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Yh, Zhang; Hasegawa, M.; Guo, Wenrui; Liu, ML; Zhou, XH; Angelis, G. de; Axiotis, M.; Gadea, A.; Mărginean, N.; Martinez,; Napoli, D. R.; Rusu, C.; Podolyák, Zs.; Ur, C. A.; Bazzacco, D.; Brandolini, F.; Lunardi, S.; Lenzi, S. M.; Menegazzo, R.; Schwengner, R.; Gargano, A.; Oertzen, W. von; Tazaki, S.

doi:10.1103/physrevc.79.044316

Cited by 23 publications

(9 citation statements)

References 24 publications

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“…Chemical reactivity between them, controlled by the covalency of their Cu -O -Cu bonds, stabilises the overall crystal structure kinetically by zero point fluctuations of the Cu-O bond-length, oscillating between 1.93 and 1.83Å. This is evidenced experimentally in the double peak structured PDF (pair-distribution function) [30] and in the splitting of the Cu -O -Cu bond stretch mode [31]. The fluctuations of the bond-length go hand in hand with double charge fluctuations on such deformable plaquettes favouring textured meso-structures, as seen in STM-IS (scanning tunnelling microscope imaging spectroscopy) [32][33][34] [35].…”

Section: Resonating Bipolaronsmentioning

confidence: 96%

Dynamical Local Lattice Instability Triggered High T_cSuperconductivity

Ranninger

2015

Acta Phys. Pol. A

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High Tc cuprate superconductors are characterized by two robust features: their strong electronic correlations and their intrinsic dynamical local lattice instabilities. Focusing on exclusively that latter, we picture their parent state in form of a quantum vacuum representing an electronic magma in which bound diamagnetic spin-singlet pairs pop in and out of existence in a Fermi sea of itinerant electrons. The mechanism behind that resides in the structural incompatibility of two stereo-chemical congurations Cu II O4 and Cu III O4 which compose the CuO2 planes. It leads to spontaneously uctuating CuOCu valence bonds which establish a local Feshbach resonance exchange coupling between bound and unbound electron pairs. The coupling, being the only free parameter in this scenario, the hole doping of the parent state is monitored by varying the total number of unpaired and paired electrons, in chemical equilibrium with each other. Upon lowering the temperature to below a certain T * , bound and unbound electron pairs lock together in a local quantum superposition, generating transient localized bound electron pairs and a concomitant opening of a pseudo-gap in the single-particle density of states. At low temperature, this pseudo-gap state transits via a rst order hole doping induced phase transition into a superconducting state in which the localized transient bound electron pairs get spatially phase correlated. The mechanism driving that transition is a phase separation between two phases having dierent relative densities of bound and unbound electron pairs, which is reminiscent of the physics of 4 He 3 He mixtures.

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Section: Resonating Bipolaronsmentioning

confidence: 96%

Dynamical Local Lattice Instability Triggered High T_cSuperconductivity

Ranninger

2015

Acta Phys. Pol. A

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“…Thermodynamic properties are used to characterize constraint-satisfaction problems such as the N -queens and Latin problems [15,16]. In these studies, the possibility of phase-transition at system size N → ∞ is investigated, however, no phase transition is found.…”

Section: Anomaly In Thermodynamic Propertiesmentioning

confidence: 99%

“…The investigation of the thermodynamic properties will give us information not only on the most optimized network, but also on the second, third, or subsequent "most optimized" configurations. In addition, thermal properties are used to characterize constraintsatisfaction problems such as N -queens and Latin problems [15,16]. Therefore, we investigate the thermodynamic properties of these ensembles in this paper.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic characterization of synchronization-optimized oscillator networks

Yanagita

Ichinomiya

2014

Phys. Rev. E

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We consider a canonical ensemble of synchronization-optimized networks of identical oscillators under external noise. By performing a Markov chain Monte Carlo (MCMC) simulation using the Kirchhoff index, i.e., the sum of the inverse eigenvalues of the Laplacian matrix (as a graph Hamiltonian of the network), we construct more than 1,000 different synchronization-optimized networks. We then show that the transition from star to core-periphery structure depends on the connectivity of the network, and is characterized by the node degree variance of the synchronization-optimized ensemble. We find that thermodynamic properties such as heat capacity show anomalies for sparse networks.

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“…For 92 Zr, Werner et al, reported the pure neutron configuration to the 2 + 1 state, while the second excited quadrupole state shows the signatures of the one-phonon mixed-symmetric 2 + state [40]. The results of an in-beam study of high-spin structure of 94,95 Mo at GASP, Legnaro was reported in [41]. In this work the authors also reported shell model results in π(p 1/2 , g 9/2 , d 5/2 ) and ν(p 1/2 , g 9/2 , g 7/2 , d 5/2 , d 3/2 , s 1/2 ) space.…”

Section: Introductionmentioning

confidence: 96%

High-spin Structures of the Near-spherical Nuclei $^{91,92}$Zr

Srivastava¹

2017

Acta Phys. Pol. B

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In the present work, we have interpreted recently available experimental data for high-spin states of the near-spherical nuclei 91,92 Zr, using the shell-model calculations within the full f 5/2 , p 3/2 , p 1/2 , g 9/2 model space for protons and valence neutrons in g 9/2 , g 7/2 , d 5/2 orbits. We have employed a truncation for the neutrons due to huge matrix dimensions, by allowing one neutron excitation from g 9/2 orbital to d 5/2 and g 7/2 orbitals. Results are in good agreement with the available experimental data. Thus, theoretically, we have identified the structure of many high-spin states, which were tentatively assigned in the recent experimental work. The 91 Zr 21/2 + isomer lies at low-energy region due to fully aligned spins of two g 9/2 protons and one d 5/2 neutron.

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High-spin level structure inMo94,95

Abstract: High-spin level structures of 94,95

Cited by 23 publications

References 24 publications

Dynamical Local Lattice Instability Triggered High T_cSuperconductivity

Dynamical Local Lattice Instability Triggered High T_cSuperconductivity

Thermodynamic characterization of synchronization-optimized oscillator networks

High-spin Structures of the Near-spherical Nuclei $^{91,92}$Zr

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High-spin level structure inMo94,95

Abstract: High-spin level structures of 94,95

Cited by 23 publications

References 24 publications

Dynamical Local Lattice Instability Triggered High TcSuperconductivity

Dynamical Local Lattice Instability Triggered High TcSuperconductivity

Thermodynamic characterization of synchronization-optimized oscillator networks

High-spin Structures of the Near-spherical Nuclei $^{91,92}$Zr

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Dynamical Local Lattice Instability Triggered High T_cSuperconductivity

Dynamical Local Lattice Instability Triggered High T_cSuperconductivity