TITLE

Ferromagnetic and ordered MnSi(111) epitaxial layers

AUTHOR(S)
Magnano, E.; Bondino, F.; Cepek, C.; Parmigiani, F.; Mozzati, M. C.
PUB. DATE
April 2010
SOURCE
Applied Physics Letters;4/12/2010, Vol. 96 Issue 15, p152503
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report a comprehensive study of ordered MnSi films grown on Si(111) which provides clear proofs that these MnSi films have the same magnetic and electronic properties of bulk MnSi compound, so closing a long-standing question. Furthermore, our measurements show the presence of a room-temperature ferromagnetic transition consistent with the ferromagnetic ground state predicted for Mn atoms with reduced coordination near surfaces and interfaces of silicon by recent calculations of Hortamani et al. [Phys. Rev. B 78, 104402 (2008)]. The possibility of growing layers on semiconductors which are ferromagnetic at room temperature (RT) is of paramount importance for nonvolatile memories and spintronic devices based on the injection of spin-polarized current from a ferromagnetic metal into a semiconductor. In this perspective MnSi films grown on Si substrates represent an interesting case study.
ACCESSION #
49193313

 

Related Articles

  • Colossal magnetoresistance and charge order in La1-xCaxMnO3 (invited). Ramirez, A.P.; Cheong, S.-W. // Journal of Applied Physics;4/17/1997, Vol. 81 Issue 8, p5337 

    Reviews the material aspects of the La1-xCaxMnO3 family of double-exchange ferromagnets. Low temperature regimes of the compound family; Transport, magnetic, thermal and acoustic response in the regimes.

  • Ferromagnetic properties and structures of the Mn-implanted GaAs semiconductor. Chen, Chenjia; Cai, Ming; Wang, Xuezhong; Xu, Shifa; Zhang, Ming; Ding, Xiaomin; Sun, Yunxi // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p5636 

    Submicron ferromagnets have been successfully incorporated into semi-insulating (001) GaAs crystals by Mn[sup +] ion implantation and subsequent rapid annealing. Magnetization measurements reveal room-temperature ferromagnetism. The structural and compositional properties of crystallites have...

  • High temperature magnetic properties of nanocrystalline PrCo5 and YCo5 alloys obtained by mechanical milling. Galindo, J. T. Elizalde; Gómez, F. J. Rivera; Aquino, J. A. Matutes // Journal of Applied Physics;Apr2009, Vol. 105 Issue 7, p07A725 

    Enhanced hard magnetic properties were obtained in nanostructured PrCo5 and YCo5 intermetallic compounds processed by mechanical milling for 240 min, and subsequent annealing in high vacuum at 1103 K for 1.0 and 2.5 min, respectively, followed by quenching in water. X-ray diffraction data...

  • Intrinsic Gilbert damping constant in epitaxial Co2Fe0.4Mn0.6Si Heusler alloys films. Kwilu, Augustin L.; Mikihiko Oogane; Hiroshi Naganuma; Masashi Sahashi; Yasuo Ando // Journal of Applied Physics;2015, Vol. 117 Issue 17, p17D140-1 

    The (001)-oriented and (110)-oriented epitaxial grown Co2Fe0.4Mn0.6Si films were fabricated by magnetron sputtering technique in order to investigate the annealing temperature dependence of the intrinsic Gilbert damping constant (a). The stuck films, deposited on MgO and Al2O3 a-plane...

  • Oxygen precipitation and bulk microdefects induced by the pre- and postepitaxial annealing in N/N+(100) silicon wafers. Wijaranakula, W.; Matlock, J. H.; Mollenkopf, H. // Journal of Applied Physics;12/15/1987, Vol. 62 Issue 12, p4897 

    Presents information on a study which preannealed substrate wafers used for fabrication of epitaxial silicon wafers heavily doped with antimony prior to epitaxial deposition. Comparison between precipitation in post-epitaxial annealed and nonannealed wafers; Types of bulk microdefects observed...

  • Magnetic Phase Transitions and Phase Diagrams of DyMn[sub 2]Ge[sub 2]. Guanghua, Guo; Eremin, M. V.; Kirste, A.; Kolmakova, N. P.; Lagutin, A. S.; Levitin, R. Z.; von Ortenberg, M.; Sidorenko, A. A. // Journal of Experimental & Theoretical Physics;Oct2001, Vol. 93 Issue 4, p796 

    The experimental studies of magnetic phase transitions in the layered tetragonal intermetallic compound DyMn[sub 2]Ge[sub 2] are continued. The existence of spontaneous phase transitions is confirmed by the results of measurements of the temperature dependences of lattice parameters and the...

  • Short-Range Magnetic Order in a Spin Density Wave in Cr-Based Multilayers. Men�shov, V. N.; Tugushev, V. V. // Journal of Experimental & Theoretical Physics;Oct2001, Vol. 93 Issue 4, p786 

    A mechanism of the formation of the short antiferromagnetic order with a spin density wave (SDW) in the vicinity of the interfaces in the Fe/Cr type multilayers is proposed. The main reason behind the emergence of magnetic ordering with SDWs is the redistribution of charge (and, hence, spin)...

  • Magnetocaloric effects in RNiIn (R = Gd-Er) intermetallic compounds. Zhang, H.; Xu, Z. Y.; Zheng, X. Q.; Shen, J.; Hu, F. X.; Sun, J. R.; Shen, B. G. // Journal of Applied Physics;Jun2011, Vol. 109 Issue 12, p123926 

    Magnetic properties and magnetocaloric effects (MCEs) of the intermetallic RNiIn (R = Gd-Er) compounds have been investigated in detail. GdNiIn and ErNiIn compounds exhibit a ferromagnetic (FM) to paramagnetic (PM) transition around the respective Curie temperatures. However, it is found that...

  • Giant reversible magnetocaloric effect in ErMn2Si2 compound with a second order magnetic phase transition. Li, Lingwei; Nishimura, Katsuhiko; Hutchison, Wayne D.; Qian, Zhenghong; Huo, Dexuan; NamiKi, Takahiro // Applied Physics Letters;4/9/2012, Vol. 100 Issue 15, p152403 

    The magnetic properties and magnetocaloric effect (MCE) in the ternary intermetallic compound ErMn2Si2 have been studied by magnetization and heat capacity measurements. A giant reversible MCE has been observed, accompanied by a second order magnetic phase transition from paramagnetic to...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics