skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Remote surface optical phonon scattering in ferroelectric Ba0.6Sr0.4TiO3 gated graphene

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/5.0106939· OSTI ID:1962668

We report the effect of remote surface optical (RSO) phonon scattering on carrier mobility in monolayer graphene gated by ferroelectric oxide. We fabricate monolayer graphene transistors back-gated by epitaxial (001) Ba0.6Sr0.4TiO3 films, with field effect mobility up to 23 000 cm2 V–1 s–1 achieved. Switching ferroelectric polarization induces nonvolatile modulation of resistance and quantum Hall effect in graphene at low temperatures. Ellipsometry spectroscopy studies reveal four pairs of optical phonon modes in Ba0.6Sr0.4TiO3, from which we extract RSO phonon frequencies. The temperature dependence of resistivity in graphene can be well accounted for by considering the scattering from the intrinsic longitudinal acoustic phonon and the RSO phonon, with the latter dominated by the mode at 35.8 meV. Furthermore, our study reveals the room temperature mobility limit of ferroelectric-gated graphene transistors imposed by RSO phonon scattering.

Research Organization:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0016153; DMR-1710461
OSTI ID:
1962668
Alternate ID(s):
OSTI ID: 1893213
Journal Information:
Journal of Applied Physics, Vol. 132, Issue 15; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (44)

Epitaxial ferroelectric interfacial devices journal December 2021
Flexible graphene–PZT ferroelectric nonvolatile memory journal November 2013
Realization of a high mobility dual-gated graphene field-effect transistor with Al2O3 dielectric journal February 2009
Integrating functional oxides with graphene journal August 2012
Enhancement of Carrier Mobility in Semiconductor Nanostructures by Dielectric Engineering journal March 2007
Intrinsic and extrinsic performance limits of graphene devices on SiO2 journal March 2008
Substrate-limited electron dynamics in graphene journal May 2008
Lattice dynamics of orthorhombic NdGaO3 journal May 2019
Examining Graphene Field Effect Sensors for Ferroelectric Thin Film Studies journal August 2013
Emerging ferroelectric transistors with nanoscale channel materials: the possibilities, the limitations journal February 2016
Use of Negative Capacitance to Provide Voltage Amplification for Low Power Nanoscale Devices journal February 2008
Probing Charged Impurities in Suspended Graphene Using Raman Spectroscopy journal February 2009
Non-Ising and chiral ferroelectric domain walls revealed by nonlinear optical microscopy journal June 2017
Giant Transport Anisotropy in ReS2 Revealed via Nanoscale Conducting-Path Control journal September 2021
Effect of high- κ gate dielectrics on charge transport in graphene-based field effect transistors journal September 2010
Assembly of Close‐Packed Ferroelectric Polymer Nanowires via Interface‐Epitaxy with ReS 2 journal June 2021
Ferroelectric materials for neuromorphic computing journal September 2019
Graphene radio frequency receiver integrated circuit journal January 2014
Tuning and Persistent Switching of Graphene Plasmons on a Ferroelectric Substrate journal July 2015
Quantum scattering time and its implications on scattering sources in graphene journal December 2009
Electronic transport in two-dimensional graphene journal May 2011
Tuning the Effective Fine Structure Constant in Graphene: Opposing Effects of Dielectric Screening on Short- and Long-Range Potential Scattering journal October 2008
Mechanism for Current Saturation and Energy Dissipation in Graphene Transistors journal June 2010
Deposition of High-Quality HfO 2 on Graphene and the Effect of Remote Oxide Phonon Scattering journal September 2010
Ferroelectric negative capacitance journal March 2019
High-Mobility Few-Layer Graphene Field Effect Transistors Fabricated on Epitaxial Ferroelectric Gate Oxides journal April 2009
Optical properties of bulk and thin-film SrTiO[sub 3] on Si and Pt
  • Zollner, Stefan; Demkov, A. A.; Liu, R.
  • Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, Vol. 18, Issue 4 https://doi.org/10.1116/1.1303741
journal January 2000
Coexistence of ferroelectric and relaxor properties in epitaxial films of Ba1−xSrxTiO3 journal October 2004
100-GHz Transistors from Wafer-Scale Epitaxial Graphene journal February 2010
Invited Article: An integrated mid-infrared, far-infrared, and terahertz optical Hall effect instrument journal July 2014
Gate-controlled nonvolatile graphene-ferroelectric memory journal April 2009
Graphene Transistors: Status, Prospects, and Problems journal July 2013
Effective electron mobility in Si inversion layers in metal–oxide–semiconductor systems with a high-κ insulator: The role of remote phonon scattering journal November 2001
Inelastic scattering and current saturation in graphene journal May 2010
Graphene photonics and optoelectronics journal August 2010
Acoustic phonon scattering limited carrier mobility in two-dimensional extrinsic graphene journal March 2008
Empowering 2D nanoelectronics via ferroelectricity journal August 2020
Electron Beam Supercollimation in Graphene Superlattices journal September 2008
Observation of electron–hole puddles in graphene using a scanning single-electron transistor journal November 2007
Spectroscopic Ellipsometry book January 2007
Polarization-Dependent Electronic Transport in Graphene/Pb(Zr,Ti)O 3 Ferroelectric Field-Effect Transistors journal May 2017
Theory of interfacial plasmon-phonon scattering in supported graphene journal October 2012
Polar coupling enabled nonlinear optical filtering at MoS2/ferroelectric heterointerfaces journal March 2020
Optical phonon modes, static and high-frequency dielectric constants, and effective electron mass parameter in cubic In2O3 journal June 2021