Attosecond XUV probing of vibronic quantum superpositions in Br2+
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.051102
Abstract: Ultrafast laser excitation can create coherent superpositions of electronic states in molecules and trigger ultrafast flow of electron density on a few femtosecond timescale. While recent attosecond experiments have addressed real-time observation of these primary… read more here.
Keywords: ensuremath; quantum; attosecond xuv; mathrm ensuremath ... See more keywords
Anisotropic magnetic entropy change in the hard ferromagnetic semiconductor VI3
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.094402
Abstract: Layered $\mathrm{V}{\mathrm{I}}_{3}$ has emerged as a new two-dimensional (2D) van der Waals bonded ferromagnetic semiconductor, which is an important class of materials for spintronics applications. However, the origin of ferromagnetism in $\mathrm{V}{\mathrm{I}}_{3}$ is still missing.… read more here.
Keywords: ensuremath; entropy change; mathrm ensuremath; mathrm ... See more keywords
Superconductivity in Ru-doped CuIr2Te4 telluride chalcogenide
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.174504
Abstract: Here we report the effect of structural and superconductivity properties on Ru-doped $\mathrm{CuI}{\mathrm{r}}_{2}\mathrm{T}{\mathrm{e}}_{4}$ telluride chalcogenide. X-ray diffraction results suggest that $\mathrm{CuI}{\mathrm{r}}_{2\ensuremath{-}x}\mathrm{R}{\mathrm{u}}_{x}\mathrm{T}{\mathrm{e}}_{4}$ maintains the disordered trigonal structure with space group $P\overline{3}m1$ (no. 164) for $x$ \ensuremath{\le}… read more here.
Keywords: superconductivity; mathrm mathrm; mathrm cui; mathrm ensuremath ... See more keywords
Photoinduced topological phase transition and optical conductivity of black phosphorene
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DOI: 10.1103/physrevb.101.035137
Abstract: We theoretically study the photoinduced topological phase transition of black phosphorene induced by laser light with moderate intensity, which can satisfy the experimentally realistic requirement to preserve the quality of the sample. By deriving the… read more here.
Keywords: ensuremath; optical conductivity; ensuremath omega; mathrm ensuremath ... See more keywords
High-pressure synthesis of heavily hole-doped cuprates Mg1−xLixCu2O3 with quasi-one-dimensional structure
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.245112
Abstract: We investigate electronic properties of hole-doped cuprates ${\mathrm{Mg}}_{1\ensuremath{-}x}{\mathrm{Li}}_{x}{\mathrm{Cu}}_{2}{\mathrm{O}}_{3}$ with the quasi-one-dimensional two-leg-ladder structure. We succeeded in extending the solubility limit of Li in ${\mathrm{Mg}}_{1\ensuremath{-}x}{\mathrm{Li}}_{x}{\mathrm{Cu}}_{2}{\mathrm{O}}_{3}$ from $x=0.12$ to $x=0.60$ by using the high-pressure synthesis technique. The… read more here.
Keywords: hole doped; mathrm ensuremath; doped cuprates; mathrm ... See more keywords
Comprehensive study of the global phase diagram of the J−K−Γ model on a triangular lattice
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DOI: 10.1103/physrevb.103.054410
Abstract: The celebrated Kitaev honeycomb model provides an analytically tractable example with an exact quantum spin liquid ground state. While in real materials, other types of interactions besides the Kitaev coupling ($K$) are present, such as… read more here.
Keywords: phase; ensuremath gamma; mathrm ensuremath;
Influence of phonon renormalization in Eliashberg theory for superconductivity in two- and three-dimensional systems
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DOI: 10.1103/physrevb.103.064511
Abstract: Eliashberg's foundational theory of superconductivity is based on the application of Migdal's approximation, which states that vertex corrections to lowest-order electron-phonon scattering are negligible if the ratio between phonon and electron energy scales is small.… read more here.
Keywords: mathrm ensuremath; ensuremath omega; theory; ensuremath ... See more keywords
Broadband optical conductivity of the chiral multifold semimetal PdGa
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DOI: 10.1103/physrevb.103.115206
Abstract: We present an optical conductivity study of the multifold semimetal PdGa, performed in a broad spectral range ($100--20 000 {\mathrm{cm}}^{\ensuremath{-}1}$; 12 meV--2.5 eV) down to $T=10$ K. The conductivity at frequencies below $4000 {\mathrm{cm}}^{\ensuremath{-}1}$ is… read more here.
Keywords: semimetal pdga; mathrm ensuremath; multifold semimetal; optical conductivity ... See more keywords
Theoretical evidence for the Peierls transition in NbO2
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DOI: 10.1103/physrevb.104.035128
Abstract: We show by advanced electronic structure calculations that ${\mathrm{NbO}}_{2}$ essentially is a Peierls-type material. After simulating the rutile as well as the body-centered tetragonal phase with the Bethe-Salpeter equation, we are able to reproduce the… read more here.
Keywords: mathrm ensuremath; evidence peierls; ensuremath gamma; theoretical evidence ... See more keywords
Topological charge scaling at a quantum phase transition
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DOI: 10.1103/physrevb.104.l020405
Abstract: We reexamine the Kosterlitz-Thouless phase transition in the ground state $|{\mathrm{\ensuremath{\Psi}}}_{0}\ensuremath{\rangle}$ of an antiferromagnetic spin-$\frac{1}{2}$ Heisenberg chain with nearest- and next-nearest-neighbor interactions $\ensuremath{\lambda}$ from a different perspective: After defining winding number (topological charge) $W$ in… read more here.
Keywords: ensuremath lambda; psi ensuremath; mathrm ensuremath; ensuremath ... See more keywords
Raman spectrum of plutonium dioxide: Vibrational and crystal field modes
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.104307
Abstract: The Raman spectrum of plutonium dioxide is studied both experimentally and theoretically. Particular attention has been devoted to the identification of high-energy modes at 2110 and $2620\phantom{\rule{0.16em}{0ex}}\mathrm{c}{\mathrm{m}}^{\ensuremath{-}1}$, whose attribution has so far been controversial. The… read more here.
Keywords: raman spectrum; ensuremath; mathrm ensuremath; plutonium dioxide ... See more keywords