Tunable magnetic ground states of iron monolayer on nonmagnetic metallic substrates by small in-plane strains.
Tunable magnetic ground states of iron monolayer on nonmagnetic metallic substrates by small in-plane strains.
复制标题
通过小面内应变可调节非磁性金属基底上铁单层的磁性基态
作者:
The magnetic states of one single atomic layer of iron epitaxially grown on 4d and 5d nonmagnetic metals are studied under strain systematically using first principle calculations. Our results show that, without strain, the iron on top of different 4d and 5d nonmagnetic metals shows distinct antiferromagnetic or ferromagnetic ground states: a parallel antiferromagnetic ground state (p-AFM) on Rh and a central antiferromagnetic ground state (c-AFM) on Ir and ferromagnetic (FM) ground state on Pd, Ag, Pt and Au. However, when introducing in-plane biaxial and uniaxial strain (Δεxx) on the substrates, the ground state of iron can be manipulated easily. In detail, for biaxial strain, the ground state of iron on an Rh substrate becomes FM when Δεxx < −2.0% and c-AFM when Δεxx > 0.8%, and on an Ir substrate, the ground state of iron becomes FM when Δεxx < −2.8% and c-AFM when Δεxx > –0.8%. However, for the uniaxial strain along the x direction, while using the corresponding Poisson's ratios to determine the strain along the y direction, the ground state of iron on an Rh substrate remains the p-AFM state, but on an Ir substrate, the ground state of iron changes from c-AFM to p-AFM at Δεxx = 0.2% or Δεxx = −0.3% along the x direction respectively.
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影响因子:
29.4
作者:
Guan, Mengmeng;Wang, Lei;Liu, Ming
通讯作者:
Liu, Ming
影响因子:
3.7
作者:
Deak, A.;Szunyogh, L.;Ujfalussy, B.
通讯作者:
Ujfalussy, B.
影响因子:
38.3
作者:
Huang, Bevin;Clark, Genevieve;Xu, Xiaodong
通讯作者:
Xu, Xiaodong
影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J
DOI:
10.1016/0022-5088(68)90141-0
发表时间:
1968-01-01
期刊:
JOURNAL OF THE LESS-COMMON METALS
影响因子:
--
作者:
HARRIS, IR;NORMAN, M;BRYANT, AW
通讯作者:
BRYANT, AW