There rotation the single domain with the reversed field
| C | –Hc | R | B | Field removal or reversal | S |
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● | S-279 | |
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| forward and reverse saturations (points S and | |||||||||
| S�). The hysteresis loop is represented by the | |||||||||
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| 0 | +Hc | ||||||||
oriented with the H field. Alteration of the domain structure with magnetic field for an iron single crystal is shown in the chapter-opening photograph for this chapter.
From saturation, point S in Figure 18.14, as the H field is reduced by reversal of field direction, the curve does not retrace its original path. A hysteresis effect is produced in which the B field lags behind the applied H field, or decreases at a lower rate. At zero H field (point R on the curve), there exists a residual B field that is called the remanence, or remanent flux density, Br; the material remains magnetized in the absence of an external H field.
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● | Chapter 18 / Magnetic Properties |
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H
| B |
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Soft
