Abstract
Low-loss magnetization dynamics and strong magnetoelastic coupling are generally mutually exclusive properties due to opposing dependencies on spin–orbit interactions. So far, the lack of low-damping, magnetostrictive ferrite films has hindered the development of power-efficient magnetoelectric and acoustic spintronic devices. Here, magnetically soft epitaxial spinel NiZnAl-ferrite thin films with an unusually low Gilbert damping parameter (<3 × 10−3), as well as strong magnetoelastic coupling evidenced by a giant strain-induced anisotropy field (≈1 T) and a sizable magnetostriction coefficient (≈10 ppm), are reported. This exceptional combination of low intrinsic damping and substantial magnetostriction arises from the cation chemistry of NiZnAl-ferrite. At the same time, the coherently strained film structure suppresses extrinsic damping, enables soft magnetic behavior, and generates large easy-plane magnetoelastic anisotropy. These findings provide a foundation for a new class of low-loss, magnetoelastic thin film materials that are promising for spin-mechanical devices.
| Original language | English (US) |
|---|---|
| Article number | 1701130 |
| Journal | Advanced Materials |
| Volume | 29 |
| Issue number | 34 |
| DOIs | |
| State | Published - Sep 13 2017 |
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Keywords
- epitaxy
- ferromagnetic resonance
- magnetic damping
- magnetostriction
- spinel ferrite
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Coexistence of Low Damping and Strong Magnetoelastic Coupling in Epitaxial Spinel Ferrite Thin Films. / Emori, Satoru; Gray, Benjamin A.; Jeon, Hyung Min; Peoples, Joseph; Schmitt, Maxwell; Mahalingam, Krishnamurthy; Hill, Madelyn; McConney, Michael E.; Gray, Matthew T.; Alaan, Urusa S.; Bornstein, Alexander C.; Shafer, Padraic; N'Diaye, Alpha T.; Arenholz, Elke; Haugstad, Greg; Meng, Keng Yuan; Yang, Fengyuan; Li, Dongyao; Mahat, Sushant; Cahill, David G; Dhagat, Pallavi; Jander, Albrecht; Sun, Nian X.; Suzuki, Yuri; Howe, Brandon M.
In: Advanced Materials, Vol. 29, No. 34, 1701130, 13.09.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Coexistence of Low Damping and Strong Magnetoelastic Coupling in Epitaxial Spinel Ferrite Thin Films
AU - Emori, Satoru
AU - Gray, Benjamin A.
AU - Jeon, Hyung Min
AU - Peoples, Joseph
AU - Schmitt, Maxwell
AU - Mahalingam, Krishnamurthy
AU - Hill, Madelyn
AU - McConney, Michael E.
AU - Gray, Matthew T.
AU - Alaan, Urusa S.
AU - Bornstein, Alexander C.
AU - Shafer, Padraic
AU - N'Diaye, Alpha T.
AU - Arenholz, Elke
AU - Haugstad, Greg
AU - Meng, Keng Yuan
AU - Yang, Fengyuan
AU - Li, Dongyao
AU - Mahat, Sushant
AU - Cahill, David G
AU - Dhagat, Pallavi
AU - Jander, Albrecht
AU - Sun, Nian X.
AU - Suzuki, Yuri
AU - Howe, Brandon M.
PY - 2017/9/13
Y1 - 2017/9/13
N2 - Low-loss magnetization dynamics and strong magnetoelastic coupling are generally mutually exclusive properties due to opposing dependencies on spin–orbit interactions. So far, the lack of low-damping, magnetostrictive ferrite films has hindered the development of power-efficient magnetoelectric and acoustic spintronic devices. Here, magnetically soft epitaxial spinel NiZnAl-ferrite thin films with an unusually low Gilbert damping parameter (<3 × 10−3), as well as strong magnetoelastic coupling evidenced by a giant strain-induced anisotropy field (≈1 T) and a sizable magnetostriction coefficient (≈10 ppm), are reported. This exceptional combination of low intrinsic damping and substantial magnetostriction arises from the cation chemistry of NiZnAl-ferrite. At the same time, the coherently strained film structure suppresses extrinsic damping, enables soft magnetic behavior, and generates large easy-plane magnetoelastic anisotropy. These findings provide a foundation for a new class of low-loss, magnetoelastic thin film materials that are promising for spin-mechanical devices.
AB - Low-loss magnetization dynamics and strong magnetoelastic coupling are generally mutually exclusive properties due to opposing dependencies on spin–orbit interactions. So far, the lack of low-damping, magnetostrictive ferrite films has hindered the development of power-efficient magnetoelectric and acoustic spintronic devices. Here, magnetically soft epitaxial spinel NiZnAl-ferrite thin films with an unusually low Gilbert damping parameter (<3 × 10−3), as well as strong magnetoelastic coupling evidenced by a giant strain-induced anisotropy field (≈1 T) and a sizable magnetostriction coefficient (≈10 ppm), are reported. This exceptional combination of low intrinsic damping and substantial magnetostriction arises from the cation chemistry of NiZnAl-ferrite. At the same time, the coherently strained film structure suppresses extrinsic damping, enables soft magnetic behavior, and generates large easy-plane magnetoelastic anisotropy. These findings provide a foundation for a new class of low-loss, magnetoelastic thin film materials that are promising for spin-mechanical devices.
KW - epitaxy
KW - ferromagnetic resonance
KW - magnetic damping
KW - magnetostriction
KW - spinel ferrite
UR - http://www.scopus.com/inward/record.url?scp=85022327139&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85022327139&partnerID=8YFLogxK
U2 - 10.1002/adma.201701130
DO - 10.1002/adma.201701130
M3 - Article
AN - SCOPUS:85022327139
VL - 29
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 34
M1 - 1701130
ER -