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Title: Full electroresistance modulation in a mixed-phase metallic alloy

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [3];  [3];  [4];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [5]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of California, Berkeley, CA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of California, Berkeley, CA (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  5. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

We report a giant, ~22%, electroresistance modulation for a metallic alloy above room temperature. It is achieved by a small electric field of 2 kV/cm via piezoelectric strain-mediated magnetoelectric coupling and the resulting magnetic phase transition in epitaxial FeRh/BaTiO3 heterostructures. This work presents detailed experimental evidence for an isothermal magnetic phase transition driven by tetragonality modulation in FeRh thin films, which is in contrast to the large volume expansion in the conventional temperature-driven magnetic phase transition in FeRh. Furthermore, all the experimental results in this work illustrate FeRh as a mixed-phase model system well similar to phase-separated colossal magnetoresistance systems with phase instability therein.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; SC0002136
OSTI ID:
1266024
Alternate ID(s):
OSTI ID: 1240216
Journal Information:
Physical Review Letters, Vol. 116, Issue 9; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 83 works
Citation information provided by
Web of Science

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Cited By (29)

Electric‐Field‐Controlled Antiferromagnetic Spintronic Devices journal March 2020
Electric-Field Control of Magnetic Order: From FeRh to Topological Antiferromagnetic Spintronics journal November 2018
Reversible Modification of Ferromagnetism through Electrically Controlled Morphology journal April 2019
Antiferromagnetic Piezospintronics journal April 2019
Nonvolatile Electric Control of the Anomalous Hall Effect in an Ultrathin Magnetic Metal journal December 2019
Noncollinear spintronics and electric-field control: a review journal December 2019
Absence of superconductivity in Nd0.8Sr0.2NiOx thin films without chemical reduction journal March 2020
Tunneling anisotropic magnetoresistance driven by magnetic phase transition journal September 2017
Electrically reversible cracks in an intermetallic film controlled by an electric field journal January 2018
Spin pumping during the antiferromagnetic–ferromagnetic phase transition of iron–rhodium journal January 2020
A piezoelectric, strain-controlled antiferromagnetic memory insensitive to magnetic fields journal January 2019
Electric field control of magnetization direction across the antiferromagnetic to ferromagnetic transition journal July 2017
Electrical switching of the topological anomalous Hall effect in a non-collinear antiferromagnet above room temperature journal March 2018
Electric field tuning of magnetocaloric effect in FeRh 0.96 Pd 0.04 /PMN-PT composite near room temperature journal May 2017
Thermal diodes, regulators, and switches: Physical mechanisms and potential applications journal December 2017
Electric field control of magnetic properties in FeRh/PMN-PT heterostructures journal May 2018
Reversible and magnetically unassisted voltage-driven switching of magnetization in FeRh/PMN-PT journal October 2018
Structural, magnetic, and transport properties of Fe 1− x Rh x /MgO(001) films grown by molecular-beam epitaxy journal August 2018
Strain controlling transport properties of heterostructure composed of monolayer CrI 3 journal May 2019
Strain and voltage control of magnetic and electric properties of FeRh films journal October 2019
Room-temperature electric field modulation of magnetization in a helimagnet journal October 2019
Modeling the thickness dependence of the magnetic phase transition temperature in thin FeRh films journal February 2017
Antiferromagnetic-ferromagnetic phase domain development in nanopatterned FeRh islands journal October 2018
Frontiers in strain-engineered multifunctional ferroic materials journal August 2016
Antiferromagnetic-ferromagnetic phase domain development in nanopatterned FeRh islands text January 2018
Electric-Field Control of Magnetic Order: From FeRh to Topological Antiferromagnetic Spintronics text January 2018
A Piezoelectric, Strain-Controlled Antiferromagnetic Memory Insensitive to Magnetic Fields text January 2019
Imaging uncompensated moments and exchange-biased emergent ferromagnetism in FeRh thin films text January 2019
Strain and voltage control of magnetic and electric properties of FeRh films text January 2019

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