Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Neumeier, J. J."'
The mean field theory is revisited in the classical and quantum mechanical limits. Taking into account the boundary conditions at the phase transition and the third law of the thermodynamics the physical properties of the ordered and disordered phase
Externí odkaz:
http://arxiv.org/abs/2102.10389
Publikováno v:
Phys. Rev. B 97, 174415 (2018)
Strongly interacting phonons and orbital excitations are observed in the same energy range for CuSb$_2$O$_6$, unlocking a so-far unexplored type of electron-phonon interaction. An orbital wave at $\sim 550$ cm$^{-1}$ softens on warming and strongly i
Externí odkaz:
http://arxiv.org/abs/1803.00559
Publikováno v:
Phys. Rev. B 97, 104304 (2018)
Raman spectroscopy experiments on single crystals of CuSb2O6 and CoSb2O6 quasi-one-dimensional antiferromagnets with trirutile crystal structure were performed, with a focus on the first material. The observed Raman-active phonon modes and previously
Externí odkaz:
http://arxiv.org/abs/1801.10549
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The monoclinic double-perovskite Sr2YRuO6 has recently gained a renewed interest in order to get a deeper insight into the exotic magnetic ground states associated with geometric frustration. Striking discrepancies between the spin order derived from
Externí odkaz:
http://arxiv.org/abs/1509.04377
Thermopower and electrical resistivity measurements transverse to the conducting chains of the quasi-one-dimensional metal Li(0.9)Mo(6)O(17) are reported in the temperature range 5 K <= T <= 500 K. For T>= 400 K the interchain transport is determined
Externí odkaz:
http://arxiv.org/abs/1404.4576
Measurements of magnetic susceptibility, heat capacity and thermal expansion are reported for single crystalline CuSb$_{2}$O$_{6}$ in the temperature range $5
Externí odkaz:
http://arxiv.org/abs/1306.3961
Autor:
Cohn, J. L., Boynton, P., Trivino, J. S., Trastoy, J., White, B. D., Santos, C. A. M. dos, Neumeier, J. J.
A correlation between lattice parameters, oxygen composition, and the thermoelectric and Hall coefficients is presented for single-crystal Li(0.9)Mo(6)O(17), a quasi-one-dimensional (Q1D) metallic compound. The possibility that this compound is a com
Externí odkaz:
http://arxiv.org/abs/1211.4822
The Nernst coefficient for the quasi-one-dimensional metal, Li(0.9)Mo(6)O(17), is found to be among the largest known for metals (~500 microV/KT at T~20K), and is enhanced in a broad range of temperature by orders of magnitude over the value expected
Externí odkaz:
http://arxiv.org/abs/1201.2154
The structure, morphology, and electrical properties of epitaxial a-axis oriented thin films of Nd(0.2)Sr(0.8)MnO(3) are reported for thicknesses 10 nm <= t <= 150 nm. Films were grown with both tensile and compressive strain on various substrates. I
Externí odkaz:
http://arxiv.org/abs/0910.5209