An experimental researcher whose work with M. Tinkham measured how thin superconducting films transmit radiation of different frequencies. Extracting their complex electrical conductivity revealed the onset of absorption above an energy threshold. That threshold supplied evidence for a superconducting energy gap, connecting optical response with the spectrum of allowed electronic excitations.^[ref]

Institutional source issuer.

A researcher whose joint work with Clifford Glenwood Shull connected antiferromagnetism with neutron diffraction. Opposing magnetic sublattices can cancel the bulk magnetization while still producing a magnetic scattering pattern. The experiment therefore made ordered internal magnetism observable even when a simple measurement of net magnetization would miss it.^[ref]

F. Plunian coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

P. Cardin coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

N. Schaeffer coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

H.-C. Nataf coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

Z. Tigrine coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

Andrey Sheyko investigated rotating magnetohydrodynamics in a spherical shell using a spectral method. His thesis varied boundary conditions and control parameters in geodynamo models, supplied numerical benchmark solutions, and derived decay rates for magnetic fields in spherical geometries.^[ref]

Reported participating in microwave measurements of flash-lamp-induced ruby ground-state depletion during laser development. The first-person account describes the subsequent emission threshold and spectral narrowing of the ruby laser. ^[ref]

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An experimental physicist who developed low-temperature apparatus and studied atoms and molecules adsorbed on surfaces. At Washington he built a dilution refrigerator operating down to about 0.015 K, enabling measurements of thin helium, hydrogen and oxygen films. Combining thermodynamic measurements with neutron scattering helps reveal how confinement to a surface changes the behavior of matter.^[ref]

A physicist whose research developed thermoacoustics as a way to convert heat into sound and sound into cooling. A sound wave carries oscillations of pressure, temperature and displacement; arranging heat exchange at the appropriate stages lets those oscillations operate a heat engine or refrigerator. His theoretical and experimental work helped produce devices that transfer energy through an oscillating gas with few moving mechanical parts.^[ref]

An experimental physicist whose research measures turbulence, Rayleigh-Bénard convection and granular flow. Heating a fluid from below creates rising and sinking motion; rotation and container geometry then alter the patterns and heat transport. His measurements connect visible flow structures with quantitative transport properties, helping test theories of complex fluid motion under controlled laboratory conditions.^[ref]

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Institutional source issuer.