Superconducting quantum interference device susceptibility

Two techniques capable of positive identification of both the vanadyl and the vanadium(III) oxidation states are extended X-ray absorption spectroscopy (EXAS) and magnetic susceptibility. EXAS experiments on A. ceratodes yield approximately 95% V(III) and 5% V(IV) (148). A similar distribution, 90% V(III) and 10% V(IV), was found for A. nigra using a superconducting quantum interference device to measure magnetic susceptibility (149). [Pg.104]

Solid State Magnetic Susceptibility Measurements were conducted with a MPMS-XL 5T superconducting quantum interference device (SQUID) from Quantum Design at the University of Heidelberg in collaboration with Professor Peter Comba and recorded as a function of the apphed field (0-5 T), and at temperatures ranging from 2 to 300 K (zero field cooled method). The powdered samples were pressed into a PTEE band to avoid field-induced orientation of the... [Pg.17]

Krishnan method for the measurement of principal magnetic susceptibilities nuclear magnetic resonance pendulum magnetometer superconducting quantum interference device magnetometer vibrating-sample magnetometer... [Pg.35]