TY - JOUR
T1 - Antiferromagnetic anisotropy determination by spin Hall magnetoresistance
AU - Wang, Hua
AU - Hou, Dazhi
AU - Qiu, Zhiyong
AU - Kikkawa, Takashi
AU - Saitoh, Eiji
AU - Jin, Xiaofeng
N1 - Funding Information:
This work was supported by MOST (Grant No. 2015CB921402), NSFC (Grant Nos. 11374057, 11434003, and 11421404), ICC-IMR, Tohoku University, ERATO “Spin Quantum Rectification Project” (No. JPMJER1402) from JST, Japan, Grant-in-Aid for Scientific Research on Innovative Area “Nano Spin Conversion Science” (No. JP26103005), and Grant-in-Aid for young scientists (B) (No. JP17K14331) from JSPS KAKENHI, Japan. T.K. was supported by JSPS through a research fellowship for young scientists (No. JP15J08026).
PY - 2017/8/28
Y1 - 2017/8/28
N2 - An electric method for measuring magnetic anisotropy in antiferromagnetic insulators (AFIs) is proposed. When a metallic film with strong spin-orbit interactions, e.g., platinum (Pt), is deposited on an AFI, its resistance should be affected by the direction of the AFI Néel vector due to the spin Hall magnetoresistance (SMR). Accordingly, the direction of the AFI Néel vector, which is affected by both the external magnetic field and the magnetic anisotropy, is reflected in resistance of Pt. The magnetic field angle dependence of the resistance of Pt on AFI is calculated by considering the SMR, which indicates that the antiferromagnetic anisotropy can be obtained experimentally by monitoring the Pt resistance in strong magnetic fields. Calculations are performed for realistic systems such as Pt/Cr2O3, Pt/NiO, and Pt/CoO.
AB - An electric method for measuring magnetic anisotropy in antiferromagnetic insulators (AFIs) is proposed. When a metallic film with strong spin-orbit interactions, e.g., platinum (Pt), is deposited on an AFI, its resistance should be affected by the direction of the AFI Néel vector due to the spin Hall magnetoresistance (SMR). Accordingly, the direction of the AFI Néel vector, which is affected by both the external magnetic field and the magnetic anisotropy, is reflected in resistance of Pt. The magnetic field angle dependence of the resistance of Pt on AFI is calculated by considering the SMR, which indicates that the antiferromagnetic anisotropy can be obtained experimentally by monitoring the Pt resistance in strong magnetic fields. Calculations are performed for realistic systems such as Pt/Cr2O3, Pt/NiO, and Pt/CoO.
UR - http://www.scopus.com/inward/record.url?scp=85028529607&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028529607&partnerID=8YFLogxK
U2 - 10.1063/1.4986372
DO - 10.1063/1.4986372
M3 - Article
AN - SCOPUS:85028529607
VL - 122
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 8
M1 - 083907
ER -