Results 201 to 210 of about 404,274 (272)

A class of infinitely divisible positive definite functions on topological groups [PDF]

, 1973
K. Schmidt
openalex   +1 more source

Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States

Advanced Science, EarlyView.
This work proposes a strategy for symmetry breaking of the degenerate OAM states relying on the natural anisotropy of crystal gain, to select the handedness of the spatial spiral phase front and further tunable Raman‐like OAM states by thermal‐driven, which clarifies the contribution of intrinsic crystal property to the OAM states and opens a new route
Tianxiang Meng, Changsheng Zheng, Yongguang Zhao, Haohai Yu, Huaijin Zhang   +4 more
wiley   +1 more source

Chemical applicability and predictive potential of certain graphical indices for determining structure-property relationships in polycrystalline acid magenta (C₂₀H₁₇N₃Na₂O₉S₃). [PDF]

Sci Rep
Tang JH, Hamraz A, Ullah A, Hamed YS, Zaman S, Belay MB.   +5 more
europepmc   +1 more source

Varieties of topological groups generated by solvable and nilpotent groups [PDF]

, 1973
Sidney A. Morris
openalex   +1 more source

Active Sites‐Enriched Hierarchical Weyl Semimetal WTe2 Nanowire Arrays for Highly Efficient Hydrogen Evolution Reaction

Advanced Science, EarlyView.
Weyl semimetal WTe2 possesses high conductivity and robust topological surface states. A controlled synthesis method for carbon fiber‐supported WTe2 and core–shell WO3−x–WTe2 nanowire arrays is proposed. The WTe2 nanowires are highly crystalline, uniform, and vertically aligned, providing abundant active sites and durability in hydrogen evolution ...
Hyeonkyeong Kim, Youngdong Yoo
wiley   +1 more source

Disrupted small-world architecture and altered default mode network topology of brain functional network in college students with subclinical depression. [PDF]

BMC Psychiatry
Zhang B, Liu S, Chen S, Liu X, Ke Y, Qi S, Wei X, Ming D.   +7 more
europepmc   +1 more source

On closed graph theorems in topological spaces and groups [PDF]

, 1979
Marek Wilhelm
openalex   +1 more source

Correlations in Magnetic Sub‐Domains as an Unconventional Phase Diagram for van der Waals Ferromagnets

Advanced Science, EarlyView.
An unconventional magnetic order is observed in exfoliated CrBr3 layers, characterized by vertically correlated planar magnetic sub‐domains. Magnetic force microscopy, ab initio calculations, and micromagnetic simulations indicate that these sub‐domains arise from stacking faults modifying interlayer exchange coupling.
Sergey Y. Grebenchuk, Magdalena Grzeszczyk, Zhaolong Chen, Makars Šiškins, Vladislav Borisov, Manuel Pereiro, Mikhail I. Katsnelson, Olle Eriksson, Kostya S. Novoselov, Maciej Koperski   +9 more
wiley   +1 more source

Unconventional magnons in collinear magnets dictated by spin space groups. [PDF]

Nature
Chen X, Liu Y, Liu P, Yu Y, Ren J, Li J, Zhang A, Liu Q.   +7 more
europepmc   +1 more source

Maps between topological groups that are homotopic to homomorphisms [PDF]

, 1972
Wladimiro Scheffer
openalex   +1 more source