X-ray scattering study on the electric field-induced interfacial magnetic anisotropy modulation at CoFeB / MgO interfaces

被引：3

作者：

Song, Kyung Mee ^{[1
,2
]}

Kim, Dong-Ok ^{[1
,3
,4
]}

Kim, Jae-Sung ^{[2
]}

Lee, Dong Ryeol ^{[3
]}

Choi, Jun Woo ^{[1
]}

机构：

[1] Korea Inst Sci & Technol, Ctr Spintron, Seoul 02792, South Korea

[2] Sookmyung Womens Univ, Dept Phys, Seoul 04130, South Korea

[3] Soongsil Univ, Dept Phys, Seoul 06978, South Korea

[4] Korea Res Inst Stand & Sci, Quantum Technol Inst, Daejeon 34113, South Korea

来源：

CURRENT APPLIED PHYSICS | 2018年 / 18卷 / 11期

关键词：

Spintronics; Magnetic anisotropy; X-ray scattering; Electric field control of magnetism; ATOMIC LAYERS;

D O I：

10.1016/j.cap.2018.05.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electric field-induced modifications of magnetic anisotropy in CoFeB/MgO systems are studied using X-ray resonant magnetic scattering and magneto-optical Kerr effect. Voltage dependent changes of the magnetic anisotropy of -12.7 fJ/Vm and - 8.32 fJ/Vm are observed for Ta/CoFeB/MgO and Hf/CoFeB/MgO systems, respectively. This implies that the interfacial perpendicular magnetic anisotropy is reduced (enhanced) when electron density is increased (decreased). X-ray resonant magnetic scattering measurements reveal that the small in-plane magnetic component of the remanent state of CoFeB/MgO systems with weak magnetic anisotropy changes depending on the applied voltage leading to modification of the magnetic anisotropy at the CoFeB/MgO interface.

引用

页码：1212 / 1217

页数：6

共 50 条

[41] Electric Field-Induced structural modulation of epitaxial PbZrTiO3 ferroelectric thin films as studied using x-ray microdiffraction
Bark, Chung W.
Ryu, Sangwoo
Koo, Yang M.
Jang, Hyun M.
ADVANCED MATERIALS AND PROCESSING, 2007, 26-28 : 1079 - +
[42] Induced magnetism at the interfaces of a Fe/V superlattice investigated by resonant magnetic x-ray scattering
Magnuson, Martin
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017, 422 : 362 - 366
[43] X-ray diffractometer for the investigation of temperature- and magnetic field-induced structural phase transitions
Faske, Tom (faske@st.tu-darmstadt.de), 2018, Wiley-Blackwell, 5 Abbey Road, Chester, CH1 2HU, United Kingdom (51)
[44] X-ray diffractometer for the investigation of temperature- and magnetic field-induced structural phase transitions
Faske, Tom
Donner, Wolfgang
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2018, 51 : 761 - 767
[45] A nondestructive analysis of the B diffusion in Ta-CoFeB-MgO-CoFeB-Ta magnetic tunnel junctions by hard x-ray photoemission
Kozina, Xeniya
Ouardi, Siham
Balke, Benjamin
Stryganyuk, Gregory
Fecher, Gerhard H.
Felser, Claudia
Ikeda, Shoji
Ohno, Hideo
Ikenaga, Eiji
APPLIED PHYSICS LETTERS, 2010, 96 (07)
[46] The study of origin of interfacial perpendicular magnetic anisotropy in ultra-thin CoFeB layer on the top of MgO based magnetic tunnel junction
Li, Zhi-Peng
Li, Shaoping
Zheng, Yuankai
Fang, Jason
Chen, Lifan
Hong, Liang
Wang, Haifeng
APPLIED PHYSICS LETTERS, 2016, 109 (18)
[47] Structural and magnetic asymmetry at the interfaces of MgO/FeCoB/MgO trilayer: Precise study under x-ray standing wave conditions
Jamal, Md. Shahid
Gupta, Pooja
Raj, Rakhul
Gupta, Mukul
Reddy, V. R.
Kumar, Dileep
JOURNAL OF APPLIED PHYSICS, 2022, 131 (23)
[48] X-ray diffraction study of electric field-induced metal-insulator transition of vanadium dioxide film on sapphire substrate
Okimura, Kunio
Sasakawa, Yusuke
Nihei, Yusuke
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (12): : 9200 - 9202
[49] X-ray microtomography of field-induced macro-structures in a ferrofluid
Lee, Wah-Keat
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2010, 322 (17) : 2525 - 2528
[50] Electric field-induced magnetocrystalline anisotropy at transition-metal surfaces and interfaces: First principles predictions
Nakamura K.
Akiyama T.
Ito T.
Journal of the Vacuum Society of Japan, 2011, 54 (10) : 507 - 511

← 1 2 3 4 5 →