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Low-temperature nan...
Low-temperature nanoscale heat transport in a gadolinium iron garnet heterostructure probed by ultrafast x-ray diffraction
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- Gyan, D. S. (author)
- University of Wisconsin-Madison
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- Mannix, Danny (author)
- European Spallation Source ERIC, Denmark,Aarhus University,University Grenoble Alpes
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- Carbone, Dina (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Larsson, Jörgen (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Avancerade ljuskällor,LTH profilområden,MAX IV Laboratory,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,LTH Profile areas,Faculty of Engineering, LTH
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- Geprags, S. (author)
- Walther-Meissner-Institut
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- Dietlein, M. (author)
- Walther-Meissner-Institut,Technical University of Munich
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- Gross, R. (author)
- Technical University of Munich,Munich Center for Quantum Science and Technology (MCQST),Walther-Meissner-Institut
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- Jurgilaitis, Andrius (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,LTH profilområde: Avancerade ljuskällor,LTH profilområden,Lunds Tekniska Högskola,MAX IV Laboratory,LTH Profile Area: Photon Science and Technology,LTH Profile areas,Faculty of Engineering, LTH
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- Pham, Van Thai (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,LTH profilområde: Avancerade ljuskällor,LTH profilområden,Lunds Tekniska Högskola,MAX IV Laboratory,LTH Profile Area: Photon Science and Technology,LTH Profile areas,Faculty of Engineering, LTH
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- Coudert-Alteirac, Hélène (author)
- University of Gothenburg,Lund University,Lunds universitet,Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),MAX IV-laboratoriet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,MAX IV Laboratory,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Larsson, J. (author)
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- Haskel, D. (author)
- Argonne National Laboratory
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- Strempfer, J. (author)
- Argonne National Laboratory
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- Evans, P. G. (author)
- University of Wisconsin-Madison
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(creator_code:org_t)
- AIP Publishing, 2022
- 2022
- English.
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In: Structural Dynamics-Us. - : AIP Publishing. - 2329-7778. ; 9:4
- Related links:
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http://dx.doi.org/10... (free)
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https://gup.ub.gu.se...
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Abstract
Subject headings
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- Time-resolved x-ray diffraction has been used to measure the low-temperature thermal transport properties of a Pt/Gd3Fe5O12//Gd3Ga5O12 metal/oxide heterostructure relevant to applications in spin caloritronics. A pulsed femtosecond optical signal produces a rapid temperature rise in the Pt layer, followed by heat transport into the Gd3Fe5O12 (GdIG) thin film and the Gd3Ga5O12 (GGG) substrate. The time dependence of x-ray diffraction from the GdIG layer was tracked using an accelerator-based femtosecond x-ray source. The ultrafast diffraction measurements probed the intensity of the GdIG (1 -1 2) x-ray reflection in a grazing-incidence x-ray diffraction geometry. The comparison of the variation of the diffracted x-ray intensity with a model including heat transport and the temperature dependence of the GdIG lattice parameter allows the thermal conductance of the Pt/GdIG and GdIG//GGG interfaces to be determined. Complementary synchrotron x-ray diffraction studies of the low-temperature thermal expansion properties of the GdIG layer provide a precise calibration of the temperature dependence of the GdIG lattice parameter. The interfacial thermal conductance of the Pt/GdIG and GdIG//GGG interfaces determined from the time-resolved diffraction study is of the same order of magnitude as previous reports for metal/oxide and epitaxial dielectric interfaces. The thermal parameters of the Pt/GdIG//GGG heterostructure will aid in the design and implementation of thermal transport devices and nanostructures. (C) 2022 Author(s).
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- optical-properties
- thermal transport
- z-axis
- conductivity
- crystals
- solids
- Chemistry
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Gyan, D. S.
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Mannix, Danny
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Carbone, Dina
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Larsson, Jörgen
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Geprags, S.
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Dietlein, M.
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Gross, R.
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Jurgilaitis, And ...
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Pham, Van Thai
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Coudert-Alteirac ...
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Larsson, J.
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Haskel, D.
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Strempfer, J.
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Evans, P. G.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Structural Dynam ...
- By the university
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University of Gothenburg
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Lund University