Temperature Measurement by a Nanoscale Electron Probe Using Energy Gain and Loss Spectroscopy

Juan Carlos Idrobo; Andrew R. Lupini; Tianli Feng; Raymond R. Unocic; Franklin S. Walden; Daniel S. Gardiner; Tracy C. Lovejoy; Niklas Dellby; Sokrates T. Pantelides; Ondrej L. Krivanek

doi:10.1103/PhysRevLett.120.095901

Temperature Measurement by a Nanoscale Electron Probe Using Energy Gain and Loss Spectroscopy

Juan Carlos Idrobo
, Andrew R. Lupini
, Tianli Feng
, Raymond R. Unocic
, Franklin S. Walden
, Daniel S. Gardiner
, Tracy C. Lovejoy
, Niklas Dellby
, Sokrates T. Pantelides
, Ondrej L. Krivanek

Research output: Contribution to journal › Article › peer-review

122 Scopus citations

Abstract

Heat dissipation in integrated nanoscale devices is a major issue that requires the development of nanoscale temperature probes. Here, we report the implementation of a method that combines electron energy gain and loss spectroscopy to provide a direct measurement of the local temperature in the nanoenvironment. Loss and gain peaks corresponding to an optical-phonon mode in boron nitride were measured from room temperature to ∼1600 K. Both loss and gain peaks exhibit a shift towards lower energies as the sample is heated up. First-principles calculations of the temperature-induced phonon frequency shifts provide insights into the origin of this effect and confirm the experimental data. The experiments and theory presented here open the doors to the study of anharmonic effects in materials by directly probing phonons in the electron microscope.

Original language	English
Article number	095901
Journal	Physical Review Letters
Volume	120
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.120.095901
State	Published - Mar 2 2018

Funding

This research was supported by the Center for Nanophase Materials Sciences, which is a Department of Energy Office of Science User Facility (J. C. I. and R. R. U.), and by the Materials Sciences and Engineering Division Office of Basic Energy Sciences, U.S. Department of Energy (A. R. L.). This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, and instrumentation within ORNL’s Materials Characterization Core provided by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. This work used the Extreme Science and Engineering Discovery Environment (XSEDE). Theoretical work at Vanderbilt University was supported by DOE Award No. DE-FG02-09ER46554 and by the McMinn Endowment (T. L. F. and S. T. P.). J. C. I. acknowledges Michael Manley at ORNL for useful discussions, and Hye Jung Chang, Hans Christen, Robert Klie, Karren More, and Ján Rusz for input with the manuscript.

Access to Document

10.1103/PhysRevLett.120.095901

Cite this

@article{58bc99650f5641f6962a89d987d31e35,

title = "Temperature Measurement by a Nanoscale Electron Probe Using Energy Gain and Loss Spectroscopy",

abstract = "Heat dissipation in integrated nanoscale devices is a major issue that requires the development of nanoscale temperature probes. Here, we report the implementation of a method that combines electron energy gain and loss spectroscopy to provide a direct measurement of the local temperature in the nanoenvironment. Loss and gain peaks corresponding to an optical-phonon mode in boron nitride were measured from room temperature to ∼1600 K. Both loss and gain peaks exhibit a shift towards lower energies as the sample is heated up. First-principles calculations of the temperature-induced phonon frequency shifts provide insights into the origin of this effect and confirm the experimental data. The experiments and theory presented here open the doors to the study of anharmonic effects in materials by directly probing phonons in the electron microscope.",

author = "Idrobo, \{Juan Carlos\} and Lupini, \{Andrew R.\} and Tianli Feng and Unocic, \{Raymond R.\} and Walden, \{Franklin S.\} and Gardiner, \{Daniel S.\} and Lovejoy, \{Tracy C.\} and Niklas Dellby and Pantelides, \{Sokrates T.\} and Krivanek, \{Ondrej L.\}",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = mar,

day = "2",

doi = "10.1103/PhysRevLett.120.095901",

language = "English",

volume = "120",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - Temperature Measurement by a Nanoscale Electron Probe Using Energy Gain and Loss Spectroscopy

AU - Idrobo, Juan Carlos

AU - Lupini, Andrew R.

AU - Feng, Tianli

AU - Unocic, Raymond R.

AU - Walden, Franklin S.

AU - Gardiner, Daniel S.

AU - Lovejoy, Tracy C.

AU - Dellby, Niklas

AU - Pantelides, Sokrates T.

AU - Krivanek, Ondrej L.

PY - 2018/3/2

Y1 - 2018/3/2

N2 - Heat dissipation in integrated nanoscale devices is a major issue that requires the development of nanoscale temperature probes. Here, we report the implementation of a method that combines electron energy gain and loss spectroscopy to provide a direct measurement of the local temperature in the nanoenvironment. Loss and gain peaks corresponding to an optical-phonon mode in boron nitride were measured from room temperature to ∼1600 K. Both loss and gain peaks exhibit a shift towards lower energies as the sample is heated up. First-principles calculations of the temperature-induced phonon frequency shifts provide insights into the origin of this effect and confirm the experimental data. The experiments and theory presented here open the doors to the study of anharmonic effects in materials by directly probing phonons in the electron microscope.

AB - Heat dissipation in integrated nanoscale devices is a major issue that requires the development of nanoscale temperature probes. Here, we report the implementation of a method that combines electron energy gain and loss spectroscopy to provide a direct measurement of the local temperature in the nanoenvironment. Loss and gain peaks corresponding to an optical-phonon mode in boron nitride were measured from room temperature to ∼1600 K. Both loss and gain peaks exhibit a shift towards lower energies as the sample is heated up. First-principles calculations of the temperature-induced phonon frequency shifts provide insights into the origin of this effect and confirm the experimental data. The experiments and theory presented here open the doors to the study of anharmonic effects in materials by directly probing phonons in the electron microscope.

UR - https://www.scopus.com/pages/publications/85042856201

U2 - 10.1103/PhysRevLett.120.095901

DO - 10.1103/PhysRevLett.120.095901

M3 - Article

C2 - 29547334

AN - SCOPUS:85042856201

SN - 0031-9007

VL - 120

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

M1 - 095901

ER -

Temperature Measurement by a Nanoscale Electron Probe Using Energy Gain and Loss Spectroscopy

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this