caa a22 4500 467915121 CHVBK 20180406152859.0 cr unu---uuuuu 170328e20060101xx s 000 0 eng 10.1134/S0020441206010222 doi (NATIONALLICENCE)springer-10.1134/S0020441206010222 Gorbunov A. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia aut An insert for a helium cryostat for experiments with a tip near the surface of a sample in superfluid helium [Elektronische Daten] [A. Gorbunov] The design of an insert for an optical helium cryostat intended for experiments with a tip near the surface of a sample in superfluid helium is described. A piezoelectric drive used in the design is based on a bimorphous piezoceramic plate for precisely bringing a standard probe of a tunneling microscope to a sample and "softly” touching its surface with the probe tip. The insert was used in an experiment with a GaAs-AlGaAs semiconductor heterostructure with a pair of tunneling-coupled quantum wells. The possibility is demonstrated of creating a lateral potential trap in the plane of quantum wells for quasi-two-dimensional indirect excitons owing to a nonuniform distribution of the electric field in the sample near the tip. Pleiades Publishing, Inc., 2006 07.20.Mc nationallicence 71.35.Lk nationallicence 78.67.De nationallicence Instruments and Experimental Techniques Nauka/Interperiodica 49/1(2006-01-01), 144-147 0020-4412 49:1<144 2006 49 10786 https://doi.org/10.1134/S0020441206010222 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020441206010222 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Gorbunov A. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia aut NATIONALLICENCE 773 0- Instruments and Experimental Techniques Nauka/Interperiodica 49/1(2006-01-01), 144-147 0020-4412 49:1<144 2006 49 10786 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer