scholarly journals Proximity effect, quasiparticle transport, and local magnetic moment in ferromagnet–d-wave-superconductor junctions

2000 ◽  
Vol 61 (2) ◽  
pp. 1456-1467 ◽  
Author(s):  
Jian-Xin Zhu ◽  
C. S. Ting
Keyword(s):  
Magnetic Moment ◽  
Proximity Effect ◽  
Local Magnetic Moment ◽  
Quasiparticle Transport ◽  
D Wave

scholarly journals Origin of the Low Magnetic Moment in Fe2AlTi: An Ab Initio Study

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1732 ◽  
Author(s):  
Martin Friák ◽  
Anton Slávik ◽  
Ivana Miháliková ◽  
David Holec ◽  
Monika Všianská ◽  
...  
Keyword(s):  
Ab Initio ◽  
Magnetic Moment ◽  
Energy Surface ◽  
Magnetic Moments ◽  
Local Magnetic Moment ◽  
Spin Configuration ◽  
Spin Effects ◽  
Order Of Magnitude ◽  
Huge Impact ◽  
Insight Into

The intermetallic compound Fe 2 AlTi (alternatively Fe 2 TiAl) is an important phase in the ternary Fe-Al-Ti phase diagram. Previous theoretical studies showed a large discrepancy of approximately an order of magnitude between the ab initio computed magnetic moments and the experimentally measured ones. To unravel the source of this discrepancy, we analyze how various mechanisms present in realistic materials such as residual strain effects or deviations from stoichiometry affect magnetism. Since in spin-unconstrained calculations the system always evolves to the spin configuration which represents a local or global minimum in the total energy surface, finite temperature spin effects are not well described. We therefore turn the investigation around and use constrained spin calculations, fixing the global magnetic moment. This approach provides direct insight into local and global energy minima (reflecting metastable and stable spin phases) as well as the curvature of the energy surface, which correlates with the magnetic entropy and thus the magnetic configuration space accessible at finite temperatures. Based on this approach, we show that deviations from stoichiometry have a huge impact on the local magnetic moment and can explain the experimentally observed low magnetic moments.

Proximity effect in dirty normal metals attachedto p and d wave superconductors

2006 ◽  
Vol 67 (1-3) ◽  
pp. 77-80
Author(s):  
Y. Asano ◽  
Y. Tanaka ◽  
S. Kashiwaya ◽  
H. Itoh ◽  
J. Inoue
Keyword(s):  
Proximity Effect ◽  
Normal Metals ◽  
D Wave

scholarly journals Stability and local magnetic moment of bilayer graphene by intercalation: first principles study

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19732-19738 ◽  
Author(s):  
Jinsen Han ◽  
Dongdong Kang ◽  
Jiayu Dai
Keyword(s):  
Magnetic Properties ◽  
Magnetic Moment ◽  
First Principles ◽  
Local Magnetic Moment ◽  
Bilayer Graphene ◽  
Intercalation Compounds ◽  
First Principles Study ◽  
Magnetic Elements

The migration and magnetic properties of the bilayer graphene with intercalation compounds (BGICs) with magnetic elements are theoretically investigated based on first principles study.

scholarly journals Unveiling orbital coupling at the CoPc/Bi(111) surface by ab initio calculations and photoemission spectroscopy

RSC Advances ◽  
2017 ◽  
Vol 7 (82) ◽  
pp. 52143-52150
Author(s):  
Zhaofeng Liang ◽  
Haoliang Sun ◽  
Kongchao Shen ◽  
Jinbang Hu ◽  
Bo Song ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Magnetic Moment ◽  
Local Magnetic Moment ◽  
Photoemission Spectroscopy

Orbital coupling is revealed at the CoPc/Bi(111) interface with the local magnetic moment retained in CoPc.

Orientation dependence of proximity effect in ferromagnet/$\mathsf{d}$-wave superconductor junctions

2004 ◽  
Vol 39 (3) ◽  
pp. 377-384 ◽  
Author(s):  
L. Y. Yang ◽  
Z. M. Zheng ◽  
H. L. Yu ◽  
G. Y. Sun ◽  
D. Y. Xing
Keyword(s):  
Proximity Effect ◽  
Orientation Dependence ◽  
D Wave
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