Odd Number of Coupled Antiferromagnetic Anisotropic Heisenberg Chains with Dzyaloshinskii-Moriya Interaction

1999 ◽  
Vol 212 (2) ◽  
pp. 317-324 ◽  
Author(s):  
A. Benyoussef ◽  
A. Boubekri ◽  
H. Ez-Zahraouy
Keyword(s):  
Heisenberg Chains ◽  
Moriya Interaction

Electron spin resonance in Heisenberg chains with alternating -tensor and the Dzyaloshinskii–Moriya interaction

2007 ◽  
Vol 310 (2) ◽  
pp. 1209-1211
Author(s):  
S.A. Zvyagin ◽  
J. Wosnitza ◽  
A.K. Kolezhuk ◽  
J. Krzystek ◽  
R. Feyerherm
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Spin Resonance ◽  
Heisenberg Chains ◽  
Moriya Interaction

Quantum discord in spin-1/2 Heisenberg chains with Dzyaloshinkii–Moriya interaction

2015 ◽  
Vol 13 (01) ◽  
pp. 1450043 ◽  
Author(s):  
Xiao San Ma ◽  
An Min Wang
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
External Magnetic Field ◽  
Quantum Discord ◽  
Mutual Effect ◽  
Dm Interaction ◽  
Separable States ◽  
Entanglement Of Formation ◽  
Heisenberg Chains ◽  
Moriya Interaction

We have investigated the quantum discord (QD) of the thermal density matrix of spin-1/2 Heisenberg chains with Dzyaloshinskii–Moriya (DM) interaction. With fermionization technique, we study the mutual effect of DM interaction and the external magnetic field on the QD and the entanglement. Our analysis implies that the DM interaction can enhance the QD while the external magnetic field will shrink the QD. By a comparison between the entanglement and the QD, we find that the QD is more robust to the temperature and to the external magnetic field than the entanglement of formation (EoF) in the sense that the EoF takes a zero value while the QD does not for high temperature and strong external magnetic field. This point confirms the conclusion that there exist some separable states containing non-zero QD.

scholarly journals Dzyaloshinskii–Moriya interaction in noncentrosymmetric superlattices

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Woo Seung Ham ◽  
Abdul-Muizz Pradipto ◽  
Kay Yakushiji ◽  
Kwangsu Kim ◽  
Sonny H. Rhim ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Degrees Of Freedom ◽  
Orbit Coupling ◽  
Inversion Symmetry ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Band Formation ◽  
Research Activities ◽  
Moriya Interaction

AbstractDzyaloshinskii–Moriya interaction (DMI) is considered as one of the most important energies for specific chiral textures such as magnetic skyrmions. The keys of generating DMI are the absence of structural inversion symmetry and exchange energy with spin–orbit coupling. Therefore, a vast majority of research activities about DMI are mainly limited to heavy metal/ferromagnet bilayer systems, only focusing on their interfaces. Here, we report an asymmetric band formation in a superlattices (SL) which arises from inversion symmetry breaking in stacking order of atomic layers, implying the role of bulk-like contribution. Such bulk DMI is more than 300% larger than simple sum of interfacial contribution. Moreover, the asymmetric band is largely affected by strong spin–orbit coupling, showing crucial role of a heavy metal even in the non-interfacial origin of DMI. Our work provides more degrees of freedom to design chiral magnets for spintronics applications.

scholarly journals Engineering Dzyaloshinskii-Moriya interaction in B20 thin-film chiral magnets

2018 ◽  
Vol 2 (7) ◽  
Author(s):  
Emrah Turgut ◽  
Hanjong Paik ◽  
Kayla Nguyen ◽  
David A. Muller ◽  
Darrell G. Schlom ◽  
...  
Keyword(s):  
Thin Film ◽  
Moriya Interaction

scholarly journals Interfacial Dzyaloshinskii-Moriya Interaction, Perpendicular Magnetic Anisotropy and damping in CoFeB/oxide-based systems

2021 ◽  
pp. 1-1
Author(s):  
I. Benguettat-El Mokhtari ◽  
Y. Roussigne ◽  
S. M. Cherif ◽  
S. Auffret ◽  
C. Baraduc ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Moriya Interaction
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