Aging and deaging effects in shape memory alloys

Xue, Dezhen; Zhou, Yumei; Ding, Xiangdong; Sun, Jun; Ren, Xiaobing

doi:10.1103/physrevb.86.184109

Cited by 23 publications

(10 citation statements)

References 36 publications

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“…The in situ time-dependent XRD profiles for BNT–5BT at 70 °C (figure 7(c) inset) shows that the gradual development of long-range ordering domains, especially in the initial 2 h, were consistent with the time period of the modulus valleys. After the ‘stepwise increase’, the modulus becomes saturated with time evolution, indicating that the isothermal transition is nearly complete and an ageing effect becomes dominant [50–53]. …”

Section: Resultsmentioning

confidence: 99%

Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi_1/2Na_1/2)TiO₃ − xBaTiO₃ (x ≤ 7%)

Yao

Sun

et al. 2013

Science and Technology of Advanced Materials

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(1 − x)(Bi1/2Na1/2)TiO3 − xBaTiO3 has been the most studied Pb-free piezoelectric material in the last decade; however, puzzles still remain about its phase transitions, especially around the important morphotropic phase boundary (MPB). By introducing the strain glass transition concept from the ferroelastic field, it was found that the phase transition from tetragonal (T, P4bm) to rhombohedral (R, R3c) was affected by a strain glass transition at higher temperature for x ≽ 4%. In these compositions, the T–R transition was delayed or even totally suppressed and displayed huge thermal hysteresis upon cooling and heating. Also, isothermal phase transitions were predicted and realized successfully in the crossover region, where the interaction between the T–R transition and the strain glass transition was strong. Our results revealed the strain glass nature in compositions around the MPB in this important material, and also provide new clues for understanding the transition complexity in other (Bi1/2Na1/2)TiO3-based Pb-free piezoelectric materials.

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Section: Resultsmentioning

confidence: 99%

Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi_1/2Na_1/2)TiO₃ − xBaTiO₃ (x ≤ 7%)

Yao

Sun

et al. 2013

Science and Technology of Advanced Materials

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“…For instance, three nonlinear oscillators mutually coupled to each other were used as a source of entangled W states [29]. It is particularly important because recently, tri and multipartite entanglement becomes one of the most intriguing features discussed in the literature (for instance see [15,30]).…”

Section: Introductionmentioning

confidence: 99%

Quantum correlations and entanglement in a model comprised of a short chain of nonlinear oscillators

et al. 2016

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We discuss a model comprising a chain of three Kerr-like nonlinear oscillators pumped by two modes of external coherent field. We show that the system can be treated as nonlinear quantum scissors and behave as a three-qubit model. For such situation different types of tripartite entangled states can be generated, even when damping effects are present in the system. Some amount of such entanglement can survive even in a long-time limit. The flow of bipartite entanglement between subsystems of the model and relations among first-, second-order correlations and the entanglement are discussed.

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“…* sbougouffa@hotmail.com A number of theoretical and experiments studies were carried out on the simplest quantum network composed of only two cavities, and several schemes have been proposed in which an efficient transmission between the cavities could be achieved [16][17][18]. In most treatments the cavities contained two-level atoms, and the creation of entanglement between the atoms and its transfer to the cavity modes was considered [19][20][21][22][23][24][25][26][27][28][29][30]. It has also been demonstrated that effective quantum gates between atoms located in distant cavities can be realized even in the presence of losses and imperfections in coupling strengths [31,32].…”

Section: Introductionmentioning

confidence: 99%

Evidence of indistinguishability and entanglement determined by the energy-time uncertainty principle in a system of two strongly coupled bosonic modes

Bougouffa

Ficek

2016

Phys. Rev. A

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The link of two concepts, indistinguishability and entanglement, with the energy-time uncertainty principle is demonstrated in a system composed of two strongly coupled bosonic modes. Working in the limit of a short interaction time, we find that the inclusion of the antiresonant terms to the coupling Hamiltonian leads the system to relax to a state which is not the ground state of the system. This effect occurs passively by just presence of the antiresonant terms and is explained in terms of the time-energy uncertainty principle for the simple reason that at a very short interaction time, the uncertainty in the energy is of order of the energy of a single excitation, thereby leading to a distribution of the population among the zero, singly and doubly excited states. The population distribution, correlations and entanglement are shown to be substantially depend on whether the modes decay independently or collectively to an exterior reservoir. In particular, when the modes decay independently with equal rates, entanglement with the complete distinguishability of the modes is observed. The modes can be made mutually coherent if they decay with unequal rates. However, the visibility in the single-photon interference cannot exceed 50%. When the modes experience collective damping, they are indistinguishable even if decay with equal rates and the visibility can, in principle, be as large as unity. We find that this feature derives from the decay of the system to a pure entangled state rather than the expected mixed state. When the modes decay with equal rates, the steady-state values of the density matrix elements are found dependent on their initial values.

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Aging and deaging effects in shape memory alloys

Cited by 23 publications

References 36 publications

Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi_1/2Na_1/2)TiO₃ − xBaTiO₃ (x ≤ 7%)

Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi_1/2Na_1/2)TiO₃ − xBaTiO₃ (x ≤ 7%)

Quantum correlations and entanglement in a model comprised of a short chain of nonlinear oscillators

Evidence of indistinguishability and entanglement determined by the energy-time uncertainty principle in a system of two strongly coupled bosonic modes

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Aging and deaging effects in shape memory alloys

Cited by 23 publications

References 36 publications

Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi1/2Na1/2)TiO3 − xBaTiO3 (x ≤ 7%)

Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi1/2Na1/2)TiO3 − xBaTiO3 (x ≤ 7%)

Quantum correlations and entanglement in a model comprised of a short chain of nonlinear oscillators

Evidence of indistinguishability and entanglement determined by the energy-time uncertainty principle in a system of two strongly coupled bosonic modes

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Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi_1/2Na_1/2)TiO₃ − xBaTiO₃ (x ≤ 7%)

Evolution of the tetragonal to rhombohedral transition in (1 − x)(Bi_1/2Na_1/2)TiO₃ − xBaTiO₃ (x ≤ 7%)