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Related papers: Specific Heat of YBa$_2$Cu$_3$O$_{7 - {\rm \delta}…

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Low-temperature specific heat is measured on the overdoped Ba(Fe_{1-x}Co_x)_2As_2 (x = 0.13) single crystal under magnetic fields along three different directions. A clear anisotropy is observed on the field dependent electronic specific…

Superconductivity · Physics 2013-04-26 Gang Mu , Jun Tang , Yoichi Tanabe , Jingtao Xu , Bin Zeng , Bing Shen , Fei Han , Hai-Hu Wen , Satoshi Heguri , Katsumi Tanigaki

The specific heat due to line nodes in the superconducting gap of YBa2Cu3O7 has been obscured up to now by magnetic terms of extrinsic origin, even for high quality crystals. We report the specific heat of a new single crystal grown in a…

Superconductivity · Physics 2009-10-31 Yuxing Wang , Bernard Revaz , Andreas Erb , Alain Junod

We have measured the electronic specific heat of $Y_{0.8}Ca_{0.2}Ba_2Cu_3O_{7-\delta}$ using a high-resolution differential technique from liquid helium temperature to room temperature in an applied magnetic field up to 13T. The field…

Superconductivity · Physics 2007-05-23 J. L. Luo , J. W. Loram , T. Xiang , J. R. Cooper , J. L. Tallon

The heat capacity of a 2H-NbS2 single crystal has been measured by a highly sensitive ac technique down to 0.6 K and in magnetic fields up to 14 T. At very low temperatures data show excitations over an energy gap (2DS/kBTc \approx 2.1)…

Superconductivity · Physics 2015-05-20 J. Kacmarcik , Z. Pribulova , C. Marcenat , T. Klein , P. Rodiere , L. Cario , P. Samuely

We report a study of the basal-plane anisotropy of the superfluid density in underdoped YBa$_{2}$Cu$_{4}$O$_{8}$ (Y124), showing the effects of both the CuO$_{2}$ planes and the fully occupied CuO chains. From small-angle neutron scattering…

Field-angle-resolved specific-heat measurements were performed on a clean single crystal of a spin-triplet superconductor UTe$_2$ with $T_{\rm c}=2.1$ K and a low residual electronic specific heat. At low temperatures, the specific heat…

The temperature dependence of the normal state Hall effect and magnetoresistance in YBa$_2$Cu$_3$O$_7$ is investigated using the Nearly Antiferromagnetic Fermi Liquid description of planar quasiparticles. We find that highly anisotropic…

Condensed Matter · Physics 2009-10-28 Branko P. Stojkovic , David Pines

The magnetic field (B) dependence of the electronic specific heat for a simple BCS type-II superconductor has been determined from measurements on pure niobium (Nb). Contrary to expectations, the electronic specific heat coefficient…

Superconductivity · Physics 2010-12-06 J. E. Sonier , M. F. Hundley , J. D. Thompson

The magnetic field dependence of the specific heat of Zn-doped single crystals of YBa_{2}Cu_3O_{6.95} was measured between 2 and 10 K and up to 8 Tesla. Doping levels of 0, 0.15%, 0.31%, and 1% were studied and compared. In particular we…

Superconductivity · Physics 2009-10-31 D. L. Sisson , S. G. Doettinger , A. Kapitulnik , R. Liang , D. A. Bonn , W. N. Hardy

The vortex lattice (VL) in the high-kappa superconductor YBa2Cu3O7, at 2 K and with the magnetic field parallel to the crystal c-axis, undergoes a sequence of transitions between different structures as a function of applied magnetic field.…

Thermodynamic (specific heat, reversible magnetization, tunneling spectroscopy) and transport measurements have been performed on high quality (K,Ba)BiO$_3$ single crystals. The temperature dependence of the magnetic field $H_{Cp}$…

Superconductivity · Physics 2009-11-07 S. Blanchard , T. Klein , J. Marcus , I. Joumard , A. Sulpice , P. Szabo , P. Samuely , A. G. M. Jansen , C. Marcenat

The temperature and magnetic field dependences of the electronic specific heat in the superconducting mixed state as well as the upper critical field have been measured on a (Y,Lu)Ni2B2C series to study the influence of disorder. The…

The low temperature specific heat C(B,T) of an YBa2Cu3O7.00 single crystal is measured from 1.2 to 10 K in magnetic fields up to 14 T. The anisotropic component Caniso(T,B)=C(T,B//c)-C(T,B//ab) is a pure vortex quantity obtained directly…

Superconductivity · Physics 2009-10-30 B. Revaz , J. -Y. Genoud , A. Junod , A. Erb , E. Walker

We review the results of the microscopic approach to the calculation of the anisotropy in the specific heat in unconventional superconductors under rotated field. Treating vortex scattering on equal footing with the energy shift we find…

Superconductivity · Physics 2009-11-13 I. Vekhter , A. B. Vorontsov

Measuring the specific heat of herbertsmithite single crystals in high magnetic fields (up to $34$ T) allows us to isolate the low-temperature kagome contribution while shifting away extrinsic Schottky-like contributions. The kagome…

Strongly Correlated Electrons · Physics 2022-01-24 Q. Barthélemy , A. Demuer , C. Marcenat , T. Klein , B. Bernu , L. Messio , M. Velázquez , E. Kermarrec , F. Bert , P. Mendels

We report specific heat measurements on a high quality single crystal of the heavy-fermion compound CePt$_2$In$_7$ in magnetic fields up to 27 T. The zero-field specific heat data above the N\'{e}el temperature, $T_N$, suggest a moderately…

Strongly Correlated Electrons · Physics 2016-02-23 Y. Krupko , A. Demuer , S. Ota , Y. Hirose , R. Settai , I. Sheikin

It is shown that the large effect of heavy ion-irradiation on the thermodynamical properties of the anisotropic superconductor YBa$_{2}$Cu$_{3}$O$_{7-\delta}$ extends well into the superconducting fluctuation regime. The presence of the…

We consider a quasi two-dimensional superconductor with line nodes in an in-plane magnetic field, and compute the dependence of the specific heat, $C$, and the in-plane heat conductivity, $\kappa$, on the angle between the field and the…

Superconductivity · Physics 2007-05-23 A. Vorontsov , I. Vekhter

The temperature dependence of the upper critical magnetic field (Hc2) in a BaFe1.84Co0.16As2 single crystal was determined via resistivity, for the inter-plane (H^ab) and in-plane (H//ab) directions in pulsed and static magnetic fields of…

Superconductivity · Physics 2015-05-13 M. Kano , Y. Kohama , D. Graf , F. F. Balakirev , A. S. Sefat , M. A. McGuire , B. C. Sales , D. Mandrus , S. W. Tozer

When magnetic field is applied parallel to the ab plane in d_{x^2-y^2}-wave superconductors, the transition of stable vortex lattice structure, spatial structure of local density of states, and specific heat oscillation by rotation of…

Superconductivity · Physics 2010-09-16 Masayuki Hiragi , Kenta M. Suzuki , Masanori Ichioka , Kazushige Machida
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