R. G. Goodrich

Fermi surface of the heavy-fermion superconductor CeCoIn5: The de Haas–van Alphen effect in the normal state

Measurements of the de Haas - van Alphen effect in the normal state of the heavy Fermion superconductor CeCoIn5 have been carried out using a torque cantilever at temperatures ranging from 20 to 500 mK and in fields up to 18 tesla. Angular dependent measurements of the extremal Fermi surface areas reveal a more extreme two dimensional sheet than is found in either CeRhIn5 or CeIrIn5. The effective masses of the measured frequencies range from 9 to 20 m*/m0.

Electronic structure of CeRhIn 5 : de Haas–van Alphen and energy band calculations

The de Haas - van Alphen effect and energy band calculations are used to study angular dependent extremal areas and effective masses of the Fermi surface of the highly correlated antiferromagnetic material CeRhIn

Thick film chip resistors for use as low temperature thermometers

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Anomalous superconductivity and field-induced magnetism in CeCoIn 5

. The agreement between experiment and theory is reasonable for the areas measured with the field applied along the (100) axis of the tetragonal structure, but disagree in size for the areas observed for the field applied along the (001) axis where the antiferromagnetic spin alignment is occurring. Detailed comparisons between experiment and theory are given.

Magnetic-field dependence of the paramagnetic to the high-temperature magnetically ordered phase transition in CeB 6

Abstract We have measured the resistance and magnetoresistance of commercially produced thick film resistors in the range 80 K-15 mK and in fields up to 20 T. These resistors behave similarly to those produced by another manufacturer and characterized recently by a Japanese group. Between 2.5 and 0.1 K the resistance of a 1 kΩ resistor can be fit to R=A exp (B/T 1 4 ) . A 100 kΩ resistor appears to fit a similar expression between 1.6 and 6 K and fits a T −1 2 law from 8 to 80 K. These resistors are very stable upon thermal cycling, have a small magnetoresistance, and should be useful as thermometers over a wide temperature range.

Fermi-surface measurements on the low-carrier density ferromagnet Ca 1 − x La x B 6 and SrB 6

In the heavy fermion superconductor

De haas-Van Alphen measurements in Ba0.6K0.4BiO3

{\mathrm{CeCoIn}}_{5}

High magnetic field sensor using LaSb2

{(T}_{c}=2.3 \mathrm{K})

THERMODYNAMICS OF THE SUPERCONDUCTING PHASE TRANSITION IN BA0.6K0.4BIO3

the critical field is large, anisotropic, and displays hysteresis. The magnitude of the critical-field anisotropy in the