Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Low-temperature nanoscale heat transport in a gadolinium iron garnet heterostructure probed by ultrafast x-ray diffraction

Journal Article · · Structural Dynamics
DOI:https://doi.org/10.1063/4.0000154· OSTI ID:2565460

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.

Research Organization:
Argonne National Laboratory (ANL), Lemont, IL (United States)
Sponsoring Organization:
Knut and Alice Wallenberg Foundation; Swedish Research Council; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357; FG02-04ER46147
OSTI ID:
2565460
Alternate ID(s):
OSTI ID: 1878432
OSTI ID: 1959992
Journal Information:
Structural Dynamics, Journal Name: Structural Dynamics Journal Issue: 4 Vol. 9; ISSN 2329-7778
Publisher:
American Institute of PhysicsCopyright Statement
Country of Publication:
United States
Language:
English

References (41)

The Thermal Conductivity of Monocrystalline Gallium Garnets Doped with Rare-Earth Elements and Chromium in the Range 6–300 K journal January 1992
The properties of crystals with garnet structure journal December 1985
Notes on using temperature-dependent thermal diffusivity—forgotten rules journal January 2018
Reflectance spectra of extreme ultraviolet mirrors for synchrotron radiation
  • Sugawara, Hidenao; Sato, Shigeru; Miyahara, Tsuneaki
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 228, Issue 2-3 https://doi.org/10.1016/0168-9002(85)90303-1
journal January 1985
Thermodynamic properties of the gadolinium gallium garnet, Gd3Ga5O12, between 0.05 and 25 K journal June 1982
Magnetic structures and magnetoelastic phenomena observed in Tb3GaxFe5−xO12 garnets journal December 1984
Origin of the spin Seebeck effect in compensated ferrimagnets journal February 2016
Optical excitation of thin magnetic layers in multilayer structures journal January 2014
Longitudinal spin Seebeck coefficient: heat flux vs. temperature difference method journal April 2017
Maximization of thermal conductance at interfaces via exponentially mass-graded interlayers journal January 2019
Nanoscale thermal transport journal January 2003
Effect of Magnons on Thermal Transport in Insulators journal March 1969
Optical Absorption in Gadolinium Iron Garnet in the Region 2000–5000 Å journal May 1969
Specific Heat of Some Rare Earth Iron Garnets and YIG at Low Temperatures journal May 1960
The c-axis thermal conductivity of graphite film of nanometer thickness measured by time resolved X-ray diffraction journal December 2012
Nanoscale thermal transport. II. 2003–2012 journal March 2014
Heat transport by phonon tunneling across layered structures used in heat assisted magnetic recording journal March 2015
Real-time observation of coherent acoustic phonons generated by an acoustically mismatched optoacoustic transducer using x-ray diffraction journal November 2015
Thermal boundary resistance of mechanical contacts between solids at sub-ambient temperatures journal January 1999
On the interfacial thermal conductance of a ferromagnetic metal junction journal June 2018
Nanoscale heat transport studied by high-resolution time-resolved x-ray diffraction journal September 2011
Optical Properties of Platinum journal July 1968
Surface generation and detection of phonons by picosecond light pulses journal September 1986
Kapitza conductance and heat flow between solids at temperatures from 50 to 300 K journal December 1993
Thermal conductance of epitaxial interfaces journal February 2003
Thermal transport in a semiconductor heterostructure measured by time-resolved x-ray diffraction journal July 2008
Enhancing and tuning phonon transport at vibrationally mismatched solid-solid interfaces journal January 2012
Thermal boundary conductance across rough interfaces probed by molecular dynamics journal February 2014
Influence of the thermal interface resistance on the thermovoltage of a magnetic tunnel junction journal March 2017
Concomitant enhancement of the longitudinal spin Seebeck effect and the thermal conductivity in a Pt/YIG/Pt system at low temperatures journal May 2017
Design rules for interfacial thermal conductance: Building better bridges journal May 2017
Thermal Transport and Nonequilibrium Temperature Drop Across a Magnetic Tunnel Junction journal July 2015
Thermal boundary resistance journal July 1989
Angle and index calculations for ` z -axis' X-ray diffractometer journal February 1985
A (2+3)-Type Surface Diffractometer: Mergence of the z-Axis and (2+2)-Type Geometries journal April 1998
FemtoMAX – an X-ray beamline for structural dynamics at the short-pulse facility of MAX IV journal February 2018
Resonant nanodiffraction x-ray imaging reveals role of magnetic domains in complex oxide spin caloritronics journal October 2020
Thermal and Electrical Conductivity of Rhodium, Iridium, and Platinum journal March 1957
Optical properties of gadolinium gallium garnet journal January 1990
Nanoscale thermal transport aspects of heat-assisted magnetic recording devices and materials journal February 2018
The Thermodynamic Properties of Platinum on ITS-90 journal July 1994

Similar Records

Interfacial magnetic characteristics of nearly compensated gadolinium iron garnet
Journal Article · Thu Apr 04 20:00:00 EDT 2024 · Physical Review Materials · OSTI ID:2569729

Related Subjects