Recent Publications and Preprints

Levin, G. A., Cimpoiasu, E., Almasan, C. C., Zheng, H., Paulikas, A. P., Veal, B.W., Li, Shi, and Maple, M. B. "Conductivity and Phase Coherence Length of Single Electrons in Layered Cuprates." Europhysics Letters 57, 86 (2002). 

Cimpoiasu, E. Sandu, V., Almasan, C. C., Paulikas, A. P., and Veal, B. W. "The Effect of Antiferromagnetic Domains on the Magnetotransport of YBa₂Cu₃O_6.25" Physical Review B 65, 144505 (2002).

Zhang, C. L., Chen, X. J., Almasan, C. C., Gardner, J. S, and Sarao, J. L. "Low-Temperature Electrical Transport in Bilayer Manganite La_1.2Sr_1.8Mn₂O₇". Physical Review B 65, 134439 (2002).

Sandu, V., Cimpoiasu, E., Almasan, C. C., Paulikas, A. P., and Veal, B. W. "Interplay Between Spin and Crystal Lattices in Antiferromagnetic YBa₂Cu₃O_6.25" Proceetings of Physical Phenomena at High Magnetic Fields-IV " World Scientific Publishing Co., Eds. G. Bobinger, Z. Fisk, L. P. Gorkov, A. Lacerda, J. R. Schrieffer, p. 312 (2002).

Chen, X. J., Zhang, C. L., Almasan, C. C., Gardner, J. S, and Sarao, J. L. "Small-Polaron Hopping Conduction in the Bilayer Manganite La_1.2Sr_1.8Mn₂O₇". Physical Review B 67, 094426 (2003).

Chen, X. J., Habermeier, H. U., Zhang, C. L., Zhang, H., and Almasan, C. C., "Spin-Wave Scattering at Low Temperatures in Manganite Films". Physical Review B 67, 134405 (2003).

Almasan, C. C., Chen, X. J., Zhang, C. L., Gardner, J. S, and Sarao, J. L.  "Electronic Transport of Bilayer Manganite La_1.2Sr_1.8Mn₂O₇".  Physica B 329-333, 811 (2003).

Chen, X. J., Zhang, C. L., Gardner, J. S, and Sarao, J. L., and Almasan, C. C.  "Variable-range-hopping Conductivity of Half-doped Bilayer Manganite LaSr₂Mn₂O₇ Single Crystal".  Physical Review B 68,064405 (2003).

Chen, X. J., Habermeier, H. U., and Almasan, C. C.  "Percolative Metal-Insulator Transition in La_0.9Sr_0.1MnO₃ Ultrathin Films by Resistive Relaxation".  Physical Review B 68, 132407 (2003).

Sandu, V., Cimpoiasu, E., Li, Shi, and Maple, M. B., Almasan, C. C. "Magnetotransport Properties of Y_1-xPrxBa₂Cu₃O_7-d Single Crystals (0.13 ≤ x ≤ 0.42)."  Physica C 408-410, 713 (2004).

Sandu, V., Cimpoiasu, E., Almasan, C. C., Paulikas, A. P., and Veal, B. W. "Charge Transport in Spin-Texture YBa₂Cu₃O_6.25".  Journal of Superconductivity 17, 455 (2004).

Sandu, V., Cimpoiasu, E., Katuwal, T., Shi Li, Maple, M. B. and Almasan, C. C.  "Evidence for Vortices in the Pseudogap Region of Y_1-xPrxBa₂Cu₃O_7-d from Angular Magnetoresistivity Measurements".  Physical Review Letters 93, 177005 (2004).

Chen, X. J., Zhang, H., Gu, G., Habermeier, H. U., Varela, M., Santamaria, J., and Almasan, C. C.  "Metal-Insulator Transition above Room Temperature in Maximum Collosal Magnetoresistance Manganite Thin Films".  Physical Review B 72, 104403 (2005).

Katuwal, T., Sandu, V., Taylor, B. J., Maple, M. B. and Almasan, C. C. "Vortex Dissipation in Y_0.54Pr_0.46Ba₂Cu₃O₇ Superconductors Above and Below Zero-Field Critical Temperature. "  Physical Review B 72, 174501 (2005).

Xiao, H., Hu, T., Sayles, T. A., Maple, M. B., and Almasan, C. C. "Angular Resistivity Study in CeCoIn₅ Single Crystals. " AIP Conference Proceedings, Volume 850, 719 (2006).

Hu, T., Xiao, H., Sayles, T. A., Maple, M. B., and Almasan, C. C. "Anomalous Resistivity of CeCoIn₅ Single Crystals."  AIP Conference Proceedings, Volume 850, 717 (2006).

Sandu, V., Katuwal, T., Taylor, B. J., Maple, M. B. and Almasan, C. C. "Scaling of Conductivity through the Critical Temperature in Y_0.54Pr_0.46Ba₂Cu₃O₇."  AIP Conference Proceedings, Volume 850, 815 (2006).

Sandu, V., Gyawali, P., Katuwal, T., Taylor, B. J., Maple, M. B. and Almasan, C. C.  "Re-Entrant Irreversibility and Magnetic Transition in Strongly Underdoped Y_0.47Pr_0.53Ba₂Cu₃O_7-d Single Crystals."  AIP Conference Proceedings, Volume 850, 479 (2006).

Hu, T., Xiao, H., Sayles, T. A., Maple, M. B., Maki, Kazumi, Dora, B, and Almasan, C. C. "Scaling Behavior of Angular Dependent Resistivity in CeCoIn₅: Possible Evidence for d-Wave Density Waves." Physical Review B 73，134509（2006）.

Xiao, H., Hu, T., Almasan, C. C., Sayles, T. A., and Maple, M. B. "Angular Dependent Torque Measurements on CeCoIn₅ Single Crystals." Physical Review B 73, 184511 (2006).

Katuwal, T., Sandu, V., Almasan, C. C., Taylor, B. J., and Maple, M. B. "High Temperature Mixed State c-axis Dissipation in Low Carrier Density Y_0.54Pr_0.46Ba₂Cu₃O₇." Physical Review B 73, 144510 (2006).

V. Peña, C. Visani, J. Garcia-Barriocanal, D. Arias, Z. Sefrioui, C. Leon, and J. Santamaria，and C. C. Almasan. "Spin diffusion versus proximity effect at ferromagnet/superconductor La_0.7Ca_0.3MnO₃ /YBa₂Cu₃O₇  interfaces." Physical  Review B 73, 104513 (2006).  

 

V. Sandu, P. Gyawali, T. Katuwal, C. C. Almasan, B. J. Taylor and M. B. Maple "Magnetic response of Y_0.47Pr_0.53Ba₂Cu₃O_7-d: Superconductivity, glassiness, and paramagnetism"  Physical  Review B 74, 184511 (2006). 

 

V Sandu, C Zhang, C C Almasan, B J Taylor, and M B Maple "Signature of the magnetic transitions in Y_0.2Pr_0.8Ba₂Cu₃O_7-δ in high field angular magnetoresistivity" Journal of Physics: Conference Series 51, 231  (2006).

 

Sandu, V., Gyawali, P., Katuwal, T., Almasan, C. C.,  Taylor, B. J., and Maple, M. B. "Glassiness and superconductivity in strongly Pr-doped YBa₂Cu₃O_7-δ single crystals" Journal of Optoelectronics and Advanced Materials 9, 1277 (2007).

 

Sandu, V., Gyawali, P., Katuwal, T., Almasan, C. C.,  Taylor, B. J., and Maple, M. B. "Irreversible Magnetization above Critical Temperature in Superconducting Y_0.47Pr_0.53Ba₂Cu₃O_7-d"  AIP Conference Proceedings, Volume 899, 279 (2007).

 

Xiao, H., Hu, T., Almasan, C. C., Sayles, T. A., and Maple, M. B. "Anomalous paramagnetic magnetization in the mixed state of CeCoIn₅ single crystals" Physical  Review B 76, 224510 (2007).

Tang Y. K, and Almasan, C. C. "Effect of Fe doping on the magnetic properties of GdBaCo2O5.5" Physical  Review B 77, 94403 (2008).

H. Xiao, T. Hu, T.A. Sayles, M.B. Maple, C.C. Almasan "Nonlinear paramagnetic magnetization in the mixed state of CeCoIn₅" Physica B 403,  952 (2008).

T. Hu, H. Xiao, C. Visani, Z. Sefrioui, J. Santamaria, C.C. Almasan "Stray field and spin-imbalance effects in La_0.7Ca_0.3MnO₃ /YBa₂Cu₃O_7-d multilayers" Physica B 403,  1167 (2008).

P. Gyawali, V. Sandu, C. C. Almasan, B. J. Taylor, and M. B. Maple "Doping dependence of vortex regimes in Y_1−xPr_xBa₂Cu₃O_7−d single crystals" Physical  Review B 77, 174504 (2008).