Zobrazeno 1 - 8
of 8
pro vyhledávání: '"D. B. Mast"'
Autor:
J. R. Owers-Bradley, Bimal K. Sarma, John B Ketterson, D. B. Mast, William P Halperin, I. D. Calder
Publikováno v:
Physical Review Letters. 45:266-269
Measurements of the attenuation and velocity of pulsed high-frequency sound have been performed up to 133 MHz in superfluid $^{3}\mathrm{He}$-$B$. A new collective mode of the order parameter was discovered at a frequency extrapolated to ${T}_{c}$ of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::077e31c6b3f6c146c458e1558911ed67
https://doi.org/10.1103/physrevlett.45.266
https://doi.org/10.1103/physrevlett.45.266
Autor:
D. B. Mast, William P Halperin, John B Ketterson, J. R. Owers-Bradley, Bimal K. Sarma, I. D. Calder
Publikováno v:
Physical Review Letters. 45:1866-1869
The group velocity of high-frequency sound for $T\ensuremath{\ll}{T}_{c}$, and the group velocity and attenuation of sound at higher temperatures, have been measured and analyzed to give the frequencies and coupling strengths of two order-parameter c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbcd265de165b00377a7e7e4694d030c
https://doi.org/10.1103/physrevlett.45.1866
https://doi.org/10.1103/physrevlett.45.1866
Publikováno v:
Physical Review B. 29:5239-5242
Measurements of the low-frequency electron mobility on a helium surface are extended to higher densities and to lower temperatures than those previously reported in the literature. For electron areal densities greater than 5 \ifmmode\times\else\textt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22f0aeb492c12ce29750354aea3ea3d9
https://doi.org/10.1103/physrevb.29.5239
https://doi.org/10.1103/physrevb.29.5239
Autor:
Bellave Shivaram, D. B. Mast, William P Halperin, M. W. Meisel, Bimal K. Sarma, John B Ketterson
Publikováno v:
Physical Review Letters. 49:1646-1649
A high-resolution acoustic impedance technique has been used to investigate the real squashing, J = 2, mode in /sup 3/He-B. For a magnetic field perpendicular to the sound propagation direction, six components have been observed. The two center state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d60313707f57be2f7f306739f32b57b
https://doi.org/10.1103/physrevlett.49.1646
https://doi.org/10.1103/physrevlett.49.1646
Publikováno v:
Physical Review Letters. 54:1706-1709
Two-dimensional magnetoplasmons are studied in a classical gas of electrons bound to a liquid-helium surface. A new and unpredicted resonant mode has been observed. The density and magnetic field dependences of this new mode differ strikingly from no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc81d3550433300388cd4a30c89b36dd
https://doi.org/10.1103/physrevlett.54.1706
https://doi.org/10.1103/physrevlett.54.1706
Autor:
Bimal K. Sarma, D. B. Mast, Robert A. Buhrman, William P Halperin, John B Ketterson, C. M. Bastuscheck
Publikováno v:
Le Journal de Physique Colloques. 39:C6-1164
We have investigated t he temperature dependent static magnetization of an amorphous car- bon black (Carbolac I) for use as a low temperature secondary thermometer. We find that the magne- tization obeys Curie's law above 10 mK. Measurements performe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a04024a7842162e05f3fdea5bcd19a17
https://doi.org/10.1051/jphyscol:19786515
https://doi.org/10.1051/jphyscol:19786515
Autor:
Bimal K. Sarma, J. R. Owers-Bradley, John B Ketterson, I. D. Calder, D. B. Mast, William P Halperin
Publikováno v:
Physica B+C. 107:685-686
The locations of the squashing and real squashing (new) modes in superfluid 3HeB have been found using an acoustic impedance technique for frequencies of 12.1, 36.3 and 60.5 MHz at pressures between 1.74 and 4.88 bar.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e6f235d2f4de8e14f12b7625dabb542
https://doi.org/10.1016/0378-4363(81)90645-8
https://doi.org/10.1016/0378-4363(81)90645-8
Publikováno v:
Surface Science Letters. 142:A235
The power absorbed by a two-dimensional sheet of electrons when driven in a low frequency compressional mode exhibits a sharp maximum versus temperature just above the melting point. The dependence of this excess power absorption on frequency is expl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::160d149ec8187784039dc27457e1714e
https://doi.org/10.1016/0167-2584(84)90020-3
https://doi.org/10.1016/0167-2584(84)90020-3