Y. Yoshida, Y. Kobayashi, K. Hayakawa, K. Yukihira, A. Yoshida, H. Ueno, F. Shimura and F. Ambe, “In-situ observation of substitutional and interstitial Fe atoms in Si after GeV-implantation: an in-beam Mossbauer study” Physica B, 376-377 (2006) 69. Y. Yoshida, S. Horie, K. Niira, K. Fukui and K. Shirasawa, “In-situ observation of iron atoms in multicrystalline silicon at 1273 K and 300 K by Mossbauer spectroscopy”, Physica B, 376-377 (2006) 227. Y. Yoshida, S. Ogawa and K. Arikawa, “Mossbauer Study on Fe impurities in Si Crystals”, in Proc. of the 4-th International Symposium on Advanced Science and Technology of Silicon Materials, 110-114, 605-608 (2004). Y. Yoshida, S. Ogawa and K. Arikawa, “Direct Observation of Substitutional Fe Atoms in Si and SOI wafers at 1273 K”, Physica B, 340-342, 605-608 (2003). Y. Yoshida, “Direct Observation of Substitutional and Interstitial Fe atoms in Si by high-temperature and In-beam Mossbauer Spectroscopy”, ALTECH 2003, ECS, Salt Lake City, US, 479-482 (2003). Y. Yoshida, Y. Kobayashi, A. Yoshida, X. Diao, S. Ogawa, K. Hayakawa, K. Yukihira, F. Shimura and F. Ambe, “In-Beam Mossbauer Spectroscopy after GeV-Ion Implantation at an On-line Projectile-Fragments Separator”, Hyperfine Interactions, 141-142, 157-162 (2002). S. Ogawa and Y. Yoshida, “Direct Observation of Substitutional Fe atoms in p-type Si at 1273 K”, in Proc. of the Forum on the Science and Technology of Silicon Materials, 330-331(2001). Y. Yoshida, Y. Kobayashi, F. Ambe, E. Yagi, A. Seeger et.al, “Direct Observation of Self-Interstitial Motion in Pure Iron by 56Fe (d,p) 57Fe In-Beam Mossbauer Spectroscopy”, Defect and Diffusion Forum, 194-199, 29-34 (2001). Y. Yoshida, Y. Kobayashi, K. Hayakawa, K. Yukihira, F. Shimura, A. Yoshida, X. Diao, H. Ogawa, Y. Yano and F. Ambe, “In-Beam Mossbauer Study on Interstitial and Substitutional 57Mn/57Fe Jumps in Si”, Defect and Diffusion Forum, 194-199, 611-616 (2001). Y. Yoshida, S. Ogawa, S. Endou, T. Shimura and M. Umeno, “Direct Observation of the Gettering Processes of Fe atoms in SOI wafers by Mossbauer Spectroscopy”, in Proc. of 3rd. International Symposium on Advanced Science and Technology of Silicon Materials, JSPS, 630-635 (2000). X. Diao, Y. Yoshida, K. Hayakawa, F. Shimura, et al., “Lattice Defects produced by GeV-Ion Irradiations in Si”, in Proc. of 3rd. International Symposium on Advanced Science and Technology of Silicon Materials, JSPS, 175-180 (2000). Y. Kobayashi, Y. Yoshida, A. Yoshida, Y. Watanabe, K. Hayakawa, K. Yukihira, F. Shimura and F. Ambe, “In-Beam Mossbauer Study of 57Mn/57Fe in Si Following Projectile Fragmentation and Implantation”, Hyperfine Interactions, 126, 417-420 (2000). Y. Yoshida, Y. Kobayashi, K. Hayakawa, K. Yukihira, F. Shimura, A. Yoshida, Y. Watanabe, X. Diao, H. Ogawa, Y. Yano and F. Ambe, “In-Beam Mossbauer Study on Interstitial and Substitutional 57Mn/57Fe Jumps in Si”, in Proc. of 3rd. International Symposium on Advanced Science and Technology of Silicon Materials, JSPS, 169-174 (2000). Y. Yoshida, N. Murase, “In-Situ Observation of Stress-Induced Martensite Transformation in SUS304 Stainless Steel by Mossbauer Spectroscopy”, in Proc. of JIMIC-3 Kyoto, 923-926 (1999). Y. Yoshida, N. Murase, T. Kakeshita, T. Saburi, “In-Situ Mossbauer Study on the Nucleation Process of Martensitic Transformation in Fe68.3Ni31.7 Alloy”, in Proc. of JIMIC-3? Kyoto, 985-988 (1999). Yoshida, “Mossbauer spectroscopy to investigate atomistic jump processes on an atomistic scale”, Hyperfine Interactions, 113, 183-198 (1998). Y. Yoshida and F. Shimura, Electrochemical Society Proceedings, 98-1, 984-996 (1998), “In-Situ Observation of Diffusion and Segregation of Fe atoms in Si Crystals at High Temperature by Mossbauer spectroscopy”, (The 8th International Symposium on Silicon materials Science and Technology, San Diego May 1998). Y. Kobayashi, Y. Yoshida, K. Hayakawa, K. Yukihira, J. Nakamura, H. Haslein, S. Nasu, N. Inabe, Y. Watanabe, A. Yoshida, M. Kase, A. Goto, S. Yano, E. Yagi and F. Ambe, “In-beam Mossbauer Spectroscopy for Materials Science at RIKEN Accelerator Facility”, Hyperfine Interactions, (c) 3, 273-276 (1998). J. Kapoor, D. Riegel, Yi Li, C. Polaczyk, J. Andres, F. Mezei, R. Sielemann, Y. Yoshida, W. D. Brewer, L. A. de Mello and S. Frota-Pessoa, “Observation of Magnetism of Fe at an Interstitial Site in a Metal Host”, Phys. Rev. Lett., 78, 1279-1282 (1997). Y. Yoshida, Y. Kobayashi, K. Hayakawa, K. Yukihira, J. Nakamura, S. Nasu, E. Yagi and F. Ambe, “In-beam Mossbauer Study on 57Fe jumps in Solid Ar and Solid Xe after Coulomb-Excitation and Recoil-Implantation”, RIKEN Review, 16, 19-20, (1997). Y. Kobayashi, Y. Yoshida, K. Hayakawa, K. Yukihira, J. Nakamura, S. Nasu, N. Inabe, Y. Watanabe, A. Yoshida, M. Kase, A. Goto, S. Yano, and F. Ambe, “In-beam Mossbauer Spectroscopy of 57Fe using a 57Mn beam from RIPS of RIKEN Ring Cyclotron”, RIKEN Review, 16, 21-22, (1997). H. Nakajima, S. Ohshida, K. Nonaka, Y. Yoshida, and F. E. Fujita, “Diffusion of Iron in b-TiFe Alloys”, Scripta Mat. 34, 949-953 (1996). Y. Yoshida, Y. Masuda, H. Haslein, F. E. Fujita and H. Nakajima, “High Temperature Mossbauer Study on the Fast Diffusion of Fe in b-TiFe Alloys”, Defect and Diffusion Forum, 143-147, 461-466 (1996). Y. Yoshida, Y. Kobayashi, K. Yukihira, K, Hayakawa, H. Haslein, F. Ambe and S. Nasu; “RIKEN-In Beam Mossbauer Spectrometer”, JHP-Supplement, 16, 28 (1995). Y. Yoshida, H. Haslein, F. E. Fujita and H. Nakajima; “A Precursor Effect Followed by the Fast Diffusion of Fe in b-TiFe Alloys”, in Proc. of Int. Conf. on the Applications of the Mossbauer Effects, Rimini 201-204 (1995). Y. Yoshida; “In-Beam Mossbauer Spectroscopy on Solid State Physics”, JHP-Supplement, 15, 155 (1994). G. Vogl, M. Sugimoto, and Y. Yoshida; “High-temperature Observations of the Dynamics of Small Second Phase Particles Leading to Fast Diffusion of Iron in α-Zirconium”, J. Nuclear Mat., 199, 112 (1993). B. Keck, R. Sielemann, and Y. Yoshida; “Iron on Substitutional and Interstitial Lattice Sites in Alkali Metals and Isomer Shift Systematics for Interstitial Iron in Elemental Metals", Phys. Rev. Lett., 71, 4178-4181(1993). Y. Yoshida, P. Fratzl, G. Vogl, H. Hofer and F. Dworschak; “Radiation-induced Segregation in Proton-irradiated AuFe Studied by Mossbauer Spectroscopy” J. Phys.: Condens. Mat., 4, 2415-2428 (1992). P. Fratzl, Y. Yoshida, G. Vogl and H. G. Haubold; “Phase-Separation Kinetics of Dilute Cu-Fe Alloys Studied by Anomalous Small-Angle X-Ray Scattering and Mossbauer Spectroscopy", Phys. Rev., B46, 11323-11331 (1992). . Fratzl, Y. Yoshida, F. Langmayr, and G. Vogl; “Defect-mediated Nucleation of α-Fe in Au-Fe Alloy”, Phys. Rev. B44, 4192-4199 (1991). R. Sielemann and Y. Yoshida; “In-Beam Mossbauer Spectroscopy at Heavy-Ion Accelerators”, Hyperfine Interactions, 68, 119-130 (1991). R. Sielemann, Y. Yoshida, B. Keck, L. Wende and G. Vogl; “Mossbauer Effect Following Coulomb Excitation and Implantation: Localized and Long-range Diffusion of Interstitially Implanted Iron”, Hyperfine Interactions, 56, 1643 (1990). Y. Yoshida, M. Sugimoto, D. Tuppinger and G. Vogl; “Search for Anomalously Fast Diffusion of Fe in a-Ti and a-Zr with Mossbauer Spectroscopy”, Defect and Diffusion Forum, 66-69, 347 (1990). Y. Yoshida, P. Fratzl, W. Miekeley and G. Vogl; “Anomalously Fast Diffusion of Fe in Zr-Nb Alloys”, Defect and Diffusion Forum, 66-69, 353 (1990). Y. Yoshida, P. Fratzl, W. Miekeley and G. Vogl; “Anomalously Fast Diffusion of Fe in Zr-Nb Alloys”, Defect and Diffusion Forum, 66-69, 353 (1990). Y. Yoshida, P. Fratzl, F. Langmayr and G. Vogl; “Short-Range-Order in Au-Fe Alloys Studied by High-Temperature Mossbauer Spectroscopy”, Phys. Rev. B39, 6395-(1989). Y. Yoshida; “In-Beam Mossbauer Study of Atomic Jump Processes in Metals”, Hyperfine Interactions, 47, 95-113 (1989). Y. Yoshida, M. Menningen, R. Sielemann, G. Vogl, G. Weyer and K. Schroeder; “Local Atomic Jump Process of Iron in a-Zirconium”, Phys. Rev. Lett., 61, 195-198 (1988). A. Heiming, K. H. Steinmetz, G. Vogl and Y. Yoshida; “Mossbauer Studies on Self-Diffusion in Pure Iron”, J. Phys. F: Metal Phys., 18, 149 (1988). Y. Yoshida, W. Miekeley, W. Petry, W. Stehr, K. H. Steinmetz and G. Vogl; “Anomalously Fast Diffusion of Fe in b-Zr-Fe Alloys, A Mossbauer Study”, Mat. Sci. Forum, 15-18, 487-492 (1987). M. Menningen, R. Sielemann, G. Vogl, Y. Yoshida, K. Bonde-Nielsen and G. Weyer; ”Interstitial Implantation of Iron into Aluminum”, Europhy. Lett., 3, 3-8 (1987). M. Menningen, R. Sielemann, G. Vogl, Y. Yoshida, K. Bonde-Nielsen and G. Weyer; “Atomic Jump Processes in Metallic Systems”, Hyperfine Interactions, 35, 807-810 (1987). Y. Yoshida, S. Nasu, F. E. Fujita, Y. Maeda and H. Yoshida, “57Fe Mossbauer Study on Point Defects in Pure a-Fe”, J. Magn. Magn. Mater., 34-35, 753-756 (1983). Y. Yoshida, S. Nasu and F. E. Fujita; “ 57Fe Mossbauer Study on Point Defects in Pure Iron”, in Proc. of Int. Conf. of Yamada Conference V, 199-202 (1982). S. Nasu, Y. Yoshida and F. E. Fujita; “57Fe Mossbauer Study on Fe-C Alloy System”, in Proc. of Int. Conf. on the Applications of the Mossbauer Effect, Jaipur. Y. Yoshida, M. Kawakami and T. Nakamichi; ”Magnetic Properties of a Ternary Alloy Mn0.5V0.5-yAly”, J. Phys. Soc. Japan, 50, 2203 (1981). M. Kawakami, Y. Yoshida, T. Nakamichi, S. Ishida and H. Enokiya; “Magnetic Properties of the Heusler Alloy Mn2VAl”, J. Phys. Soc. Japan, 50, 1041 (1981).