Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Alexander J. Browne"'
Phase stability and possible superconductivity of new 4d and 5d transition metal high-entropy alloys
Publikováno v:
Journal of Solid State Chemistry. 321:123881
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6af5a2850a6a34a697af1a8c57251907
https://doi.org/10.1016/j.jssc.2023.123881
https://doi.org/10.1016/j.jssc.2023.123881
ASG acknowledges funding through an EPSRC Early Career Fellowship EP/T011130/1. Spin-orbit coupling is a quantum effect that can give rise to exotic electronic and magnetic states in the compounds of the 4d and 5d transition metals. Exploratory synth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e331b6c3e73eab264c99987edc79e304
https://hdl.handle.net/10023/23813
https://hdl.handle.net/10023/23813
Autor:
J. Paul Attfield, Alexander J. Browne
Publikováno v:
Physical Review B. 101
X-ray scattering and magnetization measurements have been used to explore the extent of orbital molecule formation in a variety of $A{\mathrm{V}}_{2}{\mathrm{O}}_{4}$ vanadium oxide spinels. Zn doping suppresses the long-range order of trimer-tetrame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fcbfb68426dfd96f52ad4164b35da5a
https://doi.org/10.1103/physrevb.101.024112
https://doi.org/10.1103/physrevb.101.024112
Publikováno v:
Physical Review Materials. 4
At ambient pressure the spinel $\mathrm{Li}{\mathrm{V}}_{2}{\mathrm{O}}_{4}$ is a metal with a heavy fermion ground state. However, under applied pressure a transition to an insulating, nonmagnetic state occurs. Powder x-ray diffraction has been used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb485bdade5987e20963c9e656f36a93
https://doi.org/10.1103/physrevmaterials.4.015002
https://doi.org/10.1103/physrevmaterials.4.015002
Autor:
Z. Yamani, Christopher D. Frost, Efrain E. Rodriguez, P. M. Sarte, Alexander J. Browne, Chris Stock, Stephen D. Wilson, K. H. Hong, Dharmalingam Prabhakaran, Elise Pachoud, Russell A. Ewings, M. Songvilay, J. P. Attfield
Publikováno v:
Sarte, P M, Songvilay, M, Pachoud, E, Ewings, R A, Frost, C D, Prabhakaran, D, Hong, K H, Browne, A J, Yamani, Z, Attfield, J P, Rodriguez, E E, Wilson, S D & Stock, C 2019, ' Spin-orbit excitons in CoO ', Physical Review B, vol. 100, no. 7 . https://doi.org/10.1103/PhysRevB.100.075143
CoO has an odd number of electrons in its unit cell, and therefore is expected to be metallic. Yet, CoO is strongly insulating owing to significant electronic correlations, thus classifying it as a Mott insulator. We investigate the magnetic fluctuat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e0da36194d89d5f13f077a85bbc75b5
http://arxiv.org/abs/1908.00459
http://arxiv.org/abs/1908.00459
Autor:
C. D. Frost, Alexander J. Browne, R. A. Cowley, Z. Yamani, Chris Stock, W. J. L. Buyers, C. MacEwen, J. P. Attfield, Atsushi Kitada, V. Garcia-Sakai, D. Le, J. W. Taylor, M. Songvilay, P. M. Sarte, Efrain E. Rodriguez, Elise Pachoud, D. Prabhakaran
Publikováno v:
Physical Review B. 98
Neutron spectroscopy was applied to study the magnetic interactions of orbitally degenerate Co2+ on a host MgO rocksalt lattice where no long-range spin or orbital order exists. The paramagnetic nature of the substituted monoxide Co0.03Mg0.97O allows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb95cb38b6385e3abe15023b08290c1f
https://doi.org/10.1103/physrevb.98.024415
https://doi.org/10.1103/physrevb.98.024415
Publikováno v:
Inorganic chemistry. 57(5)
The structures and properties of vanadium oxides are often related to the formation of molecule-like clusters of vanadium cations through direct V-V bonding. GaV
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::491f4cfe6c349b057300e81b4e88b2c2
https://pubmed.ncbi.nlm.nih.gov/29465994
https://pubmed.ncbi.nlm.nih.gov/29465994
Publikováno v:
Browne, A J, Lithgow, C, Kimber, S A J & Attfield, J P 2018, ' Orbital Molecules in the New Spinel GaV2O4 ', Inorganic Chemistry, vol. 57, no. 5, pp. 2815-2822 . https://doi.org/10.1021/acs.inorgchem.7b03221
The structures and properties of vanadium oxides are often related to the formation of molecule-like clusters of vanadium cations through direct V-V bonding. GaV2O4, a new vanadium spinel, was synthesized. Powder diffraction and X-ray total scatterin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6efc0f6b671722af2b24361d48fdfa0c
https://www.pure.ed.ac.uk/ws/files/58296105/20180419_Attfield_GaV2O4_resub_002_.pdf
https://www.pure.ed.ac.uk/ws/files/58296105/20180419_Attfield_GaV2O4_resub_002_.pdf
Publikováno v:
Physical Review Materials. 1
Electronic instabilities in transition metal compounds can lead to ground states containing orbital molecules when direct metal-metal orbital interactions occur. The largest reported orbital molecules are V717+ heptamers that emerge below a 700 K cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b937398323f065e08b9a2f6a7b851847
https://doi.org/10.1103/physrevmaterials.1.052003
https://doi.org/10.1103/physrevmaterials.1.052003
Autor:
Alexander J. Browne, J. Paul Attfield
Publikováno v:
Acta Crystallographica Section A Foundations and Advances. 73:C1341-C1341
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9abace7cc4de6e5f7b7628ebc83ec9e9
https://doi.org/10.1107/s2053273317082341
https://doi.org/10.1107/s2053273317082341