Helium-four transition in a restricted geometry below and above the bulk solidification pressure
| ISSN: |
0378-4363
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|---|---|
| Source: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
|
| Topics: |
Physics
|
| Type of Medium: |
Electronic Resource
|
| URL: |
| _version_ | 1798292025421856770 |
|---|---|
| autor | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. |
| autorsonst | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. |
| book_url | http://linkinghub.elsevier.com/retrieve/pii/0378-4363(81)90594-5 |
| datenlieferant | nat_lic_papers |
| fussnote | Using a torsional oscillator technique, we have investigated the onset of superfluidity of ^4He in Vycor at pressures in the liquid region and at higher pressures where bulk ^4He is solid. The lower pressure data trace out the onset temperature for superflow in Vycor as a function of pressure, which is roughly parallel to the bulk lambda line but about 0.25K lower. At OK, calculated values of the superfluid fraction are about 0.16 at 1 bar and 0.12 at 25 bar; these numbers contain a geometrical constant. Higher pressure data indicate that superflow can occur in Vycor at pressures as much as 20 bar above bulk solidifcation. An unexplained decrease in period is observed below the bulk solidification temperature. |
| hauptsatz | hsatz_simple |
| identnr | NLZ179230204 |
| issn | 0378-4363 |
| journal_name | Physica B+C |
| materialart | 1 |
| package_name | Elsevier |
| publikationsort | Amsterdam |
| publisher | Elsevier |
| reference | 107 (1981), S. 583-584 |
| search_space | articles |
| shingle_author_1 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. |
| shingle_author_2 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. |
| shingle_author_3 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. |
| shingle_author_4 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. |
| shingle_catch_all_1 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. Helium-four transition in a restricted geometry below and above the bulk solidification pressure 0378-4363 03784363 Elsevier |
| shingle_catch_all_2 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. Helium-four transition in a restricted geometry below and above the bulk solidification pressure 0378-4363 03784363 Elsevier |
| shingle_catch_all_3 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. Helium-four transition in a restricted geometry below and above the bulk solidification pressure 0378-4363 03784363 Elsevier |
| shingle_catch_all_4 | Brewer, D.F. Liezhao, C. Girit, C. Reppy, J.D. Helium-four transition in a restricted geometry below and above the bulk solidification pressure 0378-4363 03784363 Elsevier |
| shingle_title_1 | Helium-four transition in a restricted geometry below and above the bulk solidification pressure |
| shingle_title_2 | Helium-four transition in a restricted geometry below and above the bulk solidification pressure |
| shingle_title_3 | Helium-four transition in a restricted geometry below and above the bulk solidification pressure |
| shingle_title_4 | Helium-four transition in a restricted geometry below and above the bulk solidification pressure |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
| timestamp | 2024-05-06T08:41:57.447Z |
| titel | Helium-four transition in a restricted geometry below and above the bulk solidification pressure |
| titel_suche | Helium-four transition in a restricted geometry below and above the bulk solidification pressure Using a torsional oscillator technique, we have investigated the onset of superfluidity of ^4He in Vycor at pressures in the liquid region and at higher pressures where bulk ^4He is solid. The lower pressure data trace out the onset temperature for superflow in Vycor as a function of pressure, which is roughly parallel to the bulk lambda line but about 0.25K lower. At OK, calculated values of the superfluid fraction are about 0.16 at 1 bar and 0.12 at 25 bar; these numbers contain a geometrical constant. Higher pressure data indicate that superflow can occur in Vycor at pressures as much as 20 bar above bulk solidifcation. An unexplained decrease in period is observed below the bulk solidification temperature. |
| topic | U |
| uid | nat_lic_papers_NLZ179230204 |