Spin-transfer torque at finite bias from density functional theory and non-equilibrium Green's functions
Конференцијски прилог (Објављена верзија)
,
American Physical Society
Метаподаци
Приказ свих података о документуАпстракт
The spin-transfer torque (STT) exerted on a magnetic layer by a spin-polarized current represents a powerful handle to manipulate the magnetization. This
can make magnetic random access memories a reality. We have now implemented STTs in the electron transport code Smeagol (www.smeagol.tcd.ie), which
combines density functional theory with the non-equilibrium transport formalism. In particular we are able to compute the STT both in the linear response limit
and at finite bias, and for magnets with an arbitrary complex electronic structure, including spin-orbit interaction. Examples will be provided for both magnetic
tunnel junctions and spin-polarized scanning tunnel microscopy of magnetic ions on non-magnetic surfaces.
Кључне речи:
Spin-transfer torque / Density functional theory / Linear response / MagnetismИзвор:
American Physical Society, APS March Meeting 2013, March 18-22, 2013, 2013, 31 / A18.00002-Издавач:
- American Physical Society
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Popov, Igor AU - Sanvito, Stefano AU - Stamenova, Maria AU - Rungger, Ivan PY - 2013 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2677 AB - The spin-transfer torque (STT) exerted on a magnetic layer by a spin-polarized current represents a powerful handle to manipulate the magnetization. This can make magnetic random access memories a reality. We have now implemented STTs in the electron transport code Smeagol (www.smeagol.tcd.ie), which combines density functional theory with the non-equilibrium transport formalism. In particular we are able to compute the STT both in the linear response limit and at finite bias, and for magnets with an arbitrary complex electronic structure, including spin-orbit interaction. Examples will be provided for both magnetic tunnel junctions and spin-polarized scanning tunnel microscopy of magnetic ions on non-magnetic surfaces. PB - American Physical Society C3 - American Physical Society, APS March Meeting 2013, March 18-22, 2013 T1 - Spin-transfer torque at finite bias from density functional theory and non-equilibrium Green's functions SP - 31 / A18.00002 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2677 ER -
@conference{ author = "Popov, Igor and Sanvito, Stefano and Stamenova, Maria and Rungger, Ivan", year = "2013", abstract = "The spin-transfer torque (STT) exerted on a magnetic layer by a spin-polarized current represents a powerful handle to manipulate the magnetization. This can make magnetic random access memories a reality. We have now implemented STTs in the electron transport code Smeagol (www.smeagol.tcd.ie), which combines density functional theory with the non-equilibrium transport formalism. In particular we are able to compute the STT both in the linear response limit and at finite bias, and for magnets with an arbitrary complex electronic structure, including spin-orbit interaction. Examples will be provided for both magnetic tunnel junctions and spin-polarized scanning tunnel microscopy of magnetic ions on non-magnetic surfaces.", publisher = "American Physical Society", journal = "American Physical Society, APS March Meeting 2013, March 18-22, 2013", title = "Spin-transfer torque at finite bias from density functional theory and non-equilibrium Green's functions", pages = "31 / A18.00002", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2677" }
Popov, I., Sanvito, S., Stamenova, M.,& Rungger, I.. (2013). Spin-transfer torque at finite bias from density functional theory and non-equilibrium Green's functions. in American Physical Society, APS March Meeting 2013, March 18-22, 2013 American Physical Society., 31 / A18.00002. https://hdl.handle.net/21.15107/rcub_rimsi_2677
Popov I, Sanvito S, Stamenova M, Rungger I. Spin-transfer torque at finite bias from density functional theory and non-equilibrium Green's functions. in American Physical Society, APS March Meeting 2013, March 18-22, 2013. 2013;:31 / A18.00002. https://hdl.handle.net/21.15107/rcub_rimsi_2677 .
Popov, Igor, Sanvito, Stefano, Stamenova, Maria, Rungger, Ivan, "Spin-transfer torque at finite bias from density functional theory and non-equilibrium Green's functions" in American Physical Society, APS March Meeting 2013, March 18-22, 2013 (2013):31 / A18.00002, https://hdl.handle.net/21.15107/rcub_rimsi_2677 .