Zobrazeno 1 - 10
of 11
pro vyhledávání: '"R. M. Langan"'
Autor:
Louis Taillefer, V. B. Geshkenbein, A. P. Rassau, Robert Gagnon, R. M. Langan, Sergey N. Gordeev, P.A.J. de Groot
Publikováno v:
Physical Review B. 60:10477-10483
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1f9723056cbb47408d7714ae2f15015
https://doi.org/10.1103/physrevb.60.10477
https://doi.org/10.1103/physrevb.60.10477
Autor:
M. Oussena, Louis Taillefer, P.A.J. de Groot, A. G. M. Jansen, R. M. Langan, Robert Gagnon, Sergey N. Gordeev
Publikováno v:
Physica C: Superconductivity. 313:294-304
We present temperature and angular studies of the ohmic magneto-resistivity of clean twinned and detwinned YBa 2 Cu 3 O 7− δ single crystals. The scaling behaviour of thermodynamic and dynamic properties of the vortex liquid phase, in the region H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a8287090fcea8dbeae6beb56a305738
https://doi.org/10.1016/s0921-4534(99)00016-7
https://doi.org/10.1016/s0921-4534(99)00016-7
Autor:
R. M. Langan, Louis Taillefer, Robert Gagnon, Sergey N. Gordeev, Aloysius G. M. Jansen, P.A.J. de Groot
Publikováno v:
Physical Review B. 58:14548-14555
Influence of the oxygen stoichiometry on the phase diagram of clean ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ single crystals has been studied in the region of optimal doping $(0.05l\ensu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01cda35663aa2492b12f8ec2b2c87d92
https://doi.org/10.1103/physrevb.58.14548
https://doi.org/10.1103/physrevb.58.14548
Autor:
M. Oussena, K. Deligiannis, R. M. Langan, Robert Gagnon, Louis Taillefer, S. Pinfold, P.A.J. de Groot
Publikováno v:
Physical Review Letters. 79:2121-2124
Magnetic and transport measurements have been performed in high quality YBa2Cu3O7- delta single crystals. We demonstrate for the first time that the magnetization peak line in the phase diagram of YBa2Cu3O7- delta , Hp(T) exhibits an impressive simil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e42d7bd72102273ac1241746c35c7ac
https://doi.org/10.1103/physrevlett.79.2121
https://doi.org/10.1103/physrevlett.79.2121
Autor:
P.A.J. de Groot, Marion Kläser, W. Jahn, T. Wolf, Sergey N. Gordeev, German Müller-Vogt, R. M. Langan, C. Lessing, H. Küpfer, H. Wühl
Publikováno v:
Journal of Low Temperature Physics. 105:1177-1182
Pinning by point-like defects and twin boundaries in single-crystalline YBa2Cu3O7−δ has been investigated by measuring resistance and current-voltage characteristics in fields up to 5 T. A number of untwinned and twinned samples with different den
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fde46e967d6fc8017a14ecdb8471cbba
https://doi.org/10.1007/bf00753859
https://doi.org/10.1007/bf00753859
Autor:
S. Pinfold, A.V. Volkozub, Robert Gagnon, Sergey N. Gordeev, R. M. Langan, M. Oussena, Louis Taillefer, P.A.J. de Groot
Publikováno v:
Journal of Low Temperature Physics. 105:1147-1152
Magnetotransport measurements on a clean, untwinned YBa2Cu3O7−δ single crystal show that the vortex dynamics at temperatures just below the vortex lattice melting transition are highly dependent on the type of modulation of the probing current. Wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b04c88ea8a62601aa3da19e9a67b5b41
https://doi.org/10.1007/bf00753854
https://doi.org/10.1007/bf00753854
Autor:
M. Oussena, S. Pinfold, Robert Gagnon, Louis Taillefer, D. Bracanovic, P.A.J. de Groot, R. M. Langan, Sergey N. Gordeev
Publikováno v:
Physica C: Superconductivity and its Applications. :2037-2038
We present data from a.c. susceptibility and resistivity measurements in an applied d.c. magnetic field on clean detwinned YBa 2 Cu 3 O 6.92 single crystals. Our investigations have revealed an extremely sharp amplitude and frequency independent onse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c2a841e9a197a11a26dcf07cfabf20c
https://doi.org/10.1016/s0921-4534(97)01107-6
https://doi.org/10.1016/s0921-4534(97)01107-6
Autor:
Sergey N. Gordeev, R. M. Langan, P.A.J. de Groot, A. P. Rassau, Robert Gagnon, Louis Taillefer, M. Oussena
Publikováno v:
Physica C: Superconductivity and its Applications. :2033-2034
The dynamic behaviour of a driven vortex lattice in the vicinity of the melting line has been investigated. We have shown that a square wave driving current with asymmetric period or amplitude can induce a slow periodic variation in the voltage respo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cff17049bcc624d62bfe30cd292b8434
https://doi.org/10.1016/s0921-4534(97)01104-0
https://doi.org/10.1016/s0921-4534(97)01104-0
Autor:
R. M. Langan, S. Pinfold, P.A.J. de Groot, Louis Taillefer, M. Oussena, Sergey N. Gordeev, Robert Gagnon
Publikováno v:
Physica C: Superconductivity and its Applications. :2039-2040
We present magneto-resistance data from a high quality detwinned YBa 2 Cu 3 O 7−δ single crystal, taken using the conventional four-point method with the current applied along the ab plane and the field along the c-axis. Measurements were taken in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2452d4196a565320ccc89dfaa449141
https://doi.org/10.1016/s0921-4534(97)01109-x
https://doi.org/10.1016/s0921-4534(97)01109-x
Autor:
A. P. Rassau, A.V. Volkozub, M. Oussena, Sergey N. Gordeev, Robert Gagnon, R. M. Langan, Louis Taillefer, P.A.J. de Groot
Publikováno v:
Physica C: Superconductivity and its Applications. :2031-2032
Resistivity-temperature and voltage-current characteristics of clean detwinned YBa 2 Cu 3 O 7−δ single crystals have been measured using a SQUID picovoltmeter in magnetic fields of up to 5 T. We have observed hysteretic behaviour near T m in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed9e4d91814cc187feff823db76cdf67
https://doi.org/10.1016/s0921-4534(97)01102-7
https://doi.org/10.1016/s0921-4534(97)01102-7