Zobrazeno 1 - 10
of 1 489
pro vyhledávání: '"Lake, B."'
This study explores the bulk crystal growth, structural characterization, and physical property measurements of the cubic double perovskite Ba_2CoWO_6(BCWO). In BCWO, Co+2 ions form a face-centered cubic (FCC) lattice with non-distorted cobalt octahe
Externí odkaz:
http://arxiv.org/abs/2408.08680
Autor:
Philippe, J., Elson, F., Casati, M. P. N., Sanz, S., Metzelaars, M., Shliakhtun, O., Forslund, O. K., Lass, J., Shiroka, T., Linden, A., Mazzone, D. G., Ollivier, J., Shin, S., Medarde, M., Lake, B., Mansson, M., Bartkowiak, M., Normand, B., Kögerler, P., Sassa, Y., Janoschek, M., Simutis, G.
Publikováno v:
Phys. Rev. B 110, 094101 (2024)
Low-dimensional quantum magnets are a versatile materials platform for studying the emergent many-body physics and collective excitations that can arise even in systems with only short-range interactions. Understanding their low-temperature structure
Externí odkaz:
http://arxiv.org/abs/2404.08274
Autor:
Puzniak, K., Aguilar-Maldonado, C., Feyerherm, R., Prokeš, K., Islam, A. T. M. N., Skourski, Y., Keller, L., Lake, B.
The effective spin-1/2 antiferromagnetic Heisenberg-Ising chain materials, ACo$_2$V$_2$O$_8$, A = Sr, Ba, are a rich source of exotic fundamental phenomena and have been investigated for their model magnetic properties both in zero and non-zero magne
Externí odkaz:
http://arxiv.org/abs/2309.16419
Autor:
Samartzis, A., Chillal, S., Jeschke, H. O., Voneshen, D. J., Lu, Z., Islam, A. T. M. N., Lake, B.
Publikováno v:
Physical Review B 107, 184435 (2023)
The magnetic excitation spectrum and Hamiltonian of the quantum magnet BaCuTe2O6 is studied by inelastic neutron scattering (INS) and density functional theory (DFT). INS on powder and single crystal samples reveals overlapping spinon continuua - the
Externí odkaz:
http://arxiv.org/abs/2305.03825
Publikováno v:
Physical Review B Letters 106, L100401 (2022)
While it is established that the pinch point scattering pattern in spin ice arises from an emergent coulomb phase associated with magnetic moment that is divergence-free, more complex Hamiltonians can introduce a divergence-full part. If these two pa
Externí odkaz:
http://arxiv.org/abs/2208.12369
The interplay of interactions and disorder in a quantum many body system may lead to the elusive phenomenon of many body localization (MBL). It has been observed under precisely controlled conditions in synthetic quantum many-body systems, but to det
Externí odkaz:
http://arxiv.org/abs/2207.10696
Autor:
Hanna, A. R. N., Islam, A. T. M. N., Feyerherm, R., Siemensmeyer, K., Karmakar, K., Chillal, S., Lake, B.
Single crystals of the three-dimensional frustrated magnet and spin liquid candidate compound PbCuTe$_2$O$_6$ were grown using both the Travelling Solvent Floating Zone (TSFZ) and the Top-Seeded Solution Growth (TSSG) techniques. The growth condition
Externí odkaz:
http://arxiv.org/abs/2107.07219
Publikováno v:
Phys. Rev. B 104, 144402 (2021)
The magnetic Hamiltonian of the Heisenberg quantum antiferromagnet SrCuTe$_{2}$O$_{6}$ is studied by inelastic neutron scattering technique on powder and single crystalline samples above and below the magnetic transition temperatures at 8 K and 2 K.
Externí odkaz:
http://arxiv.org/abs/2107.05331
Autor:
Scheie, A., Laurell, Pontus, Samarakoon, A. M., Lake, B., Nagler, S. E., Granroth, G. E., Okamoto, S., Alvarez, G., Tennant, D. A.
Publikováno v:
Phys. Rev. B 103, 224434 (2021)
We demonstrate how quantum entanglement can be directly witnessed in the quasi-1D Heisenberg antiferromagnet KCuF$_3$. We apply three entanglement witnesses --- one-tangle, two-tangle, and quantum Fisher information --- to its inelastic neutron spect
Externí odkaz:
http://arxiv.org/abs/2102.08376
Autor:
Samartzis, A., Khalyavin, D., Islam, A. T. M. N., Chillal, S., Siemensmeyer, K., Prokes, K., Voneshen, D. J., Senyshyn, A., Lake, B.
Publikováno v:
Phys. Rev. B 103, 094417 (2021)
We investigate the structural and magnetic properties of the new quantum magnet BaCuTe$_2$O$_6$. This compound is synthesized for the first time in powder and single crystal form. Synchrotron X-ray and neutron diffraction reveal a cubic crystal struc
Externí odkaz:
http://arxiv.org/abs/2102.07490