GB1328649A - Method of generating spontaneous elastic-spin oscillations in ferromagnetopiezoelectric semiconductor circuits - Google Patents

Method of generating spontaneous elastic-spin oscillations in ferromagnetopiezoelectric semiconductor circuits

Info

Publication number
GB1328649A
GB1328649A GB5938370A GB5938370A GB1328649A GB 1328649 A GB1328649 A GB 1328649A GB 5938370 A GB5938370 A GB 5938370A GB 5938370 A GB5938370 A GB 5938370A GB 1328649 A GB1328649 A GB 1328649A
Authority
GB
United Kingdom
Prior art keywords
oscillations
elastic
spin
slab
ferromagnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5938370A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wojskowa Akademia Techniczna Im
Original Assignee
Wojskowa Akademia Techniczna Im
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PL137535A external-priority patent/PL63517B1/pl
Application filed by Wojskowa Akademia Techniczna Im filed Critical Wojskowa Akademia Techniczna Im
Publication of GB1328649A publication Critical patent/GB1328649A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Pressure Sensors (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Hall/Mr Elements (AREA)

Abstract

1328649 Solid state devices WOJSKOWA AKADEMIA TECHHICZNA IM JAROSLAWA DABROWSKIEGO 14 Dec 1970 [13 Dec 1969] 59383/70 Heading H1K A device using electron-phenon interaction to obtain spontaneous elastic-spin oscillations comprises a layer 2 of piezoelectric semiconductor material having two ohmic electrodes 3, on a slab 1 of ferromagnetic material. The Specification states that elastic-spin surface oscillations generated in the ferromagnetic slab 1 due to thermal fluctuations give rise to elastic oscillations in the semi-conductor layer 2. The interaction of the piezoelectric field associated with the elastic oscillations and an electron current generated by a direct voltage applied across the electrodes 3 causes the elastic oscillations to be amplified, and this in turn amplifies the elastic oscillations in the ferromagnetic slab 1. A constant applied magnetic field produces a spin-acoustic resonant condition in the slab 1 and results in a multiplication of spin oscillations. A multilayer structure of alternating ferromagnetic and piezoelectric semiconductor layers may be provided, in which case transverse oscillations are obtained. The semiconductor layer 2 may be of CdS while the ferromagnetic slab 1 may be of yttrium-irongarnet.
GB5938370A 1969-12-13 1970-12-14 Method of generating spontaneous elastic-spin oscillations in ferromagnetopiezoelectric semiconductor circuits Expired GB1328649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL137535A PL63517B1 (en) 1969-12-13

Publications (1)

Publication Number Publication Date
GB1328649A true GB1328649A (en) 1973-08-30

Family

ID=19951074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5938370A Expired GB1328649A (en) 1969-12-13 1970-12-14 Method of generating spontaneous elastic-spin oscillations in ferromagnetopiezoelectric semiconductor circuits

Country Status (4)

Country Link
US (1) US3668441A (en)
JP (1) JPS4825821B1 (en)
FR (1) FR2116325B1 (en)
GB (1) GB1328649A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107769U (en) * 1983-01-11 1984-07-20 シ−アイ化成株式会社 Plug case
US7575197B2 (en) * 2004-05-17 2009-08-18 The Boeing Company Mobile transporter servicing unit for an operational ground support system
CN107478320B (en) * 2017-08-23 2019-11-05 京东方科技集团股份有限公司 Transistor sound sensing element and preparation method thereof, sonic transducer and portable equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL277613A (en) * 1961-04-26 1900-01-01
US3274406A (en) * 1963-01-31 1966-09-20 Rca Corp Acoustic-electromagnetic device
US3353118A (en) * 1964-05-19 1967-11-14 Teledyne Inc Magnetostatic wave variable delay apparatus
US3290610A (en) * 1966-02-21 1966-12-06 Bell Telephone Labor Inc Elastic traveling wave parametric amplifier
US3422371A (en) * 1967-07-24 1969-01-14 Sanders Associates Inc Thin film piezoelectric oscillator

Also Published As

Publication number Publication date
US3668441A (en) 1972-06-06
DE2061159B2 (en) 1976-07-22
FR2116325A1 (en) 1972-07-13
FR2116325B1 (en) 1973-12-07
DE2061159A1 (en) 1971-06-16
JPS4825821B1 (en) 1973-08-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees