geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Hydrogen clusters that remain fluid at low temperature


, : Hydrogen clusters that remain fluid at low temperature. Physical Review Letters 101(20): 205301-205301

Superfluidity of hydrogen, predicted three decades ago, continues to elude experimental observation, due to the high freezing temperature of H2 at T=13.8 K. Here, large para-H2 clusters are obtained in a cryogenic pulsed free jet expansion and are studied via nonlinear Raman spectroscopy. Clusters formed from neat pH_{2} are solid as evidenced by the characteristic splitting of the rotational S0(0) line. However, clusters formed of highly diluted pH_{2} (< or = 1%) in He have a single S0(0) line and remain liquid at the estimated superfluid transition temperature of T=1-2 K.

US$19.90

PMID: 19113350

DOI: 10.1103/PhysRevLett.101.205301


Other references

Rodrigues, P.; Duarte., 1994: O conceito de especie revisitado. Unknown

Krull, I.S.; Stuting, H.H.; Krzysko, S.C., 1988: Conformational studies of bovine alkaline phosphatase in hydrophobic interaction and size-exclusion chromatography with linear diode array and low-angle laser light scattering detection. Alkaline phosphatase has been studied in hydrophobic interaction chromatography (HIC), using a bonded C1-ether phase on a silica gel support, together with an aqueous salt gradient. Its behavior under various gradient elution conditions has demons...

Fuller, M.P., 1977: Cold-hardiness in Lolium perenne. Experiments with perennial ryegrass in a freezing tank with closely-controlled freezing cycles showed that there were 2 clearly defined stages during hardening, involving the ability to survive after thawing (achieved after 10 days at 2-4 deg C) a...

Koo, Ted S.Y., 1962: Age and growth studies of red salmon scales by graphical means In Studies of Alaska red salmon. A scale curve method, designed to minimize personal interpretation of scale marks, was thoroughly tested on a large number of red salmon (Oncorhynchus nerka) scales and was found effective and accurate in the determination of age and growth of you...

Raval, G.N.; Parekh, L.J.; Patel, D.D.; Jha, F.P.; Sainger, R.N.; Patel, P.S., 2004: Clinical usefulness of alterations in sialic acid, sialyl transferase and sialoproteins in breast cancer. Sialic acid, the end moieties of the carbohydrate chains are biologically important and essential for functions of glycoconjugates and are reported to be altered in cancer patients. Two hundred and twenty five breast cancer (BC) patients, 100 pati...

Moracci, E., 1952: Use of progesterone implant. Archivio di Ostetricia E Ginecologia 57(3): 213-223

Seidel Dean, 1973: Gravity profiles; Northeast Pacific. Geotimes 18(3): 20-21

Holtzman, J.M.; Berman, H.; Ham, R., 1980: Health and early retirement decisions. Health and economic considerations have consistently played important roles in retirement decisions. Increases in early retirement benefits by some employers have increased the incentive to retire early, thus inducing a change in the health and ec...

Nakamura, T.; Ako, J.; Kadowaki, T.; Funayama, H.; Sugawara, Y.; Kubo, N.; Momomura, S., 2011: Impact of acute hyperglycemia during primary stent implantation in patients with ST-elevation myocardial infarction. Acute hyperglycemia is associated with increased mortality rates in patients with acute coronary syndrome. This study aimed to evaluate the relationship between the glucose level and clinical variables during primary intervention in patients with...

Imagama, S.; Wakao, N.; Ando, K.; Tauchi, R.; Tsuboi, A.; Ishiguro, N., 2012: Conservative treatment for cervical radiculopathy due to extensive foraminal disc calcification in children: a case report. Journal of Bone and Joint Surgery. American Volume 93(16): E93 1-5