Marek Wojciech Gutowski

9 Questions 385 Answers 0 Followers

Questions related from Marek Wojciech Gutowski

What is the meaning of magnetization vector on nanoscale?

I have serious troubles to understand the magnetization vector M at nanoscale, especially when skyrmions are present in the sample. In this situation the magnetic field at each skyrmion center is...

21 August 2018 10,102 8 View

Why are the negative results published so rarely?

Do you think this is a result of author's own attitude or rather the result of publishers' policies? Are the researchers unsure whether their measuring instruments are working perfectly or are...

30 June 2017 4,905 6 View

Why 9N-dimensional space is not exploited in classical mechanics?

In classical mechanics, we are accustomed to 6N-dimensional space (phase space) which is a good tool to describe the evolution of a set of material points. But material points are absent in...

18 May 2017 6,188 16 View

Why the gravitational constant is still a least precisely known physical constant?

G is usually measured with mechanical apparatus similar to that invented by Cavendish (sort of torsional pendulum). Oscillating test masses are made from metal, say stainless steel, thus they are...

31 March 2017 5,028 14 View

How do you position the angular data?

Many measurements produce angle-dependent data. For example, we measure the (ferromagnetic) resonance fields when the sample is positioned at various angles with respect to the external field...

13 September 2016 8,561 6 View

Do the highest curvature point(s) on a curve carry valuable information?

We are accustomed to investigate such points (of high curvature) in various graphs presenting experimental data, see for example the spectral peaks' maxima. But this question concerns not the...

15 September 2014 5,873 5 View

Anybody knows a good definition of "phase"?

Everybody understands things like solid, liquid or gaseous state of substance. We call them solid, liquid or gaseous phases, respectively. This is intuitive but hardly rigorous. Chemists, I'm...

05 November 2012 2,923 88 View

What might be said about magnetic field of a single photon?

We are familiar with phenomena like photoelectric effect or excitation of atoms/ions to higher energy states. Such excited atoms/ions sooner or later relax to lower energy levels by emitting...

01 January 1970 6,583 80 View

How about negative hysterons?

In many papers presenting FORC (First Order Reversal Curves) diagrams we can often see regions with negative amplitudes. They are presented, but never interpreted. Such hysterons have an obvious...

01 January 1970 2,932 0 View