Topological phase interference effects in resonant quantum tunneling of the Néel vector between nonequivalent magnetic wells in mesoscopic single-domain antiferromagnets

2000 ◽  
Vol 14 (2) ◽  
pp. 349-361 ◽  
Author(s):  
Rong Lü ◽  
Hui Hu ◽  
Jia-Lin Zhu ◽  
Xiao-Bing Wang ◽  
Lee Chang ◽  
...  
Keyword(s):  
Quantum Tunneling ◽  
Single Domain ◽  
Topological Phase ◽  
Interference Effects ◽  
Phase Interference

Topological phase interference induced by a magnetic field along hard anisotropy axis in nanospin systems with different crystal symmetries

2000 ◽  
Vol 61 (21) ◽  
pp. 14581-14591 ◽  
Author(s):  
Rong Lü ◽  
Hui Hu ◽  
Jia-Lin Zhu ◽  
Xiao-Bing Wang ◽  
Lee Chang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Anisotropy Axis ◽  
Topological Phase ◽  
Phase Interference

Quantum Tunneling of Magnetization in Single Domain CoFe2O4 Particles

1997 ◽  
Vol 07 (C1) ◽  
pp. C1-527-C1-528
Author(s):  
T. Oku ◽  
H. Takano ◽  
M. Ohwada ◽  
T. Sato ◽  
E. Ohta
Keyword(s):  
Quantum Tunneling ◽  
Single Domain ◽  
Quantum Tunneling Of Magnetization

Magnetic quantum tunneling and the topological phase

1994 ◽  
Vol 197 (1-4) ◽  
pp. 109-114 ◽  
Author(s):  
David P. Di Vincenzo
Keyword(s):  
Quantum Tunneling ◽  
Topological Phase

scholarly journals Quantum phase interference for quantum tunneling in spin systems

2000 ◽  
Vol 61 (13) ◽  
pp. 8856-8862 ◽  
Author(s):  
J.-Q. Liang ◽  
H. J. W. Müller-Kirsten ◽  
D. K. Park ◽  
F.-C. Pu
Keyword(s):  
Quantum Tunneling ◽  
Spin Systems ◽  
Quantum Phase ◽  
Phase Interference

scholarly journals Emergent Helical Edge States in a Hybridized Three-Dimensional Topological Insulator

2021 ◽  
Author(s):  
Su Kong Chong ◽  
Lizhe Liu ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
Taylor Sparks ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Quantum Tunneling ◽  
Three Dimensional ◽  
Quantum Spin ◽  
Topological Phase ◽  
Edge States ◽  
Experimental Realization ◽  
Transition Mechanism ◽  
Topological Quantum ◽  
Topological State

Abstract As the thickness of a three-dimensional (3D) topological insulator (TI) becomes comparable to the penetration depth of surface states, quantum tunneling between surfaces turns their gapless Dirac electronic structure into a gapped spectrum. Whether the surface hybridization gap can host topological edge states is still an open question. Herein, we provide transport evidence of 2D topological states in the quantum tunneling regime of a bulk insulating 3D TI BiSbTeSe2. Different from its trivial insulating phase, this 2D topological state exhibits a finite longitudinal conductance at ~2e2/h when the Fermi level is aligned within the surface gap, indicating an emergent quantum spin Hall (QSH) state. The transition from the QSH to quantum Hall (QH) state in a transverse magnetic field further supports the existence of this distinguished 2D topological phase. In addition, we demonstrate a second route to realize the 2D topological state via surface gap-closing and topological phase transition mechanism mediated by a transverse electric field. The experimental realization of the 2D topological phase in a 3D TI enriches its phase diagram and marks an important step toward functional topological quantum devices.

scholarly journals Quantum tunneling of magnetization in single domain particles

1993 ◽  
Vol 73 (10) ◽  
pp. 6952-6954 ◽  
Author(s):  
J. Tejada ◽  
Ll. Balcells ◽  
S. Linderoth ◽  
R. Perzynski ◽  
B. Rigau ◽  
...  
Keyword(s):  
Quantum Tunneling ◽  
Single Domain ◽  
Quantum Tunneling Of Magnetization

Quantum Tunneling and Quantum Phase Interference in a [MnII2MnIII2] Single-Molecule Magnet

2005 ◽  
Vol 127 (32) ◽  
pp. 11311-11317 ◽  
Author(s):  
Lollita Lecren ◽  
Wolfgang Wernsdorfer ◽  
Yang-Guang Li ◽  
Olivier Roubeau ◽  
Hitoshi Miyasaka ◽  
...  
Keyword(s):  
Single Molecule ◽  
Quantum Tunneling ◽  
Quantum Phase ◽  
Single Molecule Magnet ◽  
Phase Interference
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