ΜΕΛΕΤΗ ΜΑΓΝΗΤΟΑΝΤΙΣΤΑΣΗΣ ΣΕ ΜΟΝΟΚΡΥΣΤΑΛΛΟΥΣ FE7S8

THIS IS A STUDY OF THE MAGNETORESISTANCE IN ANTIFERROMAGNETIC SEMICONDUCTORS AND SPECIALLY IN PYRRHOTITE FE7S8 CUT FROM NATURAL SINGLE CRYSTALS (WITH ORIENTATIONS B C AND B// FROM 88 TO 607K. BEYOND THE NEEL POINT TN 600K AND FOR MAGNETIC FIELDS B FROM 0 TO 7 KG. A MAGNETORESISTANCE OF THE ORDER OF 10-3 WHICH IS ALWAYS NEGATIVE FOR SMALL B AND CHANGES SIGN FOR HIGHER MAGNETIC FIELDS WAS OBSERVED. AFTER THIS SIGN REVERSAL AND FOR INTERMEDIATE TEMPERATURES IN THE RANGE FROM 160 TO 400K APPROXIMATELY THE MAGNETORESISTANCE INCREASES MONOTONICALLY WITHB. ALTHOUGH FOR TEMPERATURES OUTSIDE THIS RANGE, ΔΡ/Ρ(O) EXHIBITS AN OSCILLATORY BEHAVIOUR.

Grantor dc:publisher

University of Patras

Year dc:date

1989

Author dc:creator

• Βιτωράτος, Ευάγγελος

• C-1 ΜΟΝΤΕΛΛΟ
• Αντισιδηρομαγνητισμός
• ΕΚΦΥΛΙΣΜΕΝΟΙ ΗΜΙΑΓΩΓΟΙ
• Μαγνητικοί ημιαγωγοί
• Μαγνητοαντίσταση
• ΠΥΡΡΟΤΙΝΗΣ
• ΣΟΥΛΦΙΔΙΑ ΤΟΥ ΣΙΔΗΡΟΥ
• ΣΥΜΠΥΚΝΩΜΕΝΗ ΥΛΗ: ΜΑΓΝΗΤΙΚΟΣ ΣΥΝΤΟΝΙΣΜΟΣ
• ΦΥΣΙΚΗ ΤΩΝ ΗΜΙΑΓΩΓΩΝ
• Antiferromagnetism
• C-1 MODEL
• CONDENSED MATTER: MAGNETIC RESONANCE
• FE7S8
• HEAVILY DOPPED SEMICONDUCTORS
• IRON SULFIDES
• MAGNETIC SEMICONDUCTORS
• Magnetoresistance
• PYRRHOTITE
• SEMI-CONDUCTOR PHYSICS
• Φυσικές Επιστήμες
• Φυσική
• Natural Sciences
• Physical Sciences

Language dc:language

gre

Identifier

10.12681/eadd/1172

OAI identifier oai:identifier

oai:10442/1172