15 research outputs found
ESR Study of Y<inf>2</inf>SiO<inf>5</inf>:Nd<sup>143</sup> Isotopically Pure Impurity Crystals for Quantum Memory
© 2017, Springer-Verlag Wien.Two Y2SiO5 single crystals doped with 0.001 at.% of the 143Nd3+ ion (sample I containing the only 28Si isotope) and (sample II with the natural abundance of silicon isotopes) were studied using magnetic resonance methods. The spin–spin and spin–lattice relaxation times were measured at 9.7 GHz between 4 and 10 K. It is established that three relaxation processes describe temperature dependences of the spin–lattice relaxation for both crystals. They are one-phonon, two-phonon Raman and two-phonon Orbach–Aminov relaxation processes. It is established that temperature dependence of spin–spin relaxation time differs for different hyperfine components of the electron paramagnetic resonance spectrum of neodymium ions and depends on the kind of the neodymium isotope (143Nd or 145Nd)
Investigations of Y<inf>2</inf>SiO<inf>5</inf>: Nd<sup>143</sup> by ESR method
© 2016 Elsevier B.V.Here we present the investigation of Y2SiO5 monocrystals doped by isotopically pure 143Nd3+(0.025%) impurity by X-ray and electron spin resonance methods. The crystal structure parameters of Y2SiO5 monocrystal and microscopic parameters: g-tensors and hyperfine structure parameters of two nonequivalent Nd3+ paramagnetic centers were determined
Investigations of Y<inf>2</inf>SiO<inf>5</inf>: Nd<sup>143</sup> by ESR method
© 2016 Elsevier B.V.Here we present the investigation of Y2SiO5 monocrystals doped by isotopically pure 143Nd3+(0.025%) impurity by X-ray and electron spin resonance methods. The crystal structure parameters of Y2SiO5 monocrystal and microscopic parameters: g-tensors and hyperfine structure parameters of two nonequivalent Nd3+ paramagnetic centers were determined
Crystal environment of impurity Nd<sup>3+</sup>ion in yttrium and scandium orthosilicate crystals
© 2018 The ESEEM spectroscopy was used to determine positions of the 143Nd3+impurity ions in Y2SiO5single crystal. It is established that neodymium ions substitute yttrium ions in the Y2 positions with seven nearest oxygen ions. Crystal field parameters of 143Nd3+impurity centers in isotopically pure Y228SiO5and Sc228SiO5single crystals were determined using data of CW EPR spectroscopy and the known energy level schemes
Crystal environment of impurity Nd<sup>3+</sup>ion in yttrium and scandium orthosilicate crystals
© 2018 The ESEEM spectroscopy was used to determine positions of the 143Nd3+impurity ions in Y2SiO5single crystal. It is established that neodymium ions substitute yttrium ions in the Y2 positions with seven nearest oxygen ions. Crystal field parameters of 143Nd3+impurity centers in isotopically pure Y228SiO5and Sc228SiO5single crystals were determined using data of CW EPR spectroscopy and the known energy level schemes
Investigations of Y<inf>2</inf>SiO<inf>5</inf>: Nd<sup>143</sup> by ESR method
© 2016 Elsevier B.V.Here we present the investigation of Y2SiO5 monocrystals doped by isotopically pure 143Nd3+(0.025%) impurity by X-ray and electron spin resonance methods. The crystal structure parameters of Y2SiO5 monocrystal and microscopic parameters: g-tensors and hyperfine structure parameters of two nonequivalent Nd3+ paramagnetic centers were determined
Investigation of neodymium doped YVO<inf>4</inf>by EPR method
© 2018 Crystal field parameters of neodymium impurity centers in YVO4single crystals were determined using data of CW EPR spectroscopy and the known energy level schemes. The spin echo spectroscopy was used to determine spin-lattice and spin-spin relaxation times of the143Nd3+and145Nd3+impurity ions in YVO4single crystal
Investigations of Y<inf>2</inf>SiO<inf>5</inf>: Nd<sup>143</sup> by ESR method
© 2016 Elsevier B.V.Here we present the investigation of Y2SiO5 monocrystals doped by isotopically pure 143Nd3+(0.025%) impurity by X-ray and electron spin resonance methods. The crystal structure parameters of Y2SiO5 monocrystal and microscopic parameters: g-tensors and hyperfine structure parameters of two nonequivalent Nd3+ paramagnetic centers were determined
ESR Study of Y<inf>2</inf>SiO<inf>5</inf>:Nd<sup>143</sup> Isotopically Pure Impurity Crystals for Quantum Memory
© 2017, Springer-Verlag Wien.Two Y2SiO5 single crystals doped with 0.001 at.% of the 143Nd3+ ion (sample I containing the only 28Si isotope) and (sample II with the natural abundance of silicon isotopes) were studied using magnetic resonance methods. The spin–spin and spin–lattice relaxation times were measured at 9.7 GHz between 4 and 10 K. It is established that three relaxation processes describe temperature dependences of the spin–lattice relaxation for both crystals. They are one-phonon, two-phonon Raman and two-phonon Orbach–Aminov relaxation processes. It is established that temperature dependence of spin–spin relaxation time differs for different hyperfine components of the electron paramagnetic resonance spectrum of neodymium ions and depends on the kind of the neodymium isotope (143Nd or 145Nd)
ESR Study of Y<inf>2</inf>SiO<inf>5</inf>:Nd<sup>143</sup> Isotopically Pure Impurity Crystals for Quantum Memory
© 2017, Springer-Verlag Wien.Two Y2SiO5 single crystals doped with 0.001 at.% of the 143Nd3+ ion (sample I containing the only 28Si isotope) and (sample II with the natural abundance of silicon isotopes) were studied using magnetic resonance methods. The spin–spin and spin–lattice relaxation times were measured at 9.7 GHz between 4 and 10 K. It is established that three relaxation processes describe temperature dependences of the spin–lattice relaxation for both crystals. They are one-phonon, two-phonon Raman and two-phonon Orbach–Aminov relaxation processes. It is established that temperature dependence of spin–spin relaxation time differs for different hyperfine components of the electron paramagnetic resonance spectrum of neodymium ions and depends on the kind of the neodymium isotope (143Nd or 145Nd)