Times Cited Count:9 Percentile:60.03(Chemistry, Physical)

no abstracts in English

Journal Articles

Magnetic properties of ordered perovskites Ba$$_{3}$$CaU$$_{2}$$O$$_{9}$$ and Ba$$_{3}$$SrU$$_{2}$$O$$_{9}$$

Hinatsu, Yukio

Journal of Solid State Chemistry, 108, p.356 - 361, 1994/00

 Times Cited Count:4 Percentile:22.27(Chemistry, Inorganic & Nuclear)

no abstracts in English

Journal Articles

Magnetic susceptibility and electron paramagnetic resonance study of KUO$$_{3}$$ with cubic perovskite structure

Hinatsu, Yukio

Journal of Solid State Chemistry, 110, p.118 - 123, 1994/00

 Times Cited Count:8 Percentile:38.08(Chemistry, Inorganic & Nuclear)

no abstracts in English

34 (Records 1-20 displayed on this page)