C
C. Marques
Researcher at Stony Brook University
Publications - 13
Citations - 165
C. Marques is an academic researcher from Stony Brook University. The author has contributed to research in topics: Antiferromagnetism & Magnetic susceptibility. The author has an hindex of 6, co-authored 13 publications receiving 138 citations. Previous affiliations of C. Marques include Brookhaven National Laboratory.
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Journal ArticleDOI
From antiferromagnetic insulator to correlated metal in pressurized and doped LaMnPO
Jack Simonson,Zhiping Yin,Zhiping Yin,M. Pezzoli,M. Pezzoli,Jiangang Guo,Jian Liu,Kirk Post,A. Efimenko,N. Hollmann,Zhiwei Hu,Hong-Ji Lin,Chunxia Chen,C. Marques,V. Leyva,G. J. Smith,Jeffrey W. Lynn,Liling Sun,Gabriel Kotliar,Dimitri Basov,Liu Hao Tjeng,Meigan Aronson,Meigan Aronson +22 more
TL;DR: Electronic structure calculations and X-ray diffraction measurements presented here challenge long held beliefs, finding that only modest pressures are required to transform LaMnPO, isostructural to superconducting host LaFeAsO, from an antiferromagnetic insulator to a metallic antiferrosagnet, where the Mn moment vanishes in a second pressure-driven transition.
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Analysis of Linpack and power efficiencies of the world’s TOP500 supercomputers
TL;DR: This comparative and retrospective study examines all the available data contained in these two lists through November 2012 and proposes a novel representation and analysis of the data, highlighting several major evolutionary trends.
Journal ArticleDOI
Gap states in insulating LaMnPO 1 − x F x ( x = 0 –0.3)
Jack Simonson,Kirk Post,C. Marques,G. J. Smith,Omar Khatib,Dimitri Basov,Meigan Aronson,Meigan Aronson +7 more
TL;DR: In this paper, infrared and electrical resistivity measurements reveal that single crystals of LaMnPO are insulating at low temperatures, described well by variable range hopping conduction between these localized gap states.
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Field-tuned Fermi liquid in quantum critical YFe2Al10
Keeseong Park,Liusuo Wu,Liusuo Wu,Y. Janssen,Moo-Sung Kim,Moo-Sung Kim,C. Marques,Meigan Aronson,Meigan Aronson +8 more
TL;DR: In this paper, the authors present measurements of the magnetization, ac susceptibility, electrical resistivity, and specific heat in single crystals of metallic YFe and show that strong quasi-two-dimensional critical fluctuations are present that can be suppressed by magnetic fields.
Journal ArticleDOI
Origin of the charge gap in LaMnPO
Daniel McNally,Jack Simonson,Kirk Post,Zhiping Yin,M. Pezzoli,M. Pezzoli,G. J. Smith,V. Leyva,C. Marques,Lisa DeBeer-Schmitt,Alexander I. Kolesnikov,Yang Zhao,Jeffrey W. Lynn,Dimitri Basov,Gabriel Kotliar,Meigan Aronson,Meigan Aronson +16 more
TL;DR: In this article, high temperature inelastic neutron scattering and magnetic susceptibility measurements of the antiferromagnetic insulator LaMnPO that are consistent with the presence of two-dimensional magnetic correlations up to a temperature