Results 81 to 90 of about 65,692 (330)

Influence of Hysteresis on Magnetocaloric Performance at Cryogenic Temperatures: A Tb3Ni Case Study

Advanced Functional Materials, EarlyView.
The existence of an inverse magnetocaloric effect in metamagnetic materials at cryogenic temperatures is investigated using multiple methods. Contrary to predictions from magnetization data, neither specific heat nor pulsed‐field measurements show such a cooling effect, instead indicating irreversible heating.
Timo Niehoff, Benedikt Beckmann, Konstantin Skokov, Aritz Herrero, Alberto Oleaga, Eduard Bykov, Catalina Salazar Mejía, Marc Straßheim, Oliver Gutfleisch, J. Wosnitza, Tino Gottschall   +10 more
wiley   +1 more source

Multi-spinon and antiholon excitations probed by resonant inelastic x-ray scattering on doped one-dimensional antiferromagnets

New Journal of Physics, 2018
Resonant inelastic x-ray scattering (RIXS) at the oxygen K -edge has recently accessed multi-spinon excitations in the one-dimensional antiferromagnet (1D-AFM) Sr _2 CuO _3 , where four-spinon excitations are resolved separately from the two-spinon ...
Umesh Kumar, Alberto Nocera, Elbio Dagotto, Steve Johnston   +3 more
doaj   +1 more source

Effect of Co-Doping on the Magnetic Ground State of the Heavy-Fermion System CeCu₂Ge₂ Studied by Neutron Diffraction

Magnetochemistry, 2023
The antiferromagnetic phase transition of the heavy-fermion system Ce(Cu1−xCox)2Ge2 for x = 0.05 and 0.2, showing up in specific heat, magnetic susceptibility, and muon spin relaxation (μSR) data, has been further investigated.
Rajesh Tripathi, Dmitry Khalyavin, Shivani Sharma, Devashibhai Thakarshibhai Adroja, Zakir Hossain   +4 more
doaj   +1 more source

Antiferromagnetism and Superconductivity in CeRhIn$_5$

, 2011
We discuss recent results on the heavy fermion superconductor CeRhIn$_5$ which presents ideal conditions to study the strong coupling between the suppression of antiferromagnetic order and the appearance of unconventional superconductivity.
Aso N., Bao W., Bao W., Bauer E., Bauer E. D., Bauer E. D., Christianson A. D., Cornelius A. L., Daniel M., Demler E., Demuer A., Donath J. G., Goh S. K., Harrison N., Holmes A. T., Kawasaki S., Kim J. S., Knebel G., Knebel G., Knebel G., Knebel G., Knebel G., Light B. E., Mathur N. D., Mendonça Ferreira L., Mito T., Miyake K., Monthoux P., Monthoux P., Moriya T., Ohira-Kawamura S., Paglione J., Pagliuso P. G., Park T., Park T., Park T., Park V. A., Pedrazzini P., Pham L. D., Pépin C., Raymond S., Raymond S., Sachdev S., Shishido H., Takeuchi T., Urbano R. R., Yashima M., Yashima M., Yuan H. Q., Zapf V. S., Zhang Y.   +50 more
core   +1 more source

Direct evidence for a gapless $Z_2$ spin liquid by frustrating Néel antiferromagnetism [PDF]

, 2013
By direct calculations of the spin gap in the frustrated Heisenberg model on the square lattice, with nearest- ($J_1$) and next-nearest-neighbor ($J_2$) super-exchange couplings, we provide a solid evidence that the spin-liquid phase in the frustrated ...
Wenjun Hu, F. Becca, A. Parola, S. Sorella   +3 more
semanticscholar   +1 more source

High Performance Room Temperature Multiferroic Properties of w‐MnSe Altermagnet

Advanced Functional Materials, EarlyView.
Using first‐principles calculations, for the first time the Altermagneto‐Ferroelectric Coupling Effect (AFCE) is proposed, which enables control of both electric polarization and spin splitting in the band structure due to polyhedral rotations. This uncovers robust multiferroicity in wurtzite MnSe at room temperature, offering an exciting route for ...
Djamel Bezzerga, Imran Khan, Jisang Hong
wiley   +1 more source

Topological Weyl semimetals in the chiral antiferromagnetic materials Mn3Ge and Mn3Sn

New Journal of Physics, 2017
Recent experiments revealed that Mn _3 Sn and Mn _3 Ge exhibit a strong anomalous Hall effect at room temperature, provoking us to explore their electronic structures for topological properties.
Hao Yang, Yan Sun, Yang Zhang, Wu-Jun Shi, Stuart S P Parkin, Binghai Yan   +5 more
doaj   +1 more source

Hall effect measurements on epitaxial SmNiO 3 thin films and implications for antiferromagnetism [PDF]

, 2013
The rare-earth nickelates (RNiO3) exhibit interesting phenomena such as unusual antiferromagnetic order at wavevector q = (1/2, 0, 1/2) and a tunable insulator-metal transition that are subjects of active research.
S. Ha, Rafael Jaramillo, Daniel Silevitch, F. Schoofs, K. Kerman, J. Baniecki, S. Ramanathan   +6 more
semanticscholar   +1 more source

Modulating Oxide‐Based Quantum Materials by Ion Implantation

Advanced Functional Materials, EarlyView.
This review highlights how ion implantation, a well developed chip‐technology, enables targeted modulation of oxide‐based quantum materials. This includes tuning of metal‐insulator transitions, magnetism, and superconductivity through selective doping, defect creation, and induced lattice strain. Abstract Ion implantation has emerged as a powerful tool
Andreas Herklotz, Thomas Zac Ward, Shengqiang Zhou   +2 more
wiley   +1 more source

AC/DC Susceptibility of the Heavy-Fermion Superconductor CePt3Si under Pressure

, 2007
We have investigated the pressure dependence of ac and dc susceptibilities of the heavy-fermion superconductor CePt3Si (Tc= 0.75 K) that coexists with antiferromagnetism (TN = 2.2 K). As hydrostatic pressure is increased, Tc first decreases rapidly, then
Bauer E., Bonalde I., Fujimoto S., Gribanov A. V., Hayashi N., Izawa K., Kim J. S., Motoyama G., Nakatsuji K., Nicklas M., Scheidt E.-W., Takeuchi T., Tateiwa N., Ueda K., Yanase Y., Yasuda T., Yogi M.   +16 more
core   +1 more source