Zobrazeno 1 - 10
of 25
pro vyhledávání: '"D R S Somayajulu"'
Autor:
Narendra Patel, Mitesh Sarkar, Mukesh Chawda, K. C. Sebastian, R. P. Singh, D. R. S. Somayajulu, S. Murlithar, D. K. Awasthi
Publikováno v:
Radiation Effects and Defects in Solids. 161:361-364
Radiation-induced defects are studied in cubic rhodium metal, using the local probe technique ‘Time differential perturbed angular correlation’ (TDPAC) at liquid N2 temperature. Isochronal annealing was done at 300, 1073 and 1473 K temperatures.
Publikováno v:
Hyperfine Interactions. 160:241-246
Hyperfine interaction techniques like Mossbauer spectroscopy are very sensitive tools to study the local probe interactions in dilute magnetic semiconductors. We report here a Mossbauer study on the concentration dependence in Fe0.008Ge1−x Tex for
Publikováno v:
Scopus-Elsevier
High-energy MeV ions from accelerators are known to produce drastic modifications in polymers. The typical effects include chain scissions, crosslinks, molecular emission and double bond formation. Poly(methyl methacrylate) was doped with Fe(III) and
Publikováno v:
Hyperfine Interactions. :587-592
Mossbauer studies of multiple substitutions in YBCO with general formula (Y1−Z Ca Z )Ba2(Cu1−X−Y Fe Y M X )3O7−δ are reported. XRD has been used to find out the lattice parameters. All the samples show a single tetragonal phase formation. Io
Publikováno v:
Hyperfine Interactions. :613-617
TDPAC study of InBi1−x Te x with x=0.0, 0.01, 0.05, 0.1 and 0.2 as a function of temperature is done. Both pure and Te-doped samples show a semi-metallic character up to around room temperature. Above room temperature a steep transition to semicond
Publikováno v:
Hyperfine Interactions. :427-431
Mossbauer study of semimetals is of great importance in understanding the origin of hyperfine interactions in these materials. A concentration dependence study in FexSb1−x for x=0.0025, 0.005, 0.01, 0.05, 0.10 and 0.20 is reported. It was found tha
Publikováno v:
Hyperfine Interactions. :519-523
Probe-impurity interactions of In–Cd and In–Zn pairs in silver matrix have been studied using 111In-TDPAC measurements. The interactions are repulsive for both the pairs. For 3% alloys, the interaction energy of In–Cd pairs in Ag is 51± 2 meV
Publikováno v:
Hyperfine Interactions. :409-413
The EFG in IV–VI compound semiconductor SnSe was studied using two hyperfine interaction techniques, namely, TDPAC and Mossbauer spectroscopy. The EFG in this material increases sharply up to 300 K and thereafter at higher temperatures it gets satu
Publikováno v:
Hyperfine Interactions. 99:347-351
BaHfO3 is prepared by sintering a mixture of BaCO3 and HfO2 giving the same heat treatments as for YBa2Cu3O7−δ (YBCO). X-ray diffraction analysis confirms the formation of cubic BaHfO3 along with some unreacted HfO2. A181Ta TDPAC study of the samp
Publikováno v:
Il Nuovo Cimento A. 107:1635-1645
Excitation functions of the reactions181Ta(α,xn) and209Bi(α,xn) have been measured with stacked-foil technique and high-resolution Ge(Li) spectroscopy method for projectile energiesE≤50 MeV. The excitation functions for the production of184Re,183