Strong spin-phonon coupling in the geometrically frustrated pyrochloreY2Ru2O7

2004 ◽  
Vol 69 (21) ◽  
Author(s):  
J. S. Lee ◽  
T. W. Noh ◽  
J. S. Bae ◽  
In-Sang Yang ◽  
T. Takeda ◽  
...  
Keyword(s):  
Phonon Coupling ◽  
Geometrically Frustrated ◽  
Strong Spin

Roles of the strong spin–phonon coupling in the geometrically frustrated pyrochlore YRuO

2005 ◽  
Vol 359-361 ◽  
pp. 1240-1242 ◽  
Author(s):  
J.S. Lee ◽  
T.W. Noh ◽  
T. Takeda ◽  
R. Kanno
Keyword(s):  
Phonon Coupling ◽  
Geometrically Frustrated ◽  
Strong Spin

Strong spin–phonon coupling in Gd-filled nanotubes

2021 ◽  
Vol 130 (21) ◽  
pp. 214301
Author(s):  
V. R. Sodisetti ◽  
S. Ncube ◽  
C. Coleman ◽  
R. M. Erasmus ◽  
E. Flahaut ◽  
...  
Keyword(s):  
Phonon Coupling ◽  
Strong Spin

scholarly journals Coherent acoustic control of a single silicon vacancy spin in diamond

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Smarak Maity ◽  
Linbo Shao ◽  
Stefan Bogdanović ◽  
Srujan Meesala ◽  
Young-Ik Sohn ◽  
...  
Keyword(s):  
Quantum Systems ◽  
Phonon Coupling ◽  
Single Spin ◽  
Silicon Vacancy ◽  
Acoustic Control ◽  
State Point ◽  
Hybrid Quantum Systems ◽  
Universal Quantum ◽  
Vacancy Center ◽  
Strong Spin

AbstractPhonons are considered to be universal quantum transducers due to their ability to couple to a wide variety of quantum systems. Among these systems, solid-state point defect spins are known for being long-lived optically accessible quantum memories. Recently, it has been shown that inversion-symmetric defects in diamond, such as the negatively charged silicon vacancy center (SiV), feature spin qubits that are highly susceptible to strain. Here, we leverage this strain response to achieve coherent and low-power acoustic control of a single SiV spin, and perform acoustically driven Ramsey interferometry of a single spin. Our results demonstrate an efficient method of spin control for these systems, offering a path towards strong spin-phonon coupling and phonon-mediated hybrid quantum systems.

scholarly journals Strong spin-phonon coupling in infrared and Raman spectra ofSrMnO3

2014 ◽  
Vol 89 (6) ◽  
Author(s):  
S. Kamba ◽  
V. Goian ◽  
V. Skoromets ◽  
J. Hejtmánek ◽  
V. Bovtun ◽  
...  
Keyword(s):  
Raman Spectra ◽  
Infrared And Raman Spectra ◽  
Phonon Coupling ◽  
Strong Spin

scholarly journals Supersymmetric spin–phonon coupling prevents odd integer spins from quantum tunneling

2021 ◽  
Vol 94 (3) ◽  
Author(s):  
Kilian Irländer ◽  
Heinz-Jürgen Schmidt ◽  
Jürgen Schnack
Keyword(s):  
Quantum Tunneling ◽  
Degrees Of Freedom ◽  
Spin Systems ◽  
Phonon Coupling ◽  
Temperature Dependent ◽  
Integer Spin ◽  
Quantum Numbers ◽  
Spin Quantum ◽  
Strong Spin

AbstractQuantum tunneling of the magnetization is a phenomenon that impedes the use of small anisotropic spin systems for storage purposes even at the lowest temperatures. Phonons, usually considered for temperature dependent relaxation of magnetization over the anisotropy barrier, also contribute to magnetization tunneling for integer spin quantum numbers. Here we demonstrate that certain spin–phonon Hamiltonians are unexpectedly robust against the opening of a tunneling gap, even for strong spin–phonon coupling. The key to understanding this phenomenon is provided by an underlying supersymmetry that involves both spin and phonon degrees of freedom.

scholarly journals Spin-orbit coupling enhanced superconductivity in Bi-rich compounds ABi3 (A = Sr and Ba)

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
D. F. Shao ◽  
X. Luo ◽  
W. J. Lu ◽  
L. Hu ◽  
X. D. Zhu ◽  
...  
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Superconducting Transition ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Enhanced Superconductivity ◽  
Phonon Properties ◽  
Strong Spin

Abstract Recently, Bi-based compounds have attracted attentions because of the strong spin-orbit coupling (SOC). In this work, we figured out the role of SOC in ABi3 (A = Sr and Ba) by theoretical investigation of the band structures, phonon properties, and electron-phonon coupling. Without SOC, strong Fermi surface nesting leads to phonon instabilities in ABi3. SOC suppresses the nesting and stabilizes the structure. Moreover, without SOC the calculation largely underestimates the superconducting transition temperatures (T c ), while with SOC the calculated T c are very close to those determined by measurements on single crystal samples. The SOC enhanced superconductivity in ABi3 is due to not only the SOC induced phonon softening, but also the SOC related increase of electron-phonon coupling matrix elements. ABi3 can be potential platforms to construct heterostructure of superconductor/topological insulator to realize topological superconductivity.

Strong spin–phonon coupling between a single-molecule magnet and a carbon nanotube nanoelectromechanical system

2013 ◽  
Vol 8 (3) ◽  
pp. 165-169 ◽  
Author(s):  
Marc Ganzhorn ◽  
Svetlana Klyatskaya ◽  
Mario Ruben ◽  
Wolfgang Wernsdorfer
Keyword(s):  
Carbon Nanotube ◽  
Single Molecule ◽  
Phonon Coupling ◽  
Single Molecule Magnet ◽  
Nanoelectromechanical System ◽  
Strong Spin

Strong Spin-Phonon Coupling Mediated by Single Ion Anisotropy in the All-In–All-Out Pyrochlore Magnet Cd2Os2O7

2017 ◽  
Vol 118 (11) ◽  
Author(s):  
C. H. Sohn ◽  
C. H. Kim ◽  
L. J. Sandilands ◽  
N. T. M. Hien ◽  
S. Y. Kim ◽  
...  
Keyword(s):  
Phonon Coupling ◽  
Strong Spin

The magnetic entropy change in the double perovskite La2NiMnO6 with strong spin–phonon coupling

2009 ◽  
Vol 149 (19-20) ◽  
pp. 810-813 ◽  
Author(s):  
X. Luo ◽  
Y.P. Sun ◽  
B. Wang ◽  
X.B. Zhu ◽  
W.H. Song ◽  
...  
Keyword(s):  
Magnetic Entropy Change ◽  
Double Perovskite ◽  
Entropy Change ◽  
Phonon Coupling ◽  
Magnetic Entropy ◽  
Strong Spin
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