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Ni and CoO spin cantings induced by Fe layer in Ni/CoO/Fe/vicinal MgO(001)

Journal Article · · Physical Review B
 [1];  [1];  [2];  [1];  [2];  [2];  [1];  [2];  [3];  [4];  [1]
  1. Univ. of California, Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. Korean Research Inst. of Standards and Science, Daejeon (Korea)
  4. Peking Univ., Beijing (China)
+ Show Author Affiliations
Using element-resolved x-ray magnetic circular dichroism and x-ray magnetic linear dichroism measurements, we studied Ni/CoO/vicinal MgO(001) and Ni/CoO/Fe/vicinal MgO(001) systems at 350 and 78 K. Above the CoO Néel temperature, the Ni magnetization is fully in plane and parallel to the atomic steps in both systems due to step-induced magnetic anisotropy. Below the CoO Néel temperature, the CoO spins in Ni/CoO/vicinal MgO(001) are fully in plane and parallel to the atomic steps and the Ni magnetization is fully in plane and perpendicular to the atomic steps due to the 90° Ni/CoO magnetic coupling. The CoO spins in Ni/CoO/Fe/vicinal MgO(001), however, develop an out-of-plane canted spin component in addition to the in-plane component parallel to the atomic steps. Consequently, the Ni magnetization is canted towards the out-of-plane direction by an appreciable angle. Finally, photoemission electron microscopy imaging shows a 90° interfacial magnetic coupling at both the Ni/CoO and the CoO/Fe interfaces and an absence of a direct interlayer coupling, showing that the Ni spin canting is due to its coupling to the canted CoO spin components which is caused by the underlying ferromagnetic Fe layer in Ni/CoO/Fe/vicinal MgO(001).
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Sponsoring Organization:
National Research Foundation of Korea; National Science Foundation (NSF); Natoinal Key Research and Development Program of China; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1634037
Alternate ID(s):
OSTI ID: 1411111
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 21 Vol. 96; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (43)

Exchange bias theory journal September 2001
Exchange bias journal February 1999
Perpendicular coupling at Fe–FeF2 interfaces journal February 1998
Ultrathin Co/Pt and Co/Pd multilayered films as magneto‐optical recording materials journal February 1990
Temperature-dependent magnetic anisotropies in epitaxial Fe/CoO/MgO(001) system studied by the planar Hall effect journal June 2011
Magnetic and structural properties of the Fe layers in CoO/Fe/Ag(001) heterostructure journal March 2012
Strain-modulated antiferromagnetic spin orientation and exchange coupling in Fe/CoO(001) journal May 2014
Magnetic anisotropy at the buried CoO/Fe interface journal December 2016
Interface mixing and its impact on exchange coupling in exchange biased systems journal October 2016
Crossover from in-plane to perpendicular magnetization in ultrathin Ni/Cu(001) films journal November 1994
Temperature and thickness dependence of magnetic moments in NiO epitaxial films journal May 1998
Effect of atomic steps on the magnetic anisotropy in vicinal Co/Cu(001) journal September 1998
Chemical effects at metal/oxide interfaces studied by x-ray-absorption spectroscopy journal November 2001
Magnetic versus crystal-field linear dichroism in NiO thin films journal January 2004
Tailoring the spin direction of antiferromagnetic NiO thin films grown on vicinal Ag ( 001 ) journal December 2006
Magnetic properties of coupled ultrathin Ni O ∕ Fe 3 O 4 (001) films journal December 2007
Influence of crystal field on anisotropic x-ray magnetic linear dichroism at the Co 2 + L 2 , 3 edges journal February 2008
Ni spin switching induced by magnetic frustration in FeMn/Ni/Cu(001) journal June 2009
Element-specific study of the anomalous magnetic interlayer coupling across NiO spacer layer in Co/NiO/Fe/Ag(001) using XMCD and XMLD journal July 2009
Effect of NiO spin orientation on the magnetic anisotropy of the Fe film in epitaxially grown Fe/NiO/Ag(001) and Fe/NiO/MgO(001) journal May 2010
In-plane spin reorientation transition in Fe/NiO bilayers on Ag(1,1,10) journal March 2011
Determination of the Fe magnetic anisotropies and the CoO frozen spins in epitaxial CoO/Fe/Ag(001) journal September 2011
Multiple in-plane spin reorientation transitions in Fe / CoO bilayers grown on vicinal MgO ( 001 ) journal March 2015
Effect of CoO/Ni orthogonal exchange coupling on perpendicular anisotropy of Ni films on Pd(001) journal April 2015
Activation of antiferromagnetic domain switching in exchange-coupled Fe/CoO/MgO(001) systems journal April 2015
Magnetic properties of epitaxial CoO/Fe(001) bilayers: The onset of exchange bias as a function of sublayer thickness and temperature journal September 2017
Role of the Antiferromagnetic Bulk Spin Structure on Exchange Bias journal March 2009
Direct Measurement of Rotatable and Frozen CoO Spins in Exchange Bias System of CoO / Fe / Ag ( 001 ) journal May 2010
How Antiferromagnetism Drives the Magnetization of a Ferromagnetic Thin Film to Align Out of Plane journal March 2013
Chirality Switching and Winding or Unwinding of the Antiferromagnetic NiO Domain Walls in Fe / NiO / Fe / CoO / Ag ( 001 ) journal October 2014
Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in ( La 1 − x Sr x MnO 3 ) / ( SrIrO 3 ) Superlattices journal August 2017
Interface magnetic anisotropy in epitaxial superlattices journal September 1991
Magnetic live surface layers in Fe/Cu(100) journal December 1992
Asymmetry of the spin reorientation transition in ultrathin Fe films and wedges grown on Ag(100) journal February 1993
State-tracking first-principles determination of magnetocrystalline anisotropy journal February 1993
Finite-Size Effects and Uncompensated Magnetization in Thin Antiferromagnetic CoO Layers journal March 1996
Symmetry-Induced Magnetic Anisotropy in Fe Films Grown on Stepped Ag(001) journal September 1996
Spin Reorientation at the Antiferromagnetic NiO(001) Surface in Response to an Adjacent Ferromagnet journal March 2001
Exchange-Induced Anisotropies at Ferromagnetic-Antiferromagnetic Interfaces above and below the Néel Temperature journal June 2003
Controlling Orbital Moment and Spin Orientation in CoO Layers by Strain journal October 2005
Effects of Shadowing in Oblique-Incidence Metal (100) Epitaxial Growth journal January 2007
Magnetic Proximity Effects in Antiferromagnet/Ferromagnet Bilayers: The Impact on the Néel Temperature journal June 2007
Epitaxial growth and magnetic exchange anisotropy in Fe3O4/NiO bilayers grown on MgO(001) and Al2O3(0001) journal March 2005

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Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
antiferromagnetism
ferromagnetism
magnetic multilayers
magnetism
thin films
x-ray magnetic circular dichroism
x-ray magnetic linear dichroism
x-ray photoemission electron microscopy