Non-compensated spin moments and the positive exchange interaction of the co-directed spins results in :
Ferromagnetic material
Ferromagnetic material option is correct.
In magnetic classification, the response to an external field is set by two factors: the alignment of atomic spin moments and the sign of the exchange interaction between neighbouring spins. When exchange coupling is positive, adjacent spins align parallel; when the underlying spin moments do not cancel (non-compensated), the parallel alignment produces a large spontaneous net magnetisation below the Curie temperature. That is the definition of ferromagnetism, seen in iron, cobalt, nickel, and magnetite.
Antiferromagnets have negative exchange, giving antiparallel and fully compensated spins with essentially zero net moment. Paramagnets have unpaired spins but negligible exchange, so alignment is only transient in an applied field. Diamagnetic response arises from paired electrons and Lenz-law induction; it is weak, negative, and independent of spin exchange.
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Important Questions from Mixed Topic (MH-SET)
.................... is a client server application that identifies each host on the internet with a unique user-friendly name.
Every OS has a ................ or .......... which primarily resides in the main memory of the computer to perform some of the basic functions of the OS.
(i) Kernel
(ii) Interface
(iii) Nucleus
(iv) Compiler
Codes:
Which of the following are referred to as low level language?
(i) Machine language
(ii) Assembly language
(iii) High level language
(iv) Natural language
Codes:
Match the following:
List I List II (a) New York Public Library (i) Shelv AR (b) Miami University Augmented Research Group (ii) Smart library (c) Oula University Library (iii) Wolf Walk (d) North Carolina State University (iv) Find the future Codes:
Which part of the QR code represents the encoded data?
