Zobrazeno 1 - 10
of 1 214
pro vyhledávání: '"Behr G"'
Autor:
Nössler, J., Seerig, R., Yasin, S., Uhlarz, M., Zherlitsyn, S., Behr, G., Drechsler, S. -L., Fuchs, G., Rosner, H., Wosnitza, J.
Publikováno v:
Phys. Rev. B 95, 014523 (2017)
By use of ultrasound studies we resolved magneto-acoustic quantum oscillation deep into the mixed state of the multiband nonmagnetic superconductor YNi2B2C. Below the upper critical field, only a very weak additional damping appears that can be well
Externí odkaz:
http://arxiv.org/abs/1702.02811
Autor:
Hess, C., Grafe, H., Kondrat, A., Lang, G., Hammerath, F., Wang, L., Klingeler, R., Behr, G., Büchner, B.
Publikováno v:
Phys. Status Solidi B, 254, 1600214 (2017)
Orbital ordering has recently emerged as another important state in iron based superconductors, and its role for superconductivity as well as its connection to magnetic order and orthorhombic lattice distortion are heavily debated. In order to search
Externí odkaz:
http://arxiv.org/abs/1604.03860
Autor:
Lang, G., Veyrat, L., Graefe, U., Hammerath, F., Paar, D., Behr, G., Wurmehl, S., Grafe, H. -J.
Publikováno v:
Phys. Rev. B 94, 014514 (2016)
Using nuclear quadrupole resonance, the phase diagram of 1111 $R$FeAsO$_{1-x}$F$_x$ ($R$$=$La, Ce, Sm) iron pnictides is constructed as a function of the local charge distribution in the paramagnetic state, which features low-doping-like (LD-like) an
Externí odkaz:
http://arxiv.org/abs/1508.06532
Autor:
Kovaleva, N. N., Kugel, K. I., Bazhenov, A. V., Fursova, T. N., Loeser, W., Xu, Y., Behr, G., Kusmartsev, F. V.
Publikováno v:
Scientific Reports 27 November 2012: Vol. 2, Article number : 890
Magnetic materials are usually divided into two classes: those with localised magnetic moments, and those with itinerant charge carriers. We present a comprehensive experimental (spectroscopic ellipsomerty) and theoretical study to demonstrate that t
Externí odkaz:
http://arxiv.org/abs/1307.7243
We have studied the magnetism of the Pr3+ ions in PrFeAsO_1-xF_x (x = 0; 0.15) and its interaction with the Fe magnetic order (for x = 0). Specific heat data confirm the presence of a first excited crystal electric field (CEF) level around 3.5 meV in
Externí odkaz:
http://arxiv.org/abs/1207.7186
Autor:
Aswartham, S., Abdel-Hafiez, M., Bombor, D., Kumar, M., Wolter, A. U. B., Hess, C., Evtushinsky, D. V., Zabolotnyy, V. B., Kordyuk, A. A., Kim, T. K., Borisenko, S. V., Behr, G., Büchner, B., Wurmehl, S.
Publikováno v:
Phys. Rev. B 85, 224520 (2012)
Single crystals of Ba$_{1-x}$Na$_x$Fe$_2$As$_2$ with $x$ = 0, 0.25, 0.35, 0.4 were grown using a self-flux high temperature solution growth technique. The superconducting and normal state properties were studied by temperature dependent magnetic susc
Externí odkaz:
http://arxiv.org/abs/1203.0143
Autor:
Naidyuk, Yu. G., Kvitnitskaya, O. E., Tiutrina, L. V., Yanson, I. K., Behr, G., Fuchs, G., Drechsler, S. -L., Nenkov, K., Schultz, L.
Publikováno v:
Physical Review B 84, 094516 (2011)
Point-contact (PC) investigations on the title compound in the normal and superconducting (SC) state (Tc=10,6 K) are presented. The temperature dependence of the SC gap of TmNi2B2C determined from Andreev-reflection (AR) spectra using the standard si
Externí odkaz:
http://arxiv.org/abs/1109.2213
Autor:
Hlubek, N., Ribeiro, P., Saint-Martin, R., Nishimoto, S., Revcolevschi, A., Drechsler, S. -L., Behr, G., Trinckauf, J., Hamann-Borrero, J. E., Geck, J., Büchner, B., Hess, C.
Publikováno v:
Phys. Rev. B 84, 214419 (2011)
We study the impact of a weak bond disorder on the spinon heat transport in the S=1/2 antiferromagnetic (AFM) Heisenberg chain material Sr_{1-x}Ca_xCuO_2. We observe a drastic suppression in the magnetic heat conductivity kappa_mag even at tiny disor
Externí odkaz:
http://arxiv.org/abs/1109.0412
Autor:
Mühlbauer, S., Pfleiderer, C., Böni, P., Forgan, E. M., Brandt, E. H., Wiedenmann, A., Keiderling, U., Behr, G.
Superconducting vortex lattices, glasses and liquids attract great interest as model systems of crystallization and as a source of microscopic information of the nature of superconductivity. We report for the first time direct microscopic measurement
Externí odkaz:
http://arxiv.org/abs/1101.4571
Autor:
Harnagea, L., Singh, S., Friemel, G., Leps, N., Bombor, D., Abdel-Hafiez, M., Wolter, A. U. B, Hess, C., Klingeler, R., Behr, G., Wurmehl, S., Büchner, B.
Platelet-like single crystals of the Ca(Fe1-xCox)2As2 series having lateral dimensions up to 15 mm and thickness up to 0.5 mm were obtained from the high temperature solution growth technique using Sn flux. Upon Co doping, the c-axis of the tetragona
Externí odkaz:
http://arxiv.org/abs/1011.2085