Results 81 to 90 of about 35,127 (280)

Two Distinct Phonon Wave Effects Control Thermal Transport across the Coherent–Incoherent Regime in Superlattices

Advanced Science, EarlyView.
Thermal transport in smooth‐interface superlattices is studied using the phonon Wigner transport equation, which captures both particle‐like and wave‐like contributions. A minimum in cross‐plane thermal conductivity emerges with increasing period thickness, signaling a crossover from coherent to incoherent phonon transport.
Jin Yang, Jingyi Zhu, Alan J. H. McGaughey, Wee‐Liat Ong   +3 more
wiley   +1 more source

Strong-Coupling Theory of Rattling-Induced Superconductivity

, 2011
In order to clarify the mechanism of the enhancement of superconducting transition temperature $T_{\rm c}$ due to anharmonic local oscillation of a guest ion in a cage composed of host atoms, i.e., {\it rattling}, we analyze the anharmonic Holstein model
Avila M. A., Avila M. A., Chang J., Dahm T., Eliashberg G. M., Fuse T., Goto T., Hasegawa T., Hattori K., Hattori K., Hattori K., Hattori K., Hiroi Z., Hiroi Z., Hiroi Z., Hiroi Z., Hotta T., Hotta T., Hotta T., Hotta T., Hotta T., Hotta T., Kotegawa H., Kuneš J., McMillan W. L., Migdal A. B., Mitsumoto K., Mutka H., Nagao Y., Oshiba K., Sales B. C., Sanada S., Saramat A., Sasai K., Takasu Y., Yonezawa S., Yonezawa S., Yonezawa S., Yoshida M., Yotsuhashi S.   +39 more
core   +1 more source

Scrambling‐Enhanced Quantum Battery Charging in Black Hole Analogues

Advanced Science, EarlyView.
By employing a black‐hole‐analog quantum battery constructed from a position‐dependent XY model, its dynamical behavior is investigated through a quench of the scrambling parameter. It is systematically quantified that how the simulated scrambling improves key performance metrics‐namely, stored energy, peak power, and charging time‐thereby offering a ...
Zhilong Liu, Ying Li, Zehua Tian, Jieci Wang   +3 more
wiley   +1 more source

Two-vibron bound states in alpha-helix proteins : the interplay between the intramolecular anharmonicity and the strong vibron-phonon coupling

, 2003
The influence of the intramolecular anharmonicity and the strong vibron-phonon coupling on the two-vibron dynamics in an $\alpha$-helix protein is studied within a modified Davydov model.
A. C. Scott, A. C. Scott, A. J. Sievers, A. S. Davydov, A. S. Davydov, D. W. Brown, F. Bogani, H. Frochlich, H. Okuyama, I. G. Lang, J. C. Kimball, J. Edler, J. Edler, J. Tekic, L. Cruzeiro-Hansson, L. Cruzeiro-Hansson, L. Cruzeiro-Hansson, L. Cruzeiro-Hansson, P. Guyot-Sionnest, P. Jakob, P. Jakob, P. Jakob, P. Jakob, P. Jakob, R. Honke, R. P. Chin, R. S. MacKay, S. Aubry, S. Flach, V. Pouthier, V. Pouthier, V. Pouthier, V. Pouthier, V. Pouthier, V. Pouthier, W. Forner, Z. Ivic, Z. Ivic   +37 more
core   +2 more sources

Giant Isotope Effect in Metal–Organic Frameworks Boosts Unprecedented Photo‐ and Radio‐Luminescence Enhancement

Advanced Science, EarlyView.
Deuterated MOFs in this work exhibited unprecedented giant luminescence isotope effect via O─H oscillator suppression, achieving maximal solid‐state materials emission enhancement. This yields significantly improved X‐ray detection sensitivity and imaging resolution, marking the first integration of MOFs with isotopic luminescence and opening new ...
Junhao Lu, Dan Zhou, Xianhuan Hao, Hao Lu, Zhongyuan Zhang, Yuhuan Jia, Sen Mei, Ye Huang, Songbai Tang, Zhiyong Peng, Lanhua Chen, Mengjia Yuan, Lixi Chen, Shuaihua Wang, Meiling Feng, Yanlong Wang, Shuao Wang   +16 more
wiley   +1 more source

A Si‐MoSe2 Heterostructured Anode with Enhanced Thermal Transport and Electrochemical Performance for Liquid and All‐Solid‐State Lithium‐Ion Batteries

Advanced Science, EarlyView.
Chemically bonded Si@MoSe2@C heterointerfaces with robust Si─Se─Mo bonds enable high‐performance Si anodes. Lattice‐matched MoSe2 on porous Si with carbon‐protective coating delivers 1054 mAh g−1 after 100 cycles and 99.5% Coulombic efficiency over 400 cycles.
Yajun Zhu, Jiaqi Gu, Guangwu Zhang, Tianli Han, Yang Lu, Zhongbing Li, Hang Su, Fei Wang, Haojun Xu, Wentuan Bi, Qiye Zheng, Jinyun Liu   +11 more
wiley   +1 more source

Anharmonic Coordinates [PDF]

The Mathematical Gazette, 1909
Hamilton, in his Elements of Quaternions (Book I. Chapter II.), developed this system of coordinates, by means of his vectorial algebra, in connection with his theory of geometrical nets. In the following paper I have re-proved the fundamental theorems, by
openaire   +1 more source

Lattice Dynamics Across the High‐Pressure Phase Transition in CrTe

Advanced Electronic Materials, EarlyView.
ABSTRACT High‐pressure physics provides a powerful means of tuning interatomic interactions, enabling the discovery of novel structural and physical phenomena in materials. Chromium telluride, a transition metal chalcogenide, is particularly responsive to such external stimuli, exhibiting a broad spectrum of pressure‐, temperature‐, and stoichiometry ...
Costanza Borghesi, Giacomo Giorgi, Daniele Varsano, Riccardo Rurali   +3 more
wiley   +1 more source

Integrated Experimental and Theoretical Insights into Defect‐Induced Functionalities of Cobalt Doped NiO for Multifunctional Solar‐Driven Applications

Advanced Energy and Sustainability Research, EarlyView.
Rational defect engineering in Co‐doped NiO nanostructures, synthesized via a sustainable green route, enables precise bandgap modulation and defect‐state tailoring. Combined experimental–density functional theory analysis identifies 15% Co doping as the optimal threshold for maximizing photocatalytic degradation, photothermal response, and hydrogen ...
Sumayya M. Ansari, Hessa Alashkhari, Meira Alabdouli, Zahra Alzadjali, Sara Almuhairi, Narender Kumar, Naveen Kosar, Tariq Mahmood, Adnan Younis   +8 more
wiley   +1 more source

Gap ratio in anharmonic charge-density-wave systems

, 2001
Many experimental systems exist that possess charge-density-wave order in their ground state. While this order should be able to be described with models similar to those used for superconductivity, nearly all systems have a ratio of the charge-density ...
C.M. Varma, D. McWhan, G. Gruner, G. Travaglini, J. Coey, J. Hirsch, J. K. Freericks, J. Tranquada, J. Wilson, J.K. Freericks, J.K. Freericks, J.K. Freericks, J.K. Freericks, J.K. Freericks, J.K. Freericks, J.K. Freericks, L. Testardi, R.J. Cava, R.V. Coleman, S. Blawid, S. Blawid, S. Ciuchi, S. Mori, T. Holstein, Veljko Zlatić, W. Metzner   +25 more
core   +1 more source