Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Radu Coldea"'
Autor:
Pontus Laurell, Allen Scheie, Chiron J. Mukherjee, Michael M. Koza, Mechtild Enderle, Zbigniew Tylczynski, Satoshi Okamoto, Radu Coldea, D. Alan Tennant, Gonzalo Alvarez
Publikováno v:
Physical Review Letters. 130
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bff96da181bc134018b94a5352813f0
https://doi.org/10.1103/physrevlett.130.129902
https://doi.org/10.1103/physrevlett.130.129902
Autor:
Pontus, Laurell, Allen, Scheie, Chiron J, Mukherjee, Michael M, Koza, Mechtild, Enderle, Zbigniew, Tylczynski, Satoshi, Okamoto, Radu, Coldea, D Alan, Tennant, Gonzalo, Alvarez
Publikováno v:
Physical review letters. 127(3)
The lack of methods to experimentally detect and quantify entanglement in quantum matter impedes our ability to identify materials hosting highly entangled phases, such as quantum spin liquids. We thus investigate the feasibility of using inelastic n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::78b84ca125482231358080fab30f2204
https://pubmed.ncbi.nlm.nih.gov/34328778
https://pubmed.ncbi.nlm.nih.gov/34328778
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance The quasi-1D magnetic insulator CoNb2O6 hosts a paradigmatic example of a quantum phase transition in the 1D Ising universality class. While the physics near the transition is largely insensitive to the microscopic Hamiltonian, several f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::e84363ae6a2b428e09ba82a8f92f3cd1
https://pubmed.ncbi.nlm.nih.gov/32978298
https://pubmed.ncbi.nlm.nih.gov/32978298
Autor:
Robert Bewley, David Macdougal, Dharmalingam Prabhakaran, S. C. Williams, D. J. Voneshen, Radu Coldea
Publikováno v:
Physical Review B. 102
The authors report inelastic neutron scattering measurements to directly visualize the effects of collective quantum fluctuations in a spin-\textonehalf{} near-Heisenberg antiferromagnet on a triangular lattice. They observe a rich spectrum of sharp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b751acb3fb9c4312e00bb170dd412cfc
https://doi.org/10.1103/physrevb.102.064421
https://doi.org/10.1103/physrevb.102.064421
Publikováno v:
Physical Review B. 102
Low-temperature thermal conductivity measurements have been conducted on an oxygen-annealed single crystal of ${\mathrm{Yb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ from 60 mK to 50 K and in magnetic fields up to 8 T applied in the [111] crystallograph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e5cacc16b284a03cc4e7c39798f8f3c
https://doi.org/10.1103/physrevb.102.014434
https://doi.org/10.1103/physrevb.102.014434
Publikováno v:
Proceedings of the National Academy of Sciences
We construct a microscopic spin-exchange Hamiltonian for the quasi-1D Ising magnet CoNb$_2$O$_6$ that captures detailed and hitherto-unexplained aspects of its dynamic spin structure factor. We perform a symmetry analysis that recalls that an individ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9903140ddfc2f2ed952a1ac64b1a4993
http://arxiv.org/abs/2004.04169
http://arxiv.org/abs/2004.04169
Autor:
M. Elliot, D. Prabhakaran, Robert Johnson, Paul A. McClarty, Pascal Manuel, Radu Coldea, Helen Walker
Publikováno v:
Nature Communications
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Recent theoretical proposals have argued that cobaltates with edge-sharing octahedral coordination can have significant bond-dependent exchange couplings thus offering a platform in 3$d$ ions for such physics beyond the much-explored realizations in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4abc59f30169ca8231a47d2a8f171c14
Publikováno v:
Physical Review B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::b751acb3fb9c4312e00bb170dd412cfc
Autor:
A. C. Walters, D. F. McMorrow, L. S. I. Veiga, J. G. Vale, Eugenio Paris, C. D. Dashwood, I.-M. Pietsch, Philipp Gegenwart, Radu Coldea, M. Garcia-Fernandez, Abhishek Nag, Thorsten Schmitt, Anton Jesche, Ke-Jin Zhou
Publikováno v:
Physical Review B. 100
The excitations in honeycomb α − Li 2 IrO 3 have been investigated with high-resolution resonant inelastic x-ray scattering (RIXS) at the O K edge. The low-energy response is dominated by a fully resolved ladder of excitations, which we interpret
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2ed7ea4dab0106cee89598bf06feda2
https://doi.org/10.1103/physrevb.100.224303
https://doi.org/10.1103/physrevb.100.224303
Autor:
Tom Lancaster, John Singleton, Sungkyun Choi, S. J. Blundell, D. T. Adroja, Philipp Gegenwart, Vivien Zapf, Radu Coldea, Craig V. Topping, Soham Manni
Publikováno v:
Physical Review B. 99
The layered honeycomb iridate $\ensuremath{\alpha}\text{\ensuremath{-}}{\mathrm{Li}}_{2}{\mathrm{IrO}}_{3}$ displays an incommensurate magnetic structure with counter-rotating moments on nearest-neighbor sites, proposed to be stabilized by strongly f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::966459c5b5da138f39c36522f52fb899
https://doi.org/10.1103/physrevb.99.054426
https://doi.org/10.1103/physrevb.99.054426