Results 101 to 110 of about 182,622 (338)

Transverse chiral magnetic photocurrent induced by linearly polarized light in mirror-symmetric Weyl semimetals

Physical Review Research, 2020
A class of photocurrents is predicted to occur in both type-I and type-II Weyl semimetals. Unlike the previously studied photocurrents in chiral materials, the proposed current requires neither circularly polarized light nor an absence of symmetry with ...
Sahal Kaushik, Dmitri E. Kharzeev, Evan John Philip   +2 more
doaj   +1 more source

Band gap opening by two-dimensional manifestation of Peierls instability in graphene

, 2011
Using first-principles calculations of graphene having high-symmetry distortion or defects, we investigate band gap opening by chiral symmetry breaking, or intervalley mixing, in graphene and show an intuitive picture of understanding the gap opening in ...
Ajiki H., Bai J., Balog R., Barbier M., Barone V., Brey L., Castro Neto A. H., Chamon C., Choi S.-M., Ezawa M., Geim A. K., Guinea F., Heejun Yang, Hoffmann R., Hou C.-Y., Hyun-Jong Chung, Jaikwang Shin, Jinseong Heo, Kim M., Kresse G., Kresse G., Mañes J. L., Mintmire J. W., Nambu Y., Novoselov K. S., Okahara K., Park C.-H., Pauling L., Pedersen T. G., Peierls R. F., Pereira V. M., Pereira V. M., Perkins D. H., Ponomarenko L. A., Ryu S., Schwierz F., Semenoff G. W., Son Y.-W., Su W. P., Sunae Seo, Sung-Hoon Lee, U-In Chung, Zhang Y., Zhou S. Y.   +43 more
core   +1 more source

Chiral SURMOFs for Vibrational Circular Dichroism: Multiscale Modeling and Experimental Insights

Advanced Functional Materials, EarlyView.
The use of solid‐state vibrational circular dichroism (VCD) for MOFs is still somewhat unexplored, and in this work, it is shown that chiral surface‐anchored MOFs (SURMOFs) grown on CaF2 provide an excellent platform for VCD. Experimental results are validated through multiscale modeling, showing strong agreement across multiple spectroscopic ...
Ana C. Fingolo, Nadine von Coelln, Benedikt Zerulla, Marjan Krstić, Christian Huck, Thomas G. Mayerhöfer, Christoph Krafft, Petra Tegeder, Carsten Rockstuhl, Christof Wöll   +9 more
wiley   +1 more source

Dimensionally Resolved Nanostructures of an Atomically Precise and Optically Active 1D van der Waals Helix

Advanced Materials, EarlyView.
The ability to grow nanostructures based on inorganic helical crystals with long‐range order will enable a platform to realize physical states that arise from chirality. Herein, it is demonstrated that controlled vapor phase deposition of an atomically precise helical crystal, GaSI, into ultrathin 1D nanowires and quasi‐2D nanoribbons.
Kaitlyn G. Dold, Joni Spencer, Griffin M. Milligan, Sirisak Singsen, Zhe Wang, Marcus Marracci, Dmitri Leo Mesoza Cordova, Thanh N. Huynh, Kaleolani Ogura, Toshihiro Aoki, Xingxu Yan, Dmitry A. Fishman, Xiaoqing Pan, Ruqian Wu, Elizabeth M. Y. Lee, Maxx Q. Arguilla   +15 more
wiley   +1 more source

Abelian duality, confinement, and chiral symmetry breaking in QCD(adj)

, 2007
We analyze the vacuum structure of SU(2) QCD with multiple massless adjoint representation fermions formulated on a small spatial $S^1 \times \R^3$. The absence of thermal fluctuations, and the fact that quantum fluctuations favoring the vacuum with ...
Unsal, Mithat
core   +1 more source

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

Advanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens, Francisco Romero‐Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas‐Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual   +8 more
wiley   +1 more source

Chiral symmetry restoration and the ultraquantum limit of axionic Charge Density Waves in Weyl Semimetals

Journal of High Energy Physics
A new mechanism for chiral symmetry restoration at extreme high magnetic fields is proposed in the context of the Magnetic Catalysis scenario in Weyl Semimetals.
Joan Bernabeu, Alberto Cortijo
doaj   +1 more source

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz

Advanced Materials, EarlyView.
Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim, In‐Kook Hwang, Kyoung‐Woong Moon, Kyongmo An, Kyung‐Jin Lee, Jae‐Hyeon Ko, Byong‐Guk Park, Kwang‐Yong Choi, Chanyong Hwang   +8 more
wiley   +1 more source

Tuning chirality amplitude at ultrafast timescales in chiral CsCuCl_{3}

Physical Review Research
Chirality is a fundamental symmetry concept relevant to many scientific fields. It describes discrete states, i.e., left-handed, right-handed, or achiral. In contrast to this discrete classification, objects can be continuously distorted. To describe the
Hiroki Ueda, Takahiro Sato, Quynh L. Nguyen, Elizabeth Skoropata, Ludmila Leroy, Tim Suter, Elsa Abreu, Matteo Savoini, Vincent Esposito, Matthias Hoffmann, Carl P. Romao, Julien Zaccaro, Diling Zhu, Steven Lee Johnson, Urs Staub   +14 more
doaj   +1 more source

Unbreaking chiral symmetry

Physical Review D, 2011
In Quantum Chromodynamics (QCD) the eigenmodes of the Dirac operator with small absolute eigenvalues have a close relationship to the dynamical breaking of the chiral symmetry. In a simulation with two dynamical quarks, we study the behavior of meson propagators when removing increasingly more of those modes in the valence sector, thus partially ...
Lang, C. B., Schröck, Mario
openaire   +2 more sources