title: Properties of Doped GaSb Whiskers at Low Temperatures.
abstract: Temperature dependencies of GaSb whiskers' resistance doped with Te to concentration of 1.7 × 1018cm-3were measured in temperature range 1.5-300 K. At 4.2 K temperature, a sharp drop in the whisker resistance was found. The observed effect is likely connected with the contribution of two processes such as the electron localization in the whiskers and transition in superconducting state at temperature below 4.2 K. The whisker magnetoconductance is considered in the framework of weak antilocalization (WAL) model and connected with subsurface layers of the whiskers. The Shubnikov-de Haas (SdH) oscillatory effect is observed in high-quality n-type GaSb whiskers with tellurium doping concentration near the metal-insulator transition (MIT) for both longitudinal and transverse magnetoresistance.
authors.affiliation: Lviv Polytechnic National University, 12 S. Bandera Str., 79013, Lviv, Ukraine.
authors.forename: Igor
authors.initials: I
authors.lastname: Khytruk
authors.affiliation: Lviv Polytechnic National University, 12 S. Bandera Str., 79013, Lviv, Ukraine.|International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, Wroclaw, Poland.
authors.forename: Anatoly
authors.initials: A
authors.lastname: Druzhinin
authors.affiliation: Lviv Polytechnic National University, 12 S. Bandera Str., 79013, Lviv, Ukraine.|International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, Wroclaw, Poland.
authors.forename: Igor
authors.initials: I
authors.lastname: Ostrovskii
authors.affiliation: Lviv Polytechnic National University, 12 S. Bandera Str., 79013, Lviv, Ukraine. khoverko@lp.edu.ua.|International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, Wroclaw, Poland. khoverko@lp.edu.ua.
authors.forename: Yuriy
authors.initials: Y
authors.lastname: Khoverko
authors.affiliation: Lviv Polytechnic National University, 12 S. Bandera Str., 79013, Lviv, Ukraine.
authors.forename: Natalia
authors.initials: N
authors.lastname: Liakh-Kaguy
authors.affiliation: International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, Wroclaw, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Rogacki
keywords: Magnetoconductance; Superconductivity; Weak antilocalization; n-type GaSb whiskers