Zobrazeno 1 - 10
of 253
pro vyhledávání: '"Oeschler, N."'
Autor:
Prasad, A., Anand, V. K., Paramanik, U. B., Hossain, Z., Sarkar, R., Oeschler, N., Baenitz, M., Geibel, C.
Publikováno v:
Phys. Rev. B 86, 014414 (2012)
We present a complete characterization of ferromagnetic system CeIr2B2 using powder x-ray diffraction XRD, magnetic susceptibility chi(T), isothermal magnetization M(H), specific heat C(T), electrical resistivity rho(T,H), and thermoelectric power S(
Externí odkaz:
http://arxiv.org/abs/1207.5061
Publikováno v:
Physica B: Condensed Matter (2009) 404, 2890-2893
We report low-temperature measurements of the electrical resistivity of Yb(Rh1-xCox)2Si2 single crystals with 0 <= x <= 0.12. The isoelectronic substitution of Co on the Rh site leads to a decrease of the unit cell volume which stabilizes the antifer
Externí odkaz:
http://arxiv.org/abs/0906.2894
Autor:
Krellner, C., Hartmann, S., Pikul, A., Oeschler, N., Donath, J. G., Geibel, C., Steglich, F., Wosnitza, J.
Publikováno v:
Phys. Rev. Lett. 102, 196402 (2009)
We report on precise low-temperature specific-heat measurements, C(T), of YbRh2Si2 in the vicinity of the antiferromagnetic phase transition on a single crystal of superior quality (RRR 150). We observe a very sharp peak at T_N=72mK with absolute val
Externí odkaz:
http://arxiv.org/abs/0904.2969
The heavy-fermion compound YbRh2Si2 exhibits an antiferromagnetic (AFM) phase transition at an extremely low temperature of TN = 70 mK. Upon applying a tiny magnetic field of Bc = 60 mT the AFM ordering is suppressed and the system is driven toward a
Externí odkaz:
http://arxiv.org/abs/0807.3420
Previously measured thermopower data of CeNiSn exhibit a significant sample dependence and non-monotonous behavior in magnetic fields. In this paper we demonstrate that the measured thermopower S(T) may contain a contribution from the huge Nernst coe
Externí odkaz:
http://arxiv.org/abs/0807.0737
Hall effect measurements on YbRh2Si2 and relatives in the light of electronic structure calculations
Autor:
Friedemann, S., Oeschler, N., Wirth, S., Krellner, C., Geibel, C., Steglich, F., MaQuilon, S., Fisk, Z., Paschen, S., Zwicknagl, G.
Publikováno v:
Phys. Rev. B, 82, 035103 (2010)
We report experimental and theoretical investigations of the Hall effect in YbRh2Si2 and its reference compounds LuRh2Si2 and YbIr2Si2. Based on band-structure calculations we identify two bands dominating the Hall coefficient in all these compounds.
Externí odkaz:
http://arxiv.org/abs/0803.4428
Publikováno v:
Phys. Rev. B 77, 104412 (2008)
We present the thermopower S(T) and the resistivity rho(T) of Lu(1-x)Yb(x)Rh2Si2 in the temperature range 3 K < T < 300 K. S(T) is found to change from two minima for dilute systems (x < 0.5) to a single large minimum in pure YbRh2Si2. A similar beha
Externí odkaz:
http://arxiv.org/abs/0802.1827
The superconducting-state heat capacity of Na$_{0.3}$CoO$_{2}$$\cdot$1.3H$_{2}$O shows unusual, marked deviations from BCS theory, at all temperatures. At low temperatures the heat capacity has the $T^2$ dependence characteristic of line nodes in the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0409760
Autor:
Kuechler, R., Oeschler, N., Gegenwart, P., Cichorek, T., Neumaier, K., Tegus, O., Geibel, C., Mydosh, J. A., Steglich, F., Zhu, Lijun, Si, Qimiao
Publikováno v:
Phys. Rev. Lett. 91, 066405 (2003)
We present low-temperature volume thermal expansion, $\beta$, and specific heat, $C$, measurements on high-quality single crystals of CeNi2Ge2 and YbRh2(Si$_{0.95}$Ge$_{0.05}$)$_2$ which are located very near to quantum critical points. For both syst
Externí odkaz:
http://arxiv.org/abs/cond-mat/0308093
Autor:
Gegenwart, P., Langhammer, C., Helfrich, R., Oeschler, N., Lang, M., Kim, J. S., Stewart, G. R., Steglich, F.
Publikováno v:
Physica C 408--410 (2004) 157--160.
Non-Fermi liquid (NFL) behavior in the normal state of the heavy-fermion superconductor UBe13 is studied by means of low-temperature measurements of the specific heat, C, and electrical resistivity, \rho, on a high-quality single crystal in magnetic
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307420