Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Chamorro, J. R."'
Autor:
de la Torre, A., Zager, B., Chamorro, J. R., Upton, M. H., Fabbris, G., Haskel, D., Casa, D., McQueen, T. M., Plumb, K. W.
We investigate the electronic structure of two Ir$^{5+}$ honeycomb iridates, Sr$_3$CaIr$_2$O$_9$ and NaIrO$_3$, by means of resonant x-ray techniques. We confirm that Sr$_3$CaIr$_2$O$_9$ realizes a large spin-orbit driven non-magnetic $J = 0$ singlet
Externí odkaz:
http://arxiv.org/abs/2206.11310
Autor:
Zager, B., Chamorro, J. R., Ge, L., Bisogni, V., Pelliciari, J., Li, J., Fabbris, G., McQueen, T. M., Mourigal, M., Plumb, K. W.
The $A$-site spinel NiRh$_2$O$_4$ is the only known realization of a spin-1 diamond lattice magnet and is predicted to host unconventional magnetic phenomena driven by frustrated nearest and next-nearest neighbor exchange as well as orbital degenerac
Externí odkaz:
http://arxiv.org/abs/2205.12296
Autor:
Chamorro, J. R., Chauhan, P., Sun, C., Varnava, N., Winiarski, M. J., Ng, N., Vivanco, H. K., Pressley, L. A., Pasco, C. M., Vanderbilt, D., Li, Yi, Armitage, N. P., McQueen, T. M.
Conventional BCS superconductors are expected to exhibit a conductivity with vanishing dissipation with decreasing temperature. While bulk physical properties measurements indicate PdPb$_{2}$ is a conventional superconductor with a $T_c$ of 3.0 K, me
Externí odkaz:
http://arxiv.org/abs/2112.10840
Autor:
de la Torre, A., Zager, B., Bahrami, F., DiScala, M., Chamorro, J. R., Upton, M. H., Fabbris, G., Haskel, D., Casa, D., McQueen, T. M., Tafti, F., Plumb, K. W.
Publikováno v:
Phys. Rev. B 104, 100416 (2021)
We use x-ray spectroscopy at Ir L$_3$/L$_2$ absorption edge to study powder samples of the intercalated honeycomb magnet Ag$_3$LiIr$_2$O$_6$. Based on x-ray absorption and resonant inelastic x-ray scattering measurements, and exact diagonalization ca
Externí odkaz:
http://arxiv.org/abs/2106.05309
Autor:
Park, W. K., Sittler, J. A., Greene, L. H., Fuhrman, W. T., Chamorro, J. R., Koohpayeh, S. M., Phelan, W. A., McQueen, T. M.
Publikováno v:
Phys. Rev B 103, 155125 (2021)
The true topological nature of the Kondo insulator SmB$_6$ remains to be unveiled. Our previous tunneling study not only found evidence for the existence of surface Dirac fermions, but it also uncovered that they inherently interact with the spin exc
Externí odkaz:
http://arxiv.org/abs/2104.07178
Quantum spin liquids are an exciting playground for exotic physical phenomena and emergent many-body quantum states. The realization and discovery of quantum spin liquid candidate materials and associated phenomena lie at the intersection of solid-st
Externí odkaz:
http://arxiv.org/abs/2006.10882
Autor:
Chamorro, J. R., Topp, A., Fang, Y., Winiarski, M. J., Ast, C. R., Krivenkov, M., Varykhalov, A., Ramshaw, B. J., Schoop, L., McQueen, T. M.
Publikováno v:
APL Materials 7, 121108 (2019)
Layered heavy-metal square-lattice compounds have recently emerged as potential Dirac fermion materials due to bonding within those sublattices. We report quantum transport and spectroscopic data on the layered Sb square-lattice material LaCuSb$_{2}$
Externí odkaz:
http://arxiv.org/abs/2001.00703
Autor:
Boulanger, M-E., Laliberté, F., Dion, M., Badoux, S., Doiron-Leyraud, N., Phelan, W. A., Koohpayeh, S. M., Fuhrman, W. T., Chamorro, J. R., McQueen, T. M., Wang, X., Nakajima, Y., Metz, T., Paglione, J., Taillefer, L.
Publikováno v:
Phys. Rev. B 97, 245141 (2018)
The thermal conductivity $\kappa$ of the Kondo insulator SmB$_6$ was measured at low temperature, down to 70 mK, in magnetic fields up to 15 T, on single crystals grown using both the floating-zone and the flux methods. The residual linear term $\kap
Externí odkaz:
http://arxiv.org/abs/1709.10456
Publikováno v:
Phys. Rev. Materials 2, 034404 (2018)
We report the discovery of a spin one diamond lattice in NiRh2O4. This spinel undergoes a cubic to tetragonal phase transition at T = 440 K that leaves all nearest neighbor interactions equivalent. In the tetragonal phase, magnetization measurements
Externí odkaz:
http://arxiv.org/abs/1701.06674
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