Zobrazeno 1 - 10
of 915
pro vyhledávání: '"Costache, M."'
Publikováno v:
Advances in Electrical and Computer Engineering, Vol 20, Iss 3, Pp 49-56 (2020)
Cardiac anomalies are usually marked through irregular cardiac cycles. Atrial fibrillation is given through a rapid beating of the atria, announcing a possible heart failure or stroke. Electrocardiograms are an efficient way of supervising the elec
Externí odkaz:
https://doaj.org/article/299c2573659b4567b6ac13ae2f2fcd49
Autor:
Colombano, M. F., Arregui, G., Bonell, F., Capuj, N. E., Chavez-Angel, E., Pitanti, A., Valenzuela, S. O., Sotomayor-Torres, C. M., Navarro-Urrios, D., Costache, M. V.
Publikováno v:
Phys. Rev. Lett. 125, 147201 (2020)
The resonant enhancement of mechanical and optical interaction in optomechanical cavities enables their use as extremely sensitive displacement and force detectors. In this work we demonstrate a hybrid magnetometer that exploits the coupling between
Externí odkaz:
http://arxiv.org/abs/1909.03924
Autor:
Gebeyehu, Z. M., Parui, S., Sierra, J. F., Timmermans, M., Esplandiu, M. J., Brems, S., Huyghebaert, C., Garello, K., Costache, M. V., Valenzuela, S. O.
Publikováno v:
2D Materials, 6, 034003 (2019)
We demonstrate a high-yield fabrication of non-local spin valve devices with room-temperature spin lifetimes of up to 3 ns and spin relaxation lengths as long as 9 $\mu$m in platinum-based chemical vapor deposition (Pt-CVD) synthesized single-layer g
Externí odkaz:
http://arxiv.org/abs/1905.04953
Autor:
Raes, B., Cummings, A. W., Bonell, F., Costache, M. V., Sierra, J. F., Roche, S., Valenzuela, S. O.
Publikováno v:
Physical Review B, 95, 085403 (2017)
We generalize the diffusive model for spin injection and detection in nonlocal spin structures to account for spin precession under an applied magnetic field in an anisotropic medium, for which the spin lifetime is not unique and depends on the spin
Externí odkaz:
http://arxiv.org/abs/1804.09426
Publikováno v:
Clinical, Cosmetic and Investigational Dermatology, Vol Volume 15, Pp 1325-1331 (2022)
Lawrence Chukwudi Nwabudike,1 Ana Maria Oproiu,2,3 Ioana Mihaela Dogaru,2,3,* Mariana Costache,3,4,* Alin Laurentiu Tatu5– 7 1Outpatient Dermatology, N. Paulescu National Institute of Bucharest, Bucharest, Romania; 2Department of Plastic Su
Externí odkaz:
https://doaj.org/article/f53d39d88b03420aa611adf7b6e92a3e
Autor:
Torres, W. Savero, Sierra, J. F., Benítez, L. A., Bonell, F., Costache, M. V., Valenzuela, S. O.
Spin Hall effects have surged as promising phenomena for spin logics operations without ferromagnets. However, the magnitude of the detected electric signals at room temperature in metallic systems has been so far underwhelming. Here, we demonstrate
Externí odkaz:
http://arxiv.org/abs/1709.01854
Publikováno v:
Clinical, Cosmetic and Investigational Dermatology, Vol Volume 14, Pp 1909-1912 (2021)
Lawrence Chukwudi Nwabudike,1,* Ana Maria Oproiu,2,3,* Ioana Mihaela Dogaru,2,3,* Mariana Costache,2,4,* Cristian Onisor,5 Alin Laurentiu Tatu5– 7 1N. Paulescu National Institute of Diabetes, Bucharest, Romania; 2Carol Davila Univer
Externí odkaz:
https://doaj.org/article/4ff4e9ecbeeb4233921985aa6561e18a
Publikováno v:
Nano Letters, pp 4000-4005, 15 (2015)
We investigate hot carrier propagation across graphene using an electrical nonlocal injection/detection method. The device consists of a monolayer graphene flake contacted by multiple metal leads. Using two remote leads for electrical heating, we gen
Externí odkaz:
http://arxiv.org/abs/1506.04575
Publikováno v:
Appl. Phys. Lett. 103, 112401 (2013)
We demonstrate a large enhancement of the spin accumulation in monolayer graphene following electron-beam induced deposition of an amorphous carbon layer at the ferromagnet-graphene interface. The enhancement is 10^4-fold when graphene is deposited o
Externí odkaz:
http://arxiv.org/abs/1506.04582
Autor:
Costache, M. V., Neumann, I., Sierra, J. F., Marinova, V., Gospodinov, M. M., Roche, S., Valenzuela, S. O.
Publikováno v:
Phys. Rev. Lett. 112, 086601 (2014)
We report on electric-field and temperature dependent transport measurements in exfoliated thin crystals of Bi$_{2}$Se$_{3}$ topological insulator. At low temperatures ($< 50$ K) and when the chemical potential lies inside the bulk gap, the crystal r
Externí odkaz:
http://arxiv.org/abs/1404.2198