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排序方式: 共有122条查询结果,搜索用时 500 毫秒
91.
Bauer ED Thompson JD Sarrao JL Morales LA Wastin F Rebizant J Griveau JC Javorsky P Boulet P Colineau E Lander GH Stewart GR 《Physical review letters》2004,93(14):147005
The superconducting properties of the recently discovered PuMGa5 (M=Co,Rh) superconductors, including the power law behavior of the specific heat, the evolution of the superconducting transition T(c) temperature with pressure, and the linear relation between T(c) and ratio of tetragonal lattice parameters c/a, are compared to those of the heavy fermion CeMIn5 (M=Co,Rh,Ir) unconventional superconductors. The striking similarity of the properties between the two families of superconductors suggests a common physics and a common (magnetically mediated) mechanism of superconductivity. 相似文献
92.
Paixão JA Detlefs C Longfield MJ Caciuffo R Santini P Bernhoeft N Rebizant J Lander GH 《Physical review letters》2002,89(18):187202
We report the results of resonant x-ray scattering experiments performed at the Np M(4,5) edges in NpO2. Below T(0)=25 K, the development of long-range order of Np electric quadrupoles is revealed by the growth of superlattice Bragg peaks. The polarization and azimuthal dependence of the intensity of the resonant peaks are well reproduced assuming anisotropic tensor susceptibility scattering from a triple-q(-->) longitudinal antiferroquadrupolar structure. Electric-quadrupole order in NpO2 could be driven by the ordering at T0 of magnetic octupoles of Gamma(5) symmetry, splitting the Np ground state quartet and leading to a singlet ground state with zero dipole-magnetic moment. 相似文献
93.
Sagawa H Lim J Abe K Fujii Y Higashi Y Kim SK Kurihara Y Maki A Nozaki T Omori T Sakai Y Sugimoto Y Takaiwa Y Terada S Imlay R Kirk P McNeil RR Metcalf W Myung SS Cheng CP Gu P Li J Li YK Mao ZP Xu YT Zhu YC Abashian A Gotow K Hu KP Low EH Mattson ME Piilonen L Sterner KL Lusin S Rosenfeld C Wang AT Wilson S Frautschi M Kagan H Kass R Trahern CG Kim GN Ko W Lander RL Maeshima K Malchow RL Smith JR Sparks K Stuart D Williams MC Kajino F Perticone D Poling R Thomas T Bacala A Park IH Sannes F 《Physical review letters》1989,63(21):2341-2345
94.
Aihara H Alston-Garnjost M Avery RE Barbaro-Galtieri A Barker AR Barnes AV Barnett BA Bauer DA Bengtsson H Bintinger DL Bobbink GJ Bolognese TS Bross AD Buchanan CD Buijs A Caldwell DO Clark AR Cowan GD Crane DA Dahl OI Derby KA Eastman JJ Eberhard PH Edberg TK Eisner AM Enomoto R Erné FC Fujii T Gary JW Gorn W Hauptman JM Hofmann W Huth JE Hylen J Kamae T Kaye HS Kees KH Kenney RW Kerth LT Ko W Koda RI Kofler RR Kwong KK Lander RL Langeveld WG Layter JG Linde FL Lindsey CS Loken SC Lu A Lu X 《Physical review letters》1986,57(26):3245-3248
95.
Aihara H Alston-Garnjost M Avery RE Barbaro-Galtieri A Barker AR Barnes AV Barnett BA Bauer DA Bengtsson H Bintinger DL Bobbink GJ Bolognese TS Bross AD Buchanan CD Buijs A Caldwell DO Clark AR Cowan GD Crane DA Dahl OI Derby KA Eastman JJ Eberhard PH Edberg TK Eisner AM Enomoto R Erné FC Fujii T Gary JW Gorn W Hauptman JM Hofmann W Huth JE Hylen J Kamae T Kaye HS Kees KH Kenney RW Kerth LT Ko W Koda RI Kofler RR Kwong KK Lander RL Langeveld WG Layter JG Linde FL Lindsey CS Loken SC Lu A Lu X 《Physical review letters》1986,57(15):1836-1838
96.
Aihara H Alston-Garnjost M Avery RE Barbaro-Galtieri A Barker AR Barnes AV Barnett BA Bauer DA Bengtsson pH Bintinger DL Bobbink GJ Bolognese TS Bross AD Buchanan CD Buijs A Caldwell DO Clark AR Cowan GD Crane DA Dahl OI Derby KA Eastman JJ Eberhard PH Edberg TK Eisner AM Enomoto R Erné FC Fujii T Gary JW Gorn W Hauptman JM Hofmann W Huth JE Hylen J Kamae T Kaye HS Kees KH Kenney RW Kerth LT Ko W Koda RI Kofler RR Kwong KK Lander RL Langeveld WG Layter JG Linde FL Lindsey CS Loken SC Lu A Lu XQ 《Physical review letters》1987,58(2):97-100
97.
Sagawa H Mori T Abe K Chakrabarti S Fujii Y Higashi Y Ishimoto S Kurihara Y Maki A Mani P Nozaki T Omori T Perez P Sakai Y Sugimoto Y Takaiwa Y Terada S Tsuchiya K Bacala A Imlay R Kirk P Marterer W McNeil RR Metcalf W Cheng CP Mao ZP Yan Y Xu YT Zhou HS Zhu YC Abashian A Gotow K Kajino F Naito F Avignone F Childers R Darden C Edwards J Lusin S Rosenfeld C Wilson S Johnson D Frautschi M Kagan H Kass R Trahern CG Lee HY Ko W Lander RL Maeshima K Malchow RL Saroff D Sparks K Williams MC 《Physical review letters》1988,60(2):93-96
98.
Igarashi S Myung SS Chiba R Hanaoka K Miyashita M Murata H Yokota H Bacala A Imlay R Kirk P McNeil RR Metcalf W Cheng CP Mao ZP Yan Y Xu YT Zhou HS Zhu YC Abashian A Gotow K Kajino F Naito F Childers R Darden C Edwards J Lusin S Rosenfeld C Wilson S Johnson D Frautschi M Kagan H Kass R Trahern CG Lee HY Ko W Lander RL Maeshima K Malchow RL Sparks K Williams MC Abe K Chakrabarti S Fujii Y Higashi T Ishimoto S Kurihara Y Maki A Nozaki T Omori T Perez P Sagawa H Sakai Y Sugimoto Y Takaiwa Y 《Physical review letters》1988,60(23):2359-2362
99.
100.
Amatzya Y. Meyer Reuven Pasternak Jeffrey Sterling Naftali Lander Raphael Mechoulam 《Tetrahedron》1976,32(22):2805-2810
The bathochromic-hypochromic spectral shifts, observed in bicyclic enones that contain a 4- or a 3-membered ring, are discussed in molecular-mechanical and molecular-orbital terms. It is proposed that the effect, not only by the cyclopropane but also by the cyclobutane ring, is due to extension of the CCCO chromophore, and not to its mere distortion from “normal” geometry. The high-energy absorption of umbellulone (3), 220 nm in ethanol, is characterized as a second π-π*. 2-Methylbicyclo[3.2.1]oct-2-en-4-one (7) has been synthesized, and its preparation and spectrum are described. 相似文献