ESR Study of Y2SiO5:Nd143 Isotopically Pure Impurity Crystals for Quantum Memory

• Published in: Applied magnetic resonance Vol. 48; no. 6; pp. 589 - 596
• Main Authors: Sukhanov, A. A., Tarasov, V. F., Eremina, R. M., Yatsyk, I. V., Likerov, R. F., Shestakov, A. V., Zavartsev, Yu. D., Zagumennyi, A. I., Kutovoi, S. A.
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.06.2017; Springer Nature B.V
• Subjects: Atoms and Molecules in Strong Fields; Crystal lattices; Dependence; Electron paramagnetic resonance; Electrons; Isotopes; Laser Matter Interaction; Magnetic fields; Neodymium isotopes; Organic Chemistry; Original Paper; Phonons; Physical Chemistry; Physics; Physics and Astronomy; Quantum phenomena; Relaxation time; Silicon; Silicon isotopes; Single crystals; Solid State Physics; Spectroscopy/Spectrometry; Spin-lattice relaxation; Temperature; Temperature dependence; Natural Abundance; Electron Spin Resonance; Electron Spin Resonance Spectrum; Spin Relaxation Time; 143Nd
• ISSN: 0937-9347; 1613-7507
• DOI: 10.1007/s00723-017-0888-7

Two Y 2 SiO 5 single crystals doped with 0.001 at.% of the 143 Nd 3+ ion (sample I containing the only 28 Si 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 ( 143 Nd or 145 Nd).