## Physical Properties of Crystals |

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Page 218

which is the second of the Thomson relations; it connects the thermoelectric

power with the

derived this relation by applying the laws of thermodynamics (thermostatics). The

second ...

which is the second of the Thomson relations; it connects the thermoelectric

power with the

**Peltier**coefficient. It is interesting to recall that Thomson firstderived this relation by applying the laws of thermodynamics (thermostatics). The

second ...

Page 230

In order to avoid a transverse

that reduces [20] to the form O .N. • - O and we orient it so that the principal axis of

symmetry is parallel to a's. We apply equation (43) to the shaded volume.

In order to avoid a transverse

**Peltier**heat we take the crystal to have a symmetrythat reduces [20] to the form O .N. • - O and we orient it so that the principal axis of

symmetry is parallel to a's. We apply equation (43) to the shaded volume.

Page 231

Thomson's second relation follows from Onsager's Principle: do/dT = —(IIab/T). (

11) Hence we may write for the

heats, IIab = —T(db/dT) (11)* ra—r, H T(d°4/dT") J' (14) [2] Thermoelectric effects

in ...

Thomson's second relation follows from Onsager's Principle: do/dT = —(IIab/T). (

11) Hence we may write for the

**Peltier**heat and the difference of the Thomsonheats, IIab = —T(db/dT) (11)* ra—r, H T(d°4/dT") J' (14) [2] Thermoelectric effects

in ...

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### Contents

OPTICAL ACTIVITY | 11 |

THE GROUND WORK OF CRYSTAL PHYSICS | 11 |

EQUILIBRIUM PROPERTIES | 51 |

47 other sections not shown

### Common terms and phrases

angle applied axis body called centre Chapter classes coefficients components conductivity consider constant convention corresponding couple crystal cubic defined definition denoted depends derivatives direction effect elastic electric ellipsoid equal equation example expression faces field follows forces given gives hand heat heat flow Hence illustrated independent isothermal isotropic length magnetic magnitude matrix means measured method moduli normal notation obtained optical orientation parallel perpendicular physical piezoelectric plane plate polarization positive principal axes produced properties proportional proved pyroelectric quadric quantities radius referred refractive relation represented respect result reversible right-handed rotation second-rank tensor seen shear shown shows side similar simply strain stress suffixes surface symmetry symmetry elements Table temperature thermal expansion thermodynamics thermoelectric Thomson tion transformation unit values vector volume wave write written zero