Evolution of the spin-state transition with doping in La<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:math>Sr<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mi>x</mml:mi></mml:msub></mml:math>CoO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>3</mml:mn></mml:m

Smith, R.; Hoch, M.; Moulton, W. G.; Kuhns, P. L.; Reyes, A. P.; Boebinger, G. S.; Zheng, Hao; Mitchell, J. F.

doi:10.1103/physrevb.86.054428

Cited by 28 publications

(24 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…where the Rindler Region I or II Fock states carry a subscript I and II, respectively on the kets, but the Minkowski Fock states are indicated by the subscript M on the kets. As what follows, we are only interested in using the single mode approximation [19,35,[49][50][51][52][53], i. e. , w A,B,C,D = w and also uniform acceleration a A,B,C,D = a (a w,M ≈ a w,U is considered to relate Minkowski and Unruh modes) for simplicity and we will drop all labels (k, −k) on the states. Even though the single mode approximation is invalid for general states, however the approximation holds for a family of peaked Minkowski wave packets provided constraints imposed by an appropriate Fourier transform are satisfied [54].…”

Section: Tetrapartite Entanglement From One To Four Accelerated Omentioning

confidence: 99%

“…Using the single mode approximation, Bob's vacuum state |0 B and one-particle state |1 B in Minkowski space are transformed into Rindler space. By applying the creation and annihilation operators to above equation (8) and using the normalization condition, we can obtain [19,35,[49][50][51][52][53]…”

Section: Tetrapartite Entanglement From One To Four Accelerated Omentioning

confidence: 99%

See 1 more Smart Citation

Tetrapartite entanglement features of W-Class state in uniform acceleration

2019

View full text Add to dashboard Cite

Using the single-mode approximation, we first calculate entanglement measures such as negativity (1 − 3 and 1 − 1 tangles) and von Neumann entropy for a tetrapartite W-Class system in noninertial frame and then analyze the whole entanglement measures, the residual π4 and geometric Π4 average of tangles. Notice that the difference between π4 and Π4 is very small or disappears with the increasing accelerated observers. The entanglement properties are compared among the different cases from one accelerated observer to four accelerated observers. The results show that there still exists entanglement for the complete system even when acceleration r tends to infinity. The degree of entanglement is disappeared for the 1 − 1 tangle case when the acceleration r > 0.472473. We reexamine the Unruh effect in noninertial frames. It is shown that the entanglement system in which only one qubit is accelerated is more robust than those entangled systems in which two or three or four qubits are accelerated. It is also found that the von Neumann entropy S of the total system always increases with the increasing accelerated observers, but the S κξ and S κζδ with two and three involved noninertial qubits first increases and then decreases with the acceleration parameter r, but they are equal to constants 1 and 0.811278 respectively for zero involved noninertial qubit.

show abstract

Section: Tetrapartite Entanglement From One To Four Accelerated Omentioning

confidence: 99%

Section: Tetrapartite Entanglement From One To Four Accelerated Omentioning

confidence: 99%

Tetrapartite entanglement features of W-Class state in uniform acceleration

2019

View full text Add to dashboard Cite

show abstract

“…Their results can also be used to get some theoretical predictions about the outcome of a Stern-Gerlach type experiment which may lead to get a more suitable spin operator. The acceleration effects on non-locality are also investigated in [35,[54][55][56][57][58][59][60][61][62][63].…”

Section: Introductionmentioning

confidence: 99%

One and two spin-1/2 particle systems under the Lorentz transformations

Moradpour

Bahadoran

Youplao

et al. 2018

Journal of King Saud University - Science

View full text Add to dashboard Cite

Lorentz transformation (LT) is used to connect two inertia frames, including the lab and moving frames, and the effect of LT on the states of one spin-1/2 particle system is studied. Moreover, we address the predictions made by Czachor's and the Pauli spin operators about the spin behavior and compare our results with the behavior of system's state under Lorentz transformation. This investigation shows that the predictions made by considering the Pauli spin operator about the spin of system are in better agreement with the system's state in comparison with that of made by considering Czachor's spin operator. In continue, we focus on two-particle pure entangled systems including two spin−1/2 particles which moves away from each other. Once again, the behavior of this system's states under Lorentz transformation are investigated. We also point to the behavior of Bell's inequality, as a witness for non-locality, under Lorentz transformation. Our study shows that the Bell operator made by the Pauli operator has better consistency with the behavior of spin state of system under Lorentz transformation compared with the Bell operator made by Czachor's operator. Our approach can be used to study the relation between the various spin operators and the effect of LT on system, which provides the basement to predict the outcome of a Stern-Gerlach type experiment in the relativistic situations.

show abstract

“…24 Besides, the substitution of Sr 2þ for La 3þ in this system can induce the transition of the Co 3þ spin state in La 1Àx Sr x CoO 3 (LSCO) compounds as well. 25 Up to now, the investigation of stress-induced SST in LCO-based system is mostly performed in the corresponding films by depositing them with different thicknesses or on different substrates. [26][27][28] For example, La 0.5 Sr 0.5 CoO 3 films grown on LaAlO 3 and SrTiO 3 substrates demonstrate a change of ferromagnetic Curie temperature T C from 198 K to 241 K. 26 As for the LCO film, it is paramagnetic on LaAlO 3 substrate.…”

mentioning

confidence: 99%

The electric field manipulation of magnetization in La1−xSrxCoO3/Pb(Mg1/3Nb2/3)O3-PbTiO3 heterostructures

Zhang

Gao

et al. 2014

Applied Physics Letters

View full text Add to dashboard Cite

La1−xSrxCoO3 (x = 0.18, 0.33, and 0.5) films were grown epitaxially on piezoelectric Pb(Mg1/3Nb2/3)O3-PbTiO3 substrates by pulsed laser deposition. The magnetization of these films varies with the external electric field, showing the magnetoelectric effect. With different doping content of Sr2+ ions, the change of magnetization for these films show different behaviors with increasing temperature, which can be attributed to the competition between electric-field-induced changes of spin state and double exchange interaction. This work presents an alternative mechanism to investigate the electric field control of magnetism in magnetoelectric heterostructure by tuning the spin state.

show abstract

Evolution of the spin-state transition with doping in La1−xSrxCoO3

Cited by 28 publications

References 19 publications

Tetrapartite entanglement features of W-Class state in uniform acceleration

Tetrapartite entanglement features of W-Class state in uniform acceleration

One and two spin-1/2 particle systems under the Lorentz transformations

The electric field manipulation of magnetization in La1−xSrxCoO3/Pb(Mg1/3Nb2/3)O3-PbTiO3 heterostructures

Contact Info

Product

Resources

About