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Measurement of the angle dependence of magnetostriction in pulsed magnetic fields using a piezoelectric strain gauge

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5038741· OSTI ID:1467283

In this paper, we present a high resolution method for measuring magnetostriction in millisecond pulsed magnetic fields at cryogenic temperatures with a sensitivity of 1.11×10-11/√Hz. The sample is bonded to a thin piezoelectric plate such that when the sample’s length changes, it strains the piezoelectric and induces a voltage change. This method is more sensitive than a fiber-Bragg grating method. It measures two axes simultaneously instead of one. The gauge is small and versatile, functioning in DC and millisecond pulsed magnetic fields. We demonstrate its use by measuring the magnetostriction of Ca3Co1.03Mn0.97O6 single crystals in pulsed magnetic fields. By comparing our data to new and previously published results from a fiber-Bragg grating magnetostriction setup, we confirm that this method detects magnetostriction effects. Lastly, we also demonstrate the small size and versatility of this technique by measuring angle dependence with respect to the applied magnetic field in a rotator probe in 65 T millisecond pulsed magnetic fields.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396; FG02-07ER46382
OSTI ID:
1467283
Report Number(s):
LA-UR--18-23958
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 8 Vol. 89; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

AC elastocaloric effect as a probe for thermodynamic signatures of continuous phase transitions journal August 2019

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