Author: Bernard George SilbernagelPublisher:
ISBN:
Category : Nuclear magnetic resonance
Languages : en
Pages : 458
Book Description
Nuclear Magnetic Resonance Studies in the Normal and Superconducting States of Some V3X Compounds
Author: Bernard George SilbernagelPublisher:
ISBN:
Category : Nuclear magnetic resonance
Languages : en
Pages : 458
Book Description
Nuclear Magnetic Resonance Studies of the High Temperature Superconductors in the Normal and Superconducting States
Author: Nicholas James CurroPublisher:
ISBN:
Category :
Languages : en
Pages : 418
Book Description
Scientific and Technical Aerospace Reports
Author: Nuclear Science Abstracts
Author: Nuclear Magnetic Resonance Studies of YBa2̳Cu3̳07̳ in the Superconducting State
Author: Sean Eric BarrettNuclear Magnetic Resonance in Superconducting Tin
Author: Gaylord Marvin AndroesPublisher:
ISBN:
Category : Nuclear induction
Languages : en
Pages : 162
Book Description
Nuclear Magnetic Resonance Studies of Yttrium Barium Copper Oxide in the Superconducting State
Author: Sean Eric BarrettPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In this thesis we report measurements of the $sp{63}$Cu Knight shift in the superconducting state for the plane (Cu(2)) and chain (Cu(1)) sites in YBa$sb2$Cu$sb3$O$sb7$. We also have measured the temperature and field dependent $sp{63}$Cu(2) nuclear spin relaxation rates ($sp{63}$W1$alpha$) in the superconducting state. Our determination of the $sp{63}$Cu Knight shift below T$sb{rm c}$ compensated for the diamagnetic shielding of our sample by using $sp9$Y NMR as an internal field marker. The $sp9$Y resonance was observed in the superconducting state using the Carr-Purcell-Meiboom-Gill pulse sequence to enhance the signal-to-noise ratio. We have interpreted our Knight shift data within a generalized Bardeen-Cooper-Schrieffer (BCS) pairing theory, and find that a spin-singlet pairing state is strongly favored by these data. The data are consistent with either an orbital s-wave or an orbital d-wave pairing state. While we can fit the Cu(2) data with a strong coupling energy gap, the Cu(1) data require a weak coupling gap. During our measurements of the temperature dependence of the Cu(2) spin-lattice relaxation rates in the superconducting state ($sp{63}$W1$alpha$, where $rmvec Hovert~vert\alpha$), we discovered that the anisotropy ratio $sp{63}$W1a/$sp{63}$W1c, which was essentially independent of temperature in the normal state, drops sharply just below T$sb{rm c}$(77 K $
Nuclear Magnetic Resonance Studies of High Temperature Superconductors
Author: Krzysztof R. GórnyNuclear Magnetic Resonance Study on Multiple Superconducting Phases in Ute2
Author: KATSUKI. KINJOPublisher: Springer
ISBN: 9789819786459
Category : Science
Languages : en
Pages : 0
Book Description
Author: