Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Barrena, Vıctor"'
Autor:
Escribano, Samuel D., Barrena, Víctor, Perconte, David, Moreno, Jose Antonio, Lomana, Marta Fernández, Águeda, Miguel, Herrera, Edwin, Wu, Beilun, Rodrigo, Jose Gabriel, Prada, Elsa, Guillamón, Isabel, Yeyati, Alfredo Levy, Suderow, Hermann
The ultimate spatial limit to establish a Josephson coupling between two superconducting electrodes is an atomic-scale junction. The Josephson effect in such ultrasmall junctions has been used to unveil new switching dynamics, study coupling close to
Externí odkaz:
http://arxiv.org/abs/2311.12783
Autor:
Noah, Avia, Alpern, Hen, Singh, Sourabh, Gutfreund, Alon, Zisman, Gilad, Feld, Tomer D., Vakahi, Atzmon, Remennik, Sergei, Paltiel, Yossi, Huber, Martin E., Barrena, Victor, Suderow, Hermann, Steinberg, Hadar, Millo, Oded, Anahory, Yonathan
Publikováno v:
Nano Letters 2022 22 (7), 3165-3172
CrGeTe3 (CGT) is a semiconducting vdW ferromagnet shown to possess magnetism down to a two-layer thick sample. Although CGT is one of the leading candidates for spintronics devices, a comprehensive analysis of CGT thickness dependent magnetization is
Externí odkaz:
http://arxiv.org/abs/2207.08845
Autor:
Herrera-Vasco, Edwin, Guillamón, Isabel, Barrena, Víctor, Herrera, William, Galvis, Jose Augusto, Yeyati, Alfredo Levy, Rusz, Jan, Oppeneer, Peter M., Knebel, Georg, Brison, Jean Pascal, Flouquet, Jacques, Aoki, Dai, Suderow, Hermann
Publikováno v:
Nature 616, 465-469 (2023)
Electrons can form a two-dimensional electron gas at metal surfaces, where lateral confinement leads to quantum-well states. Such states have been observed for highly itinerant electrons, but it remains an open question whether quantum-well states ca
Externí odkaz:
http://arxiv.org/abs/2206.04704
Autor:
Herrera, Edwin, Wu, Beilun, O'Leary, Evan, Ruiz, Alberto M., Águeda, Miguel, Talavera, Pablo García, Barrena, Víctor, Azpeitia, Jon, Munuera, Carmen, Hernández, Mar García, Wang, Lin-Lin, Kaminski, Adam, Canfield, Paul C., Baldoví, José, Guillamón, Isabel, Suderow, Hermann
Publikováno v:
Phys. Rev. Materials 7, 024804 (2023)
The orthorhombic compound AuSn4 is compositionally similar to the Dirac node arc semimetal PtSn$_4$. AuSn$_4$ is, contrary to PtSn$_4$, superconducting with a critical temperature of T$_c$ = 2.35 K. Recent measurements present indications for quasi t
Externí odkaz:
http://arxiv.org/abs/2205.09975
Autor:
Martín-Vega, Francisco, Herrera, Edwin, Wu, Beilun, Barrena, Víctor, Mompeán, Federico, García-Hernández, Mar, Canfield, Paul C., Black-Schaffer, Annica M., Baldoví, José J., Guillamón, Isabel, Suderow, Hermann
The electronic bandstructure of Au$_2$Pb has a Dirac cone which gaps when undergoing a structural transition into a low temperature superconducting phase. This suggests that the superconducting phase ($T_c=1.1$ K) might hold topological properties at
Externí odkaz:
http://arxiv.org/abs/2205.07094
Autor:
Martín-Vega, Francisco, Barrena, Víctor, Sánchez-Barquilla, Raquel, Fernández-Lomana, Marta, Llorens, José Benito, Wu, Beilun, Fente, Antón, Duplain, David Perconte, Horcas, Ignacio, López, Raquel, Blanco, Javier, Higuera, Juan Antonio, Mañas-Valero, Samuel, Jo, Na Hyun, Schmidt, Juan, Canfield, Paul C., Rubio-Bollinger, Gabino, Rodrigo, José Gabriel, Herrera, Edwin, Guillamón, Isabel, Suderow, Hermann
Publikováno v:
Review of Scientific Instruments 92, 103705 (2021)
A Scanning Tunneling Microscope (STM) is one of the most important scanning probe tools available to study and manipulate matter at the nanoscale. In a STM, a tip is scanned on top of a surface with a separation of a few \AA. Often, the tunneling cur
Externí odkaz:
http://arxiv.org/abs/2204.13011
Autor:
Park, Sunghun, Barrena, Vıctor, Mañas-Valero, Samuel, Baldoví, José J., Fente, Antón, Herrera, Edwin, Mompeán, Federico, García-Hernández, Mar, Rubio, Ángel, Coronado, Eugenio, Yeyati, Alfredo Levy, Suderow, Hemann
Bound states in superconductors are expected to exhibit a spatially resolved electron-hole asymmetry which is the hallmark of their quantum nature. This asymmetry manifests as oscillations at the Fermi wavelength, which is usually tiny and thus washe
Externí odkaz:
http://arxiv.org/abs/2103.04164
Autor:
Fernández-Lomana, Marta, Barrena, Víctor, Wu, Beilun, Delgado, Sara, Mompeán, Federico, García-Hernández, Mar, Suderow, Hermann, Guillamón, Isabel
The magnetoresistance of iron pnictide superconductors is often dominated by electron-electron correlations and deviates from the H$^2$ or saturating behaviors expected for uncorrelated metals. Contrary to similar Fe-based pnictide systems, the super
Externí odkaz:
http://arxiv.org/abs/2009.11585
Autor:
Llorens, José Benito, Herrera, Edwin, Barrena, Víctor, Wu, Beilun, Heinsdorf, Niclas, Borisov, Vladislav, Valentí, Roser, Meier, William R., Bud'ko, Sergey, Canfield, Paul C., Guillamón, Isabel, Suderow, Hermann
Publikováno v:
Phys. Rev. B 103, 060506 (2021)
High critical temperature superconductivity often occurs in systems where an antiferromagnetic order is brought near $T=0K$ by slightly modifying pressure or doping. CaKFe$_4$As$_4$ is a superconducting, stoichiometric iron pnictide compound showing
Externí odkaz:
http://arxiv.org/abs/2009.11246
Autor:
Wu, Beilun, Barrena, Víctor, Mompeán, Federico, García-Hernández, Mar, Suderow, Hermann, Guillamón, Isabel
Publikováno v:
Phys. Rev. B 101, 205123 (2020)
We present magnetoresistivity measurements in high-quality single crystals of the Nowotny chimney ladder compound Ru$_2$Sn$_3$. We find a linear and nonsaturating magnetoresistance up to 20 T. The magnetoresistance changes with the magnetic field ori
Externí odkaz:
http://arxiv.org/abs/2005.04632