Electronic dipole resonance in smoky quartz

Kerssen, J.; Volger, J.

doi:10.1016/0375-9601(67)91006-7

Cited by 15 publications

(4 citation statements)

References 11 publications

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“…From these measurements, Frantsesson et a1.' arrived at essentially the same results as Herendeen and Silsbee7' -a (111) dipole model with equal zero-field splittings. The parameters they obtained for KCl:' Li' were 1ql = 12.5 GHz and p = 1.1 eA.…”

Section: (B) Tunneling Parameters and Relaxation Ratessupporting

confidence: 72%

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Paraelectric phenomena

Bridges

1975

C R C Critical Reviews in Solid State Sciences

147

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Section: (B) Tunneling Parameters and Relaxation Ratessupporting

confidence: 72%

“…Using a simple model, Zibold and Luty show that the expected change in the relative intensity (Equation , is the stress-induced phase difference, D is the constant given byand 111 is the intensity of the incident light. This equation gives a gocod fit to the data.…”

mentioning

confidence: 99%

Paraelectric phenomena

Bridges

1975

C R C Critical Reviews in Solid State Sciences

147

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“…5 ) a , 0 irradi- is very small and estimated to 0.5 peV [4]. The broad distribution of TLS is confirmed by electric dipole resonance [5] and coherent e!-.ct>ric dipole echoes [6]. I n a recent roinmunication [7] we pointed out the existence of a rapid relaxation mechanism in the mK temperature range.…”

Section: Introductionmentioning

confidence: 71%

Dielectric Relaxation in Smoky Quartz at Very Low Temperatures

Saint-Paul¹,

Frossati²

1982

Physica Status Solidi (b)

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Audiofrequency dielectric measurements down to 4 mK on y-irradiated quartz are reported. A t the lowest temperatures, the mean relaxation rate increases uith dipole concentration and shows a field dependence in small ac measuring fields. Similar properties are observed in other dielectric systems containing randomly distributed electric dipoles.Nous rapportons des mesures didlectriques effectukes d a m le domaine audiofrkquence et L trAa basse temperature (4 mK) sur du quartz fume. A trks basse temperature la frequence moyenne de relaxation augmente avec la concentration dipolaire et depend du champ alternatif de mesure bien que le champ soit faible. Des propriitt6a similaires ont ittit observites dans d'autres systemes dielectriques contenant des dipoles distribues albatoirement.

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“…Several arguments suggest that in smoky quartz a hole, that is an electron defect, is trapped at one of the four nearest neighbour oxygen of that aluminium impurity; that hole can move between two equivalent oxygen sites and generate consequently a two-level system which seems to be responsible for many of these anomalous properties. Electronic dipole resonance [2] at a frequency of 9 GHz is due to a resonant transition between the two configurational states which are stark-splitted by the cristalline field or by the tunneling between these two states. The distribution in energy of these two-level systems (TLS) is rather broad, of the order of 10-16 erg.…”

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confidence: 99%

Electric dipolar echoes in smoky quartz

Bernard¹,

Saint-Paul²,

Joffrin

1979

J. Phyique Lett.

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2014 On observe des échos dipolaires électriques dans un cristal de quartz naturel, irradié par rayonnement gamma. Ces expériences sont réalisées dans la gamme de température 5 à 20 mK et à une fréquence de 360 MHz. L'étude de la dépendance des échos spontané et stimulé en fonction de l'amplitude des impulsions ainsi que leur décroissance en fonction du temps indique qu'il existe deux types de dipoles : on évalue leurs moments transverses et longitudinaux puis leur densité d'état. Abstract. 2014 Electric dipolar echoes are observed in gamma irradiated natural quartz crystal in the 5 to 20 mK range at a frequency of 360 MHz. Studying the behaviour of both spontaneous and stimulated echoes, their dependance on the input pulse amplitude and their decay in time, we are led to think that there are two kinds of dipoles ; their transverse and longitudinal electric moments are evaluated ; their density of state is also extracted.

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Electronic dipole resonance in smoky quartz

Abstract: Microwave absorption in smoky quartz mono-crystal is ascribed to resonance transitions of trapped electrons between initially eonfigurational degenerated states, which are Stark-splitted by a polarizing electric field.

Cited by 15 publications

References 11 publications

Paraelectric phenomena

Paraelectric phenomena

Dielectric Relaxation in Smoky Quartz at Very Low Temperatures

Electric dipolar echoes in smoky quartz

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