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Micromechanical "Trampoline" magnetometers for use in large pulsed magnetic fields
1V. Aksyuk, P. L. Gammel, R. C. Haddon, D. J. Bishop, Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974, USA. F. F. Balakirev and G. S. Boebinger, Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974, USA, and.
Abstract:
A silicon micromechanical magnetometer was constructed and successfully used in 60-tesla pulsed magnetic fields of less than 100-millisecond duration. The device is small, inexpensive to fabricate, and easy to use. It features a fast mechanical response (up to 50,000 hertz) and extremely high sensitivity yet is relatively robust against electrical and mechanical noise. Quantum oscillations in the magnetization of a 1-microgram sample of an organic superconductor, kappa-[bis(ethylenedithio)tetrathiafulvalene]2Cu(NCS)2, have been observed with this device.