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Page 1
Assessing anthropogenic pressure in the St. Lawrence River using traits of benthic macroinvertebrates.
Desrosiers M, Usseglio-Polatera P, Archaimbault V, Larras F, Méthot G, Pinel-Alloul B. Desrosiers M, et al. Sci Total Environ. 2019 Feb 1;649:233-246. doi: 10.1016/j.scitotenv.2018.08.267. Epub 2018 Aug 23. Sci Total Environ. 2019. PMID: 30173032
Seven groups of taxa sharing similar trait-category attributes were defined. Moreover, four groups of sites were identified using the 'K-mean' non-hierarchical clustering approach. The 'IndVal' method enabled us to specifically defined trait categories corresponding to sit …
Seven groups of taxa sharing similar trait-category attributes were defined. Moreover, four groups of sites were identified using the 'K …
NMR study of the superconducting gap variation near the Mott transition in Cs₃C₆₀.
Wzietek P, Mito T, Alloul H, Pontiroli D, Aramini M, Riccò M. Wzietek P, et al. Phys Rev Lett. 2014 Feb 14;112(6):066401. doi: 10.1103/PhysRevLett.112.066401. Epub 2014 Feb 13. Phys Rev Lett. 2014. PMID: 24580696
It even increases slightly with decreasing p towards p(c), where T(c) decreases on the SC dome, so that 2delta/k(B)T(c) increases regularly upon approaching the Mott transition. ...
It even increases slightly with decreasing p towards p(c), where T(c) decreases on the SC dome, so that 2delta/k(B)T(c) increases reg …
NMR evidence for gapped spin excitations in metallic carbon nanotubes.
Singer PM, Wzietek P, Alloul H, Simon F, Kuzmany H. Singer PM, et al. Phys Rev Lett. 2005 Dec 2;95(23):236403. doi: 10.1103/PhysRevLett.95.236403. Epub 2005 Nov 29. Phys Rev Lett. 2005. PMID: 16384324

For T approximately < or = 150 K we find a significant increase in 1/T1T with decreasing T, followed by a sharp drop below approximately = 20 K. The data clearly indicate the formation of a gap in the spin excitation spectrum, where the gap value 2delta approxima

…

For T approximately < or = 150 K we find a significant increase in 1/T1T with decreasing T, followed by a sharp drop below approxi

…
23Na NMR evidence for charge order and anomalous magnetism in NaxCoO2.
Mukhamedshin IR, Alloul H, Collin G, Blanchard N. Mukhamedshin IR, et al. Phys Rev Lett. 2004 Oct 15;93(16):167601. doi: 10.1103/PhysRevLett.93.167601. Epub 2004 Oct 13. Phys Rev Lett. 2004. PMID: 15525032
The local susceptibility of the magnetic cobalt sites displays a large enhancement below 100 K with respect to the usually found high T Curie-Weiss law. This contrasts with the Pauli-like magnetism detected for x approximately 0.35, the parent of the superconducting hydrat …
The local susceptibility of the magnetic cobalt sites displays a large enhancement below 100 K with respect to the usually found high …
NMR study of the magnetic and metal-insulator transitions in Na0.5CoO2: a nesting scenario.
Bobroff J, Lang G, Alloul H, Blanchard N, Collin G. Bobroff J, et al. Phys Rev Lett. 2006 Mar 17;96(10):107201. doi: 10.1103/PhysRevLett.96.107201. Epub 2006 Mar 13. Phys Rev Lett. 2006. PMID: 16605784
Co and Na NMR are used to probe the local susceptibility and charge state of the two Co sites of the Na-ordered orthorhombic Na(0.5)CoO(2). Above T(N) = 86 K, both sites display a similar T dependence of the spin shift, suggesting that there is no charge segregation into C …
Co and Na NMR are used to probe the local susceptibility and charge state of the two Co sites of the Na-ordered orthorhombic Na(0.5)CoO(2). …
Persistence of Li induced Kondo moments in the superconducting state of cuprates.
Bobroff J, Alloul H, MacFarlane WA, Mendels P, Blanchard N, Collin G, Marucco JF. Bobroff J, et al. Phys Rev Lett. 2001 Apr 30;86(18):4116-9. doi: 10.1103/PhysRevLett.86.4116. Phys Rev Lett. 2001. PMID: 11328109
In contrast, near optimal doping, the large Kondo screening observed above Tc (TK = 135 K) is strongly reduced below Tc as expected theoretically when the superconducting gap develops. ...
In contrast, near optimal doping, the large Kondo screening observed above Tc (TK = 135 K) is strongly reduced below Tc as expected t …
Cascade of bulk magnetic phase transitions in NaxCoO2 as studied by muon spin rotation.
Mendels P, Bono D, Bobroff J, Collin G, Colson D, Blanchard N, Alloul H, Mukhamedshin I, Bert F, Amato A, Hillier AD. Mendels P, et al. Phys Rev Lett. 2005 Apr 8;94(13):136403. doi: 10.1103/PhysRevLett.94.136403. Epub 2005 Apr 6. Phys Rev Lett. 2005. PMID: 15904009
For the charge-ordered x=0.50 compound, a cascade of transitions is observed below 85 K. From a detailed analysis of our data, we conclude that the ordered moment varies continuously with temperature and suggest that the two secondary transitions at 48 and 29 K corr …
For the charge-ordered x=0.50 compound, a cascade of transitions is observed below 85 K. From a detailed analysis of our data, we con …
Total suppression of superconductivity by high magnetic fields in YBa(2)Cu(3)O(6.6).
Rullier-Albenque F, Alloul H, Proust C, Lejay P, Forget A, Colson D. Rullier-Albenque F, et al. Phys Rev Lett. 2007 Jul 13;99(2):027003. doi: 10.1103/PhysRevLett.99.027003. Epub 2007 Jul 12. Phys Rev Lett. 2007. PMID: 17678247
We have studied the variation of transverse magnetoresistance of underdoped YBCO(6.6) crystals, either pure or with reduced T(c) down to 3.5 K by electron irradiation, in fields up to 60 T. We find evidence that the superconducting fluctuation contribution to the conductiv …
We have studied the variation of transverse magnetoresistance of underdoped YBCO(6.6) crystals, either pure or with reduced T(c) down to 3.5 …