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

Structural phase purification of bulk HfO 2 :Y through pressure cycling

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [3];  [4];  [5];  [5];  [6];  [7];  [7]
  1. Department of Chemistry, University of Tennessee, Knoxville, TN 37996, Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996
  2. Department of Mechanical Engineering, University of Rochester, Rochester, NY 14627, Materials Science Program, University of Rochester, Rochester, NY 14627
  3. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973
  4. Department of Chemistry, University of Tennessee, Knoxville, TN 37996
  5. Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, Rutgers Center for Emergent Materials, Rutgers University, Piscataway, NJ 08854
  6. Department of Physics, University of Illinois, Chicago, IL 60607-7059
  7. Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854

We combine synchrotron-based infrared absorption and Raman scattering spectroscopies with diamond anvil cell techniques and first-principles calculations to explore the properties of hafnia under compression. We find that pressure drives HfO 2 :7%Y from the mixed monoclinic ( P 2 1 / c ) + antipolar orthorhombic ( Pbca ) phase to pure antipolar orthorhombic ( Pbca ) phase at approximately 6.3 GPa. This transformation is irreversible, meaning that upon release, the material is kinetically trapped in the Pbca metastable state at 300 K. Compression also drives polar orthorhombic ( P c a 2 1 ) hafnia into the tetragonal ( P 4 2 / n m c ) phase, although the latter is not metastable upon release. These results are unified by an analysis of the energy landscape. The fact that pressure allows us to stabilize targeted metastable structures with less Y stabilizer is important to preserving the flat phonon band physics of pure HfO 2 .

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0023144; NA0003975
OSTI ID:
2282781
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 5 Vol. 121; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

References (48)

Giant Negative Electrocaloric Effects of Hf 0.5 Zr 0.5 O 2 Thin Films journal July 2016
Direct Observations of Nanofilament Evolution in Switching Processes in HfO 2 -Based Resistive Random Access Memory by In Situ TEM Studies journal January 2017
Antiferroelectrics for Energy Storage Applications: a Review journal July 2018
Wake‐Up Effect in HfO 2 ‐Based Ferroelectric Films journal November 2020
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Progress and perspective on different strategies to achieve wake-up-free ferroelectric hafnia and zirconia-based thin films journal March 2022
Study of structural phase transition of HfO 2 at high pressure journal January 2016
Unexpectedly low barrier of ferroelectric switching in HfO2 via topological domain walls journal November 2021
First principles phonon calculations in materials science journal November 2015
Epitaxial Ferroelectric HfO2 Films: Growth, Properties, and Devices journal April 2021
Impact of La Concentration on Ferroelectricity of La-Doped HfO2 Epitaxial Thin Films journal October 2021
Phase Control in Hafnia: New Synthesis Approach and Convergence of Average and Local Structure Properties journal May 2019
Calibration of the ruby pressure gauge to 800 kbar under quasi-hydrostatic conditions journal January 1986
Real-time atomistic observation of structural phase transformations in individual hafnia nanorods journal May 2017
A highly CMOS compatible hafnia-based ferroelectric diode journal March 2020
Piezoelectricity in hafnia journal December 2021
Reversible transition between the polar and antipolar phases and its implications for wake-up and fatigue in HfO2-based ferroelectric thin film journal February 2022
Vibrational fingerprints of ferroelectric HfO2 journal March 2022
Kinetically stabilized ferroelectricity in bulk single-crystalline HfO2:Y journal January 2021
Ferroelectricity in bulk hafnia journal January 2021
Intrinsic ferroelectricity in Y-doped HfO2 thin films journal June 2022
The fundamentals and applications of ferroelectric HfO2 journal March 2022
Ultrathin ferroic HfO2–ZrO2 superlattice gate stack for advanced transistors journal April 2022
Lattice dynamics of the tin sulphides SnS 2 , SnS and Sn 2 S 3 : vibrational spectra and thermal transport journal January 2017
Specific volume measurements of Cu, Mo, Pd, and Ag and calibration of the ruby R 1 fluorescence pressure gauge from 0.06 to 1 Mbar journal June 1978
Ferroelectricity in hafnium oxide thin films journal September 2011
Nanoscopic studies of domain structure dynamics in ferroelectric La:HfO 2 capacitors journal May 2018
Perspective on ferroelectric, hafnium oxide based transistors for digital beyond von-Neumann computing journal February 2021
Using Raman spectroscopy and x-ray diffraction for phase determination in ferroelectric mixed Hf1−xZrxO2-based layers journal December 2022
Bilbao Crystallographic Server : Useful Databases and Tools for Phase-Transition Studies journal January 2003
Phase competition in HfO 2 with applied electric field from first principles journal December 2020
Special points for Brillouin-zone integrations journal June 1976
Pressure-induced phase transformations in HfO 2 to 50 GPa studied by Raman spectroscopy journal October 1993
Pressure-induced phase transitions and volume changes in HfO 2 up to 50 GPa journal July 1993
Projector augmented-wave method journal December 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
High-density ZrO 2 and HfO 2 : Crystalline structures and equations of state journal April 1999
First-principles study of the structural phase transformation of hafnia under pressure journal August 2003
Phase diagram up to 105 GPa and mechanical strength of HfO 2 journal October 2010
Pathways towards ferroelectricity in hafnia journal August 2014
Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces journal April 2008
Stabilization of Competing Ferroelectric Phases of HfO 2 under Epitaxial Strain journal December 2020
Trilinear-coupling-driven ferroelectricity in HfO 2 journal June 2021
Stabilizing polar phases in binary metal oxides by hole doping journal April 2023
Pressure-Induced Phase Transformation of HfO2 journal April 1992
Phase Relations and Volume Changes of Hafnia under High Pressure and High Temperature journal June 2001
Scale-free ferroelectricity induced by flat phonon bands in HfO 2 journal July 2020

Similar Records

Resolving the dynamic correlated disorder in KTa 1− x Nb x O 3
Journal Article · Sun Feb 09 23:00:00 EST 2025 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:2513569

Low leakage current in heteroepitaxial Al 0.7 Sc 0.3 N ferroelectric films on Ga N
Journal Article · Thu Jan 16 23:00:00 EST 2025 · Physical Review Applied · OSTI ID:2502112

Re-investigation of moment direction in a Kitaev material α -RuCl 3
Journal Article · Tue May 06 00:00:00 EDT 2025 · Journal of Physics. Condensed Matter · OSTI ID:2564754

Related Subjects