DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Metallic ferromagnetic films with magnetic damping under 1.4 × 10-3

Journal Article · · Nature Communications
 [1];  [2];  [2];  [2];  [2]; ORCiD logo [3];  [3];  [2]; ORCiD logo [2]
  1. The Ohio State Univ., Columbus, OH (United States). Dept. of Physics; The Ohio State University
  2. The Ohio State Univ., Columbus, OH (United States). Dept. of Physics
  3. The Ohio State Univ., Columbus, OH (United States). Center for Electron Microscopy and Analysis and Dept. of Materials Science and Engineering

Low-damping magnetic materials have been widely used in microwave and spintronic applications because of their low energy loss and high sensitivity. While the Gilbert damping constant can reach 10-4 to 10-5 in some insulating ferromagnets, metallic ferromagnets generally have larger damping due to magnon scattering by conduction electrons. Meanwhile, low-damping metallic ferromagnets are desired for charge-based spintronic devices. In this article, we report the growth of Co25Fe75 epitaxial films with excellent crystalline quality evident by the clear Laue oscillations and exceptionally narrow rocking curve in the X-ray diffraction scans as well as from scanning transmission electron microscopy. Remarkably, the Co25Fe75 epitaxial films exhibit a damping constant <1.4 × 10-3, which is comparable to the values for some high-quality Y3Fe5O12 films. This record low damping for metallic ferromagnets offers new opportunities for charge-based applications such as spin-transfer-torque-induced switching and magnetic oscillations.

Research Organization:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
Grant/Contract Number:
FG02-03ER46054
OSTI ID:
1429491
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 8; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (45)

Gilbert damping and g-factor in FexCo1−x alloy films journal March 1995
Longitudinal spin Seebeck effect contribution in transverse spin Seebeck effect experiments in Pt/YIG and Pt/NFO journal September 2015
Ultra-low magnetic damping of a metallic ferromagnet journal May 2016
Perpendicular magnetization reversal, magnetic anisotropy, multistep spin switching, and domain nucleation and expansion in Ga1−xMnxAs films journal September 2005
Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods journal May 2006
Conversion of spin current into charge current at room temperature: Inverse spin-Hall effect journal May 2006
Low damping in epitaxial sputtered iron films journal June 2006
Ferromagnetic resonance and damping properties of CoFeB thin films as free layers in MgO-based magnetic tunnel junctions journal August 2011
Growth and ferromagnetic resonance properties of nanometer-thick yttrium iron garnet films journal October 2012
Inverse spin Hall effect in nanometer-thick yttrium iron garnet/Pt system journal August 2013
Induced magneto-transport properties at palladium/yttrium iron garnet interface journal September 2013
Epitaxial films of Heusler compound Co 2 FeAl 0.5 Si 0.5 with high crystalline quality grown by off-axis sputtering journal October 2013
Y 3 Fe 5 O 12 spin pumping for quantitative understanding of pure spin transport and spin Hall effect in a broad range of materials (invited) journal May 2015
YIG magnonics journal June 2010
Ferromagnetic resonance of ultrathin metallic layers journal July 1998
Detection and quantification of inverse spin Hall effect from spin pumping in permalloy/normal metal bilayers journal December 2010
Fully ordered Sr 2 CrReO 6 epitaxial films: A high-temperature ferrimagnetic semiconductor journal April 2012
First-principles calculation of the Gilbert damping parameter via the linear response formalism with application to magnetic transition metals and alloys journal January 2013
Large spin pumping from epitaxial Y 3 Fe 5 O 12 thin films to Pt and W layers journal September 2013
Systematic variation of spin-orbit coupling with d -orbital filling: Large inverse spin Hall effect in 3 d transition metals journal October 2014
Transverse dynamical magnetic susceptibilities from regular static density functional theory: Evaluation of damping and g shifts of spin excitations journal March 2015
Spin Seebeck effect through antiferromagnetic NiO journal July 2016
Thickness dependence of spin Hall angle of Au grown on Y 3 F e 5 O 12 epitaxial films journal August 2016
Spin Pumping at the Magnetic Insulator (YIG)/Normal Metal (Au) Interfaces journal August 2011
Intrinsic Spin Seebeck Effect in Au / YIG journal February 2013
Spin-Pump-Induced Spin Transport in p -Type Si at Room Temperature journal March 2013
Control of Magnetocrystalline Anisotropy by Epitaxial Strain in Double Perovskite Sr 2 FeMoO 6 Films journal April 2013
Damping in Yttrium Iron Garnet Nanoscale Films Capped by Platinum journal September 2013
Antiferromagnonic Spin Transport from Y 3 Fe 5 O 12 into NiO journal August 2014
Robust Zero-Field Skyrmion Formation in FeGe Epitaxial Thin Films journal January 2017
Electrical Detection of Spin Pumping due to the Precessing Magnetization of a Single Ferromagnet journal November 2006
Low Relaxation Rate in Epitaxial Vanadium-Doped Ultrathin Iron Films journal March 2007
Spin-Torque Switching with the Giant Spin Hall Effect of Tantalum journal May 2012
Current-Induced Switching of Domains in Magnetic Multilayer Devices journal August 1999
Determination of Penetration Depth of Transverse Spin Current in Ferromagnetic Metals by Spin Pumping journal March 2008
Magnetic Damping in Ferromagnetic Thin Films journal May 2006
Determination of Penetration Depth of Transverse Spin Current in Ferromagnetic Metals by Spin Pumping text January 2007
Detection and quantification of inverse spin Hall effect from spin pumping in permalloy/normal metal bilayers text January 2010
Large Spin Pumping from Epitaxial Y3Fe5O12 Thin Films to Pt and W Layers text January 2013
Induced magneto-transport properties at palladium/yttrium iron garnet interface text January 2013
Y3Fe5O12 Spin Pumping for Quantitative Understanding of Pure Spin Transport and Spin Hall Effect in a Broad Range of Materials text January 2014
Transverse dynamical magnetic susceptibilities from regular static density functional theory: Evaluation of damping and g-shifts of spin-excitations text January 2014
Ultra-low magnetic damping of a metallic ferromagnet text January 2015
Robust Zero-Field Skyrmion Formation in FeGe Epitaxial Thin Films text January 2016
Perpendicular magnetization reversal, magnetic anisotropy, multi-step spin switching, and domain nucleation and expansion in Ga1-xMnxAs films text January 2005

Cited By (21)

Ferromagnet/Superconductor Hybrid Magnonic Metamaterials journal June 2019
Switching of biaxial synthetic antiferromagnets: A micromagentic study journal December 2018
Thickness and angular dependent ferromagnetic resonance of ultra-low damping Co 25 Fe 75 epitaxial films journal December 2018
Epitaxial Co 50 Fe 50 (110)/Pt(111) films on MgAl 2 O 4 (001) and its enhancement of perpendicular magnetic anisotropy journal May 2019
Compositional dependence of Gilbert damping constant of epitaxial Fe 100– x Rh x thin films journal September 2019
FMR-driven spin pumping in Y 3 Fe 5 O 12 -based structures journal May 2018
Gilbert damping of CoFe-alloys journal June 2019
Ferromagnetic resonance studies of strain tuned Bi:YIG films journal July 2019
Tuning non-Gilbert-type damping in FeGa films on MgO(001) via oblique deposition journal December 2019
High-temperature Magnetodielectric Bi ( Fe 0.5 Mn 0.5 ) O 3 Thin Films with Checkerboard-Ordered Oxygen Vacancies and Low Magnetic Damping journal November 2018
Co 25 Fe 75 Thin Films with Ultralow Total Damping of Ferromagnetic Resonance journal May 2019
Far-Infrared Reflection from Heterostructures Made of Ultrathin Ferromagnetic Layers journal August 2019
Magnetostriction, Soft Magnetism, and Microwave Properties in Co − Fe − C Alloy Films journal September 2019
Nonreciprocal Surface Acoustic Waves in Multilayers with Magnetoelastic and Interfacial Dzyaloshinskii-Moriya Interactions journal June 2018
Gilbert damping in FeCo alloy: From weak to strong spin disorder journal November 2018
Giant Anisotropy of Gilbert Damping in Epitaxial CoFe Films journal March 2019
Evidence of the Topological Hall Effect in Pt/Antiferromagnetic Insulator Bilayers journal December 2019
Electrical Switching of Tristate Antiferromagnetic Néel Order in α − Fe 2 O 3 Epitaxial Films journal January 2020
Gilbert damping of CoFe-alloys text January 2019
Ferromagnetic Resonance Studies of Strain tuned Bi:YIG Films text January 2019
Tuning Non-Gilbert-type damping in FeGa films on MgO(001) via oblique deposition preprint January 2019