English
Related papers

Related papers: Exchange-striction driven ultrafast nonthermal lat…

200 papers

Interfacing complex oxides in atomically engineered layered structures can give rise to a wealth of exceptional electronic and magnetic properties that surpass those of the individual building blocks. Herein, we demonstrate a ferromagnetic…

We report a high-resolution neutron diffraction study of the crystal and magnetic structure of the orbitally-degenerate frustrated metallic magnet AgNiO2. At high temperatures the structure is hexagonal with a single crystallographic Ni…

Strongly Correlated Electrons · Physics 2009-11-13 E. Wawrzynska , R. Coldea , E. M. Wheeler , T. Sorgel , M. Jansen , R. M. Ibberson , P. G. Radaelli , M. M. Koza

The breaking of spatial inversion symmetry in condensed matter gives rise to intriguing physical properties, such as ferroelectricity, piezoelectricity, spin-momentum locking, and nonreciprocal responses. Here we propose that a…

The pressure-temperature phase diagram of the heavy-electron superconductor URu2Si2 has been reinvestigated by ac-susceptibility and elastic neutron-scattering (NS) measurements performed on a small single-crystalline rod (2 mm in diameter,…

Strongly Correlated Electrons · Physics 2009-11-11 H. Amitsuka , K. Matsuda , I. Kawasaki , K. Tenya , M. Yokoyama , C. Sekine , N. Tateiwa , T. C. Kobayashi , S. Kawarazaki , H. Yoshizawa

In spin transport experiments with spin currents propagating through antiferromagnetic (AFM) material, the antiferromagnet is treated as a mainly passive spin conductor not generating nor adding any spin current to the system. The spin…

$\delta$-Bi$_2$O$_3$ is one of the fastest known solid oxide ion conductors owing to its intrinsically defective fluorite-like structure with 25\% vacant sites in the O sub-lattice. Numerous diffraction measurements and molecular dynamics…

Materials Science · Physics 2022-05-27 Rituraj Sharma , Nimrod Benshalom , Maor Asher , Thomas M. Brenner , Anna Kossi , Omer Yaffe , Roman Korobko

Envisaging antiferromagnetic spintronics pivots on two key criteria of high transition temperature and tuning of underlying magnetic order using straightforward application of magnetic field or electric current. Here, we show that NiSi…

Materials Science · Physics 2023-05-03 P. Ghosh , J. Guo , F. Ye , T. Heitmann , S. Kelley , A. Ernst , V. Dugaev , D. K. Singh

Simultaneous control of structural and physical properties via applied electrical current poses a key, new research topic and technological significance. Studying the spin-orbit-coupled antiferromagnet Ca2RuO4, with 3% Mn doping to weaken…

Strongly Correlated Electrons · Physics 2019-12-18 Hengdi Zhao , Bing Hu , Feng Ye , Christina Hoffmann , Itamar Kimchi , Gang Cao

Revealing the predominant driving force behind symmetry breaking in correlated materials is sometimes a formidable task due to the intertwined nature of different degrees of freedom. This is the case for La2-xSrxNiO4+{\delta} in which…

Ultrafast light pulses can modify the electronic properties of quantum materials by perturbing the underlying, intertwined degrees of freedom. In particular, iron-based superconductors exhibit a strong coupling among electronic nematic…

Here, we report both ac and dc magnetization, thermodynamic and electric properties of hexagonal Ba$_3$NiIr$_2$O$_9$. The Ni$^{2+}$ (spin-1) forms layered triangular-lattice and interacts antiferromagnetically while Ir$^{5+}$ is believed to…

Strongly Correlated Electrons · Physics 2021-07-14 Shobha Gondh , Manju Mishra Patidar , Kranti Kumar , M. P. Saravanan , V. Ganesan , A. K. Pramanik

We investigate exotic paired states of spin-imbalanced Fermi gases in anisotropic lattices, tuning the dimension between one and three. We calculate the finite temperature phase diagram of the system using real-space dynamical mean-field…

Quantum Gases · Physics 2013-07-09 Miikka O. J. Heikkinen , Dong-Hee Kim , Päivi Törmä

We have employed Soft and Hard X-ray Resonant Magnetic Scattering and Polarised Neutron Diffraction to study the magnetic interface and the bulk antiferromagnetic domain state of the archetypal epitaxial Ni$_{81}$Fe$_{19}$(111)/CoO(111)…

The ZrSiS-class of layered materials offer interesting topological and magnetic characteristics suitable for spintronics applications. In this work, we have synthesized a polycrystalline NdBiTe using solid-state reaction technique and have…

Strongly Correlated Electrons · Physics 2024-10-02 Prabuddha Kant Mishra , Shivani Kumawat , Soumyakanta Panda , Niharika Mohapatra , B K Mani , Ashok Kumar Ganguli

Nickelate materials offer diverse functionalities for energy and computing applications. Lithium nickel oxide (LiNiO$_2$) is an archetypal layered nickelate, but the electronic structure of this correlated material is not yet fully…

Understanding the microscopic spatio-temporal dynamics of nonequilibrium charge carriers in heterosystems promises optimization of process and device design towards desired energy transfer. Hot electron transport is governed by scattering…

We report inelastic neutron scattering experiments on a single crystal of the intermediate valence compound CePd3. At 300 K the magnetic scattering is quasielastic, with halfwidth of 23 meV, and is independent of momentum transfer Q. At low…

Using determinantal quantum Monte Carlo, we compute the properties of a lattice model with spin $\frac 1 2$ itinerant electrons tuned through a quantum phase transition to an Ising nematic phase. The nematic fluctuations induce…

Strongly Correlated Electrons · Physics 2017-05-24 Samuel Lederer , Yoni Schattner , Erez Berg , Steven A. Kivelson

In quantum materials, degeneracies and frustrated interactions can have a profound impact on the emergence of long-range order, often driving strong fluctuations that suppress functionally relevant electronic or magnetic phases. Engineering…

Strongly Correlated Electrons · Physics 2023-08-07 A. S. Disa , J. Curtis , M. Fechner , A. Liu , A. von Hoegen , M. Först , T. F. Nova , P. Narang , A. Maljuk , A. V. Boris , B. Keimer , A. Cavalleri

The insulator-to-metal transition continues to be a challenging subject, especially when electronic correlations are strong. In layered compounds, such as La2-xSrxNiO4 and La2-xBaxCuO4, the doped charge carriers can segregate into…