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Condensed Matter > Materials Science

arXiv:2004.04570 (cond-mat)
[Submitted on 9 Apr 2020]

Title:Diamagnetic-like response from localised heating of a paramagnetic material

Authors:Giordano Mattoni, Shingo Yonezawa, Yoshiteru Maeno
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Abstract:In the search of material properties out-of-equilibrium, the non-equilibrium steady states induced by electric current are an appealing research direction where unconventional states may emerge. However, the unavoidable Joule heating caused by flowing current calls for the development of new measurement protocols, with a particular attention to the physical properties of the background materials involved. Here, we demonstrate that localised heating can give rise to a large, spurious diamagnetic-like signal. This occurs due to the local reduction of the background magnetisation caused by the heated sample, provided that the background material has a Curie-like susceptibility. Our experimental results, along with numerical calculations, constitute an important building block for performing accurate magnetic measurements under the flow of electric current.
Subjects: Materials Science (cond-mat.mtrl-sci); Instrumentation and Detectors (physics.ins-det)
Cite as: arXiv:2004.04570 [cond-mat.mtrl-sci]
  (or arXiv:2004.04570v1 [cond-mat.mtrl-sci] for this version)
  https://doi.org/10.48550/arXiv.2004.04570
Journal reference: Appl. Phys. Lett. 116, 172405 (2020)
Related DOI: https://doi.org/10.1063/5.0006098

Submission history

From: Giordano Mattoni [view email]
[v1] Thu, 9 Apr 2020 14:43:58 UTC (1,264 KB)
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