New applications for the world's smallest high-precision capacitance dilatometer and its stress-implementing counterpart

Abstract

We introduce a new stress dilatometer with exactly the same size and weight as the world's smallest miniature capacitance dilatometer (height x width x depth = 15 mmx14 mmx15 mm, weight: 12 g). To develop this new device, only a single part of the most recently developed mini-dilatometer, the so-called 'body', needs to be replaced. Therefore, the new mini dilatometer with an interchangeable body can be used for high-resolution measurements of thermal expansion and magnetostriction with and without large stress. We also report two novel applications of both mini-dilatometer cell types. Our new setup was installed for the first time in a cryogen-free system (PPMS DynaCool). The first new setup allows the rotation of both dilatometers in situ at any angle between -90 deg > μ > +90 deg in the temperature range from 320 K to 1.8 K. We also installed our mini-cells in a dilution refrigerator insert of a PPMS DynaCool, in which dilatometric measurements are now possible in the temperature range from 4 K to 0.06 K. Because of the limited sample space, such measurements could not be performed so far. For both new applications, we can resolve the impressive length changes to 0.01 A.

arXiv commentNew applications for the world's smallest high-precision capacitance dilatometer and its stress-implementing counterpart

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Cited by in corpus (6)

• Thermodynamic evidence for polaron stabilization inside the antiferromagnetic order of Eu${}_5$In${}_2$Sb${}_6$
• Braided Ising spin-tube physics in a purported kagome magnet
• 1/5 and 1/3 magnetization plateaux in the spin 1/2 chain system YbAlO3
• Electronic Phase Propagation Speed in BaFe${}_2$As${}_2$ Revealed by Dilatometry
• Magnetic phase diagram and spin Hamiltonian of antiferromagnet Cs${}_2$CoI${}_4$
• High-Resolution Capacitance Dilatometry of Microscopically Thin Samples Using a Miniature Dilatometer