Influence of Ortho-H2Clusters on the Mechanical Properties of Solid Para-H2
β Scribed by A. C. Clark; Z. G. Cheng; M. Bowne; X. Lin; M. H. W. Chan
- Book ID
- 106418630
- Publisher
- Springer US
- Year
- 2009
- Tongue
- English
- Weight
- 499 KB
- Volume
- 158
- Category
- Article
- ISSN
- 0022-2291
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π SIMILAR VOLUMES
We have observed an anomalous broadening of the NMR absorption line of diluted ortho-H z (with rotational angular momentum J :-1) in solid para-H 2 (J = O) as pressure is applied. Samples with 0.015 < x < 0.06, where x is the ortho mole fraction, were studied over the temperature range 1.2 < T < 4.2
Using NMR techniques on two single crystals of H2, we have determined the crystalline field Vc that splits the rotational ground state of isolated ortho-H2 molecules in para-He. From the temperature-dependent splitting of the NMR doublet peak, we obtain an average Ivcl/kB = 0.0083 + 0.002 K independ