High-spin states in107Sn

Ishii, T.; Makishima, Akio; Koganemaru, K.; Saito, Y.; Ogawa, Masahiro; Ishii, M.

doi:10.1007/bf01301275

Cited by 23 publications

(8 citation statements)

References 15 publications

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“…Since any E1 transition from the hu/2 to ds/2 or g7/2 orbit is strictly forbidden, some configurations due to core excitation must be admixed in the initial and final states. B (E 1; 9----, 8 +) is calculated to be 10 -4 W.u., comparable with B(E1; 11/2---,9/2 +) observed in 1~ [7]. Consequently the excited states at a few MeV may include such an admixture of the order of 10 -2.…”

Section: The 14-state and Other Odd-parity Statessupporting

confidence: 63%

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Nuclear structure of the yrast 6+, 10+ and 14? states in106Sn

Makishima

Ishii²,

Nakajima

et al. 1994

Z. Physik A - Hadrons and Nuclei

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Abstract. The nuclear precession of m6gn in the 6 + state was measured relative to that of ~~ by the IPAD method: 0(6+; m6Sn)/0(6+; I~ Available data on the 6 + state in l~ give g(6 + ; 1~ = -0.14(9), which is consistent with the seniority v = 2 configuration:(vds/z'Vg7/2)6+. B(E2; 10+--.8 +) was measured to be 6.4(10) W.u. for 1~ and 0.62(5) W.u. for l~ This difference could not be explained by the v < 4 configurations. The 14~13 transition turned out to be an M1/ E2 mixed transition and so the yrast I= 14 state was identified with a state of the Vhlm band.

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Section: The 14-state and Other Odd-parity Statessupporting

confidence: 63%

“…In the present experiments all a charged-particle multiplicity filter "Si box" [7,13,14] was employed to identify y-ray emitters. Figure 1 shows the setup for an experiment on the integral perturbed angular distribution (IPAD) of )'-rays.…”

Section: Methodsmentioning

confidence: 99%

Nuclear structure of the yrast 6+, 10+ and 14? states in106Sn

Makishima

Ishii²,

Nakajima

et al. 1994

Z. Physik A - Hadrons and Nuclei

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“…Good agreement was obtained for the experimentally well studied l~ [52], 1~ [39,53] and l~ [54], where also the vhl 1/2 levels are known. Also, to test the influence of the residual interaction on the A-dependence of these single particle orbits two types of interaction, an empirical realistic (SUS) and a schematic (SDI) one (see Sect.…”

Section: The Sn Isotopes the Neutron-neutron (Vv) Interac-mentioning

confidence: 57%

Shell model structure at100Sn ? The nuclides98Ag,103In, and104, 105Sn

Schubart

Grawe²,

Heese³

et al. 1995

Z. Physik A - Hadrons and Nuclei

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The neutron deficient nuclei 9SAg, ~~ with Tz = 2 and 1~ l~ (Tz = 5/2) were studied in-beam following the reaction of 250 MeV 58Ni + 5~ Neutron and charged particle (p, 7) gated 77-coincidence spectra were used to identify these nuclei, which are populated with yields between 0.05% and 2% of the total residue cross section, and to determine their level schemes. In a comprehensive shell model study various approaches for the residual interaction were used to describe these newly and several previously studied neutron deficient nuclei. As a result predictions for the neutron single particle energies for ~~176 are obtained and used to discuss the next generation of experiments.

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“…But, this FS is not consistent with the carrier concentration derived from the Hall coefficient measurement. 24 These features for the transition at T 1 of CeRhAs resembles the CDW transition in 1T-TiSe 2 , which undergoes a commensurate ͑2 ϫ 2 ϫ 2͒ transition at T C ϳ 200 K. 25 The normal phase of TiSe 2 above T C is semimetal with a small ⌫-point hole FS and L-point electron FS in the hexagonal Brillouin zone. 26 Because these FSs are difficult to nest each other, TiSe 2 does not fit into the conventional FS nesting model.…”

Section: Discussionmentioning

confidence: 94%

Pressure effects on the phase transitions and energy gap in CeRhAs

et al. 2005

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We report on the electrical resistivity, thermal expansion, and x-ray diffraction measurements of singlecrystalline sample of the so-called Kondo semiconductor CeRhAs under pressures up to 3 GPa. This compound undergoes successive structural phase transitions at T 1 = 360, T 2 = 235, and T 3 = 165 K at ambient pressure. On cooling below T 1 , the crystal structure changes from the hexagonal LiGaGe-type to the orthorhombic-TiNiSi-type with a 2b ϫ 2c superlattice. By applying pressure up to 1.5 GPa, T 1 increases with a ratio of 270 K/GPa, whereas both T 2 and T 3 decrease with −100 K / GPa. The concurrent decrease of both the a parameter and the energy gap along the a axis with increasing pressure contradict the c-f hybridization gap model in which the gap is enlarged by the enhancement of hybridization between the 4f electrons and conduction band. Instead, a sort of charge-density-wave transition at T 1 is proposed for the origin of gap formation of this compound. The semiconducting behavior in the resistivity vanishes when the phase with the 2b ϫ 2c superlattice decomposes into two orthorhombic phases below 100 K and above 1.5 GPa.

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High-spin states in107Sn

Cited by 23 publications

References 15 publications

Nuclear structure of the yrast 6+, 10+ and 14? states in106Sn

Nuclear structure of the yrast 6+, 10+ and 14? states in106Sn

Shell model structure at100Sn ? The nuclides98Ag,103In, and104, 105Sn

Pressure effects on the phase transitions and energy gap in CeRhAs

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