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The proximity induced superconducting (S) correlations in ferromagnetic (F) layers of planar S/F hybrids are shown to be responsible for the appearance of a nonlinear interaction between the magnetic moments of the F layers. This…

Superconductivity · Physics 2025-05-07 A. A. Kopasov , S. V. Mironov , A. S. Mel'nikov

The effects of lithium absorption on the crystal structure and electronic properties of IrSi3, a binary silicide with a noncentrosymmetric crystal structure, were studied. X-ray and neutron diffraction experiments revealed that hexagonal…

Superconductivity · Physics 2014-08-27 S. Pyon , K. Kudo , J. Matsumura , H. Ishii , G. Matsuo , M. Nohara , H. Hojo , K. Oka , M. Azuma , V. O. Garlea , K. Kodama , S. Shamoto

In the archetypal monolayer semiconductor WSe$_2$, the distinct ordering of spin-polarized valleys (low-energy pockets) in the conduction band allows for studies of not only simple neutral excitons and charged excitons (i.e., trions), but…

Materials Science · Physics 2022-08-15 Dinh Van Tuan , Su-Fei Shi , Xiaodong Xu , Scott A. Crooker , Hanan Dery

We report on experimental observation of next-nearest-neighbour coupling between ballistically expanding spinor exciton-polariton condensates in a planar semiconductor microcavity. All-optical control over the coupling strength between…

Mesoscale and Nanoscale Physics · Physics 2024-08-05 Dmitriy Dovzhenko , Denis Aristov , Lucy Pickup , Helgi Sigurdsson , Pavlos G. Lagoudakis

We study why gold forms planar and cage-like clusters while copper and silver do not. We use density functional theory and norm-conserving pseudo-potentials with and without a scalar relativistic component. For the exchange-correlation…

Other Condensed Matter · Physics 2007-05-23 Eva M. Fernandez , Jose M. Soler , L. C. Balbas

We present an ab initio full-potential linearized augmented plane-wave (FLAPW) study of the structural and electronic properties of the two bulk unstable compounds FeSi (CsCl structure) and FeSi$_2$ (CaF$_2$ structure) which have recently…

Condensed Matter · Physics 2007-05-23 K. A. Mader , H. von Kanel , A. Baldereschi

Most superconducting materials have an inversion center in their crystal lattices. One of few exceptions is the recently discovered heavy-fermion superconductor CePt3Si [E. Bauer et al, Phys. Rev. Lett. 92, 027003 (2004)]. In this paper, we…

Superconductivity · Physics 2009-11-10 K. V. Samokhin , E. S. Zijlstra , S. K. Bose

The physical process creating layered structure in planetary rocky bodies is considered here to be multicomponent solidification. This is a unified alternative approach to the present interpretations where each layer is reasoned and matched…

Geophysics · Physics 2007-05-23 A. Aitta

Magnetic order of the manganese and rare-earth lattices according to different symmetry representations is observed in multiferroic hexagonal (h-) DyMnO$_3$ by optical second harmonic generation and neutron diffraction. The incompatibility…

Strongly Correlated Electrons · Physics 2012-08-08 C. Wehrenfennig , D. Meier , Th. Lottermoser , Th. Lonkai , J. -U. Hoffmann , N. Aliouane , D. N. Argyriou , M. Fiebig

We construct families of fundamental, dipole, and tripole solitons in the fractional Schr\"{o}dinger equation (FSE)\ incorporating self-focusing cubic and defocusing quintic terms modulated by factors $\cos ^{2}x$ and $\sin^{2}x$,…

Pattern Formation and Solitons · Physics 2021-11-02 Liangwei Zeng , Dumitru Mihalache , Boris A. Malomed , Xiaowei Lu , Yi Cai , Qifan Zhu , Jingzhen Li

The observation of substantially enhanced superconductivity of single-layer FeSe films on SrTiO3 has stimulated intensive research interest. At present, conclusive experimental data on the corresponding electron-boson interaction is still…

Using first-principles density functional theory calculations, we investigate a family of stable two-dimensional crystals with chemical formula $A_2B_2$, where $A$ and $B$ belong to groups IV and V, respectively ($A$ = C, Si, Ge, Sn, Pb;…

Materials Science · Physics 2018-08-01 B. Ozdamar , G. Ozbal , M. N. Cinar , K. Sevim , G. Kurt , B. Kaya , H. Sevincli

We propose a new type of a chiral metamaterial based on an ensemble of artificial molecules formed by three identical quantum-dots in a triangular arrangement. A static magnetic field oriented perpendicular to the plane breaks mirror…

Mesoscale and Nanoscale Physics · Physics 2014-12-04 Panagiotis Kotetes , Pei-Qing Jin , Michael Marthaler , Gerd Schön

Strongly interacting binary mixtures of superparamagnetic colloidal particles confined to a two-dimensional water-air interface are examined by theory, computer simulation and experiment. The mixture exhibits a partial clustering in…

Soft Condensed Matter · Physics 2009-11-11 Norman Hoffmann , Florian Ebert , Christos N. Likos , Hartmut Löwen , Georg Maret

We determined the structures of silicon clusters in the 11-14 atom size range using the tight-binding molecular dynamics method. These calculations reveal that \Si{11} is an icosahedron with one missing cap, \Si{12} is a complete…

chem-ph · Physics 2016-08-31 Jun Pan , Atul Bahel , Mushti V. Ramakrishna

Achieving long-range ferrimagnetic order in purely organic systems remains a major challenge in molecular magnetism. Here we report the synthesis and characterization of heterospin-coupling motifs, formed by covalently linking spin-1/2 and…

Mesoscale and Nanoscale Physics · Physics 2026-04-10 Elia Turco , Fupeng Wu , Annika Bernhardt , Nils Krane , Ji Ma , Roman Fasel , Michal Juriček , Xinliang Feng , Pascal Ruffieux

Among the wealth of single fluorescent defects recently detected in silicon, the G center catches interest for its telecom single-photon emission that could be coupled to a metastable electron spin triplet. The G center is a unique defect…

Topological superconductivity is the quantum condensate of paired electrons with an odd parity of the pairing function. One of the candidates is the triplet pairing superconductor derived from topological insulator Bi2Se3 by chemical…

Superconductivity · Physics 2017-04-11 Guan Du , Yufeng Li , J. Schneeloch , R. D. Zhong , Genda Gu , Huan Yang , Hai-Hu Wen

Appearance of strong spin-orbit coupling (SOC) is apparent in ternary equiatomic compounds with 5$d$-electrons due to the large atomic radii of transition metals. SOC plays a significant role in the emergence of unconventional…

A new type of compositionally complex (medium- or high-entropy) M5Si3 silicides is synthesized. Both (V1/5Cr1/5Nb1/5Ta1/5W1/5)5Si3 and (Ti1/5Zr1/5Nb1/5Mo1/5Hf1/5)5Si3 form single-phase homogenous solid solutions. Notably,…

Materials Science · Physics 2021-12-16 Sashank Shivakumar , Mingde Qin , Dawei Zhang , Chongze Hu , Qizhang Yan , Jian Luo