Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Sanjeewa, L."'
The magnetic properties of [Mn(pyrazinecarboxylate)2]n (Mn-pyrazine), empirical formula C10H6MnN4O4, are investigated through susceptibility, heat capacity and neutron scattering measurements. The structure of Mn-pyrazine consists of Mn-Mn dimers lin
Externí odkaz:
http://arxiv.org/abs/2310.00083
Autor:
Riberolles, Simon X. M., Han, Tianxiong, Slade, Tyler J., Wilde, J. M., Sapkota, A., Tian, Wei, Zhang, Qiang, Abernathy, D. L., Sanjeewa, L. D., Bud'ko, S. L., Canfield, P. C., McQueeney, R. J., Ueland, B. G.
Publikováno v:
npj Quantum Mater. 9, 42 (2024)
Predicting magnetic ordering in kagome compounds offers the possibility of harnessing topological or flat-band physical properties through tuning of the magnetism. Here, we examine the magnetic interactions and phases of ErMn$_6$Sn$_6$ which belongs
Externí odkaz:
http://arxiv.org/abs/2306.13206
Autor:
Xie, Tao, Eberharter, A. A., Xing, Jie, Nishimoto, S., Brando, M., Khanenko, P., Sichelschmidt, J., Turrini, A. A., Mazzone, D. G., Naumov, P. G., Sanjeewa, L. D., Harrison, N., Sefat, A. S., Normand, B., Lauchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
npj Quantum Materials 8, 48 (2023)
Fifty years after Anderson's resonating valence-bond proposal, the spin-1/2 triangular-lattice Heisenberg antiferromagnet (TLHAF) remains the ultimate platform to explore highly entangled quantum spin states in proximity to magnetic order. Yb-based d
Externí odkaz:
http://arxiv.org/abs/2210.04928
Autor:
Taddei, K. M., Garlea, V. O., Samarakoon, A. M., Sanjeewa, L. D., Xing, J., Heitmann, T. W., Cruz, C. dela, Sefat, A. S., Parker, D.
Despite the exciting implications of the Kitaev spin-Hamiltonian, finding and confirming the quantum spin liquid state has proven incredibly difficult. Recently the applicability of the model has been expanded through the development of a microscopic
Externí odkaz:
http://arxiv.org/abs/2209.10651
Autor:
Scheie, A. O., Ghioldi, E. A., Xing, J., Paddison, J. A. M., Sherman, N. E., Dupont, M., Sanjeewa, L. D., Lee, Sangyun, Woods, A. J., Abernathy, D., Pajerowski, D. M., Williams, T. J., Zhang, Shang-Shun, Manuel, L. O., Trumper, A. E., Pemmaraju, C. D., Sefat, A. S., Parker, D. S., Devereaux, T. P., Movshovich, R., Moore, J. E., Batista, C. D., Tennant, D. A.
Publikováno v:
Nature Physics (2023)
The Heisenberg triangular lattice quantum spin liquid and the phase transitions to nearby magnetic orders have received much theoretical attention, but clear experimental manifestations of these states are rare. This work investigates a new spin-half
Externí odkaz:
http://arxiv.org/abs/2109.11527
Autor:
Xie, Tao, Xing, Jie, Nikitin, S. E., Nishimoto, S., Brando, M., Khanenko, P., Sichelschmidt, J., Sanjeewa, L. D., Sefat, Athena S., Podlesnyak, A.
Publikováno v:
npj Quantum Materials 8, 48 (2023)
A layered triangular lattice with spin-1/2 ions is an ideal platform to explore highly entangled exotic states like quantum spin liquid (QSL). Here, we report a systematic in-field neutron scattering study on a perfect two-dimensional triangular-latt
Externí odkaz:
http://arxiv.org/abs/2106.12451
Autor:
Yahne, D. R., Pereira, D., Jaubert, L. D. C., Sanjeewa, L. D., Powell, M., Kolis, J. W., Xu, Guangyong, Enjalran, M., Gingras, M. J. P., Ross, K. A.
Reentrance, the return of a system from an ordered phase to a previously encountered less-ordered one as a controlled parameter is continuously varied, is a recurring theme found in disparate physical systems, from condensed matter to black holes. Wh
Externí odkaz:
http://arxiv.org/abs/2101.08361
Autor:
Taddei, K. M., Yin, L., Sanjeewa, L. D., Li, Y., Xing, J., Cruz, C. dela, Phelan, D., Sefat, A. S., Parker, D.
Time reversal symmetry breaking Weyl semimetals are unique among Weyl materials in allowing the minimal number of Weyl points thus offering the clearest signatures of the associated physics. Here we present neutron diffraction, density functional the
Externí odkaz:
http://arxiv.org/abs/2012.01555
Autor:
Sanjeewa, L. D., Xing, J., Taddei, K. M., Parker, D., Custelcean, R., Cruz, D. dela, Sefat, A. S.
Publikováno v:
Phys. Rev. B 102, 104404 (2020)
Recently EuCd$_2$As$_2$ was predicted to be a magnetic Weyl semi-metal with a lone pair of Weyl nodes generated by A-type antiferromagnetism and protected by a rotational symmetry. However, it was soon discovered that the actual magnetic structure br
Externí odkaz:
http://arxiv.org/abs/2005.05217
Publikováno v:
Phys. Rev. B 101, 144432 (2020)
We use neutron scattering and bulk property measurements to determine the single-ion crystal-field Hamiltonians of delafossites $\rm KErSe_2$ and $\rm CsErSe_2$. These two systems contains planar equilateral triangular Er lattices arranged in two sta
Externí odkaz:
http://arxiv.org/abs/2001.03175