17 Result(s)

Article

Feasibility study to investigate diffusion of Fe in Si using a Mössbauer spectroscopic microscope

A prototype Mössbauer Spectroscopic Microscope is applied for the feasibility study of ⁵⁷Fe impurity diffusion in Si wafers. A 2nm- ⁵⁷Fe deposited Si wafer is annealed at 430 °C for 1 hour, and subsequently the 1...

Y. Yoshida, Y. Ino, K. Matsumuro, T. Watanabe, H. Fujita… in Hyperfine Interactions (2016)

Article

3D-Mössbauer spectroscopic microscope for mc-Si solar cell evaluation

A 3D-Mössbauer Spectroscopic Microscope is developed to evaluate Fe impurities in multi-crystalline Si solar cells, which combines the Mössbauer spectroscopic microscope with a scanning electron microscope (SE...

Y. Ino, H. Soejima, K. Hayakawa, K. Yukihira, K. Tanaka… in Hyperfine Interactions (2016)

Article

Observation of iron impurity diffusion in silicon under bending stress by Mössbauer spectroscopy

External bending stress was applied to a ⁵⁷Fe-doped n-type silicon wafer, and transmission Mössbauer spectra were measured at room temperature in order to observe directly stress induced diffusion of ⁵⁷Fe atoms i...

K. Suzuki, Y. Yoshida, K. Hayakawa, K. Yukihira, M. Ichino… in Hyperfine Interactions (2010)

Article

Spin solitons in molecular magnetic materials with the chiral structure

Quasiperiodic sequences of the maxima of microwave absorption with decreasing amplitudes have been observed in a temperature range of 4–50 K in the electron spin resonance spectra of ferrimagnetic chiral singl...

R. B. Morgunov, V. L. Berdinskiĭ, M. V. Kirman, K. Inoue, J. Kishine… in JETP Letters (2006)

Article

In-Beam Mössbauer Spectroscopy after GeV-Ion Implantation at an On-line Projectile-Fragments Separator

Mössbauer spectra of ⁵⁷Mn/⁵⁷Fe in FZ-Si are measured between 30 and 800 K during implantation of radioactive ⁵⁷Mn (a half-life of 1.45 min), which are produced via a projectile nuclear fragmentation. The primary ...

Y. Yoshida, Y. Kobayashi, A. Yoshida, X. Diao, S. Ogawa… in Hyperfine Interactions (2002)

Article

In-beam Mössbauer study of ⁵⁷Mn/ ⁵⁷Fe in Si following projectile fragmentation and implantation

A new implantation technique is developed for the in-beam Mössbauer spectroscopy with implantation energy of several GeV using the RIken Projectile Separator (RIPS). ⁵⁷Mn (T _1/2 = 1.45 min...

Y. Kobayashi, Y. Yoshida, A. Yoshida, Y. Watanabe, K. Hayakawa… in Hyperfine Interactions (2000)

Article

Mössbauer spectroscopy to investigate jump mechanisms on an atomic scale: Fast diffusion studies

The fast diffusion of transition‐metal impurities in metals and semiconductors provides us with a challenging research field, because the jump frequencies and the concentration of the “diffusion vehicles” (pro...

Y. Yoshida in Hyperfine Interactions (1998)

Article

In-beam Mössbauer spectroscopy on single iron atoms in alkali metals

In-beam Mössbauer spectroscopy is applied to study implanted Fe atoms in the alkali metals Li, Na and K. From the Mössbauer parameters we infer that the Fe implants take up substitutional as well as interstiti...

B. Keck, R. Sielemann, Y. Yoshida in Hyperfine Interactions (1993)

Article

Comparison of the dynamics of the magnetic order above T_f in (Au, Fe) and Y(Fe, Al)₂

⁵⁷Fe Mössbauer spectra in external fields up to 13.5 T are recorded for two typical cluster glasses (Au, Fe) and Y(Fe, Al)₂ to investigate the spin dynamics above the freezing temperature. The spectra are analyz...

A. Pösinger, W. Steiner, M. Reissner, H. Winkler, A. X. Trautwein… in Hyperfine Interactions (1992)

Article

In-beam Mössbauer spectroscopy at heavy-ion accelerators

The method of “in-beam Mössbauer spectroscopy (IBMS)” as presently performed at heavy-ion accelerators is presented and reviewed. Experimental aspects are outlined and special features of this technique in com...

R. Sielemann, Y. Yoshida in Hyperfine Interactions (1992)

Article

Mössbauer effect following Coulomb excitation and implantation: Localized and long-range diffusion of interstitially implanted iron

The method of In-Beam Mössbauer Spectroscopy combining recoil implantation and Coulomb excitation allows the production of interstitial sites for Fe atoms in metals which display little or vanishing solubility...

R. Sielemann, M. Menningen, B. Keck, G. Vogl, Y. Yoshida in Hyperfine Interactions (1990)

Article

In-beam Mössbauer study of atomic jump processes

Interstitial jump processes are studied using “in-beam Mössbauer technique” combining Coulomb excitation and recoil implantation. After implantation of Coulomb-excited⁵⁷Fe into metals (α-Zr, Al, Nb and Au) at low...

Y. Yoshida in Hyperfine Interactions (1989)

Article

Poster contributions

A. Houlton, J. Silver, J. Guillin, M. H. Desbois, M. Lacoste… in Hyperfine Interactions (1989)

Article

Atomic jump processes in metallic systems: In-beam Mössbauer studies

An in-beam Mössbauer spectrometer was set up at the VICKSI heavyion accelerator in Berlin. Coulomb excited Mössbauer nuclei can be implanted into arbitrary sample materials. Measuring temperatures may be varie...

M. Menningen, R. Sielemann, G. Vogl, Y. Yoshida, K. Bonde-Nielsen… in Hyperfine Interactions (1987)

Article

Paramagnetic shifts of¹⁹F at oxygen in magnetic oxides

Y. Yoshida, T. Kobayashi, H. Nakayama, H. Yasuoka, T. Yamazaki in Hyperfine Interactions (1978)